API - Catalog Flanged Safety Relief Valves Series 526

APIFlanged Safety Relief Valves Series 526

CATALOGThe-Safety-Valve.com

Product RangeLESER Safety Valves for every industrial application

APIHigh Performance

Series 526Type 526

Compact Performance

Clean Service

H 2S O 4 HNO3 NH3 HCL

Critical Service

Modulate Action

Best Availability

ContentsChapter/Page

Applications, General design features Valve finder How to use: Signs and symbols, Flange drillings and facings How to use: Selection charts How to use: Capacity sheets LEOS/G LEOL Sour gas service

00/02 00/03 00/05 00/06 00/07

Outlet with flange rating class 300 Overview Spare parts Available options Approvals Capacities

01/74 01/76 01/84 01/85

D[Metric Units + US Units] [Metric Units + US Units] [Metric Units + US Units] 01/86 01/88 01/90 01/92

00/09 00/10 00/11

Steam Air Water

E F

Determination of coefficient of discharge Kdr / w

Type 526Materials

01/01 Options01/02 01/04 Caps and levers bolted 99/04 99/06 Caps and levers

99/0199/02

Conventional design Balanced bellows design

GMetal seat Soft seal disc Soft seal selection

How to order

Numbering system Article numbers Overview

01/06 01/08

H99/08 99/10

Dimensions

Metric Units US Units

01/10 01/12 Soft seal Balanced bellows 01/14 01/15 01/16 01/16 01/17 01/18 01/72 01/73 O-ring damper First in safety Fax Order 99/18 High temperature equipment Lift indicator Heating jacket 99/14 99/15 99/11 99/12

J K L99/16

Weights

Metric Units US Units

Orifice D T

Selection chart Article numbers, dimensions and weights Pressure temperature ratings

M N P Q R T

Flange drillings Flange facings

Plain lever H3 Closed bonnet Conventional design Cap H2 Closed bonnet Conventional design Packed lever H4 Closed bonnet Conventional design

Plain lever H3 Open bonnet Conventional design Cap H2 Closed bonnet Balanced bellows design

Options

Type 526

General

00/01

Type 526

General

General

General Information

LESER API Safety ValvesThe API product group represents Full range of spring loaded safety valves acc. to API 526 State-of-the-art design from the safety valve specialist Competitive solutions for the API market LESERs API safety valves

Are designed to meet all applications which require API. Open rapidly with an overpressure of max. 10 % to the full design lift. Have a maximum blowdown of minus 7 % for steam/gas service and minus 20 % for liquid service. Are developed in a close cooperation with plant engineers and service specialists. Serve for protection of processes and equipment. Are approved by all important approval organisations worldwide which ensures the worldwide applicability e.g.:

European Community: CE-marking acc. to Pressure Equipment Directive (PED) 97 / 23 / EC and EN ISO 4126-1 USA: UV-stamp acc. to ASME Section VIII Division 1, National Board certified capacities Germany: VdTV approval acc. to PED, EN ISO 4126-1, TV SV 100 and AD 2000-Merkblatt A2 Canada: Canadian Registration Number acc. to the requirements of particular provinces China: AQSIQ based on the approval acc. to ASME Section VIII Division 1 and AD 2000-Merkblatt A2

Furthermore, all LESER API safety valves are designed, marked, produced and approved acc. to the requirements of the following regulations (directives, codes, rules and standards). EN ISO 4126-7, EN 12266-1/-2, EN 1092 Part I and II flanging ASME PTC 25, ASME-Code Sec. II, ASME B 16.34 and ASME B16.5- flanging, API Std. 527, API RP 576 AD 2000-Merkblatt A4, AD 2000-Merkblatt HP0, TRD 110, TRD 421, TRD 721

00/01

LWN 480.01-E

General Information

ApplicationsLESER API Safety Valves offer ultimate protection against overpressures in all applications for steam, gases and liquids. LESERs API Series 526 Safety valves present the simple safe solution for heavy duty applications, such as crude oil extraction, transportation and processing in

General Design FeaturesLESERs API Safety Valves cover a large variety of types, materials and options to fit any application:

Refineries Chemical industry Petrochemical industry Oil and gas Onshore and Offshore Vessels and piping systems Blow-down systems Storage tank farms

Design fully in accordance with API 526 for easy interchangeability Complete API 526 range: valve sizes 1" through 8", orifice D through T Materials: WCB, WCC, CF8M, WC6, LCB, LCC, 1.0619 and a wide range of special materials to fulfill the requirements of critical applications Special B3 design for high back pressure applications and material requirements far beyond API Standard Fool proof design with fewer parts for built-in safety Integral cast support brackets for easy handling and safe installation Open or closed bonnet, packed or plain lifting lever or gastight cap Flanged connections according ASME and DIN guarantee a worldwide applicability One design and spring (single trim) for steam, gas and liquid applications reduces the number of spare parts and ensures low cost maintenance management. One-piece spindle reduces friction which leads to high operation accuracy Self-draining body design, avoids residues and reduces corrosion

LESERs API Safety Valves can be customized with a great variety of options, e.g.:

Special connections specified by the customer for optimised adaptation to the plant. Stellited or hardened metal sealing for longer product life Soft seat solutions for superior tightness Stainless steel bellows for back pressure compensation Heating jackets for applications with high viscosity fluids Any and every part can be produced in special material exactly to meet customer specification requirements

LWN 480.01-E

00/02

General

General

Valve finderHow to find the right Product GroupOrifice > F

High Performance

Required Orifice letter?

Orifice < F

Compact Performance

No

Liquid application and low capacity depending on Valve size?

Yes

Modulate Action

No

API specified application?

Yes

API

No

Critical Service / High Corrosive application?

Yes

Critical Service

No

Clean Service application?

Yes

Clean Service

How to find the right Safety Valve Product Group00/03 LWN 480.01-E

Valve finderHow to find the right API Safety ValveStep Procedere Reference

6 5

LESER Type 526

Determination of the code for lifting device

Cap H2

Plain lever H3

Packed lever H4

Plain lever H3 Open bonnet

Code for lifting device Lifting device Bonnet WCB 1.0619, WC6 1.7357, LCB CF8M 1.4408 H2 H3 H4 closed closed closed 2 2 3 4 4 H3 open 5

Selection chart

Specification tableArticle numbers, dimensions and weights

4 3 2 1

Type 526Selection chart150 x 150 5262.001X 300L x 150 WCB WC6

Orifice D300 x 150 5262.002X 5267.006X 600 x 150 5262.003X 5267.007X 900 x 300 1500 x 300 5262.004X 5267.008X 2500 x 300 5262.005X 5267.009X

Determination of:WC6

Article numbersValve size Flange rating class Inlet x Outlet400

p [bar]0 1000 900 800 700 600 500 25 50 75 100 150 200 250 300 350 400

1D2 150 x 150 14 154 5262.001 5264.010 5263.500

1D2 300L x 150 14 154

1D2 300 x 150 14 154 5262.002

Flange

WCB

rating class Article No.

Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB Art.-No. Art.-No. Art.-No. Art.-No.

300

200

T [F]

400 300 100 200 100 0 0 500 1000 1500 2000 3000 4000 5000 6000 0

T [C]

Use 1 D 2 300 x 150

5264.011 5267.006 5263.501

p [psig]

Application Corrosive service Non-corrosive service Temperature < -29 C < -20 F Selection chart CF8M Selection chart CF8M Temperature -46 to 343 C -50 to 650 F LCB (ASME B16.34) Temperature -29 C -20 F Selection chart WCB/WC6

Determination of the material

API RP 520Sizing, Selection and Installation of PressureRelieving Devices in Reneries Part I Sizing and Selection API RECOMMENDED PRACTICE 520 SEVENTH EDITION, JANUARY 2000

VALVESTAR (Sizing software)

Capacity tableCapacities SteamCapacities for saturated steam according to AD 2000-Merkblatt A2, based on set pressure plus 10 % overpressure. Capacities at 1 bar (14,5 psig) and below are based on 0,1 bar (1,45 psig) overpressure.

Determination of the required orice letter (sizing)For Orice > T see Type 441 XXL

Metric UnitsOrice Act. Orifice dia. d0 [mm] Act. Orifice area A0 LEOS/G*) 0,2 0,5 1 2 3 [mm2] [inch2]

AD 2000-Merkblatt A2 [kg/h]D 14 154 0,111 19 42 71 120 166 E 14 154 0,196 54 90 134 217 296 F 18 254 0,324 89 149 221 359 489 G 22,5 398 0,506 139 232 345 561 764 H 28,3 629 0,801 221 367 546 888 1209

Set pressure [bar]

Capacities [kg/h]

Fluid

Application data: Pressure, Capacity Fluid

LESER Type 526 offers single trim for steam, gas and liquids in one design. Steam Gases Liquids

temperature

How to find the right API Safety ValveLWN 480.01-E 00/04

General

General

How to useGeneral signs and symbols

*

This option is covered by standard design Available Not possible

Signs and symbols for flange drillings and flange facings

*(*)

Standard design, no option code required Flange dimensions except flange thickness are in accordance with flange standard (e.g. ASME B16.5) Flange thickness is smaller (max. 2 mm), see Multiple pressure rating Flange drilling/facing is not possible

Option code for flange drilling and dimension, e.g. H50 H50 Flange drilling as specified in flange standard Outer flange diameter, flange thickness and height of flange facing may be larger, see Dimensions Flange dimensions except flange thickness are in accordance with standard Flange thickness is smaller (max. 2 mm), see Multiple pressure rating Flange drilling as specified in standard/flange thickness may be smaller Outer flange diameter is smaller than required, but complete back side facing for nut is assured

(H50)

[H50]

Option code for flange facing, e.g. L38 L38 Flange facing as specified in flange standard

General information concerning flange drillings and flange facings Flange dimensions of LESER Type 526 exceed flange dimension as mentioned in ASME / ANSI B16.5 and DIN EN 1092. This exceedance is in accordance with API Standard 526, Section 2.4. Dimensions Dimensions: For some valve designs, the inlet raised face height may substantially exceed the nominal dimension specified in ASME / ANSI B16.5 (and DIN EN 1092). Consult the manufacturer for exact dimension. The reason for this exceedance is: - height of nozzle placed in the inlet of valve - due to the outer diameter of the nozzle thread flange thickness has to be thicker than normal ASME / ANSI B16.5 and DIN EN 1092 dimension to achieve the required pressure rating The flange standard shows the same drilling, facing and outer diameter for several pressure ratings, e.g. PN 16 up to PN 40 Due to the pressure rating of the casting LESER fulfills the requirements for flange thickness e.g. of PN 16 but not PN 40 The effective MSS SP-6 (Edition 2001) does not mention smooth finish anymore. In MSS SP-6 (Edition 1980) smooth finish is defined for finishes of contact flanges as 250 inch (6,3 m) AARH max.. LESER supplies flange facings according to ASME B16.5 1996, paragraph 6.4.4.3: Either a serrated concentric or serrated spiral finish resulting in service finish from 125 inch to 250 inch average roughness shall be furnished. This finish meets the requirements of MSS SP-6 (Edition 1980), which is not valid anymore! Stock finish is not defined in any technical standard. If purchase orders show stock finish LESER supplies standard facing according to DIN or ASME (marked with * in table Flange facings of each valve series).

Multiple pressure rating

Smooth finish

Stock finish

Materials Please find below a summary of material codes at LESER. Please note that - for every body material an inspection certificate 3.1 according to EN 10204 is available - many materials have a multiple inspection certificate 3.1. Material code 2 3 4 7 00/05 Flanged safety valve body Carbon steel Low temperature carbon steel Stainless steel High temperature carbon steel Body material is certified with 3.1 (EN 10204) for the following materials EN 1.0619 1.0619 1.4408 1.7357 ASME WCB, WCC LCB, LCC, WCB, WCC CF8M (Charpy test at -196C) WC6 LWN 480.01-E

How to useSelection chartsThe pages 01/16 01/71 contain selection charts and specification tables. They specify important data about the valves based on the API 526 fifth edition 2002 like

Valve size Body materials Flange rating classes

Set pressure and temperature limits Back pressure limits

ProcedureStep Procedure Reference API RP 520 VALVESTAR Sizing software Capacity tables (page 01/86 01/91)

1

Determination of the required flow area and orifice letter (sizing) Determination of:

2

Material Flange rating class Article No.

Selection charts (page 01/16 01/68) or Specification tables (page 01/17 01/71)

3

Determination of the material

Specification tables (page 01/17 01/71)

4

Determination of the code for lifting device

Specification tables (page 01/17 01/71)

Type 526Selection chartWCB WC6 150 x 150 5262.001X 300L x 150

Orifice D300 x 150 5262.002X 5267.006X 600 x 150 5262.003X 5267.007X

3

5

900 x 300

1500 x 300 5262.004X 5267.008X

4 2500 x 300 5262.005X 5267.009X

6

1

p [bar]0 1000 25 50 75 100 150 200

241,4250 300 350 400

WC6

900 800 700 600

400

300

2

WCB

2

500

T [F]

5

400 300

6100

200 100 0 0 500 1000 1500 2000 3000 0

35001

4000

5000

6000

p [psig]

ExplanationNo.1 2 3 4 5 6

Description Set pressure Temperature Required orifice letter Flange rating class Material Article No. (X = Code for lifting device) p T 241,4 bar 217 C

Example 3500 psig 480 F D 2500 x 300 WCB 1.0619 5262.005X 00/06

LWN 480.01-E

T [C]

480

217200

General

General

How to useSample Capacity sheet How to select capacities for steam: Type 526, Valve size 1 F 2

Type 526 Capacities SteamCapacities for saturated steam according to AD 2000-Merkblatt A2, based on set pressure plus 10 % overpressure. 8 Capacities at 1 bar (14,5 psig) and below are based on 0,1 bar (1,45 psig) overpressure. Capacities for saturated steam according to ASME Section VIII (UV), based on set pressure plus 10% overpressure. Capacities at 2,07 bar (30 psig) and below are based on 0,207 bar (3 psig) overpressure.

1

Metric UnitsOrice Act. Orifice dia. d0 [mm] Act. Orifice area A0 [mm2] LEOS/G*) 0,2 0,5 1 2 3*)

AD 2000-Merkblatt A2 [kg/h]D 14 154 0,111 19 42 71 120 166 E 14 3 154 F 182 G

US UnitsOrice Act. Orifice dia. d0 [inch] Act. Orifice area A0 [inch2] LEOS/G*) 15 20 30 40 50 [inch2] Set pressure [psig]

ASME Section VIII [lb/h]D 0,551 0,239 0,111 183 211 266 328 389 E 0,551 0,239 0,196 321 371 469 577 686 F 0,709 0,394 0,324 531 613 775 954 1133 G 0,886 0,616 0,506 830 957 1212 1491 1771 H 1,11 0,975 0,801 1313 1515 1917 2359 2802

H 28,3 629 0,801 221 367 546 888 1209

22,5 0,506 139 2327

254 4 398

[inch2]6

0,196 5 0,324 54 90 134 217 296 89 149 221 359 489

Set pressure [bar]

Capacities [kg/h]

Capacities [lb/h]

345 561 764

LEOS/G = LESER Effective Orifice steam/gas please refer to page 00/09

ExplanationNo. Description

Type 526, Valve size 1 F 2Metric Units US Units Example

1

Code

AD 2000-Merkblatt A2

2

Orifice

F

3

Actual orifice diameter

d0 A0 LEOS/G

[mm]

[inch]

18

4

Actual orifice area

[mm2]

[inch2]

254

5

LESER Effective Orifice

[inch2]

[inch2]

0,324

6

Set pressure

[barg] [kg/h]

[psig]

1

7

Capacity

[lb/h]

221

8

Base of calculation

see table page 00/08

00/07

LWN 480.01-E

How to use8

Base of calculationMetric Units CodeMedia STEAM (saturated steam) Standard conditions Steam table IAPWS-IF97 IAPWS Industrial Formulation for the Thermodynamic Properties of Water and Steam Steam table IAPWS-IF97 IAPWS Industrial Formulation for the Thermodynamic Properties of Water and Steam

US Units Capacity calculation according to ASME Section VIII (UV)

Capacity calculation according to AD 2000-Merkblatt A2

[kg/h]

[lb/h]

AIR

Standard conditions

0 C and 1013 mbar

[mn3/h]

16 C (60 F)

[S.C.F.M.]

WATER

Standard conditions

20 C (68 F)

[103 kg/h]

21 C (70 F)

[US-G.P.M.]

All Media Calculation pressure

Set pressure plus 10 % overpressure

Set pressure plus 10 % overpressure

Calculation pressure for low set pressure

Capacities at 1 bar (14,5 psig) and below are based on 0,1 bar (1,45 psig) overpressure.

Capacities at 2,07 bar (30 psig) and below are based on 0,207 bar (3 psig) overpressure.

Example

Capacity calculation pressureMetric Units US Units Set pressure Capacity calculation pressure

Set pressure

Capacity calculation pressure

10 bar

10 bar + 10% overpressure = 11 bar

145 psig

145 psig + 10% overpressure = 159,5 psig

0,5 bar5

0,5 bar + 0,1 bar overpressure = 0,6 bar

20 psig

20 psig + 3 psig overpressure = 23 psig

LESER Effective OrificePressure relief devices may be initially sized using the equations shown in API RP 520, sections 3.6 through 3.10 as appropriate for vapors, gases, liquids, or two phase flow. These equations utilize effective coefficient of discharge (S/G 0,975, L 0,650) and effective areas (acc. to API Std. 526, Fifth Edition, June 2002, table 1) which are independent of any specific valve design. In this way the designer can determine a preliminary pressure relief valve size. By using the LESER Effective Orifice the designer can directly select a LESER safety relief valve after calculating the oriffice letter. In this case, a verification of the sizing with the selected actual orifice and the rated coefficient of discharge is not necessary.

LEOS/G

LESER Effective Orifice (for steam, gas and vapor)

[inch2] [inch2]

refer to page 00/09

LEOL

LESER Effective Orifice (for liquid)

refer to page 00/10

For further information refer to LESER Engineering Handbook

LWN 480.01-E

00/08

General

General

LEOS/GThis table is based on the rated coefficient of discharge for steams and gases of LESER safety valves certified by ASME. The appropriated K-values are shown in the column K-value of the table.

LEOS/G [inch2] = A0 [inch2] .

K ( 0,975 )

LEOS/GOrifice acc. API 526 Flange rating class

LESER Effective Orifice (for steam, gas and vapor)Valve size d0 [inch] d0 [mm] K-value LEOS/G [inch2] % of higher orice % of lower orice

D 150 600 900 1500 2500 E 150 600 900 1500 2500 F 150 600 900 2500 G 150 900 1500 2500 H 150 300L 300 1500 J 150 300L 300 1500 K 150 600 900 1500 L 150 300L 300 1500 M 150 900 N 150 900 P 150 900 Q 150 600 R 150 300 600 T 150 300 8 T 10 6,358 161,5 0,801 6R8 6 R 10 4,980 4,980 126,5 126,5 0,801 0,801 6Q8 4,154 105,5 0,801 4P6 3,150 80,0 0,801 4N6 2,598 66,0 0,801 4M6 2,374 60,3 0,801 3L4 4L6 2,106 2,106 53,5 53,5 0,801 0,801 3K4 3K6 1,693 1,693 43,0 43,0 0,801 0,801 2J3 3J4 1,417 1,417 36,0 36,0 0,801 0,801 1 1/2 H 3 2H3 1,114 1,114 28,3 28,3 0,801 0,801 1 1/2 G 3 2G3 0,886 0,886 22,5 22,5 0,801 0,801 1 1/2 F 2 1 1/2 F 3 0,709 0,709 18,0 18,0 0,801 0,801 1E2 1 1/2 E 2 1 1/2 E 3 0,551 0,551 0,551 14,0 14,0 14,0 0,801 0,801 0,801 1D2 1 1/2 D 2 1 1/2 D 3 0,551 0,551 0,551 14,0 14,0 14,0 0,455 0,455 0,455

0,110 0,111 0,111 0,111 0,196 0,196 0,196 0,196 0,307 0,324 0,324 0,503 0,506 0,506 0,785 0,801 0,801 1,287 1,296 1,296 1,838 1,849 1,849 2,853 2,863 2,863 3,600 3,637 4,340 4,357 6,380 6,401 11,050 11,132 16,000 16,004 16,004 26,000 26,085

100,0% 56,8% 56,8% 56,8% 100,0% 63,9% 63,9% 63,9% 100,0% 64,4% 64,4% 100,0% 64,5% 64,5% 100,0% 62,2% 62,2% 100,0% 70,5% 70,5% 100,0% 64,8% 64,8% 100,0% 79,5% 79,5% 100,0% 83,8% 100,0% 68,3% 100,0% 57,9% 100,0% 69,6% 100,0% 61,6% 61,6% 100,0%

100,0% 101,2% 101,2% 101,2% 100,0% 100,0% 100,0% 100,0% 100,0% 105,5% 105,5% 100,0% 100,7% 100,7% 100,0% 102,0% 102,0% 100,0% 100,7% 100,7% 100,0% 100,6% 100,6% 100,0% 100,3% 100,3% 100,0% 101,0% 100,0% 100,4% 100,0% 100,3% 100,0% 100,7% 100,0% 100,0% 100,0% 100,0% 100,3%

00/09

LWN 480.01-E

LEOLThis table is based on the rated coefficient of discharge for steams and gases of LESER safety valves certified by ASME. The appropriated K-values are shown in the column K-value of the table.

LEOL [inch2] = A0 [inch2] .

K ( 0,650 )

LEOLOrifice acc. API 526 Flange rating class

LESER Effective Orifice (for liquid)Valve size d0 [inch] d0 [mm] K-value LEOL [inch2] % of higher orice % of lower orice

D 150 600 900 1500 2500 E 150 600 900 1500 2500 F 150 600 900 2500 G 150 900 1500 2500 H 150 300L 300 1500 J 150 300L 300 1500 K 150 600 900 1500 L 150 300L 300 1500 M 150 900 N 150 900 P 150 900 Q 150 600 R 150 300 600 T 150 300 8 T 10 6,358 161,5 0,579 6R8 6 R 10 4,980 4,980 126,5 126,5 0,579 0,579 6Q8 4,154 105,5 0,579 4P6 3,150 80,0 0,579 4N6 2,598 66,0 0,579 4M6 2,374 60,3 0,579 3L4 4L6 2,106 2,106 53,5 53,5 0,579 0,579 3K4 3K6 1,693 1,693 43,0 43,0 0,579 0,579 2J3 3J4 1,417 1,417 36,0 36,0 0,579 0,579 1 1/2 H 3 2H3 1,114 1,114 28,3 28,3 0,579 0,579 1 1/2 G 3 2G3 0,886 0,886 22,5 22,5 0,579 0,579 1 1/2 F 2 1 1/2 F 3 0,709 0,709 18,0 18,0 0,579 0,579 1E2 1 1/2 E 2 1 1/2 E 3 0,551 0,551 0,551 14,0 14,0 14,0 0,579 0,579 0,579 1D2 1 1/2 D 2 1 1/2 D 3 0,551 0,551 0,551 14,0 14,0 14,0 0,343 0,343 0,343

0,110 0,126 0,126 0,126 0,196 0,213 0,213 0,213 0,307 0,351 0,351 0,503 0,549 0,549 0,785 0,868 0,868 1,287 1,405 1,405 1,838 2,005 2,005 2,853 3,104 3,104 3,600 3,943 4,340 4,724 6,380 6,940 11,050 12,070 16,000 17,353 17,353 26,000 28,283

100,0% 64,2% 64,2% 64,2% 100,0% 69,2% 69,2% 69,2% 100,0% 69,8% 69,8% 100,0% 69,9% 69,9% 100,0% 67,5% 67,5% 100,0% 76,5% 76,5% 100,0% 70,3% 70,3% 100,0% 86,2% 86,2% 100,0% 90,9% 100,0% 74,0% 100,0% 62,8% 100,0% 75,4% 100,0% 66,7% 66,7% 100,0%

100,0% 114,5% 114,5% 114,5% 100,0% 108,4% 108,4% 108,4% 100,0% 114,4% 114,4% 100,0% 109,1% 109,1% 100,0% 110,6% 110,6% 100,0% 109,2% 109,2% 100,0% 109,1% 109,1% 100,0% 108,8% 108,8% 100,0% 109,5% 100,0% 108,8% 100,0% 108,8% 100,0% 109,2% 100,0% 108,5% 108,5% 100,0% 108,8%

LWN 480.01-E

00/10

General

General

Sour gas service (H2S)Normative basis

In accordance with NACE standard MR 0175-2003 sour gas service means the presence of H2S in the following conditions: Part 1.4.1.1.: All gas, gas condensate, and sour crude oil When the partial pressure of H2S in a wet (water as a liquid) gas phase of a gas, gas condensate, or crude oil system is equal to or exceeds 0,003 barg (0,05 psia)

Exceptions are: Part 1.4.2.1.: Low-pressure gas: When the total pressure is lower than 4,5 bara (65psia) Part 1.4.2.2.: Low-pressure oil and gas multiphase systems: Other Sour gas standards: NACE MR 0103-2003: Materials resistance to sulfide stress cracking in corrosive petroleum refining environments. DIN EN ISO 15156-1: Petroleum and natural gas industries Materials for use in H2S-containing environments in oil and gas production Part 1: General principles for selection of cracking-resistant materials (ISO 15156-1:2001) Miscellaneous Workstandards: Please refer to LWN 001.91General requirements for sour gas service

The above mentioned standards require a maximum hardness of 22 HRC for the most steels. For the actual requirements of a specific material please refer to the applied standard.LESER sour gas level

General: Sour gas material requirements must be fulfilled if pressure and partial pressure conditions according to the applied standard exist.

Based on these general statement LESER defines two sour gas level for safety valves:Level 1 Part definition Contact with the medium in closed position Conventional Balanced bellows Level 2 Contact with the medium in opened position Conventional Balanced bellows

Contact area

Pressure requirements Safety valve operation Conventional design Parts concerned Balanced bellows design Necessary material modification Type Body material Design Conventional 5262 5263 5267 WCB 1.0619 LCB WC6 1.7357 Part Disc Disc Bellows

Set pressure 4,5 bara (65psia) closed Nozzle Disc Nozzle Disc

Back pressure 4,5 bara (65psia) closed / opened All Nozzle Disc Bonnet spacer Bellows

Material 1.4404 / 316L stellited 1.4404 / 316L stellited 1.4571 / 316Ti

Option code J25 J25 J78

Material

Option code

Please choose balanced bellows design 1.4404 / 316L stellited 1.4571 / 316Ti J25 J78

Balanced bellows

Conventional 5264 CF8M 1.4408 Balanced bellows Bellows

No modification required 1.4571 / 316Ti J78

No modification required 1.4571 / 316Ti J78

00/11

LWN 480.01-E

Type 526 Packed lever H4 Closed bonnet Conventional design

Type 526Flanged Safety Relief Valves spring loadedContents Chapter/PageMaterials Conventional design Balanced bellows design How to order Numbering system Article numbers Dimensions Metric Units US Units Weights Metric Units US Units Orifice [ D T ] Selection charts / Article numbers, dimensions and weights Pressure temperature ratings [Metric Units + US Units] Flange drillings Flange facings Outlet with flange rating class 300 Spare parts Available options Approvals Capacities Steam [Metric Units + US Units] Air [Metric Units + US Units] Water [Metric Units + US Units] 01/02 01/04 01/06 01/08 01/10 01/12 01/14 01/15

01/16 01/18 01/72 01/73 01/74 01/76 01/84 01/85 01/86 01/88 01/90

LWN 480.01-E

01/01

Type 526

Type 526Conventional design

Type 526

40

Cap H2 Lock nut Adjusting screw Needle bearing Spring plate Spring Spindle Bonnet Split ring Spring plate Stud Nut Guide Gasket Lift stopper Ball Screw Ball Lock screw Disc Adjusting ring Body Nozzle

19

18

69

16

54

12

9

14

17

55

56

8

Plug

64 60

22

57

66

61

73

7

6

1

5

01/02

LWN 480.01-E

Type 526Conventional design

MaterialsItem Component Standard Service Type 5262 Corrosive Service Type 5264 Trim: Standard Trim: Standard Type 5267 Trim: Standard Type 5263 Trim: Standard

1 5 6 7 8 9 12 14 16 / 17

Body Nozzle1) Adjusting ring Disc Guide Bonnet Spindle Split ring Spring plate Adjusting screw

1.0619 SA 216 WCB 1.4404 316 L 1.4408 CF8M 1.4122 Hardened stainless steel 1.4404 316 L 1.0619 SA 216 WCB 1.4021 420 1.4104 Chrome steel 1.0718 Steel 1.4104 Chrome steel PTFE with 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel Steel " 1.4401 B8M 1.4404 316L 1.4404 8M

1.4408 SA 315 CF8M 1.4404 316L 1.4408 CF8M 1.4404 stellited 316L stellited 1.4404 316L 1.4404, 1.4571 SA 479 316L, 316Ti 1.4021 420 1.4404 316L 1.4404 316L 1.4404 tenifer 316L tenifer PTFE 15% Glas " 1.4404 316L 1.4404 316L 1.4404 316L 1.4310 Stainless steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.4401 316 1.4401 B8M 1.4401 B8M 1.4404 316 L 1.4404 8M

1.7357 SA 217 WC6 1.4404 stellited 316L stellited 1.4404 316L 1.4122 Hardened stainless steel 1.4404 316L 1.7357 SA 217 WC6 1.4021 420 1.4104 Chrome steel 1.0718 Steel 1.4104 Chrome steel PTFE 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel Steel " 1.4401 B8M 1.4404 316L 1.4404 8M

SA 352 LCB 1.4404 316L 1.4408 CF8M 1.4122 Hardened stainless steel 1.4404 316L SA 352 LCB 1.4021 420 1.4104 Chrome steel 1.0718 Steel 1.4104 Chrome steel PTFE 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel Steel " 1.4401 B8M 1.4404 316L 1.4404 8M

18 with bushing 19 22 40 54 55 56 57 60 61 64 66 69 73 Lock nut Lift stopper Cap H2 Spring Stud Nut Ball Gasket Ball Plug Screw Needle bearing Lock screw

1)

Stellited sealing surfaces please refer to page 99/06 Special materials: Body and trim available in various materials (Monel, Hastelloy ...). For nozzle and disc machined from the bar a short lead time is possible.

Please notice: - Modications reserved by LESER - LESER can upgrade materials without notice - Every part can be replaced by other material acc. to customer specification.

LWN 480.01-E

01/03

Type 526

Type 526Balanced bellows design

Type 526

40

Cap H2 Lock nut Adjusting screw Needle bearing Spring plate Spring Spindle Bonnet Split ring Spring plate Stud Nut Guide Gasket Bonnet spacer Bellows Ball Screw Ball Disc Lock screw Adjusting ring Body Nozzle

19

18

69

16

54

12

9

14

17

55

56

8

60

11

15

57

66

61

7

73

6

1

5

01/04

LWN 480.01-E

Type 526Balanced bellows designMaterialsItem Component

1 5 6 7 8

Body Nozzle2) Adjusting ring Disc Guide Bonnet

1.0619 SA 216 WCB 1.4404 316 L 1.4408 CF8M 1.4122 Hardened stainless steel 1.4404 316 L 1.0619 SA 216 WCB 1.0305 Steel 1.0460 Carbon steel 1.4021 420 1.4104 Chrome steel 1.4571 316 Ti 1.0718 Steel 1.4104 Chrome steel PTFE with 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel 1.4401 B8M 1.4404 316L 1.4404 8M2)

1.4408 SA 315 CF8M 1.4404 316L 1.4408 CF8M 1.4404 stellited 316L stellited 1.4404 316L 1.4404, 1.4571 SA 479 316L, 316Ti 1.4571 SA 479 316Ti 1.4404 SA 479 316L 1.4021 420 1.4404 316L 1.4571 316 Ti 1.4404 316L 1.4404 tenifer 316L tenifer PTFE 15% Glas " 1.4404 316L 1.4404 316L 1.4404 316L 1.4310 Stainless steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.4401 316 1.4401 B8M 1.4404 316 L 1.4404 8M

1.7357 SA 217 WC6 1.4404 stellited 316L stellited 1.4404 316L 1.4122 Hardened stainless steel 1.4404 316L 1.7357 SA 217 WC6 1.0305 Steel 1.4404 SA 479 316L 1.4021 420 1.4104 Chrome steel 1.4571 316 Ti 1.0718 Steel 1.4104 Chrome steel PTFE 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.7709 B16 1.7258 7M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel 1.4401 B8M 1.4404 316L 1.4404 8M

SA 352 LCB 1.4404 316L 1.4408 CF8M 1.4122 Hardened stainless steel 1.4404 316L SA 352 LCB 1.0305 Steel 1.4404 316L 1.4021 420 1.4104 Chrome steel 1.4571 316 Ti 1.0718 Steel 1.4104 Chrome steel PTFE 15% Glas " 1.0718 Steel 1.4404 316L 1.0718 Steel 1.8159 High temp. alloy steel 1.4401 B8M 1.4401 8M 1.4401 316 Graphite / 1.4401 Graphite / 316 1.3541 Hardened stainless steel 1.4401 B8M 1.4404 316L 1.4404 8M

9 Valve size 6 R 10, 8T10 11 12 14 15 16 / 17 Bonnet spacer1) Spindle Split ring Bellows Spring plate Adjusting screw 18 with bushing 19 22 40 54 55 56 57 60 61 66 69 73 Lock nut Lift stopper Cap H2 Spring Stud Nut Ball Gasket Ball Screw Needle bearing Lock screw

1)

Valve size 6 R 10 and 8 T 10 without bonnet spacer

Stellited sealing surfaces please refer to page 99/06 Special materials: Body and trim available in various materials (Monel, Hastelloy ...). For nozzle and disc machined from the bar a short lead time is possible.

Please notice: - Modications reserved by LESER - LESER can upgrade materials without notice - Every part can be replaced by other material acc. to customer specification.

LWN 480.01-E

01/05

Type 526

Standard Service Type 5262 Corrosive Service Type 5264 Trim: Standard Trim: Standard

Type 5267 Trim: Standard

Type 5263 Trim: Standard

Type 526How to order Numbering system

Type 526

11 1 2Code 2 3 4 7

Article Number2 3 4

2

Set Pressure

3

Connections

Please state unit (in gauge)! Please do not exceed the pressure range defined in the spring charts.

If different from API 526 Standard please refer to page 01/72.

526 2 . 001 2Valve Type 526

Material code Body + bonnet material WCB 1.0619 LCB CF8M 1.4408 WC6 1.7357

3

Valve code Identifies valve size, body material, orifice and flange class. Refer to page 01/08 and 01/09.

4Code 2 3 4 5 Lifting leverscrewed cap plain lever packed lever plain lever with open bonnet

H2 H3 H4 H3

5262.0012 Article No.

5 barg Set Pressure

H45 Connections

01/06

LWN 480.01-E

Type 526

4Type 526 RJ groove inlet O-ring-disc

OptionsOption code L58 J21 J22 J23 J20 J25 L62 J68 J78 J88 X04 J39 J93 J70 J69 J85 H01 H29 H30 H31 H32 K31 K32 H33 K01 K06

5

Documentation

61 1 2

Code and Medium2

Please select requested documentation: Inspections, tests: Option Code DIN EN 10204-3.2: TV-Nord Certificate for test pressure M33 LESER Certificate for Global Application - Inspection certificate 3.1 acc. to DIN EN 10204 - Declaration of conformity acc. to PED 97/23/EC Material test certificate: DIN EN 10204-3.1 Part Body Bonnet Cap / lever cover Nozzle Disc Studs Nuts Option code H01 L30 L31 L59 L23 N07 N08

3 . 1Code 1. ASME Section VIII 2. CE / VdTUEV 3. ASME Section VIII + CE / VdTUEV

CR K EPDM D FKM L FFKM C Disc 1.4404 / 316L stellited Nozzle 1.4404 / 316L stellited Stainless steel bellows - open bonnet - closed bonnet - high temperature equipment (Type 5267 only) Stainless steel spring Adaptor for lift indicator H4 Lift indicator Test gag - cap H2 - packed lever H4 Free of oil and grease Materials - NACE Heating jacket - Couplings G 3/8 G 3/4 - Flanges DN 15 DN 25 1/ " class 150 2 1" class 150 - Bonnet spacer Bolted cap H1 Bolted lifting device H6 Option code applies only if not standard

H03

Medium .1 Gases .2 Liquids .3 Steam .0 Steam / Gases / Liquids (valid only for CE / VdTUEV)

J22 Options

H01

L30

3.1 Code and Medium

Documentation

LWN 480.01-E

01/07

Type 526

Type 526Article numbers Overview

Type 526

Article numbersMaterial Flange class Valve size 5262. 001WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB

150 x 150 1D2 5264. 010 1E2 5263. 500

300L x 150 1D2 Use 1 D 2 300 x 150 1E2 5262. 002

300 x 150 1D2 5264. 011 5267. 006 5263. 501

D E

1E2 5262. 016 5264. 025 5267. 020 5263. 506

5262. 015

5264. 024 1 1 /2 F 2

5263. 505

Use 1 E 2 300 x 150 1 1/2 F 2 5262. 030 5264. 040 1 1/2 G 3 5263. 511

1 1 /2 F 2 5262. 031 5264. 041 5267. 035 5263. 512

F

5262. 029

5264. 039 1 1 /2 G 3

5263. 510

1 1 /2 G 3 5263. 517 5262. 047 5264. 112 5267. 052 5263. 518

GFlange class Valve size

5262. 045

5264. 110

5263. 516

5262. 046

5264. 111

150 x 150 1 1 /2 H 3 5262. 142 5264. 152 2J3 5263. 523 5262. 143

300L x 150 1 1/2 H 3 5264. 153 2J3 5263. 524 5262. 144

300 x 150 2H3 5264. 154 5267. 148 5263. 525

H J

3J4 5263. 530 5262. 164 5264. 198 5267. 168 5263. 531

5262. 162

5264. 196 3K4

5263. 529

5262. 163

5264. 197 3K4

3K4 5262. 203 5264. 212 5267. 207 5263. 536

KFlange class Valve size

5262. 202

5264. 211

5263. 535

Use 3 K 4 300 x 150 300L x 150 3L4

150 x 150 3L4 5262. 232 5264. 242 4M6 5263. 540 5262. 233

300 x 150 4L6 5263. 541 5262. 234 5264. 244 5267. 238 5263. 542

L M

5264. 243 4M6

4M6 5262. 581 5264. 588 5267. 584 5263. 547

5262. 580

5264. 587 4N6

5263. 546

Use 4 M 6 300 x 150 4N6

4N6 5262. 591 5264. 598 5267. 594 5263. 551

N

5262. 590

5264. 597 4P6

5263. 550

Use 4 N 6 300 x 150 4P6 5262. 646 5264. 654 6Q8 5263. 555

4P6 5262. 647 5264. 655 5267. 650 5263. 556

P

5262. 645

5264. 653 6Q8

5263. 554

6Q8 5262. 658 5264. 663 5267. 660 5263. 560

Q

5262. 657

5264. 662 6R8

5263. 559

Use 6 Q 8 300 x 150 6R8 5262. 666 5264. 672 5267. 669 5263. 563

6 R 10 5262. 667 5264. 673 8 T 10 5262. 676 5264. 679 5267. 677 5263. 567 5263. 564

R

5262. 665

5264. 671 8 T 10

5263. 562

8 T 10 5263. 566 Use 8 T 10 300 x 150

T

5262. 675

5264. 678

01/08

LWN 480.01-E

Type 526Article numbers Overview

Article numbersMaterial Flange class Valve sizeWCB CF8M WC6 LCB WCB CF8M WC6 LCB WCB CF8M WC6 LCB WCB CF8M WC6 LCB 1.0619 1.4408 1.7357 1.0619 1.4408 1.7357 1.0619 1.4408 1.7357 1.0619 1.4408 1.7357

600 x 150 1D2 5262. 5264. 5267. 5263. 003 012 007 502 1E2

900 x 300 1 1 /2 D 2 Use 1 1/2 D 2 1500 x 300 1 1/2 E 2 Use 1 2 E 2 1500 x 300 1 1 /2 F 3 Use 1 1/2 F 3 1500 x 300 1 1 /2 G 31/

1500 x 300 1 1 /2 D 2

2500 x 300 1 1/2 D 3

D E

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 004 013 008 503 005 014 009 504 1 1/2 E 2 1 1/2 E 3

5262. 5264. 5267. 5263. 017 026 021 507 1 1/2 F 2

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 018 027 022 508 019 028 023 509 1 1/2 F 3 1 1/2 F 3

F

5262. 5264. 5267. 5263. 032 042 036 513 1 1/2 G 3

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 033 043 037 514 034 044 038 515 2G3 2G3


5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 048 113 053 519 049 114 054 520 050 115 055 521 051 116 056 522 600 x 150 2H3 900 x 150 2H3 1500 x 300 2H3

H J

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 145 155 149 526 146 156 150 527 147 157 151 528 3J4 3J4 3J4

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 165 199 169 532 166 200 170 533 167 201 171 534 3K4 3K6 3K6


5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 204 213 208 537 205 214 209 538 206 215 210 539 600 x 150 4L6 900 x 150 4L6 1500 x 150 4L6 5267. 5263. 241 545

L M

5262. 5264. 5267. 5263. 5262. 5264. 5267. 5263. 5262. 235 245 239 543 236 246 240 544 237 4M6 5262. 5264. 5267. 5263. 5262. 582 589 585 548 583 4N6 4M6 5267. 5263. 586 549 4N6 5267. 5263. 596 553 4P6 5267. 5263. 652 558

N

5262. 5264. 5267. 5263. 5262. 592 599 595 552 593 4P6

P

5262. 5264. 5267. 5263. 5262. 648 656 651 557 649 6Q8

Q

5262. 5264. 5267. 5263. 659 664 661 561 6 R 10)

Please add code for the required cap or lifting device. Code for lifting device Bonnet H2 closed 2 2 H3 closed 3 H4 closed 4 4 H3 open 5

R

5262. 5264. 5267. 5263. 668 674 670 565 8 T 10

T

WCB 1.0619, WC6 1.7357, LCB CF8M 1.4408

LWN 480.01-E

01/09

Type 526

Type 526Dimensions

Type 526

Metric UnitsHmax. Safety valve dimensions [mm] Support brackets [mm] Flange rating class Valve sized0 [mm] A0 [mm2] d0 [mm] A0 [mm2] 14 154

Hmax. a A b B s C 300L x 150 1D2 Hmax. Dwith bellows

Hmax. a A b B s C 300 x 150 1D2 105 130 105 130 114 114 152 152 30 14 1E2 30 14 1 1/2 F 2 35 14 1 1 /2 G 3 35 14 300 x 150 2H3 440 132 536 148 536 148 465 16 561 16 574 16 440 132 465 16 Hmax. Dwith bellows

a A

b B

s C

Hmax. D

with bellows

E

E

E

150 x 150 1D2 105 130 105 130 124 162 124 162 114 114 121 121 30 14 1E2 30 14 1 1 /2 F 2 32 14 1 1 /2 G 3 32 14 150 x 150 1 1/2 H 328,3 629

D E F G

440 132 440 132 536 148 536 148

465 16 465 16 561 16 574 16 124 162 124 162

Please see 1 D 2 300 x 150 1E2 Please see 1 E 2 300 x 150 1 1/2 F 2 121 121 32 14 1 1/2 G 3 32 14 1 1/2 H 3 536 148 574 16 536 148 561 16

14 154

d0 [mm] A0 [mm2] d0 [mm] A0 [mm2]

18 254

124 162 124 162

22,5 398

Flange rating class Valve sized0 [mm] A0 [mm2] d0 [mm] A0 [mm2] WCB, LCB, d0 [mm] CF8M (WC6) A0 [mm2] WC6

300L x 150 542 155 673 184 758 206 580 16 722 16 796 25 130 162 137 184 124 124 110 38 14 2J3 49 14 3K4 Please see 3 K 4 300 x 150 156 238 162 140 673 184 722 16 184 238 181 140 542 155 580 16 130 184 124 110

H J

130 162 137 184 156 238

124 124 110 162 140

38 14 2J3 49 14 3K4 49 18

43 14 2J3 49 18 3K4 49 18

666 177 786 234 758 206

692 16 824 25 796 25

36 1018

43 1452

K

Flange rating class Valve sized0 [mm] A0 [mm2] d0 [mm] A0 [mm2] 53,5 2248

150 x 150 3L4 156 238 178 278 197 278 181 278 240 370 240 370 276 470 165 140 184 160 210 160 229 160 241 210 241 210 279 150 49 18 4M6 48 18 4N6 48 18 4P6 48 18 6Q8 68 18 6R8 68 18 8 T 10 62 18 758 206 852 260 871 280 855 262 1120 346 1120 346 1462 497 796 25 885 25 904 25 888 25 1200 25 1200 25 1462 25 240 370 181 278 156 238

300L x 150 3L4 165 140 49 18 4M6 Please see 4 M 6 300 x 150 4N6 Please see 4 N 6 300 x 150 4P6 229 160 48 18 6Q8 Please see 6 Q 8 300 x 150 6R8 241 210 68 18 8 T 10 Please see 8 T 10 300 x 150 276 470 279 150 1120 346 1200 25 240 470 267 150 240 370 241 210 855 262 888 25 225 370 254 210 197 278 210 160 178 278 184 160 758 206 796 25 179 278 181 160

300 x 150 4L6 49 18 4M6 48 18 4N6 48 18 4P6 62 18 6Q8 68 18 6 R 10 68 18 8 T 10 62 18 1462 497 1462 25 1426 460 1426 25 1120 346 1200 25 1079 306 1138 25 871 280 904 25 852 260 885 25 853 262 886 25

L M N P Q R T

60,3 2856

d0 [mm] A0 [mm2] d0 [mm] A0 [mm2]

66 3421

80 5027

d0 [mm] A0 [mm2] d0 [mm]

105,5 8742

126,5

A0 [mm2] 12568 d0 [mm] 161,5

A0 [mm2] 20485

01/10

LWN 480.01-E

d0 = Actual orice diameter A 0 = Actual orice area

Hmax. a A b B s C 600 x 150 1D2 105 130 105 130 124 162 124 162 114 114 152 152 30 14 1E2 30 14 1 1/2 F 2 35 14 1 1/2 G 3 35 14 600 x 150 2H3 154 184 184 238 184 238 156 238 162 110 181 140 181 140 162 140 56 14 3J4 49 18 3K4 49 18 49 18 600 x 150 4L6 179 278 178 278 197 278 225 370 240 370 240 470 203 160 203 160 222 160 254 210 241 210 267 150 57 18 4M6 56 18 4N6 72 18 4P6 62 18 6Q8 68 18 6 R 10 68 18 1426 460 1426 25 1120 346 1200 25 1079 306 1138 25 225 370 254 210 871 280 904 25 197 278 222 160 852 260 885 25 197 278 222 160 853 262 886 25 197 278 222 160 786 234 758 206 824 25 796 25 900 x 150 4L6 72 18 4M6 72 18 4N6 72 18 4P6 62 18 1079 306 871 280 871 280 871 280 198 278 216 160 786 234 824 25 184 238 181 140 691 202 717 16 154 184 162 110 536 148 574 16 124 162 165 536 148 561 16 440 132 465 16 440 132 465 16 Hmax. Dwith bellows

Hmax. a A b B s C 900 x 300 1 1/2 D 2 Please see 1 D2 1500 x 300 1 1/2 E 2 Please see 1 1/2 E 2 1500 x 300 1 1/2 F 3 Please see 1 1/2 F 3 1500 x 300 1 1/2 G 3 44 14 900 x 150 2H3 56 14 3J4 65 18 3K6 67 18 880 288 880 25 197 278 216 160 786 234 824 25 184 238 181 140 691 202 717 16 154 184 162 110 560 174 573 16 156 184 172 110 124 162 165 105 162 140 1/ 2

Hmax. a A b B s C 1500 x 300 1 1/2 D 2 105 162 140 44 14 1 1/2 E 2 44 14 1 1/2 F 3 44 14 2G3 68 14 2H3 56 14 3J4 65 18 3K6 65 18 879 287 879 25 786 234 824 25 691 202 717 16 688 198 705 16 156 184 172 110 560 174 560 16 140 162 178 517 129 542 16 140 162 178 517 129 542 16 140 162 178 Hmax. Dwith bellows

Hmax. a A b B s C 2500 x 300 1 1/2 D 3 57 14 1 1/2 E 3 57 14 1 1/2 F 3 57 14 2G3 68 14 688 198 705 16 576 189 576 16 576 189 576 16 576 189 576 16 Hmax. Dwith bellows

Hmax. D

with bellows

E

E

E

E

1500 x 300

1500 x 150 4L6 904 25 904 25 904 25 1138 25 197 278 222 160 72 18 871 280 904 25

Support brackets

Conventional design

Balanced bellows design

LWN 480.01-E

01/11

Type 526

Type 526Dimensions

Type 526

US UnitsHmax. Safety valve dimensions [inch] Support brackets [inch] Flange rating class Valve sized0 [inch] 0,552 A0 [inch2] 0,239

Hmax. a A b B s C 300L x 150 1D2 Please see 1 D 2 300 x 150 1E2 Please see 1 E 2 300 x 150 1 4 3 /4 4 3 /4 1/ 2

Hmax. a A b B s C 300 x 150 1D2 4 1/8 51/ 8

a A

b B

s C

Hmax. D

with bellows

Hmax. D

with bellows

Hmax. D

with bellows

E

E

E

150 x 150 1D2 4 1/8 51/ 8

D E F G

4 1/2 4 1/2 4 3/4 4 3/4 1

1 3/16 17 5/16 18 5/16 9/ 16

4 1/2 4 1/2 6 6 1

1 3/16 17 5/16 18 5/16 9/16 5 7/32 1E25/ 8

5

7/

32

5/

8

1E2d0 [inch] 0,552 A0 [inch2] 0,239 d0 [inch] 0,709 A0 [inch2] 0,394 d0 [inch] 0,886 A0 [inch2] 0,616

4 1/8 5 1/8 4 7/8 6 3/8 4 7/8 6 3/8

1 3/16 17 5/16 18 5/16 9/16 5 7/321/ 2 5/ 8

4 1/8 5 1/8

1 3/16 17 5/16 18 5/16 9/16 5 7/321/ 2 5/ 8

F25/

F25/

F25/ 8

1 1/4 21 3/32 22 3/32 4 7/8 9/16 5 27/32 1 1 /2 G 3 1 1/4 21 3/32 22 19/32 4 7/8 9/16 5 27/32 150 x 150 1 1/2 H 35/ 8 8

1 1/4 21 3/32 22 3/32 4 7/8 9/16 5 27/32 1 1/2 G 3 1 1/4 21 3/32 22 19/32 4 7/8 9/16 5 27/325/ 8 8

1 13/32 21 3/32 22 3/32 14 5 27/32 1 1 /2 G 3 1 13/32 21 3/32 22 19/32 9/16 5 27/32 300 x 150 2H35/ 8

6 3/8

6 3/8

6 3/8

6 3/8

Flange rating class Valve sized0 [inch] A0 [inch2] d0 [inch] A0 [inch2] WCB, LCB, d0 [inch] CF8M (WC6) A0 [inch2] WC6 1,11 0,98

300L x 150 1 1/2 H 311/ 32

H J

5

1/

8

4

7/

8

1

1/

2

21

22 27/5/ 8

32

5

1/

8

4

7/

8

1 1/2 21 11/32 22 27/32 5 1/8 9/16 6 3/32 2J35/ 8

4 7/8 1 11/16 26 7/32 27 1/45/ 8

6 3/8 5 3/8

9/16 6 3/32 2J3

6 3/8

7 1/4 4 11/32 9/16 6 31/32 2J3

1,42 1,58

4 7/8 1 15/16 26 1/2 28 7/16 5 3/85/ 8

4 7/8 1 15/16 26 1/2 28 7/16 7 1/45/ 8

7 1/8 1 15/16 30 15/16 32 7/16 5 1/2 23/32 9 7/32 3K431/ 32

7 1/4 4 11/32 9/16 7 1/4 3K4 6 1/8 9 3/8

7 1/4 4 11/32 9/16 7 1/4 3K4 Please see 3 K 4 300 x 150

9 3/8 6 1/8 9 3/8

1,69 2,25

6 3/8 1 15/16 29 27/32 23 11/32 5 1/2 23/32 8 3/3231/ 32

6 3/8 1 15/16 29 27/32 31 11/32 5 1/2 23/32 8 3/3231/ 32

K

Flange rating class Valve sized0 [inch] A0 [inch2] d0 [inch] A0 [inch2] 2,11 3,48

150 x 150 3L4 6 1/8 9 3/8 715/ 16

300L x 150 3L4 6 1/2 1 15/16 29 27/32 31 11/12 7 1/6 5 1/2 23/32 8 3/32 4M631/ 31/ 32 31/

300 x 150 4L6 7 1/8 1 15/16 33 19/32 34 7/831/ 32

L M N P Q R T

6 1/2 1 15/16 23 27/32 31 11/12 6 1/8 5 1/2 23/32 8 3/32 4M6 7 1/432

9 3/8

10 15/16 6 5/16 23/32 10 5/16 4M6 7 7 1/4

2,37 4,43 10 2,60

1 7/8 33 17/32 34 27/3232

6 5/16 23/32 10 1/4 4N6 8 1/4

Please see 4 M 6 300 x 150 4N6 Please see 4 N 6 300 x 150 4P6 9 65/ 16

1 7/8 33 17/32 34 27/3231/ 32

10 15/16 6 5/16 23/32 10 1/4 4N6 7 3/4 8 1/4

d0 [inch] A0 [inch2] d0 [inch] A0 [inch2]

7 3/415/ 16

1 7/8 34 9/32 35 19/32 1131/ 32

1 7/8 34 9/32 35 19/32 1131/ 32

5,30 10 3,15

6 5/16 23/32 4P6 9 65/ 16

10 15/16 6 5/16 23/32 4P6 10 89/ 32

7 1/815/ 16

1 7/8 33 31/32 34 31/32 7 1/8 23/ 32

1 7/8 33 31/32 34 31/32 8 7/8 23/ 32

2 7/16 42 1/2 44 13/16 23/32 12 1/16 6Q831/ 32

7,79 10

10

5/

16

31/

32

10

15/

16

10

5/

16

31/

32

14

9/

16

6Q8d0 [inch] 4,15 9 7/16

6Q8 13 5/831/

9 1/2 2 11/16 44 1/8 47 1/423/ 32 32

A0 [inch2] 13,55 14 9/16 8 9/32 d0 [inch] 4,98 9 7/16

Please see 6 Q 8 300 x 150 6R8

9 7/16

9 1/2 2 11/16 44 1/8 47 1/431/ 32

14 9/16 8 9/32 23/32 13 5/8 6 R 1031/

6R8 9 1/2 2 11/16 44 1/8 47 1/4 9 7/1623/ 32

9 1/2 2 11/16 41 5/8 44 3/4 9 7/16 10 1/2 2 11/16 56 1/8 56 1/832

A0 [inch2] 19,84 14 9/16 8 9/32 d0 [inch] 6,36 10 7/8

13 5/8

31/

32

14 9/16 8 9/32 23/32 13 5/8 8 T 10 Please see 8 T 10 300 x 150

18 1/2 5 29/32 23/32 18 1/8 8 T 10 10 7/8 11

31/ 32

8 T 10 1129/ 32

2 7/16 57 9/16 57 9/16 23/32 19 9/1631/ 32

2 7/16 57 9/16 57 9/1631/ 32

A0 [inch2] 31,75 18 1/2 5

18 1/2 5 29/32 23/32 19 9/16

01/12

LWN 480.01-E

d0 = Actual orice diameter A 0 = Actual orice area

Hmax. a A b B s C 600 x 150 1D2 4 51/ 8 1/ 8

Hmax. a A b B s C 900 x 300 1 1/2 D 2 Hmax. Dwith bellows

Hmax. a A b B s C 1500 x 300 1 1/2 D 2 4 61/ 8 3/ 8

Hmax. a A b B s C 2500 x 300 1 1/2 D 3 Hmax. Dwith bellows

Hmax. D

with bellows

Hmax. D

with bellows

E

E

E

E

4

1/

2

1

3/

16

17 5

5/

16

18

5/ 8

16

4 1/2 6 6

9/ 16

7/ 32

5/

Please see 1 D2 1500 x 300 11/ 2

1/ 2

5

1/ 2

1 11/

3/ 4 9/ 16

20 11/ 5 2

32

21 11/5/ 8

32

4 6

1/ 3/

2 8

7 7 7 1 1

2 1/4 22 11/16 22 11/16 9/16 7 15/321/ 2 E 2 1/4 9/ 5/ 8

5 1/2 6 1/2

3/ 32

1E2 4 1/8 51/ 8

E2 4 1/8 63/ 8

1 3/16 17 5/16 18 5/16 9/ 16

5

7/ 32

5/

8

Please see 1 1/2 E 2 1500 x 300 11/ 2

2 E 1 3/4 9/

3 22 11/16 22 11/16 7 15/325/ 8

20 11/32 21 11/32 5 1/2 53/ 32 5/ 8

11/

16

6

3/

8

1/

16

4 7/8 6 3/8 4 7/8 6 3/8

1 1/2 F 2 1 13/32 21 3/32 9/16 5 27/32 1 1/2 G 3

F3 4 7/8 6 3/8

22 3/325/ 8

Please see 1 1/2 F 3 1500 x 300 1 1/2 G 3 6 1/2

2 F 1 3/4

3 22 1/16 22 1/165/ 8

5 1 /2 6 3 /8 6 1 /8

2 F 2 1/4

3 22 11/16 22 11/165/ 8

9/16 6 27/32 2G3

9/16 7 15/32 2G3

1 13/32 21 3/32 22 19/32 4 7/8 9/16 5 27/32 600 x 150 2H35/ 8

1 3/4 22 1/16 22 9/16 6 1/8 14 6 27/32 900 x 150 2H35/ 8

6 3/4 2 11/16 27 3/32 27 3/45/ 8

6 3/4 2 11/16 27 3/32 27 3/45/ 8

6 3/8

7 1/4 4 11/32 9/16 7 13/16 1500 x 300 2H3 6 3/8 411/ 32

7 1/4 4 11/32 9/16 7 13/16

6 1/16 71/ 4

6 3/8 411/ 32

2 3/16 27 7/32 28 7/32 6 1/16 9/ 16

6 3/8 411/ 32

2 3/16 27 7/32 28 7/32 6 1/16 9/ 16

2 3/16 27 7/32 28 7/32 9/16 7 15/16 3J45/ 8

7

15/

16

5/

8

7

1/

4

7

15/

16

5/

8

7

1/

4

3J4 7 1/4 93/ 8

3J4 7 1/8 51/ 2

7 1/8 1 15/16 30 15/16 32 7/16 7 1/4 51/ 2

2 9/16 30 15/16 32 7/16 7 1/4 23/ 32

7 1/8 51/ 2

2 3/16 30 15/16 32 7/16 23/ 32

23/ 32

9

7/ 32

31/

32

9

3/

8

9

7/

32

31/

32

9

3/

8

9 7/32

31/

32

3K4 7 1/4 9 3/8 6 1/8 9 3/8 7 1/8 1 15/16 30 15/16 32 7/16 7 13/16 8 1/2 5 1/2 5 1/2 23/ 32

3K6 2 9/16 34 21/3234 21/32 7 3/423/ 11 11/ 31/ 32 32 32

3K6 8 1/2 2 9/16 34 19/32 34 19/3223/ 32 10 15/ 16 31/ 32

9 7/32 8 3/32

31/

32

10 15/16 6 5/16

10 15/16 6 5/16

6 3/8 1 15/16 29 27/32 31 11/3223/ 32 31/ 32

600 x 150 4L6 7 1/16 1015/ 16

900 x 150 4L6 7 3/4 10 15/16

1500 x 150 4L6 8 3/4 65/ 16 2/

8 65/ 16

2 1/4 33 19/32 34 7/8 23/ 10 15/ 31/ 32 16 32

8 3/4 65/ 16

2 3/4 34 9/32 35 19/32 7 3/4 23/ 32

11

31/

32

10 15/

16

34 23/

34 9/32 35 19/3232

11

31/

32

4M6 7 8 2 3/16 33 17/3234 27/32 7 3/423/ 32

4M6 8 3/4 2 3/4 34 9/32 35 19/3223/ 32

10 15/16 6 5/16 7 3/4 8 3/4

10 1/4

31/

32

10 15/16 6 5/16 8 3/4

11

31/

32

4N6 2 3/4 34 9/32 35 19/32 7 3/423/ 32

4N6 2 3/4 34 9/32 35 19/3223/ 32

10 15/16 6 5/16 8 7/8 149/ 16

11

31/

32

10 15/16 6 5/16 10 89/ 32

11

31/

32

4P6 10 89/ 32

4P6 2 7/16 42 1/2 44 13/16 23/ 32

2 7/16 42 1/2 44 13/16 8 7/8 23/ 32

12

1/

16

31/

32

14

9/

16

12 1/16

31/

32

6Q8 9 7/16 149/ 16

9 1/2 2 11/16 44 1/8 47 1/4 8 9/32 23/ 32

13 5/8

31/

32

6 R 10 9 7/16 10 1/2 2 11/16 56 1/8 56 1/8 18 1/2 5 29/32 23/ 32

18 1/8

31/

32

Support brackets Conventional design Balanced bellows design

LWN 480.01-E

01/13

Type 526

Type 526WeightsMetric UnitsType 526Bonnet Lifting device Flange class Valve size Weight [kg] with bellows [kg] Weight [kg] with bellows [kg] 150 x 150 1D2 17,3 18,4 1E2 17,3 18,4 1 1/2 F 2 30,6 33,1 11/ 2

all all

300L x 150 1D2Use 300 lbs dimensions for this size

300 x 150 1D2 17,3 18,4 1E2 17,3 18,4 1 1 /2 F 2 32,5 35 11/ 2

600 x 150 1D2 17,3 18,4 1E2 17,3 18,4 1 1/2 F 2 32,5 35 11/ 2

900 x 300 1 1 /2 D 2Use 1500 lbs dimensions for this size

1500 x 300 1 1/2 D 2 31,1 33,1 1 1/2 E 2 31,1 33,1 1 1/2 F 3 36,3 38,6 2G3 69,9 72,5 1500 x 300 2H3 62,2 65,3 3J4 100,2 105,7 3K6 127,5 134,1 1500 x 150 4L6 127,5 134,1

2500 x 300 1 1/2 D 3 41,8 44,6 1 1/2 E 3 41,8 44,6 1 1/2 F 3 41,8 44,6 2G3 69,9 72,5

D E

1E2Use 300 lbs dimensions for this size

1 1 /2 E 2Use 1500 lbs dimensions for this size

1 1/2 F 2 30,6 33,1 11/ 2

1 1 /2 F 3Use 1500 lbs dimensions for this size

F

Weight [kg] with bellows [kg]

G3

G3

G3

G3

1

1/

2

G3



30,6 33,1 150 x 150 1 1/2 H 3

30,6 33,1 300L x 150 1 1/2 H 3 30,6 33,1 2J3 44,6 48,4 3K4Use 300 lbs dimensions for this size

32,5 35 300 x 150 2H3 44,6 48,4 3J4 77,7 83,2 3K4 70,1 75,7 300 x 150 4L6 112,2 118,8 4M6 112,1 118,7 4N6 128,6 135,2 4P6 164 172 6Q8 221 230 6 R 10 277 288 8 T 10 287 298

32,5 35 600 x 150 2H3 62,2 65,3 3J4 77,7 83,2 3K4Other WC6

36,3 38,6 900 x 150 2H3 62,2 65,3 3J4 100,2 105,7 3K6 127,5 134,1 900 x 150 4L6 134,1 140,7 4M6 134,1 140,7 4N6 134,1 140,7 4P6 164 172

H J

Weight [kg] with bellows [kg] Weight [kg] with bellows [kg]

30,6 33,1 2J3 44,6 48,4 3K4



70,1 75,7 150 x 150 3L4

77,7 83,2

70,1 75,7

300L x 150 3L4 70,1 75,7 4M6Use 300 lbs dimensions for this size

600 x 150 4L6 122 128,6 4M6 122 128,6 4N6 134,1 140,7 4P6 164 172 6Q8 221 230 6 R 10 277 288

L M

Weight [kg] with bellows [kg] Weight [kg] with bellows [kg]

70,1 75,7 4M6 112,1 118,7 4N6 128,6 135,2 4P6 107,7 114,8 6Q8 221 230 6R8 221 230 8 T 10 287 298

4N6Use 300 lbs dimensions for this size

N


4P6 107,7 114,8 6Q8Use 300 lbs dimensions for this size

P


Q


6R8 221 230 8 T 10Use 300 lbs dimensions for this size

R


T


01/14

LWN 480.01-E

Type 526WeightsUS UnitsBonnet Lifting device Flange class Valve size Weight [lbs] with bellows [lbs] Weight [lbs] with bellows [lbs] 150 x 150 1D2 38,1 40,6 1E2 38,1 40,6 1 1/2 F 2 67,5 73 1 1/2 G 3 67,5 73 150 x 150 1 1/2 H 3 Weight [lbs] with bellows [lbs] Weight [lbs] with bellows [lbs] 67,5 73 2J3 98,3 106,7 3K4 300L x 150 1D2Use 300 lbs dimensions for this size all all

300 x 150 1D2 38,1 40,6 1E2 38,1 40,6 1 1 /2 F 2 71,7 77,2 1 1 /2 G 3 71,7 77,2 300 x 150 2H3 98,3 106,7 3J4 171,3 183,5 3K4 154,6 166,9 300 x 150 4L6 247,4 262 4M6 247,2 261,7 4N6 283,6 298,1 4P6 361,6 379,2 6Q8 487,3 507,2 6 R 10 610,8 635 8 T 10 632,8 657,1

600 x 150 1D2 38,1 40,6 1E2 38,1 40,6 1 1/2 F 2 71,7 77,2 1 1/2 G 3 71,7 77,2 600 x 150 2H3 137,2 144 3J4 171,3 183,5 3K4Other WC6

900 x 300 1 1/2 D 2Use 1500 lbs dimensions for this size

1500 x 300 1 1/2 D 2 68,6 73 1 1/2 E 2 68,6 73 1 1/2 F 3 80 85,1 2G3 154,1 159,9 1500 x 300 2H3 137,2 144 3J4 220,9 233,1 3K6 281,1 295,7 1500 x 150 4L6 281,1 295,7

2500 x 300 1 1/2 D 3 92,2 98,3 1 1/2 E 3 92,2 98,3 1 1/2 F 3 92,2 98,3 2G3 154,1 159,9

D E

1E2Use 300 lbs dimensions for this size

1 1/2 E 2Use 1500 lbs dimensions for this size

1 1/2 F 2 67,5 73 1 1/2 G 3 67,5 73 300L x 150 1 1/2 H 3 67,5 73 2J3 98,3 106,7 3K4Use 300 lbs dimensions for this size

1 1/2 F 3Use 1500 lbs dimensions for this size

F

Weight [lbs] with bellows [lbs]

1 1 /2 G 3 80 85 900 x 150 2H3 137,2 144 3J4 220,9 233,1 3K6 281,1 295,7 900 x 150 4L6 295,7 310,2 4M6 295,7 310,2 4N6 295,7 310,2 4P6 361,6 379,2



H J



154,6 166,9 150 x 150 3L4

171,3 183,5

154,6 166,9

300L x 150 3L4 154,6 166,9 4M6Use 300 lbs dimensions for this size

600 x 150 4L6 269 283,6 4M6 269 283,6 4N6 295,7 310,2 4P6 361,6 379,2 6Q8 487,3 507,2 6 R 10 610,8 635

L M

Weight [lbs] with bellows [lbs] Weight [lbs] with bellows [lbs]

154,6 166,9 4M6 247,2 261,7 4N6 283,6 298,1 4P6 237,5 253,1 6Q8 487,3 507,2 6R8 487,3 507,2 8 T 10 632,8 657,1

4N6Use 300 lbs dimensions for this size

N


4P6 237,5 253,1 6Q8Use 300 lbs dimensions for this size

P


Q


6R8 487,3 507,2 8 T 10Use 300 lbs dimensions for this size

R


T


LWN 480.01-E

01/15

Type 526


Orifice D300 x 150 5262.002X 5267.006X 600 x 150 5262.003X 5267.007X 900 x 300 1500 x 300 5262.004X 5267.008X 2500 x 300 5262.005X 5267.009X

p [bar]0 1000 25 50 75 100 150 200 250 300 350 400

WC6

D

900 800 700 600 500

400

300

WCB

200

T [F]

400 300 100 200 100 0 0 500 1000 1500 2000 3000 4000 5000 6000 0

p [psig]150 x 150 5264.010X 300L x 150 300 x 150 5264.011X 600 x 150 5264.012X 900 x 300 1500 x 300 5264.013X 2500 x 300 5264.014X

CF8M

p [bar]0 1000 900 800 700 600 500 200 400 300 400 25 50 75 100 150 200 250 300 350 400

CF8M

300 100

T [F]

200 100 0 -100 -200 -300 -400 0 500 1000 1500 2000 3000 4000 5000 6000 -200 -100 0

p [psig]01/16 LWN 480.01-E

T [C]

T [C]

Type 526Article numbersValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB Art.-No. Art.-No. Art.-No. Art.-No. 5262.001 5264.010 5263.500 1D2 150 x 150 14 154

Orifice D

Article numbers, dimensions and weights

1D2 300L x 150 14 154

1D2 300 x 150 14 154 5262.002

1D2 600 x 150 14 154 5262.003 5264.012 5267.007 5263.502

1 1/2 D 2 900 x 300 14 154

1 1 /2 D 2 1500 x 300 14 154 5262.004

1 1 /2 D 3 2500 x 300 14 154 5262.005 5264.014 5267.009 5263.504

Use 1 D 2 300 x 150

5264.011 5267.006 5263.501

Use 1 1/2 D 2 1500 x 300

5264.013 5267.008 5263.503

D

) Please add code for the required cap or lifting device. See below.

Dimensions and weightsMetric Units Weight [kg] Center to face [mm] 17,3 with bellows Inlet a Outlet b s Height (H4) [mm] Support brackets [mm] Standard H max. Bellows H max. A B C D E US Units Weight [lbs] Center to face [inch] 38,1 with bellows Inlet a Outlet b s Height (H4) [inch] Support brackets [inch] Standard H max. Bellows H max. A B C D E 40,5 4 1/8 4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

17,3 18,4 105 114Use 1 D 2 300 x 150

17,3 18,4 105 114 30 440 465 130 14 132 16Use 1 2 D 2 1500 x 3001/

31,1 33,1 105 140 44 517 542 162 14 129 16

41,8 44,6 140 178 57 576 576 162 14 189 16

18,4 105 114 30 440 465 130 14 132 16

30 440 465 130 14 132 16

38,1 40,5 4 1/8Use 1 D 2 300 x 150

38,1 40,5 4 1/8 4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

68,6 73 4 1/8 5 1/2Use 1 1/2 D 2 1500 x 300

92,2 98,4 5 1/2 7 2 1/4 22 11/16 22 11/16 6 3/8 9/16 7 15/325/ 8

4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

1 3/4 20 11/32 21 11/32 6 3/8 9/16 5 7/325/ 8

Code for lifting deviceLifting device Bonnet WCB 1.0619, WC6 1.7357, LCB CF8M 1.4408 H2 H3 H4 closed closed closed 2 2 3 4 4 H3 open 5

Support brackets LWN 480.01-E

Conventional design

Balanced bellows design 01/17

Type 526Pressure temperature ratings

Orifice D

Metric UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material: WCB 1.0619 Temperature range Maximum set pressure -29 to 38 C 39 to 232 C 233 to 427 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -268 to -60 C -59 to -29 C -28 to 38 C 39 to 232 C 233 to 427 C 428 to 538 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -46 to 38 C 39 to 200 C 201 to 343 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 18,4 13,8 8,4 19,7 15,9Use 1 D 2 300 x 150

1D2 150 x 150 14 154

1D2 300L x 150 14 154

1D2 300 x 150 14 154

1D2 600 x 150 14 154

1 1/2 D 2 900 x 300 14 154

1 1 /2 D 2 1500 x 300 14 154

1 1/2 D 3 2500 x 300 14 154

D

Pressure range p [bar] S/G/L 19,7 12,8 5,5 19,7 15,9Use 1 D 2 300 x 150

51,0 42,4 28,3 19,7 15,9

102,1 85,2 56,9 19,7 15,9Use 1 2 D 2 1500 x 3001/

255,5 212,4 142,1 41,4 34,5

413,8 354,1 236,6 51,0 34,5

Pressure range p [bar] S/G/L 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9Use 1 D 2 300 x 150

49,7 49,7 49,7 34,1 29,0 24,1 19,0 15,9

99,3 99,3 99,3 68,3 58,3 48,3 19,0 15,9Use 1 2 D 2 1500 x 3001/

248,3 248,3 248,3 171,0 145,5 120,7 41,4 34,5

275,9 413,8 413,8 284,8 242,8 201,0 49,7 34,5

Pressure range p [bar] S/G/L 35,2 14,8 19,7 15,9 70,0 29,7 19,7 15,9Use 1 1/2 D 2 1500 x 300

233 to 427 C 428 to 538 C

175,2 74,5 41,4 34,5

291,7 124,1 51,0 34,5

Pressure range p [bar] S/G/L 48,0 42,5 36,4 19,7 15,9 96,0 85,1 72,8 19,7 15,9Use 1 1/2 D 2 1500 x 300

240,1 212,7 182,0 41,4 34,5

400,1 354,4 303,3 51,0 34,5

Remark: SA 352 Gr. LCB is not listed in the API 526. Pressure-Temperature Rating acc. to ASME B16.34 Table 2-1.3 The stated Pressure-Temperature Rating are taken from ASME B16.34 Table 2-1.3 Due to the extended material test certicate the LESER LCB can be applied as LCC, WCB, WCC and 1.0619 with the respective pressure-temperature range as well.

01/18

LWN 480.01-E


Orifice D

US UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [inch] Actual Orice area A0 [inch2] Body material: WCB 1.0619 Temperature range Maximum set pressure -20 to 100 F 101 to 450 F 451 to 800 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -450 to -76 F -75 to -21 F -20 to 100 F 101 to 450 F 451 to 800 F 801 to 1000 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -50 to 100 F 101 to 400 F 401 to 650 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 265 200 125 285 230Use 1 D 2 300 x 150

1D2 150 x 150 0,551 0,239

1D2 300L x 150 0,551 0,239

1D2 300 x 150 0,551 0,239

1D2 600 x 150 0,551 0,239

1 1/2 D 2 900 x 300 0,551 0,239

1 1 /2 D 2 1500 x 300 0,551 0,239

1 1 /2 D 3 2500 x 300 0,551 0,239

D

Pressure range p [psig] S/G/L 285 185 80 285 230Use 1 D 2 300 x 150

740 615 410 285 230

1480 1235 825 285 230Use 1 2 D 2 1500 x 3001/

3705 3080 2060 600 500

6000 5135 3430 740 500

Pressure range p [psig] S/G/L 275 275 275 180 80 20 275 230Use 1 D 2 300 x 150

720 720 720 495 420 350 275 230

1440 1440 1440 990 845 700 275 230Use 1 2 D 2 1500 x 3001/

3600 3600 3600 2480 2110 1750 600 500

4000 6000 6000 4130 3520 2915 720 500

Pressure range p [psig] S/G/L 510 215 285 230 1015 430 285 230Use 1 1/2 D 2 1500 x 300

451 to 800 F 801 to 1000 F

2540 1080 600 500

4230 1800 740 500

Pressure range p [psig] S/G/L 695 615 535 285 230 1395 1230 1065 285 230Use 1 1/2 D 2 1500 x 300

3480 3075 2665 600 500

5805 5125 4440 740 500


LWN 480.01-E

01/19


Orifice E300 x 150 5262.016X 5267.020X 600 x 150 5262.017X 5267.021X 900 x 300 1500 x 300 5262.018X 5267.022X 2500 x 300 5262.019X 5267.023X

p [bar]0 1000 25 50 75 100 150 200 250 300 350 400

WC6

900 800

400

E

700 600 500

300

WCB

200

T [F]

400 300 100 200 100 0 0 500 1000 1500 2000 3000 4000 5000 6000 0

p [psig]150 x 150 5264.024X 300L x 150 300 x 150 5264.025X 600 x 150 5264.026X 900 x 300 1500 x 300 5264.027X 2500 x 300 5264.028X

CF8M

0 1000 900 800 700 600 500

25

50

75

p [bar]

100

150

200

250

300

350

400

400

300

200 400

CF8M

300 100

T [F]

200 100 0 -100 -200 -300 -400 0 500 1000 1500 2000 3000 4000 5000 6000 -200 -100 0

p [psig]01/20 LWN 480.01-E

T [C]

T [C]

Type 526Article numbersValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB Art.-No. Art.-No. Art.-No. Art.-No. 5262.015 5264.024 5263.505 1E2 150 x 150 14 154

Orifice E


1E2 300L x 150 14 154

1E2 300 x 150 14 154 5262.016

1E2 600 x 150 14 154 5262.017 5264.026 5267.021 5263.507

1 1/2 E 2 900 x 300 14 154

1 1/2 E 2 1500 x 300 14 154 5262.018

1 1 /2 E 3 2500 x 300 14 154 5262.019 5264.028 5267.023 5263.509

Use 1 E 2 300 x 150

5264.025 5267.020 5263.506

Use 1 1/2 E 2 1500 x 300

5264.027 5267.022 5263.508


EDimensions and weightsMetric Units Weight [kg] Center to face [mm] 17,3 with bellows Inlet a Outlet b s Height (H4) [mm] Support brackets [mm] Standard H max. Bellows H max. A B C D E US Units Weight [lbs] Center to face [inch] 38,1 with bellows Inlet a Outlet b s Height (H4) [inch] Support brackets [inch] Standard H max. Bellows H max. A B C D E 40,5 4 1/8 4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

17,3 18,4 105 114Use 1 E 2 300 x 150

17,3 18,4 105 114 30 440 465 130 14 132 16Use 1 E2 1500 x 3001/ 2

31,1 33,1 105 140 44 517 542 162 14 129 16

41,8 44,6 140 178 57 576 576 162 14 189 16

18,4 105 114 30 440 465 130 14 132 16

30 440 465 130 14 132 16

38,1 40,5 4 1/8Use 1 E 2 300 x 150

38,1 40,5 4 1/8 4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

68,6 73 4 1/8 5 1/2Use 1 1/2 E 2 1500 x 300

92,2 98,4 5 1/2 7 2 1/4 22 11/16 22 11/16 6 3/8 9/16 7 15/325/ 8

4 1/2 1 3/16 17 5/16 18 5/16 5 1/8 9/16 5 7/325/ 8

1 3/4 20 11/32 21 11/32 6 3/8 9/16 5 7/325/ 8



Conventional design



Orifice E

Metric UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material: WCB 1.0619 1E2 150 x 150 14 154 1E2 300L x 150 14 154 1E2 300 x 150 14 154 1E2 600 x 150 14 154 1 1/2 E 2 900 x 300 14 154 1 1/2 E 2 1500 x 300 14 154 1 1/2 E 3 2500 x 300 14 154

EMaximum set pressure

Temperature range -29 to 38 C 39 to 232 C 233 to 427 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -268 to -60 C -59 to -29 C -28 to 38 C 39 to 232 C 233 to 427 C 428 to 538 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -46 to 38 C 39 to 200 C 201 to 343 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 18,4 13,8 8,4 19,7 15,9Use 1 E 2 300 x 150

Pressure range p [bar] S/G/L 19,7 12,8 5,5 19,7 15,9Use 1 E 2 300 x 150

51,0 42,4 28,3 19,7 15,9

102,1 85,2 56,9 19,7 15,9Use 1 2 E 2 1500 x 3001/

255,5 212,4 142,1 41,4 34,5

413,8 354,1 236,6 51,0 34,5

Pressure range p [bar] S/G/L 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9Use 1 E 2 300 x 150

49,7 49,7 49,7 34,1 29,0 24,1 19,0 15,9

99,3 99,3 99,3 67,2 58,3 48,3 19,0 15,9Use 1 2 E 2 1500 x 3001/

248,3 248,3 248,3 171,0 145,5 120,7 41,4 34,5

275,9 413,8 413,8 284,8 242,8 201,0 49,7 34,5

Pressure range p [bar] S/G/L 35,2 14,8 19,7 15,9 70,0 29,7 19,7 15,9Use 1 1/2 E 2 1500 x 300

233 to 427 C 428 to 538 C

175,2 74,5 41,4 34,5

291,7 124,1 51,0 34,5

Pressure range p [bar] S/G/L 48,0 42,5 36,4 19,7 15,9 96,0 85,1 72,8 19,7 15,9Use 1 1/2 E 2 1500 x 300

240,1 212,7 182,0 41,4 34,5

400,1 354,4 303,3 51,0 34,5


01/22

LWN 480.01-E


Orifice E

US UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [inch] Actual Orice area A0 [inch2] Body material: WCB 1.0619 Temperature range Maximum set pressure -20 to 100 F 101 to 450 F 451 to 800 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -450 to -76 F -75 to -21 F -20 to 100 F 101 to 450 F 451 to 800 F 801 to 1000 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -50 to 100 F 101 to 400 F 401 to 650 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 265 200 125 285 230Use 1 E 2 300 x 150

1E2 150 x 150 0,551 0,239

1E2 300L x 150 0,551 0,239

1E2 300 x 150 0,551 0,239

1E2 600 x 150 0,551 0,239

1 1/2 E 2 900 x 300 0,551 0,239

1 1/2 E 2 1500 x 300 0,551 0,239

1 1 /2 E 3 2500 x 300 0,551 0,239

Pressure range p [psig] S/G/L 285 185 80 285 230Use 1 E 2 300 x 150

E3705 3080 2060 600 500 6000 5135 3430 740 5001/ 2

740 615 410 285 230

1480 1235 825 285 230Use 1 E2 1500 x 300

Pressure range p [psig] S/G/L 275 275 275 180 80 20 275 230Use 1 E 2 300 x 150

720 720 720 495 420 350 275 230

1440 1440 1440 975 845 700 275 230Use 1 E2 1500 x 3001/ 2

3600 3600 3600 2480 2110 1750 600 500

4000 6000 6000 4130 3520 2915 720 500

Pressure range p [psig] S/G/L 510 215 285 230 1015 430 285 230Use 1 1/2 E 2 1500 x 300

451 to 800 F 801 to 1000 F

2540 1080 600 500

4230 1800 740 500

Pressure range p [psig] S/G/L 695 615 535 285 230 1395 1230 1065 285 230Use 1 1/2 E 2 1500 x 300

3480 3075 2665 600 500

5805 5125 4440 740 500


LWN 480.01-E

01/23

Type 526Selection chart150 x 150 5262.029X 300L x 150 5262.030X WCB WC6

Orifice F300 x 150 5262.031X 5267.035X 600 x 150 5262.032X 5267.036X 900 x 300 1500 x 300 5262.033X 5267.037X 2500 x 300 5262.034X 5267.038X

p [bar]0 1000 25 50 75 100 150 200 250 300 350 400

WC6

900 800 700 600

400

300

WCB

F

500 200

T [F]

400 300 100 200 100 0 0 500 1000 1500 2000 3000 4000 5000 6000 0

p [psig]150 x 150 5264.039X 300L x 150 5264.040X 300 x 150 5264.041X 600 x 150 5264.042X 900 x 300 1500 x 300 5264.043X 2500 x 300 5264.044X

CF8M

p [bar]0 1000 900 800 700 600 500 400 200 300 400 25 50 75 100 150 200 250 300 350 400

CF8M

300 100

T [F]

200 100 0 -100 -200 -300 -400 0 500 1000 1500 2000 3000 4000 5000 6000 -200 -100 0

p [psig]01/24 LWN 480.01-E

T [C]

T [C]

Type 526Article numbersValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB Art.-No. Art.-No. Art.-No. Art.-No. 5262.029 5264.039 5263.510 1 1/2 F 2 150 x 150 18 254

Orifice F


1 1/2 F 2 300L x 150 18 254 5262.030 5264.040 5263.511

1 1/2 F 2 300 x 150 18 254 5262.031 5264.041 5267.035 5263.512

1 1/2 F 2 600 x 150 18 254 5262.032 5264.042 5267.036 5263.513

1 1/2 F 3 900 x 300 18 254

1 1 /2 F 3 1500 x 300 18 254 5262.033

1 1/2 F 3 2500 x 300 18 254 5262.034 5264.044 5267.038 5263.515

Use 1 1/2 F 3 1500 x 300

5264.043 5267.037 5263.514


Dimensions and weightsMetric Units Weight [kg] Center to face [mm] 30,6 with bellows Inlet a Outlet b s Height (H4) [mm] Support brackets [mm] Standard H max. Bellows H max. A B C D E US Units Weight [lbs] Center to face [inch] 67,5 with bellows Inlet a Outlet b s Height (H4) [inch] Support brackets [inch] Standard H max. Bellows H max. A B C D E 73 4 7/8 4 3/4 1 1/4 21 3/32 22 3/32 6 3/8 9/16 5 27/325/ 8

F30,6 33,1 124 121 32 536 561 162 148 16 32,5 35 124 152 35 536 561 162 14 148 16 32,5 35 124 152 35 536 561 162 14 148 16Use 1 2 F 3 1500 x 3001/

36,3 38,6 124 165 44 560 560 162 14 174 16

41,8 44,6 140 178 57 576 576 162 14 189 16

33,1 124 121 32 536 561 162 14 148 16

67,5 73 4 7/8 4 3/4 11/ 4

71,1 77,2 4 7/8 6 1 13/32 21 3/32 22 3/32 6 3/8 9/16 5 27/325/ 8

71,1 77,2 4 7/8 6 1 13/32 21 3/32 22 3/32 6 3/8 9/16 5 27/325/ 8

80 85,1 4 7/8 6 1/2Use 1 1/2 F 3 1500 x 300

92,2 98,4 5 1/2 7 2 1/4 22 11/16 22 11/16 6 3/8 9/16 6 27/325/ 8

1 3/4 22 1/16 22 1/16 6 3/8 9/16 6 27/325/ 8

21 3/32 22 3/32 6 3/8 9/16 5 27/325/ 8



Conventional design



Orifice F

Metric UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material: WCB 1.0619 Temperature range Maximum set pressure -29 to 38 C 39 to 232 C 233 to 427 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -268 to -60 C -59 to -29 C -28 to 38 C 39 to 232 C 233 to 427 C 428 to 538 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -46 to 38 C 39 to 200 C 201 to 343 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 18,4 13,8 8,4 19,7 15,9 18,4 13,8 8,4 19,7 15,9 Pressure range p [bar] S/G/L 48,0 42,5 36,4 19,7 15,9 96,0 85,1 72,8 19,7 15,9Use 1 1/2 F 3 1500 x 300

1 1 /2 F 2 150 x 150 18 254

1 1/2 F 2 300L x 150 18 254

1 1/2 F 2 300 x 150 18 254

1 1/2 F 2 600 x 150 18 254

1 1/2 F 3 900 x 300 18 254

1 1 /2 F 3 1500 x 300 18 254

1 1/2 F 3 2500 x 300 18 254

Pressure range p [bar] S/G/L 19,7 12,8 5,5 19,7 15,9 19,7 19,7 19,7 19,7 15,9 51,0 42,4 28,3 19,7 15,9 102,1 85,2 56,9 19,7 15,9Use 1 2 F 3 1500 x 3001/

255,5 212,4 142,1 51,0 34,5

344,8 344,8 236,6 51,0 34,5

F

Pressure range p [bar] S/G/L 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9 49,7 49,7 49,7 34,1 29,0 24,1 19,0 15,9 99,3 99,3 99,3 67,2 58,3 48,3 19,0 15,9Use 1 2 F 3 1500 x 3001/

151,7 248,3 248,3 171,0 145,5 120,7 41,4 34,5

234,5 344,8 344,8 284,8 242,8 201,0 49,7 34,5

Pressure range p [bar] S/G/L 35,2 14,8 19,7 15,9 70,0 29,7 19,7 15,9Use 1 1/2 F 3 1500 x 300

233 to 427 C 428 to 538 C

175,2 74,5 51,0 34,5

291,7 124,1 51,0 34,5

240,1 212,7 182,0 51,0 34,5

400,1 354,4 303,3 51,0 34,5


01/26

LWN 480.01-E


Orifice F

US UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [inch] Actual Orice area A0 [inch2] Body material: WCB 1.0619 Temperature range Maximum set pressure -20 to 100 F 101 to 450 F 451 to 800 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -450 to -76 F -75 to -21 F -20 to 100 F 101 to 450 F 451 to 800 F 801 to 1000 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -50 to 100 F 101 to 400 F 401 to 650 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 265 200 125 285 230 265 200 125 285 230 Pressure range p [psig] S/G/L 695 615 535 285 230 1395 1230 1065 285 230Use 1 1/2 F 3 1500 x 300

1 1/2 F 2 150 x 150 0,709 0,394

1 1/2 F 2 300L x 150 0,709 0,394

1 1/2 F 2 300 x 150 0,709 0,394

1 1/2 F 2 600 x 150 0,709 0,394

1 1/2 F 3 900 x 300 0,709 0,394

1 1 /2 F 3 1500 x 300 0,709 0,394

1 1/2 F 3 2500 x 300 0,709 0,394

Pressure range p [psig] S/G/L 285 185 80 285 230 285 285 285 285 230 740 615 410 285 230 1480 1235 825 285 230Use 1 2 F 3 1500 x 3001/

3705 3080 2060 740 500

5000 5000 3430 740 500

F

Pressure range p [psig] S/G/L 275 275 275 180 80 20 275 230 275 275 275 180 80 20 275 230 720 720 720 495 420 350 275 230 1440 1440 1440 975 845 700 275 230Use 1 2 F 3 1500 x 3001/

2200 3600 3600 2480 2110 1750 600 500

3400 5000 5000 4130 3520 2915 720 500

Pressure range p [psig] S/G/L 510 215 285 230 1015 430 285 230Use 1 1/2 F 3 1500 x 300

451 to 800 F 801 to 1000 F

2540 1080 740 500

4230 1800 740 500

3480 3075 2665 740 500

5805 5125 4440 740 500


LWN 480.01-E

01/27

Type 526Selection chart150 x 150 5262.045X 300L x 150 5262.046X WCB WC6

Orifice G300 x 150 5262.047X 5267.052X 600 x 150 5262.048X 5267.053X 900 x 300 5262.049X 5267.054X 1500 x 300 5262.050X 5267.055X 2500 x 300 5262.051X 5267.056X

p [bar]0 1000 25 50 75 100 150 200 250

WC6

900 800 700 600 500

400

300

WCB

200

T [F]

400 300 100 200 100 0 0 500 1000 1500 2000 3000 4000 0

G

p [psig]150 x 150 5264.110X 300L x 150 5264.111X 300 x 150 5264.112X 600 x 150 5264.113X 900 x 300 5264.114X 1500 x 300 5264.115X 2500 x 300 5264.116X

CF8M

p [bar]0 1000 900 800 700 600 500 400 200 300 400 25 50 75 100 150 200 250

CF8M

300 100

T [F]

200 100 0 -100 -200 -300 -400 0 500 1000 1500 2000 3000 4000 -200 -100 0

p [psig]01/28 LWN 480.01-E

T [C]

T [C]

Type 526Article numbersValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material WCB 1.0619 CF8M 1.4408 WC6 1.7357 LCB Art.-No. Art.-No. Art.-No. Art.-No. 5262.045 5264.110 5263.516 1 1/2 G 3 150 x 150 22,5 398

Orifice G


1 1 /2 G 3 300L x 150 22,5 398 5262.046 5264.111 5263.517

1 1/2 G 3 300 x 150 22,5 398 5262.047 5264.112 5267.052 5263.518

1 1/2 G 3 600 x 150 22,5 398 5262.048 5264.113 5267.053 5263.519

1 1/2 G 3 900 x 300 22,5 398 5262.049 5264.114 5267.054 5263.520

2G3 1500 x 300 22,5 398 5262.050 5264.115 5267.055 5263.521

2G3 2500 x 300 22,5 398 5262.051 5264.116 5267.056 5263.522


Dimensions and weightsMetric Units Weight [kg] Center to face [mm] 30,6 with bellows Inlet a Outlet b s Height (H4) [mm] Support brackets [mm] Standard H max. Bellows H max. A B C D E US Units Weight [lbs] Center to face [inch] 67,5 with bellows Inlet a Outlet b s Height (H4) [inch] Support brackets [inch] Standard H max. Bellows H max. A B C D E 5 73 4 7/8 4 13/ 1/ 4 4 21 3/32 22 19/32 6 3/8

30,6 33,1 124 121 32 536 574 162 14 148 16

32,5 35 124 152 35 536 574 162 14 148 16

32,5 35 124 152 35 536 574 162 14 148 16

36,3 38,6 124 165 44 560 573 162 14 174 16

69,9 72,5 156 172 68 688 705 184 110 14 198 16

69,9 72,5 156 172 68 688 705 184 110 14 198 16

33,1 124 121 32 536 574 162 14 148 16

G

67,5 73 4 7/8 4 13/ 1/ 4 4 21 3/32 22 19/32 6 3/8

71,7 77,2 4 7/8 6 1 13/32 21 3/32 22 19/32 6 3/8 516 27/ 32 5/ 8 9/

71,7 77,2 4 7/8 632 21 3/32 22 19/32 6 3/8

80 85,1 4 7/8 6 1/2 1 3/4 22 1/16 22 9/16 6 3/8 616 27/ 32 5/ 8 9/

154,1 159,9 6 1/8 6 23/ 4 16 27 3/32 27 3/4 7 1/4 4 11/32 9/16 7 13/16 5/ 8 11/

154,1 159,9 6 1/8 6 3/4 2 11/16 27 3/32 27 3/4 7 1/4 4 11/32 9/16 7 13/165/ 8

1

13/

16 27/ 32 5/ 8 9/

516 27/ 32 5/ 8 9/

9/16 5 27/32 5/ 8



Conventional design



Orifice G

Metric UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [mm] Actual Orice area A0 [mm2] Body material: WCB 1.0619 Temperature range Maximum set pressure -29 to 38 C 39 to 232 C 233 to 427 C Outlet pressure limit Conventional design 19,7 12,8 5,5 19,7 15,9 19,7 19,7 19,7 19,7 15,9 Pressure range p [bar] S/G/L 51,0 42,4 28,3 19,7 15,9 102,1 85,2 56,9 19,7 15,9 153,1 127,2 85,2 51,0 32,4 255,5 212,4 142,1 51,0 32,4 255,5 255,5 236,6 51,0 32,4 1 1 /2 G 3 150 x 150 22,5 398 1 1/2 G 3 300L x 150 22,5 398 1 1/2 G 3 300 x 150 22,5 398 1 1/2 G 3 600 x 150 22,5 398 1 1/2 G 3 900 x 300 22,5 398 2G3 1500 x 300 22,5 398 2G3 2500 x 300 22,5 398

G

Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -268 to -60 C -59 to -29 C -28 to 38 C 39 to 232 C 233 to 427 C 428 to 538 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -46 to 38 C 39 to 200 C 201 to 343 C Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 233 to 427 C 428 to 538 C

Pressure range p [bar] S/G/L 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9 19,0 19,0 19,0 12,4 5,5 1,4 19,0 15,9 49,7 49,7 49,7 34,1 29,0 24,1 19,0 15,9 99,3 99,3 99,3 67,2 58,3 48,3 19,0 15,9 149,0 149,0 149,0 102,4 87,2 72,4 41,4 32,4 169,0 248,3 248,3 171,0 145,5 120,7 41,4 32,4 179,3 248,3 248,3 248,3 242,8 201,0 49,7 32,4

Pressure range p [bar] S/G/L 35,2 14,8 19,7 15,9 70,0 29,7 19,7 15,9 105,2 44,8 51,0 32,4 175,2 74,5 51,0 32,4 255,5 124,1 51,0 32,4

Pressure range p [bar] S/G/L 18,4 13,8 8,4 19,7 15,9 18,4 13,8 8,4 19,7 15,9 48,0 42,5 36,4 19,7 15,9 96,0 85,1 72,8 19,7 15,9 144,1 127,6 109,2 51,0 32,4 240,1 212,7 182,0 51,0 32,4 400,1 354,4 303,3 51,0 32,4


01/30

LWN 480.01-E


Orifice G

US UnitsValve size Flange rating class Inlet x Outlet Actual Orice diameter d0 [inch] Actual Orice area A0 [inch2] Body material: WCB 1.0619 Temperature range Maximum set pressure -20 to 100 F 101 to 450 F 451 to 800 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: CF8M 1.4408 Temperature range Maximum set pressure -450 to -76 F -75 to -21 F -20 to 100 F 101 to 450 F 451 to 800 F 801 to 1000 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: WC6 1.7357 Temperature range Maximum set pressure Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design Body material: LCB Temperature range Maximum set pressure -50 to 100 F 101 to 400 F 401 to 650 F Outlet pressure limit Conventional design Outlet pressure limit Balanced bellows design 265 200 125 285 230 265 200 125 285 230 Pressure range p [psig] S/G/L 695 615 535 285 230 1395 1230 1065 285 230 209

API - Catalog Flanged Safety Relief Valves Series 526

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Transcript of API - Catalog Flanged Safety Relief Valves Series 526