Kst Gaskets
description
Transcript of Kst Gaskets
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Korea Seal Tech.
Gaskets
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Korea Seal Tech.Korea Seal Tech.
NON-METALLIC GASKET 51
TECHNICAL DATA 69
METALLIC GASKET
METALLIC
TYPE OF METALLIC GASKET. 35
ORDERING INFORMATION FOR METALLIC GASKET. 36
METALLIC RING JOINT GASKET 37
METALLIC CORRUGATED GASKET 43
METALLIC SERRATED GASKET 44
METALLIC O-RING 45
JACKETED METAL GASKET 46
35
DIMENSION TABLES
R TYPE RING JOINT GASKET 38(ASME/ANSI,API,JPI,MSS SP-44)
RX TYPE RING JOINT GASKET(ASME /ANSI,API) 40
BX TYPE RING JOINT GASKET(ASME /ANSI,API) 41
METAL JACKETED GASKET FOR ASME /ANSI B 16.5 FLANGES 48
METAL JACKETED GASKET FOR ASME /ANSI B 16.47 49SERIES A AND B FLANGES
NON-METALLIC
TYPE OF NON-METALLIC GASKET 51
ORDERING INFORMATION FOR NON-METALLIC GASKET 52
GRAPHITE SHEET & GASKET 53
PTFE GASKET 56
RUBBER GASKET 57
ASBESTOS, NON-ASBESTOS COMPERSSED JOINT SHEET 60
DESIGN TIPS FOR NON-METALLIC GASKET 61
DIMENSION TABLES
NON-METALLIC FLAT GASKET FOR ASME/ANSI B16.5 62RF,FF FLAGNES (FULL FACE, FLAT RING GASKET)
NON-METALLIC FLAT GASKET FOR ASME/ANSI B16.47 63SERIES A AND B FLAGNE (FLAT RING GASKET)
NON-METALLIC FLAT GASKET FOR JIS 2220 & 2238~2240 64F.F FLANGES (FULL FACE GASKET)
NON-METALLIC FLAT GASKET FOR JIS 2220 & 2238~2240 65F.F ,R.F, M & F, T & G FLANGES (FLAT RING GASKET)
NON-METALLIC FLAT GASKET FOR JPI-7S-15 F.F, 66R.F FLANGES (FULL FACE, FLAT RING GASKET)
NON-METALLIC FLAT GASKET FOR JPI-7S-43 SERIES A 67FLANGES (FULL FACE, FLAT RING GASKET)
NON-METALLIC PTFE COUSHION GASKET FOR 68JIS 2238 & 2242 FLANGES
CONTENTS
GASKET RECOMMENDATIONS
SEMI-METALLIC GASKET
METALLIC GASKET
NON-METALLIC GASKET
WHAT IS A GASKET ? 6
SELECTION TABLE FOR PRESSURE AND 7 MAX. SERVICE TEMPERATURE.
BEFORE INSTALLATION 9
GASKET INSTALLATION PROCEDURE 9
GASKET MATERIAL AND CONTACT FACINGS 10
EFFECTIVE GASKET WIDTH 11
SPIRAL WOUND GASKET
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SEMI-METALLIC
SPIRAL WOUND GASKET 13
TYPE OF SPIRAL WOUND GASKET 14
ORDERING INFORMATION 15
TYPE,SHAPES, SELECTION OF GASKET 16
AVAILABLE GASKET MATERIALS 17
TEMPERATURE LIMITS FOR COMMON METAL 17& FILLER MATERIALS
RECOMMENDABLE THE WIDTH OF INNER 18RING & INSIDE DIAMETER OF GASKET
SPACE AND CLEARANCE FOR GASKET 19
MAXIMUM BORE OF ASME B16.5 FLANGES 19FOR USE WITH SPIRAL WOUND GASKET
DIMENSION TABLE
ASME/ANSI B16.5 & BS1560 FOR TONGUE 20AND GROOVE FLANGES
JIS 2220 & 2238~2240 FOR MALE AND FEMALE, 21TONGUE AND GROOVE FLANGES
ASME/ANSI B16.5 FOR R.F FLANGE 22(API, JPI-7S-15)
ASME/ANSI B16.47 SERIES A FOR R.F FLANGES 24(MSS SP-44, JPI-7S-15)
ASME/ANSI B16. 16.47 SERIES B FOR R.F FLANGES 26(API, JPI-7S-15)
JIS B2220 & 2238~2240 FOR R.F & F.F FLANGES 28
BS1560 FOR R.F FLANGES 30
DIN PN10~PN250 FLANGES 32
FRENCH STANDARD FOR NF-M-87621 33
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SELECTION TABLE FOR PRESSURE AND MAX. SERVICE TEMPERATURE
Steam,Hot water
Water,Brine
Air,Hot airExhaust Gas
AmmoniaHigh pressure GasHydrogen Gas
Oxygen Gas
Cracking GasHigh Temp. Gas
Heat TransferLiquids (Thermal oil)
Petroleum,Hydrocarbon,LPG
210
100
175
60
40
20 ~ 30
210
175
20 ~ 30
10
20
175
60
210
175
10
20
10
210
10
20
10
10
210
175
20 ~ 30
Stainless steel
Soft iron, low carbon steel
Stainless steel
5Cr-0.5Mo Steel
Soft iron, low carbon steel
With Graphite filler (Hoof SUS304)
Copper, Aluminium
Stainless steel.
With flat SUS inserted.
With tanged SUS inserted
Joint Sheet
Oval or Octagonal
With Graphite filler
Joint Sheet
Joint Sheet
With Graphite Tape
Stainless steel
Ring Joint Gasket
Lens Ring Gasket
With Graphite filler
Joint Sheet
With flat SUS inserted
With PTFE Tape
PTFE Solid Gasket
Oval or Octagonal
With Mica filler
With Graphite Tape
Joint Sheet
With tanged SUS inserted
Oval or Octagonal
With Graphite Tape
Joint Sheet
Ring Joint Gasket
Serrated Gasket
Spiral Wound Gasket
Metal Jacketed Gasket
Graphite Sheet Gasket
Non-asbestos Sheet gasket
Ring Joint Gasket
Spiral Wound Gasket
Non-asbestos Sheet gasket
Rubber Gasket
Non-asbestos Sheet gasket
Spiral Wound Gasket
Metal Jacketed Gasket
Ring Joint Gasket
Spiral Wound Gasket
Non-asbestos Sheet gasket
Graphite Sheet & Gasket
Spiral Wound Gasket
PTFE Sheet Gasket
Ring Joint Gasket
Spiral Wound Gasket
Spiral Wound Gasket
Non-asbestos Sheet gasket
Graphite Sheet & Gasket
Ring Joint Gasket
Spiral Wound Gasket
Non-asbestos Sheet gasket
1600 Series
1800 Series
1303 Series
2000 Series
3601 Series
3602 Series
5102 Serie
5000 Series
1303 Series
5102 Series
5000 Series
5102 Serie
1303 Series
2000 Series
1600 Series
1603 Series
1303 Series
5102 Serie
3602 Series
1303 Series
4200 Series
1600 Series
1503 Series
1303 Series
5102 Series
3602 Series
1600 Series
1303 Series
5102 Series
800
550
800
700
550
500
200
600
400
200 ~ 300
500
200 ~ 300
300
500
600
500
250
400
150
150
815
500
150~200
400
500
150 ~ 260
Fluid Gasket Type Description KST
STYLE No.Pressure
kgf/cm2Max ServiceTemperature
Service Conditions
: according to material specification
WHAT IS A GASKET?A gasket is a material or combination of materials essentially designed for inclusion between twostationary members of a flange joint. The primary function of any gasket is to seal effectively, forpreventing leakage of the media into the atmosphere.
The gasket material selected must be capable of sealing mating surfaces, resistant to the mediumbeing sealed, and able to withstand the application temperatures and pressures.
GASKET SELECTIONGaskets can be clearly defined into three main categories, non-metallic, semi-metallic and metallictypes. The mechanical characteristics and performance of a gasket will vary extensively, dependingupon the type of gasket selected and the materials, from which it is manufactured.Obviously, mechanical properties are an important factor when considering gasket design, but theprimary selection of a gasket type is influenced by the following factors;
Temperature of the media to be contained.Pressure of the media to be contained.Corrosive nature of the application.
NON- METALLICUsually composite sheet materials for low pressure class applications.They are suitable for a wide range of general and corrosive chemicalservices and are supplied in both non-asbestos and asbestos materials.
Types : Elastomers, Compressed Asbestos Fiber (CAF) Sheets, Non-asbestos Fiber Sheets, PTFE gaskets, Insulating Gaskets, GraphiteSheet Products.
SEMI-METALLICA composite gasket consists of both non-metallic and metallicmaterials. The metal generally provides the strength and resilience ofthe gasket. These gaskets are suitable for both low and hightemperature/pressure applications. A wide range of materials areavailable.Type : Metal Jacketed Gaskets, Spiral Wound Gaskets.
METALLICIt can be fabricated from one metal or a combination of metallicmaterials, in a variety of shapes and sizes depending on hightemperature/pressure applications.
High loads are required to seat metallic gaskets, relying on thedeformation of the material into the flange imperfections.
Type : Ring Type Joints, Lens Rings, Delta Rings, Bridgeman Rings,Serrated Gaskets, Corrugated Gaskets.
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Cryogenic fluidLiquid Gases
Alcohol,Glycerine,Acetone
Aromatic Compound,Hydrocarbon(Benzene,Toluene,Xylene, Cyclohexane)Solvent
Strong Acid,Sulfuric, hydrochloric, nitric,and acetic acid
Strong Alkali,Caustic Soda,Caustic Potash
Weak Acid,Weak Alkali,Salt Solution
Light Oil,Gasoline,Naphtha,Gas Oil,Heavy Oil,Lubricant
Animal andVegetable Oil
100
10
10
210
100
10 ~ 20
20
210
100
100
20
10
20
10
100
20
20
10 ~ 20
210
175
25
10
10 ~ 20
10
With Graphite filler
with Flat SUS and tanged insert
Oval or Octagonal
With Graphite filler
Joint Sheet
Oval or Octagonal
With Graphite filler
With PTFE filler
VITON
With Graphite filler
Joint Sheet
Oval or Octagonal
With Graphite filler
Joint Sheet
Joint Sheet
Spiral Wound Gasket
Graphite Sheet & Gasket
Jacketed Metal Gasket
Ring Joint Gasket
Spiral Wound Gasket
Non-asbestos Sheet gasket
PTFE Sheet Gasket
Ring Joint Gasket
Spiral Wound Gasket
Spiral Wound Gasket
PTFE Sheet Gasket
Non-asbestos Sheet gasket
PTFE Sheet Gasket
Rubber Gasket
Spiral Wound Gasket
PTFE Sheet Gasket
Non-asbestos Sheet Gasket
Non-asbestos Sheet gasket
Ring Joint Gasket
Spiral Wound Gasket
Non-asbestos Sheet Gasket
Rubber Gasket
Non-asbestos Sheet Gasket
Rubber Gasket
1303 Series
3600 Series
2000 Series
1600 Series
1303 Series
5102 Series
4200 Series
1600 Series
1303 Series
1303 Series
4200 Series
5102 Series
4200 Series
5000 Series
1303 Series
4200 Series
5102 Series
5102 Series
1600 Series
1303 Series
5102 Series
5000 Series
5102 Series
5000 Series
-196
-196
-196
500
150 ~ 260
200
500
200
200
150
200
150
400
150
80
150 ~ 260
500
260
150 ~ 260
Fluid Gasket Type Description KST
STYLE No.Pressure
kgf/cm2Max ServiceTemperature
Service Conditions
Remarks(1) Maximum service temperature and pressure are not guaranteed values. Non-metallic gasket can not
be used simultaneously at both maximum temperature and maximum pressure.(2) : according to material specification.
GASKET INSTALLATION PROCEDUREIt is important that all bolted joints be tighted uniformly and in a diametrically staggeredpattern, as illustrated in below figure, except for special high pressure closures when theinstructions of the manufacturer should be followed.
- Center the gasket on the flange. This is extermely vital where raised faces are involved.Note : Standard ANSI ring gaskets, when properly cut, Should center themselves when thebolts are in place.
- Use a torque wrench and well-lubricated fasteners with hardened flat washers to ensurecorrect initial loading.
- Tighten bolts to compress gasket uniformly. This means going from side to side around thejoint in a star-like crossing pattern.
- All bolts should be tightened in one-third increments, according to proper bolting patterns.
- Retorque 12 to 24 hours after start-up, whenever possible. All applicable safety standardsincluding lockout/tagout procedure should be observed.
- Never use liquid or metallic based anti-stick or lubricating compounds on the gaskets.Premature failure could occur as a result.
BEFORE INSTALLATION- Remove old gasket and clean flange surface of all debris. For best result, use a metal flangescraper and aerosol gasket remover and a wire brush, then inspect the flange for damage. Be sure surface finish and flatness are satisfactory.
- Composition gaskets(non-asbestos,asbestos) become dried out and brittle so that they donot always provided an effective seal when reused.
- Bolted joints and flanges are designed for use with the particular type of gasket specified.Substitution of a gasket of different construction or improper dimensions may be result inleakage and damage to gasket surfaces.
- Metal or metal jacketed gaskets, when compressed initially, flow to match their contactsurfaces. In so doing they are work hardened and if reused, may provided an imprefect sealor result in deformation and damage to the gasket contact surfaces of the equipment.
- When metal jacketed type gaskets are used with a tongue groove joint without nubbin. The gasket should be installed so that the tongue bears on the seamless side of the gasketjacket. When nubbin is used, the nubbin should bear on the seamless side.
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Facing Sketch (Exaggerated)Basic Gasket Seating Width, bo
Column Column
Effective Gasket Seating Width, "b" Location of Gasket Load Reaction
Effective Gasket Width Table. 1-a
Note : The gasket factors listed only apply to flanged joints in which the gasket is contained entirely within theinner edges of the bolt holes.
b = bo when bo 6.35mm
b=2.52bo when bo 6.35mm
Where serrations do not exceed 0.4mm depth and 0.8mm width spacing, sketches(1b) and (1d) shall be used.
Gasket Materials and Contact Facings
Rubber Sheet
Asbestos with suitable binder for operating conditions.
Elastomers with Cotton fabric insertion
Elastomers with Asbestos fabricInsertion(with or without wireReinforcement)
Vegetable fiber
Spiral WoundGasket
CorrugatedMetal JacketedGasket
CorrugatedMetal Gasket
Flat MetalJacketedGasket
SerratedMetalGasket
Flat MetalGasket
Ring Type Joint
(1a),(1b)(1c),(1d)
(4),(5)
(1a),(1b)
(1a),(1b)(1c),(1d)
(1a),(1b)(1c)2,(1d)2
(2)2
(1a),(1b)(1c),(1d)
(2),(3)
(1a),(1b)(1c),(1d)
(2),(3)(4),(5)
(6)
0.501.002.002.753.50
1.25
2.25
2.50
2.75
1.75
3.003.003.003.002.502.753.003.253.502.753.003.253.503.753.253.503.753.503.753.753.253.503.753.754.254.004.755.506.006.505.506.006.50
00.141.122.604.57
0.28
1.55
2.04
2.60
0.77
7.007.007.007.002.042.603.163.874.572.603.163.874.575.343.874.575.345.626.336.333.874.575.346.337.106.199.1412.6615.3318.2812.6615.3318.28
500~750
125~250*3
63~80
~63
63~100
~63
~63
~63
Gasket MaterialsGasket Factor
(m)
Use FacingSketch
Use Column
MindesignseatingStress
(kgf/mm2)
Sketches
Refer to Table (1-a)
Flangesurfacefinish(in)
Gasket Factors (m) for Operating Conditions and Minimum Design Seating Stress (y)
1. This table gives a list of many commonly used gasket materials and contact facings with suggested design values of "m" and "y" that have generally proved satisfactory in actual service when using effective gasket seating width "b" given in the table on the next page.The design values and other details given in this table are suggested only and are not mandatory.
2. The surface of a gasket having a lap should not be against the nubbin.
3. Flange surface finish :1)Tongue and groove, small male and female : 125in for flange side.2)Other face flange : 125~250in for flange side.3)Hot hydrogen hazardous materials and hard to hold fluids : 125in for flange side.
Below 75A Shore durometer 75A or higher Shore durometer
3.2mm thickness1.6mm thickness0.8mm thickness
3 Ply
2 Ply
1 Ply
Asbestos filledGraphite & Teflon filledNon-Asbestos filledCeramic & Mica filledSoft AluminiumSoft copper or BrassSoft Iron or Soft steelMonel or 4%~6% chromeStainless steel or Alloy steelSoft AluminiumSoft copper or BrassSoft Iron or Soft steelMonel or 4%~6% chromeStainless steel or Alloy steelSoft AluminiumSoft copper or BrassSoft Iron or Soft steelMonel4%~6% chromeStainless steel or Alloy steelSoft AluminiumSoft copper or BrassSoft Iron or Soft steelMonel or 4%~6% chromeStainless steel or Alloy steelSoft AluminiumSoft copper or BrassSoft Iron or Soft steelMonel or 4%~6% chromeStainless steel or Alloy steelSoft Iron or Soft steelMonel or 4%~6% chromeStainless steel or Alloy steel
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Spiral Wound Gasket (Semi-metallic)Spiral wound gaskets are to be constructed as alternate plies of preformed metal
windings(hoof) and plain fillers that are spirally wound when compressed between two
flanges. A "v" and "w" shaped crown centered in the metal strip acts as a spring, giving
gaskets greater resilience under varying conditions. Filler and strip (hoof) materials can be
changed to accommodate different chemical compatibility requirements. If the load available
to compress a gasket is limited, gasket construction and dimensions can be altered to
provide an effective seal.
A spiral wound gasket may include a centering ring, an inner ring or both. The outer
centering ring enters the gasket within the flange and acts as a compression limiter, while the
inner ring provides additional radial strength. The inner ring also reduces flange erosion and
protects the sealing element.
Resilience and strength make spiral wound gaskets an ideal choice under a variety of
conditions and applications. Widely used in refineries and chemical processing plants, spiral
wound gasket are also effective for power generation, aerospace, and a variety of valve and
special applications.
The spiral wound gasket industry is looking for change in the specification covering spiral
wound gasket. Previously, it was API 601, the new specification is ASME B16.20. Although
these specifications are very similar, KST is making the change necessary for ASME B16.20.
As environmental regulations and industry requirements become increasingly stringent,
new and custom applications are continuing to evolve. Wherever you need a strong, resilient
seal, our spiral wound gaskets provide an effective solution.
V Shape W Shape
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Ordering Information for Spiral Wound GasketWhen ordering KST spiral wound gaskets, it is imperative that KST style number, materials,applicable flange standard, pressure rating and gasket sizes be given to us. We use thefollowing coding system to identify gasket style and materials.
1-
Example of description ;1) 1100-EOO2) 1201-EEO3) 1301-EEO4) 1312-EOE5) 1303-GGG6) 1402-GOG7) 1501-GGO
Filler material1 : Asbestos tape2 : PTFE tape3 : Graphite tape4 : Synthetic fiber tape (Non-asbestos)5 : Mica tape6 : Special (Combined two filler)
Designation of Low seating stress0 : Ordinary1 : Low seating stress
Ring attachment0 : Without ring1 : With inner ring2 : With centering ring3 : With inner ring & centering ring
Strip (Hoop) materialE : SUS 304 G : SUS 316H : SUS 316L L : SUS 304LI : Inconel M : Monel N : Nickel P : Duplex S.SQ : Hastelloy-C T : TitaniumZ : Others (See available gasket material)
Inner ring materialE : SUS 304 G : SUS 316H : SUS 316L L : SUS 304LI : Inconel M : MonelN : Nickel P : Duplex S.SQ : Hastelloy-C T : TitaniumZ : Others (See available gasket material)O : Without ring
Centering ring materialE : SUS 304 G : SUS 316H : SUS 316L L : SUS 304LI : Inconel M : MonelN : Nickel P : Duplex S.SQ : Hastelloy-C T : TitaniumZ : Others (See available gasket material)O : Without ring
TYPE OF SPIRAL WOUND GASKET BASIC TYPEBasic construction type, inner and outer diameters are reinforcedwith several piles of metal without filler to give greater stabilityand better compression characteristics.- Suitable for tongue and groove, male and female or grooved to
flat face flange assemblies.
INNER RING TYPESolid inner metal ring acts as a compression stopper.To prevent accumulation of solids, reduce turbulent flow ofprocess fluids and minimize erosion, damages of gasket betweenflange bore and the inside diameter, the annular space is filledup by solid inner metal ring. - Suitable for male and female pipe flanges.
CENTERING RING TYPESolid centering ring accurately locates the gasket on the flangeface to give the additional radial strength to prevent the gasketblowout and acts as a compression limiter. In case of installingthe centering ring, it is very easy to install the gasket to flangeface because the end of centering ring will touch at bolts- Suitable for use with flat face and raised face flanges.
For class 900 and above an internal ring is recommended.
INNER RING and CENTERING RING TYPEA inner ring and centering ring type gasket will give anadditional compression limiting stopper for gasket inner andouter side. It will prevent the corrosions on flange face atannular space.- Suitable for use with flat face and raised face flanges and
specified for high pressure / temperature service - Class 900 and above or where corrosive or toxic media are
present.
LSS (Low Seating Stress) TYPEThe type LSS spiral wound gasket type has been engineered byKST to provide an alternative to sheet gaskets in Class 150 andClass 300 service. In case of required low load for seating, TypeLSS gaskets can give the solutions for inherent strength,resiliency and blowout resistance of spiral wound gaskets. Theyare manufactured with high purity flexible graphite filler orPTFE filler for optimum seating.- Suitable for the full range of standard class 150 and class 300
flanges, as well as other non-standard low pressure flanges.
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Materials
Inner Ring & Centering RingMetal Winding Strip Filler
AVAILABLE GASKET MATERIALS
TEMPERATURE LIMITS FOR COMMON METAL & FILLER MATERIALSTemperature
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Stainless Steel
Alloy 20
Monel 400
Inconel 600
Nickel 200
Titanium Gr.2
Hastelloy C276
Duplex SAF 2507
SUS 304
SUS 304L
SUS 316L
SUS 317L
SUS 321
SUS 347
Carbon Steel
Stainless Steel
Alloy 20
Monel 400
Inconel 600
Nickel 200
Titanium Gr.2
Hastelloy C-4
Duplex UNS S31803
SUS 304
SUS 304L
SUS 316L
SUS 317L
SUS 321
SUS 347
Asbestos
Soft PTFE
Flexible Graphite
Non-Asbestos (Synthetic Fiber)
Mica
Flexible graphite has been carefullyresearched and developed to meetindustry's demand for a superior alternativeto asbestos filler in spiral wound gaskets.Flexible graphite provides performance thatis superior to asbestos, and has been fieldproven through year of actual service incritical applications throughout the world.
Flexible graphite is pure graphite and ismanufactured without the use of filters,resins or binders that could deteriorate atelevated temperature.
PTFE : If PTFE is subjected to temperaturesabove 250composition starts to occurslowly, increasing rapidly above 400.Care should be taken to avoid inhaling theresultant fumes, which may produceunpleasant effects.
-300 -200 -100 0 100 200 300 400 500 600 700 800 900 1000
-300 -200 -100 0 100 200 300 400 500 600 700 800 900 1000
Strip(Hoop)
Filler
SUS 304
SUS 304L
SUS 316L
SUS 317L
SUS 321
SUS 347
Alloy 20
Monel 400
Inconel 600
Nickel 200
Titanium Gr.2
Hastelloy C276
Duplex SAF2507
Asbestos Tape
non-Asbestos
PTFE Tape
Graphite Tape In Non-Oxidative Circumstance
Mica Tape
Name CrossSection
KST Style No. and Filler materials
Asbestos Combinedtwo FillerMicaNon-
AsbestosGraphiteTeflon(PTFE)
Flange Type Gasket Style
TYPES
SHAPES
SELECTION OF GASKET ACCORDING TO FLANGE TYPE
Basic type
Inner ring type
Centering ring type
Inner ring andcentering ring type
1100
1101
1102
1103
1200
1201
1202
1203
1300
1301
1302
1303
1400
1401
1402
1403
1500
1501
1502
1503
1600
1601
1602
1603
Variety shapes of spiral wound gasket are very available.Before ordering the gasket type, Please contact us the detailed specifications The spiral wound types are noted as the most economical and highest quality semi-metallic gasket.
Flat Face
Raised Face
Male & Female Face
Tongue & Groove Face
Flat & Groove Face
With Centering ring
With Centering ring& Inner ring
With Centering ring
With Centering ring& Inner ring
Basic Type
With Inner ring
Basic Type
Basic Type
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MAXIMUM BORE OF ASME B16.5 FLANGES FOR USE WITH SPIRAL-WOUND GASKETS (ASME B16.20-2000)
1
1
1
2
2
3
4
6
8
10
12
14
16
18
20
24
Pressure Class75 600 900(1) 1500(1) 2500(1)400300150
FlangeSize
(NPS)
No flanges
WN flange only(2)
SO flange (3)WN flange (2)
SO flange (3)WN flange, any bore
SO flangeWN flange, any bore
No flangesUse Class
600
WN flangeonly(2)
SO flange (3)WN flange(2)
SO flange (3)WN flange,
any bore
SO flange (3)WN flange,
any bore
WN flange with Schedule 10S bore described in ASME
B36.19M [includes nozzle (4) but excludes SO flange]
No flangesUse Class
1500
WN flange with Schedule10S bore described in
ASMEB36.19M
[excludes nozzle (4) and SO flange](5)
WN flange withSchedule 80 bore
[excludes nozzle (4)and SO flange](5)
No flanges
WN flange only (2)
WN flange with SW bore[includes nozzle (4)
but excludes SO Flange]
GENERAL NOTES :
(a) This table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown in Page22~23 are recommended, considering the tolerances involved, possible eccentric installation, and the possibility that the gasket may extend into the assembled flange bore.
(b) Abbreviations : SO = slip on and threaded WN = welding neck SW = standard wall
NOTES :
(1) Inner rings are required for Class 900 gaskets, NPS 24; Class 1500 gaskets, NPS 12 through NPS 24; and Class2500 gaskets, NPS 4 through NPS 12.
(2) In these sizes the gasket is suitable for a welding neck flange with a standard wall bore, if the gasket and theflanges are assembled concentrically. This also applies to a nozzle. It is the user's responsibility to determine if the gasket is satisfactory for a flange of any larger bore.
(3) Gaskets in these sizes are suitable for slip-on flanges only if the gaskets and flanges are assembled concentrically.
(4) A nozzle is a long welding neck, the bore equals the flange NPS.
(5) An NPS 24 gasket is suitable for nozzles.
Recommendable the width of inner ring and inside diameter of gasket
The width of spiral wound gasket, when it iscompressed, tends to expand and a space for theexpansion is to be taken into account in design offlanges or joints.
(1) Flat or raised face is widely employed for pipeflanges and machinery joints as a gasket seatingface. Spiral wound gasket with centering ring orwith centering/inner rings is normally used onsuch flanges or joints. The following space is idealfor the gasket and it is desired to be taken into account when design new machinery andequipments.
(2) Tongue-and-groove or male-and-female flange issometimes employed in pressure vessels and valvebonnets. Basic type spiral wound gasket (without ring) is normally used for the former case and spiral wound gasket with inner ring for the lattercase. It is desired to have the following clearancefor the mentioned gaskets.
The Value of W is normally regarded as the width ofgasket sealing element. The gasket contact area Wcan be obtained in the following way.
in case of nominal gasket thickness 6.4 mmW = W - 2.0mm
in case of nominal gasket thickness 4.5 mmW = W - 1.5mm
in case of nominal gasket thickness 3.2 mmW = W - 1.0mm
The depth(f4) of tongue-and-groove or male-and-female flange must be more than 5 mm if nominalgasket thickness is 4.5mm.
Space and clearance for gasket
I.D of spiral wound sealing element
I.D of spiral woundsealing element
Recommended Clearanceb c
~ 250251 ~ 630631 ~ 1,600
1,601 ~
0.50.81.01.3
45
7.510
Nominal gasket thickness When compressedUnit : mm
1.63.24.56.4
1.25 0.052.4 0.13.3 0.14.8 0.2
~ 50
51 ~ 100
101 ~ 250
251 ~ 630
631 ~ 1,600
1,601 ~
3
3
4
5
7.5
10
2
2
3
3
5
5
Compression Thickness of GasketRecommendable compression thickness of KST'sspiral wound gasket is as listed in the following table.
Inside Diameter of Gasket (mm)
14
12
10
8
6
4
2
0100 200 300 400 500 600 700
W
i
d
t
h
o
f
I
n
n
e
r
R
i
n
g
(
m
m
)
Unit : mm
Unit : mm
Recommended Clearance
a b
-
Korea Seal Tech.
21
Korea Seal Tech.
20
Spiral Wound Gasket based on JIS B 2404-1999 for JIS B 2220 &JIS B 2238~2240 Flanges (Male and Female, Tongue and Groove)
D2 D3 D2 D3 D1 D2 D3
16K ~ 63K 16K ~ 63K16K ~ 63K
Tongue and Groove Male and FemaleMale and FemaleNom.PipeSize
Basic Type (JIS "A" type)Style No. 1100
No. 1200No. 1300No. 1400
With inner Ring (JIS "B" type)Style No. 1101
No. 1201No. 1301No. 1401
Dimensions are in mm
10A
15
20
25
32
40
50
65
80
90
100
125
150
200
250
300
350
400
25
29
37
44
54
59
70
90
100
110
125
150
187
231
288
338
376
434
38
42
50
60
70
75
90
110
120
130
145
175
215
259
324
374
414
474
28
32
38
45
55
60
70
90
100
110
125
150
190
230
296
341
381
441
38
42
50
60
70
75
90
110
120
130
145
175
215
259
324
374
414
474
19
23
31
38
46
51
62
80
90
100
113
138
171
215
268
318
356
409
25
29
37
44
54
59
70
90
100
110
125
150
187
231
288
338
376
434
38
42
50
60
70
75
90
110
120
130
145
175
215
259
324
374
414
474
Gasket tolerance for JIS B 2404D1 D2 D3 TSIZE
10 ~ 150
200
250 ~ 400 0.5 0.8
0.3 0.5
0.80.2
0.5
Spiral Wound Gasket based on ASME/ANSI B16.5 and BS1560 of Male and Female, Tongue and Groove Flanges.
Basic Construction typeStyle No. 1100
No. 1200No. 1300No. 1400
KST Basic construction type spiral woundgaskets are dimensioned to suit existingASME/ANSI B16.5 and BS1560 tongue/grooveflanges.
KST Standard basic construction gaskets aremanufactured 3.2mm thickness. This is therecommended thickness for basic constructiongaskets where limited space is available andsmall diameters and narrow widths are required
ID (D2) OD (D3) ID (D2) OD (D3) ID (D2) OD (D3) ID (D2) OD (D3)
Large Male and Female Large Tongue and Groove Small Tongue and Groove
Sealing ElementCLASS 150 ~ 1500
Sealing ElementCLASS 2500
Sealing ElementCLASS 150 ~ 2500
Sealing ElementCLASS 150 ~ 2500
Nom.PipeSize
Dimensions are in mm
1
1
1
2
2
3
4
5
6
8
10
12
14
16
18
20
24
25.4
33.3
38.1
47.6
54.0
73.0
85.7
108.0
131.8
160.3
190.5
238.1
285.8
342.9
374.7
425.5
489.0
533.4
641.4
34.9
42.9
50.8
63.5
73.0
92.1
104.8
127.0
157.2
185.7
215.9
269.9
323.9
381.0
412.8
469.9
533.4
584.2
692.2
20.6
27.0
31.8
41.3
47.6
60.3
76.2
95.3
120.7
146.1
171.5
222.3
273.1
330.2
-
-
-
-
-
34.9
42.9
50.8
63.5
73.0
92.1
104.8
127.0
157.2
185.7
215.9
269.9
323.9
381.0
-
-
-
-
-
25.4
33.3
38.1
47.6
54.0
73.0
85.7
108.0
131.8
160.3
190.5
238.1
285.8
342.9
374.7
425.5
489.0
533.4
641.4
34.9
42.9
50.8
63.5
73.0
92.1
104.8
127.0
157.2
185.7
215.9
269.9
323.9
381.0
412.8
469.9
533.4
584.2
692.2
25.4
33.3
38.1
47.6
54.0
73.0
85.7
108.0
131.8
160.3
190.5
238.1
285.8
342.9
374.7
425.5
489.0
533.4
641.4
34.9
42.9
47.6
57.2
63.5
82.6
95.3
117.5
144.5
173.0
203.2
254.0
304.8
362.0
393.7
447.7
511.2
558.2
666.9
Basic construction type gaskets must be installed with a correctly dimensioned compression stopper. For a standard 3.2mm thickness gasket, it should be compressed between the following limits 2.3 to 2.5mm.
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Korea Seal Tech.
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Korea Seal Tech.
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Spiral Wound GasketBased on Gasket Standard of ASME B 16.20a-2000 For ASME/ANSI B16.5 Raised Face Flanges.( Of API 601- 1988 For API 605 Raised Face Flanges )( Of JPI-7S-41-1998 For JPI-7S-15 Raised Face Flanges )
A
15
20
25
32
40
50
65
80
90
100
125
150
200
250
300
350
400
450
500
600
B
1
1
1
2
2
3
3
4
5
6
8
10
12
14
16
18
20
24
D1
81.0
-
106.4
131.8
157.2
209.6
260.4
314.5
342.9
393.7
444.5
495.3
603.2
D1
78.7
-
102.6
128.3
154.9
196.9
246.1
292.1
320.8
374.7
425.5
482.6
590.6
D219.0
25.4
31.8
39.6
47.8
58.7
69.8
95.2
-
120.6
147.6
174.8
222.2
276.4
323.8
355.6
412.8
463.6
520.7
628.6
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
-
149.4
177.8
209.6
257.3
311.2
368.3
400.0
457.2
520.7
571.5
679.4
D463.5
69.8
79.5
88.9
98.6
143.0
165.1
168.4
-
206.5
247.6
289.1
358.9
435.1
498.6
520.7
574.8
638.3
698.5
838.2
D1
81.0
-
106.4
131.8
157.2
206.2
257.8
314.5
339.9
387.4
438.2
489.0
577.8
D1
78.7
-
97.8
124.5
147.3
196.9
246.1
292.1
320.8
368.3
425.5
476.3
577.9
D219.0
25.4
31.8
39.6
47.8
58.7
69.8
92.2
-
117.6
143.0
171.4
215.9
266.7
323.8
362.0
406.4
463.6
514.4
616.0
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
-
149.4
177.8
209.6
257.3
311.2
368.3
400.0
457.2
520.7
571.5
679.4
D463.5
69.8
79.5
88.9
98.6
143.0
165.1
174.8
-
209.6
254.0
282.7
352.6
435.1
520.7
577.8
641.4
704.8
755.6
901.7
D1
81.0
-
106.4
131.8
157.2
200.2
247.6
292.1
D1
78.7
97.8
124.5
147.3
196.9
246.1
292.1
D219.0
25.4
31.8
39.6
47.8
58.7
69.8
92.2
-
117.6
143.0
171.4
215.9
270.0
317.5
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
-
149.4
177.8
209.6
257.3
311.2
368.3
D469.8
76.2
85.9
104.9
117.6
146.0
168.4
196.8
-
235.0
279.4
317.5
387.4
476.2
549.4
Class 900 Class 1500 Class 2500NPS
NOTE : (1) The dimensions are revised in ASME B16.2a-2000 Addenda.
(2) The dimensions of * marks and Class 400 NPS 1/2 ~ 3", Class 900 NPS 1/2 ~ 2 1/2" are only
recommended in JPI standard.
ABBREVIATIONS : ASME/ANSI B16.2a (2000ED) API JPI ASME/ANSI B16.2a (1981ED)
Dimensions are in mm
14.2
20.6
26.9
33.3
41.4
52.3
63.5
14.2
20.6
26.9
33.3
41.4
52.3
63.5
14.2
20.6
26.9
33.3
41.4
52.3
63.5
Inner rings shall be furnished with all spiral-wound gaskets having PTFE(polytetra-fluoroetylene) filler
material. It is recommended that inner rings be specified by the user for flexible graphite and other filler
materials (if appropriate for flanges and bore sizes used), particularly where experience has demonstrated
inward bucking of the gaskets to be a problem. Inner rings shall be furnished in spiral-wound gaskets for
flanges NPS 24 and larger in Class 900, NPS 12 and larger in Class 1500, and NPS 4 and Larger in Class
2500, Gaskets with inner rings should be used only with socket welding, lapped, welding neck, and
integral flanges.
Tolerance for ASME B16.2a-2000, API Std.601-1988D1SIZE D2 / D3 D4
NPS " ~ 8"NPS 10" ~ 24"
NPS " ~ 3"NPS 3" ~ 24"Thickness of Gasket
Thickness of Ring
-
-
0.8
1.5
+0.25, -0
2.97 ~ 3.32
0.8
-
-
0.4 /0.8
0.8 /+1.5,-0.8
-
-
Tolerance for JPI-7S-41-1998D2 , D3SIZE D1 , D4
~ 250mm
250mm ~ 630mm
630mm ~ 1600mm
Thickness
0.5
0.8
1.3
+0.2, -0
0.8
1.3
Spiral Wound GasketBased on Gasket Standard of ASME B 16.20a-2000 For ASME/ANSI B16.5 Raised Face Flanges.( Of API 601- 1988 For API 605 Raised Face Flanges )( Of JPI-7S-41-1998 For JPI-7S-15 Raised Face Flanges )
A
15
20
25
32
40
50
65
80
90
100
125
150
200
250
300
350
400
450
500
600
B
1
1
1
2
2
3
3*
4
5
6
8
10
12
14
16
18
20
24
D114.2
20.6
26.9
38.1
44.4
55.6
66.5
81.0
93.7
106.4
131.8
157.2
215.9
268.2
317.5
349.2
400.0
449.3
500.1
603.2
D219.0
25.4
31.8
47.8
54.1
69.8
82.6
101.6
114.3
127.0
155.7
182.6
233.4
287.3
339.9
371.6
422.4
474.7
525.5
628.6
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
133.3
149.4
177.8
209.6
263.7
317.5
374.6
406.4
463.6
527.0
577.8
685.8
D447.8
57.2
66.8
76.2
85.9
104.9
124.0
136.7
161.9
174.8
196.8
222.2
279.4
339.9
409.7
450.8
514.4
549.4
606.6
717.6
D114.2
20.6
26.9
38.1
44.4
55.6
66.5
81.0
93.7
106.4
131.8
157.2
215.9
268.2
317.5
349.2
400.0
449.3
500.1
603.2
D219.0
25.4
31.8
47.8
54.1
69.8
82.6
101.6
114.3
127.0
155.7
182.6
233.4
287.3
339.9
371.6
422.4
474.7
525.5
628.6
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
133.3
149.4
177.8
209.6
263.7
317.5
374.6
406.4
463.6
527.0
577.8
685.8
D454.1
66.8
73.2
82.6
95.2
111.3
130.3
149.4
165.1
181.1
215.9
251.0
308.1
362.0
422.4
485.9
539.8
596.9
654.0
774.7
D1
102.6
128.3
154.9
205.7
255.3
307.3
342.9
389.9
438.2
488.9
590.6
D1
106.4
131.8
157.2
209.6
260.4
317.5
349.2
400.0
449.3
500.1
603.2
D219.0
25.4
31.8
47.8
54.1
69.8
82.6
101.6
114.3
120.6
147.6
174.8
225.6
274.6
327.2
362.0
412.8
469.9
520.7
628.6
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
133.3
149.4
177.8
209.6
263.7
317.5
374.6
406.4
463.6
527.0
577.8
685.8
D454.1
66.8
73.2
82.6
95.2
111.3
130.3
149.4
161.9
177.8
212.9
247.6
304.8
358.9
419.1
482.6
536.7
593.9
647.7
768.4
D1
78.7
102.6
128.3
154.9
205.7
255.3
307.3
342.9
389.9
438.2
489.0
590.6
D1
81.0
106.4
131.8
157.2
209.6
260.4
317.5
349.2
400.0
449.3
500.1
603.2
14.2
20.6
26.9
38.1
44.4
55.6
66.5
93.7
14.2
20.6
26.9
38.1
44.4
55.6
66.5
81.0
93.7
D219.0
25.4
31.8
47.8
54.1
69.8
82.6
101.6
114.3
120.6
147.6
174.8
225.6
274.6
327.2
362.0
412.8
469.9
520.7
628.6
D331.8
39.6
47.8
60.5
69.8
85.9
98.6
120.6
133.3
149.4
177.8
209.6
263.7
317.5
374.6
406.4
463.6
527.0
577.8
685.8
D454.1
66.8
73.2
82.6
95.2
111.3
130.3
149.4
161.9
193.8
241.3
266.7
320.8
400.0
457.2
492.3
565.2
612.9
682.8
790.7
Class 150 Class 300 Class 400 Class 600NPS
With Centering RingStyle No. 1102
No. 1402
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
Dimensions are in mm
-
Korea Seal Tech.
25
Korea Seal Tech.
24
Spiral Wound Gaskets based on gasket standard ofASME B 16.20a-2000 for ASME/ANSI B16.47 Series A( OF API 601- 1988 for MSS SP-44 Flanges )( OF JPI-7S-41-1998 for JPI-7S-15 Series A Flanges )
GENERAL NOTES : This table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown in belowTable are recommended, considering the tolerances involved, the possibility of eccentric installation, and thepossibility that the gasket may extend into the assembled flange bore.
NOTES :(1) Inner rings are required for all PTFE gaskets and Class 900 NPS 26 through NPS 48. (2) Applies only to welding neck flanges with a bore not larger than the inside diameter of a 0.187-in wall pipe.
Larger bores must be checked individually.(3) Applies only to welding neck flanges with a bore not larger than the inside diameter of a 0.25-in. wall pipe,
except that NPS 38, Class 300, is not suitable for a bore larger than the inside diameter of a 0.30-in.wall pipe. Larger bores must be checked individually.
(4) There are no Class 900 flanges in NPS 50 through 60.
MAXIMUM BORE OF ASME B16.47 SERIES A FLANGES FOR USE WITH SPIRAL WOUND GASKETS
26 ~ 4850 ~ 60
(2) (3) (3) (3) (3)(2) (3) (3) (3) (4)
Pressure Class150 300 400 600 900(1)
FlangeSize
(NPS)
A
650
700
750
800
850
900
950
1000
1050
1100
1105
1200
1250
1300
1350
1400
1450
1500
B
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
D1647.7
698.5
755.6
812.8
863.6
917.7
952.5
1009.6
1066.8
1111.2
1162.0
1219.2
1270.0
1320.8
1378.0
1428.8
1473.2
1530.4
D2685.8
736.6
793.8
850.9
901.7
955.8
990.6
1047.8
1104.9
1162.0
1212.8
1270.0
1320.8
1371.6
1428.8
1479.6
1536.7
1593.8
D3736.6
787.4
844.6
901.7
952.5
1006.6
1041.4
1098.6
1155.7
1212.8
1263.6
1320.8
1371.6
1422.4
1479.6
1530.4
1587.5
1644.6
D4866.9
914.4
971.6
1022.4
1073.2
1130.3
1104.9
1155.7
1219.2
1270.0
1327.2
1390.6
1447.8
1498.6
1555.8
1612.9
1663.7
1733.6
D1
660.4
768.4
-
-
-
-
-
-
D1
666.8
774.7
-
-
-
-
-
-
D2685.8
736.6
793.8
850.9
901.7
958.8
1035.0
1098.6
1149.4
1206.5
1270.0
1320.8
-
-
-
-
-
-
D3736.6
787.4
844.6
901.7
952.5
1009.7
1085.8
1149.4
1200.2
1257.3
1320.8
1371.6
-
-
-
-
-
-
D4882.7
946.2
1009.7
1073.2
1136.6
1200.2
1200.2
1251.0
1301.8
1368.6
1435.1
1485.9
-
-
-
-
-
-
Class 600 Class 900NPS
Dimensions are in mm
711.2
812.8
863.6
920.8
1009.7
1060.4
1111.2
1155.7
1219.2
1270.0
Spiral Wound Gaskets based on gasket standard of ASME B 16.20a-2000 for ASME/ANSI B16.47 Series A (Raised face flanges)( OF API 601- 1988 for MSS SP-44 Flanges )( OF JPI-7S-41-1998 for JPI-7S-15 Series A Flanges )
A
650
700
750
800
850
900
950
1000
1050
1100
1105
1200
1250
1300
1350
1400
1450
1500
B
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
D1654.0
704.8
755.6
806.4
857.2
908.0
958.8
1009.6
1060.4
1111.2
1162.0
1212.8
1263.6
1314.4
1358.9
1409.7
1460.5
1511.3
D2673.1
723.9
774.7
825.5
876.3
927.1
977.9
1028.7
1079.5
1130.3
1181.1
1231.9
1282.7
1333.5
1384.3
1435.1
1485.9
1536.7
D3704.8
755.6
806.5
860.6
911.4
968.5
1019.3
1070.1
1124.0
1178.1
1228.9
1279.7
1333.5
1384.3
1435.1
1485.9
1536.7
1587.5
D4774.7
831.8
882.6
939.8
990.6
1047.8
1111.2
1162.0
1219.2
1276.4
1327.2
1384.3
1435.1
1492.2
1549.4
1606.6
1663.7
1714.5
D1654.0
704.8
755.6
806.4
857.2
908.0
952.5
1003.3
1054.1
1104.9
1152.7
1209.8
1244.6
1320.8
1352.6
1403.4
1447.8
1524.0
D2685.8
736.6
793.8
850.9
901.7
955.8
977.9
1022.4
1073.2
1130.3
1178.1
1235.2
1295.4
1346.2
1403.4
1454.2
1511.3
1562.1
D3736.6
787.4
844.6
901.7
952.5
1006.5
1016.0
1070.1
1120.9
1181.1
1228.9
1286.0
1346.2
1397.0
1454.2
1505.0
1562.1
1612.9
D4835.2
898.7
952.5
1006.6
1057.4
1117.6
1054.1
1114.6
1165.4
1219.2
1273.3
1324.1
1378.0
1428.8
1492.2
1543.0
1593.8
1644.6
D1660.4
711.2
755.6
812.8
863.6
917.7
952.5
1000.3
1051.1
1104.9
1168.4
1206.5
1257.3
1308.1
1352.6
1403.4
1454.2
1517.6
D2685.8
736.6
793.8
850.9
901.7
955.8
971.6
1025.7
1076.5
1130.3
1193.8
1244.6
1295.4
1346.2
1403.4
1454.2
1505.0
1568.4
D3736.6
787.4
844.6
901.7
952.5
1006.6
1022.4
1076.5
1127.3
1181.1
1244.6
1295.4
1346.2
1397.0
1454.2
1505.0
1555.8
1619.2
D4831.8
892.3
946.2
1003.3
1054.1
1117.6
1073.2
1127.3
1178.1
1231.9
1289.0
1346.2
1403.4
1454.2
1517.6
1568.4
1619.2
1682.8
Class 150 Class 300 Class 400NPS
With Centering RingStyle No. 1102
No. 1402
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
Dimensions are in mm
Tolerance for ASME B16.2a-2000, API 601-1988D2 / D3SIZE D1 / D4
NPS 26" ~ 34"
NPS 36" ~ 60"
Thickness
0.8 /1.5
1.3 /1.5+0.25, -0
3.0/0.8
Tolerance for JPI-7S-41-1998D2 / D3SIZE D1 / D4
NPS 630 ~ 1600
NPS 1600 ~
Thickness
1.3
2.0+0.20, -0
1.3
NOTE : ASME/ANSI B16.2a API JPI
-
Korea Seal Tech.
27
Korea Seal Tech.
26
Spiral Wound Gaskets based on gasket standard of ASME B 16.20a-2000 for ASME/ANSI B16.47 Series B Large Diameter Steel Flanges( Of API 601- 1988 For API 605 Flanges )( Of JPI-7S-41-1998 For JPI-7S-15 Series B Flanges )
GENERAL NOTES :
This table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown in page26~27 are recommended, considering the tolerances involved, the possibility of eccentric installation, and thepossibility that the gasket may extend into the assembled flange bore.
NOTES : (1) Inner rings are required for Class 900 gaskets, NPS 26 through NPS 48.(2) There are no Class 900 flanges NPS 50 and larger. (3)Gasket dimensions from 38" to 60" for Class 400,600,900 flanges are not specified in JPI-7S-41
ABBREVIATIONS : ASME/ANSI B16.47(2000ED) API JPI ASME/ANSI B16.47(1981ED)
Dimensions are in mm
A
650
700
750
800
850
900
950
1000
1050
1100
1105
1200
1250
1300
1350
1400
1450
1500
B
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
D1654.0
701.8
752.6
800.1
850.9
898.7
952.5
1000.2
1051.0
1104.9
1168.4
1206.5
1257.3
1308.1
1352.6
1403.4
1454.2
1517.7
D2666.8
714.5
765.3
812.8
866.9
917.7
971.6
1025.5
1076.3
1130.3
1193.8
1244.6
1295.4
1346.2
1403.4
1454.2
1505.0
1568.5
D3698.5
749.3
806.4
860.6
911.4
965.2
1022.4
1076.3
1127.2
1181.1
1244.6
1295.4
1346.2
1397.0
1454.2
1505.0
1555.8
1619.3
D4746.3
800.1
857.2
911.4
962.2
1022.4
1073.2
1127.2
1178.0
1231.9
1289.1
1346.2
1403.4
1454.2
1517.7
1568.5
1619.3
1682.8
D1
685.8
D1
692.2
D1
644.7
692.2
752.6
793.8
850.9
901.7
952.5
1009.7
1066.8
1111.3
1162.1
1219.2
1270.0
1320.8
1378.0
1428.8
1473.2
1530.4
D2663.7
704.8
778.0
813.8
889.0
939.8
990.6
1047.8
1104.9
1162.1
1212.9
1270.0
1320.8
1371.6
1428.8
1479.6
1536.7
1593.9
D3714.5
755.6
828.8
882.6
939.8
990.6
1041.4
1098.6
1155.7
1212.9
1263.7
1320.8
1371.6
1422.4
1479.6
1530.4
1587.5
1644.7
D4765.3
819.2
879.6
933.4
997.0
1047.8
1104.9
1155.7
1219.2
1270.0
1327.2
1390.7
1447.8
1498.6
1555.8
1612.9
1663.7
1733.6
D1
666.7
717.6
781.0
920.8
D1
673.1
723.9
787.4
927.1
D1
673.1
723.9
787.4
838.2
895.4
927.1
1009.7
1060.5
1111.3
1155.7
1219.2
1270.0
-
-
-
-
-
-
D2692.2
743.0
806.4
863.6
920.8
946.2
1035.1
1098.6
1149.4
1206.5
1270.0
1320.8
-
-
-
-
-
-
D3749.3
800.1
857.2
914.4
971.6
997.0
1085.9
1149.4
1200.2
1257.3
1320.8
1371.6
-
-
-
-
-
-
D4838.2
901.7
958.8
1016.0
1073.2
1124.0
1200.2
1251.0
1301.8
1368.5
1435.1
1485.9
-
-
-
-
-
-
Class 400 Class 600 Class 900NPS
MAXIMUM BORE OF ASME 16.47 SERIES B FLANGES FOR USE WITH SPIRAL WOUND GASKETS (ASME B16.20a-2000)
26 ~ 5052 ~ 60
Pressure Class150 300 400 600 900(1)
Welding neck and integral flanges having maximum inside diameters as described in ASME B16.47
FlangeSize
(NPS)
Tolerance for ASME B16.2a-2000, API 601-1988D2 / D3SIZE D1 / D4
NPS 26" ~ 34"
NPS 36" ~ 60"
Thickness
0.8 /1.5
1.3 /1.5+0.25, -0
3.0/0.8
Tolerance for JPI-7S-41-1998D2 / D3SIZE D1 / D4
NPS 630 ~ 1600
NPS 1600 ~
Thickness
1.3
2.0+0.20, -0
1.3
Spiral Wound Gaskets based on gasket standard of ASME B 16.20a-2000 for ASME/ANSI B16.47 Series B Large Diameter Steel Raised face Flanges( Of API 601- 1988 for API 605 Flanges )( Of JPI-7S-41-1998 for JPI-7S-15 Series B Flanges )
A
650
700
750
800
850
900
950
1000
1050
1100
1105
1200
1250
1300
1350
1400
1450
1500
B
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
D1
1422.4
1478.0
1535.2
D1
1412.7
1463.5
1514.3
D2
1444.8
1500.4
1557.3
D2
1435.1
1485.9
1536.7
D3
1470.1
1522.4
1573.3
D3
1477.8
1528.8
1586.0
D4725.4
776.2
827.0
881.1
935.0
987.6
1044.7
1095.5
1146.3
1197.1
1255.8
1306.6
1357.4
1408.2
1463.8
1514.6
1579.6
1630.4
D1
1054.1
1200.1
1346.2
1504.9
D2
1111.2
1263.6
1403.4
1589.0
D3
1149.4
1311.4
1454.2
1630.4
D1
1085.8
1231.9
1365.2
1557.3
D2
1079.5
1231.9
1384.3
1536.7
D3
1117.6
1270.0
1422.4
1574.8
D4771.7
825.5
886.0
939.8
993.9
1047.8
1098.6
1149.4
1200.2
1251.0
1317.8
1368.6
1419.4
1470.2
1530.4
1593.8
1655.8
1706.6
Class 150 Class 300NPS
With Centering RingStyle No. 1102
No. 1402
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
1) For limitations on the maximum flange bore for use with these spiral-wound gaskets.
2) Inner rings shall be furnished with all spiral-wound gaskets having PTFE(polytetra-fluoroetylene) filler
material. It is recommended that inner rings be specified by the user for flexible graphite and other filler
materials (if appropriate for flanges and bore sizes used), particularly where experience has demonstrated
inward bucking of the gaskets to be a problem.
Dimensions are in mm
654.0
704.8
755.6
806.4
857.2
908.0
971.6
1022.4
1124.0
1178.1
1267.0
1317.8
1428.8
1484.4
698.5
749.3
800.1
850.9
908.0
958.8
1009.6
1063.8
1114.6
1165.4
1224.0
1270.0
1325.6
1376.4
1422.4
673.1
723.9
774.7
825.5
876.3
927.1
974.6
1022.4
1079.5
1124.0
1181.1
1231.9
1282.7
1333.5
1384.3
654.0
704.8
755.6
806.4
857.2
908.0
958.8
1009.6
1060.4
1111.2
1162.0
1212.8
1263.6
1314.4
1365.2
673.1
723.9
774.7
825.5
876.3
927.1
1009.6
1060.4
1162.0
1216.2
1317.8
1368.6
1479.6
1535.2
711.2
762.0
812.8
863.6
914.4
965.2
1047.8
1098.6
1200.2
1254.3
1355.9
1406.7
1524.0
1573.2
-
Korea Seal Tech.
29
Korea Seal Tech.
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Spiral Wound Gasket based on JIS B 2404-1999 for JIS B 2238 & JIS B 2238~2240 Flanges.
10A1520253240506580901001251502002503003504004505005506006507007508008509001000110012001300135014001500
182228344349617789102115140166217268319356407458508559610660714762813860914101611181219
-1372
-1524
242834405157698798112125152178229282333372432478528569630685739784838889939104611481249
-1402
-1554
37414753677389107118130143173199252310361406457518568619670784779827878929979108611881289
-1442
-1594
5257627484891041241341441591902202703323774224845395946507007508108709209701020112412341344
-1498
-1658
1822283443496177891021151401662172683193564074585085596106847347928428929421050115012601354141414641574
2428344051576987991141271521822332883393764324835335846357047548148649149641074117412841384144414941604
3741475367738910711913915217721426532837941648253358363468575480486491496410141124122413341434149415441654
52576274848910412414015016520223728235440445050857362868473478483689694599510451158125813681474153415841694
182228344349617789102115140166217268319356407458508559610704754812872932982
-------
2428344051576987991141271521822332883393764324835335846357247748348949541004
-------
3741475367738910711913915217721426532837941648253358363468577482488494410041054
-------
52576274848910412414015016520223728235440445050857362868473480585591897810381088
-------
D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D410K 16K 20KNom. Pipe Size
10A152025324050658090100125150200250300350400
18222834434961688092104128153202251300336383
242834405157697890102116140165218271320356403
3741475367738998110127141165197250311360396453
5964697989100114140150162172207249294360418463524
15182329384355688092104128153202251300336383
212429354451637890102116140165218271320356403
3437424860677998110127141165197250311360396453
5964697989100114140150162182224265315378434479531
15182329384355688092104128153202251300336383
212429354451637890102116140165218271320356403
3437424860677998110127141165197250311360396453
6469758090107125152162179194235275328394446488545
D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D430K 40K 63KNom. Pipe Size
With Inner Ring and Centering Ring(JIS "D" Type)Style No. 1103
No. 1203No. 1303No. 1403
Dimensions are in mm
Note : D1 dimensions for 10K class are not specified in JIS B 2404 The gasket dimensions from 650~1500A are only recommended in KST standard.
Spiral Wound Gasket Based on JIS B 2404-1999 for JIS B 2220 & JIS B 2238~2240 Flanges.
With Centering Ring(JIS "C" Type)Style No. 1102
No. 1202No. 1302No. 1402
10A1520253240506580901001251501752002252503003504004505005506006507007508008509001000110012001300135014001500
242834405157698798110123148174201227252278329366417468518569620692752807853903953105811681273
-1428
-1583
37414753677389107118130143173199226252277310361406457518568619670724784839889939989109412041309
-1464
-1619
5257627484891041241341441591902202452702903323774224845395946507007508108709209701020112412341344
-1498
-1658
242834405157698799114127152182
-233
-2883393764324835335846357047548148649149641074117412841384144414941604
37414753677389107119139152177214
-265
-32837941648253358363468575480486491496410141124122413341434149415441654
525762748489104124140150165202237
-282
-35440445050857362868473478483689694599510451158125813681474153415841694
242834405157698799114127152182
-233
-2883393764324835335846357247748348949541004
-------
37414753677389107119139152177214
-265
-32837941648253358363468577482488494410041054
-------
525762748489104124140150165202237
-282
-35440445050857362868473480585591897810381088
-------
242834405157697890102116140165
-218
-271320356403
-----------------
3741475367738998110127141165197
-250
-311360396453
-----------------
5964697989100114140150162172207249
-294
-360418463524
-----------------
212429354451637890102116140165
-218
-271320356403
-----------------
3437424860677998110127141165197
-250
-311360396453
-----------------
5964697989100114140150162182224265
-315
-378434479531
-----------------
212429354451637890102116140165
-218
-271320356403
-----------------
3437424860677998110127141165197
-250
-311360396453
-----------------
6469758090107125152162179194235275
-328
-394446488545
-----------------
D2 D3 D4 D2 D3 D4 D2 D3 D4 D2 D3 D4 D2 D3 D4 D2 D3 D410K 16K 20K 30K 63K40KNom.
PipeSize
Dimensions are in mm
Please consult the KST Technical department for slip-on sizes.The gasket dimensions from 650~1500A are only recommended in KST standard.
Tolerance for JIS B 2404-1999Descriptions Tolerance(mm)
1. Thickness
2. Gasket ID
3. CenteringRing OD
NPS 10A ~ 200A
NPS 250A ~ 600A
10K, 16K, 20K, 30K, 40K, 60K
NPS 10A ~ 175A
NPS 200A ~ 500A
NPS 550A ~ 600A
40K, 63K (Inner & Outering Type)
NPS 10A ~ 125A
NPS 150A ~ 400A
0.20.50.8
0.30.50.8
0.30.5
-
Korea Seal Tech.
31
Korea Seal Tech.
30
D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D4
Class 600 CLASS 1500 CLASS 2500CLASS 900Nom.PipeSize
Dimensions are in mm
1
1
1
2
2
3
4
5
6
8
10
12
14
16
18
20
24
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
25.4
31.8
44.5
50.8
66.7
79.4
95.3
120.7
147.6
174.6
225.4
281.0
333.4
365.1
415.9
469.9
520.7
625.5
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
54.0
66.7
73.0
82.6
95.3
111.1
130.2
149.2
193.7
241.3
266.7
320.7
400.1
457.2
492.1
565.2
612.8
682.6
790.6
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
25.4
31.8
44.5
50.8
66.7
79.4
95.3
120.7
147.6
174.6
225.4
281.0
333.4
365.1
415.9
469.9
520.7
625.5
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
63.5
69.9
79.4
88.9
98.4
142.9
165.1
168.3
206.4
247.7
288.9
358.8
435.0
498.5
520.7
574.7
638.2
698.5
838.2
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
25.4
31.8
44.5
50.8
66.7
79.4
95.3
120.7
147.6
174.6
225.4
281.0
333.4
365.1
415.9
469.9
520.7
625.5
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
63.5
69.9
79.4
88.9
98.4
142.9
165.1
174.6
209.6
254.0
282.6
352.4
435.0
520.7
577.9
641.4
704.9
755.7
901.7
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
-
-
-
-
-
19.1
25.4
31.8
39.7
47.6
58.7
69.9
92.1
120.7
147.6
174.6
225.4
281.0
333.4
-
-
-
-
-
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
-
-
-
-
-
69.9
76.2
85.7
104.8
117.5
146.1
168.3
196.9
235.0
279.4
317.5
387.4
476.3
549.3
-
-
-
-
-
Spiral Wound Gasket based on BS3381 for BS1560 Flanges (Raised Face)
With Outer RingStyle No. 1102
No. 1402
With Outer and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
Spiral Wound Gasket based on BS3381 for BS1560 Flanges (Raised Face)
D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D4
Class 150 Class 400Class 300Nom.PipeSize
These gasket dimensions are not suitable for use with slip-on or screwed flanges.
In accordance with BS3381 all class 900, 1500 and 2500 gaskets and all gaskets containing PTFE filler material
shall have an inner ring.
Dimensions are in mm
1
1
1
2
2
3
4
5
6
8
10
12
14
16
18
20
24
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
27.0
33.3
46.0
54.0
69.9
82.6
101.6
127.0
154.0
181.0
231.8
287.3
339.7
371.5
422.3
476.3
527.1
631.8
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
47.6
57.2
66.7
76.2
85.7
104.8
123.8
136.5
174.6
196.9
222.3
279.4
339.7
409.6
450.9
514.4
549.3
606.4
717.6
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
25.4
31.8
44.5
50.8
66.7
79.4
95.3
120.7
147.6
174.6
225.4
281.0
333.4
365.1
415.9
469.9
520.7
625.5
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
54.0
66.7
73.0
82.6
95.3
111.1
130.2
149.2
181.0
215.9
250.8
308.0
362.0
422.3
485.8
539.8
596.9
654.1
774.7
14.3
20.6
27.0
34.9
41.3
52.4
63.5
77.8
103.2
128.6
154.0
203.2
254.0
303.2
342.9
393.7
444.5
495.3
596.9
19.1
25.4
31.8
44.5
50.8
66.7
79.4
95.3
120.7
147.6
174.6
225.4
281.0
333.4
365.1
415.9
469.9
520.7
625.5
31.8
39.7
47.6
60.3
69.9
85.7
98.4
120.7
149.2
177.8
209.6
263.5
317.5
374.7
406.4
463.6
527.1
577.9
685.8
54.0
66.7
73.0
82.6
95.3
111.1
130.2
149.2
177.8
212.7
247.7
304.8
358.8
419.1
482.6
536.6
593.7
647.7
768.4
With Centering RingStyle No. 1102
No. 1402
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
-
Korea Seal Tech.
33
Korea Seal Tech.
32
Spiral Wound Gasket based on French Standard NF-M-87621
With Centering RingStyle No. 1102
No. 1402
(D2)A B (D3) (D4) (D2) (D3) (D4) (D2) (D3) (D4) (D2) (D3) (D4) (D2) (D3) (D4) (D2) (D3) (D4)
PRESSURE CLASS
150 300 600 900 1500 2500
SealingElement
Cent.Ring
SealingElement
Cent.Ring
SealingElement
Cent.Ring
SealingElement
Cent.Ring
SealingElement
Cent.Ring
SealingElement
Cent.Ring
Nom.PipeSize
Dimensions are in mm
1
1
1
2
2
3
4
5
6
8
10
12
14
16
18
20
24
15
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
19
25
32
48
54
70
83
102
127
156
183
233
287
340
372
422
475
525
629
29
37
44
57
67
82
95
117
146
176
206
260
314
371
403
460
524
575
682
47
57
66
76
85
104
124
136
174
197
222
279
339
409
451
514
549
606
717
19
25
32
48
54
70
83
102
127
156
183
233
287
340
372
422
475
525
629
29
37
44
57
67
82
95
117
146
176
206
260
314
371
403
460
524
575
682
54
66
73
82
95
111
130
149
181
216
251
308
362
422
485
539
597
654
774
19
25
32
48
54
70
83
102
120
148
175
225
275
327
362
413
470
521
629
29
37
44
57
67
82
95
117
146
176
206
260
314
371
403
460
524
575
682
54
66
73
82
95
111
130
149
193
241
266
320
400
457
492
565
612
682
790
19
25
32
40
48
59
70
95
120
148
175
225
275
327
362
413
464
514
616
29
37
44
57
67
82
95
117
146
176
206
260
314
371
403
460
524
575
682
63
70
79
89
98
143
165
168
206
247
289
359
435
498
520
574
638
698
838
19
25
32
40
48
59
70
92
118
143
171
216
270
324
362
413
454
514
516
29
37
44
57
67
82
95
117
146
176
206
260
314
371
403
460
524
575
682
63
70
79
89
98
143
165
174
209
254
282
352
435
520
578
641
705
756
901
19
25
32
40
48
59
70
92
118
143
171
216
270
324
-
-
-
-
-
29
37
44
57
67
82
95
117
146
176
206
260
314
371
-
-
-
-
-
70
76
86
105
117
146
168
197
235
279
317
387
476
549
-
-
-
-
-
Contact technical department for inner ring dimensions.The use of an inner ring is recommended for gaskets for use with class 900 flanges and above.
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
Spiral Wound Gasket based on DIN Flanges PN10-PN250
INNER RINGINSIDE
DIAMETER(D1)
SEALINGELEMENT
INSIDEDIAMETER
(D2)
SEALING ELEMENTOUTSIDE DIAMETER (D3)
PN10~PN40 PN10 PN16 PN25 PN40 PN64 PN100 PN160 PN250PN64~PN250
CENTERING RING OUTSIDE DIAMETER (D4)Nom.PipeSize(DN)
Dimensions are in mm
10
15
20
25
32
40
50
65
80
100
125
150
175
200
250
300
350
400
500
600
700
800
900
1000
18
24
27
34
44
51
59
73
87
114
140
168
189
220
269
319
365
416
520
615
715
815
915
1015
24
30
33
40
50
57
69
83
97
124
150
178
199
230
279
329
375
426
530
630
730
830
930
1030
36
42
47
54
66
73
87
103
117
144
172
200
225
256
307
357
405
458
566
666
770
874
974
1078
36
42
47
54
66
73
87
105
121
148
176
204
231
262
315
365
413
466
574
674
778
882
982
1086
46
51
61
71
82
92
107
127
142
162
192
217
247
272
327
377
437
488
593
695
810
917
1017
1124
46
51
61
71
82
92
107
127
142
162
192
217
247
272
328
383
443
495
617
734
804
911
1011
1128
46
51
61
71
82
92
107
127
142
168
194
224
254
284
340
400
457
514
624
731
833
942
1042
1154
46
51
61
71
82
92
107
127
142
168
194
224
265
290
352
417
474
546
628
747
852
974
1084
1194
56
61
72
82
87
103
113
138
148
174
210
247
277
309
364
424
486
543
657
764
879
988
1108
1220
56
61
72
82
87
103
119
144
154
180
217
257
287
324
391
458
512
572
704
813
-
-
-
-
56
61
-
82
-
103
119
144
154
180
217
257
284
324
388
458
-
-
-
-
-
-
-
-
67
72
-
83
-
109
124
154
170
202
242
284
316
358
442
538
-
-
-
-
-
-
-
-
With Centering RingStyle No. 1102
No. 1402
With Centering Ring and Inner RingStyle No. 1103
No. 1203No. 1303No. 1403
The use of an inner ring is recommended for gaskets for use with PN100 flanges and above.
-
Korea Seal Tech.
35
Korea Seal Tech.
34
TYPE OF METALLIC GASKET RING JOINT GASKETSolid-metal gaskets with oval and octagonal cross sectionsprovide the pressure-proof joints for high-pressure and hightemperature lines. Ring joint gaskets are identified by R, RX, orBX number that relates to flange size, pressure class, theappropriate flange standard. Irregular type ring joint gaskets such as Bridgeman ring, deltaring, double cone ring, round ring are also available with regardto customer's request. - Up to Class 20,000 psi , oil field on dirlling, petroleum equipment.
CORRUGATED GASKETIn order to give better surface contact, in which the spring effectof metal is present, the metal corrugated gasket is used in lowpressure applications that require a thin line contact because ofspace or weight limitations or where available bolt loads are low.The corrugated metal gaskets are excellent sealing effects in gas.- These are widely used in class 150 and 300 valve caps and pipe
flanges.
SERRATED GASKETSerrated gasket are manufactured using a metallic base ringmachined which concentric grooves at an appropriate angle anddepth, then covered with a soft sealing element. and give theadvantages of reducing the bolt load required to effect a seal. - These gaskets are used for high pressure/temperature steam,
gas line.
FLAT METAL GASKETThe flat surface metal gasket of simple type provides pressure-proof joints for high pressure and temperature lines.The flat metal gaskets require more bolt loads than thecorrugated and serrated gasket. - These gaskets are used for high pressure/temperature steam,
gas line, valve caps and pipe flanges, heat exchangers.
JACKETED METAL GASKETS (Semi-Metallic)The internal part of gasket is composed of an non-asbestos orglass wool or graphite millboard and the outside is jacketed bythe various thin metallic material.Various available shape are such as round, oval, non-circular, etc.- Up to Class 900, steam, water, hot water, hydrocarbon,
cryogenic line, low temperature gas, LPG
-
Korea Seal Tech.
37
Korea Seal Tech.
36
METALLIC RING JOINT GASKETRING JOINTRing joint gaskets were initially developed for use in the petroleum industry, where highpressure/temperature applications requires the need for high integrity seal.They are mainly used in the oil field on drilling and completion equipment.Ring type joints are also usually used for valves and pipework assemblies, along with somehigh integrity vessel joint.
TYPE AND SHAPE
ORDERING INFORMATION
160-
Pressure ClassFor Flange / Gasket
Surface Finish
1600(Octagonal)
1601(Oval) 1600RX 1600BX
STANDARD No. R RX BX
KST STYLE No.
SHAPE
STYLE No.MATERIAL CODE
3000 ~ 5000 psi
API Spec. 6B / 6A
63 RMS (Max.)
150 ~ 3000 psi
API Spec. 6B / 6A
63 RMS (Max.)
2000 ~20000 psi
API Spec. 6BX / 6A
32 RMS (Max.)
MATERIAL AND HARDNESS
Soft Iron
Soft Steel
SUS304
SUS304L
SUS316
SUS316L
SUS347
SUS410
Aluminium
Copper
Monel 400
Nicke 200
Titanium
RING GASKETMATERIAL MATERIAL CODE
MAXIMUMSERVICE TEMP.()
MAXIMUM HARDNESS
H Brinell H Rockwell "B"
D
S
E
L
G
H
K
O
AL
C
M
NI
T
90
120
160
150
160
150
160
170
40
60
140
120
160
56
68
83
81
83
81
83
86
-
-
77
68
83
550
550
815
425
815
450
815
640
200
200
480
315
350
H Brinell of soft iron : 500kg load
Ordering Information For Metallic GasketWhen ordering KST metallic gaskets, it is imperative that KST style number, materials,applicable flange standard, pressure rating and gasket sizes be given to us. We use thefollowing coding system to identify gasket style and materials.
1700G-
Example of description ;1) 1600BX-S2) 1700G-G3) 1800-E4) 1900G-G5) 2000H6) 2500L
TYPEStyle No. Description
Selection of Type
1600
1601
1600BX
1600RX
1602
1603
1604
1700
1700G
1700P
1800
1900
1900G
2000
2001
2002
2003
2100
2101
2500
2501
Ring
Joint
Gasket
Corrugated
gasket
Serrated gasket
Flat gasket
Metal Jacketed
Gasket
(Semi-Metallic)
Metal
O-Ring
Octagonal Ring Joint gasket
Oval Ring Joint gasket
Extra-High-pressure Octagonal Ring Joint gasket
High-pressure service Octagonal Ring Joint gasket
Pressure seal ring Joint gasket
Lens Ring Joint gasket
Delta Ring Joint gasket
Corrugated gasket
Corrugated gasket covered with pure graphite
Corrugated gasket covered with PTFE
Serrated gasket
Flat gasket
Flat gasket covered with pure graphite
Single Metal Jacketed gasket
Double Metal Jacked gasket
Corrugated Metal Jacked gasket
Rounded Metal Jacked gasket
Pure graphite treated Single Metal Jacketed gasket
Pure graphite treated Double Metal Jacketed gasket
Basic Metal O-Ring
Pressure balanced Metal O-Ring
Selection of Material
AL
E
H
M
D
T
C
G
L
NI
S
Z
Aluminium
SUS 304
SUS 316L
Monel
Soft iron(C/S)
Titanium
Copper
SUS 316
SUS 304L
Nickel
Soft Steel(C/S)
-
Korea Seal Tech.
39
Korea Seal Tech.
38
R51R52R53R54R55R56R57R58R59R60R61R62R63R64R65R66R67R68R69R70R71R72R73R74R75R76R77R78R79R80R81R82R84R85R86R87R88R89R90R91R92R93R94R95R96R97R98R99R100R101R102R103R104R105
10
12
14
16
18
20
24
10
12
14
16
18
20
24
10
12
14
16
18
20
24
10
12
14
16
18
20
24
8
10
12
10
12
14
16
18
20
8
10
12
14
16
18
20
8
10
279.40304.80323.85323.85342.90381.00381.00381.00396.88406.40419.10419.10419.10454.03469.90469.90469.90517.53533.40533.40533.40558.80584.20584.20584.20673.10692.15692.15692.15615.95635.00
57.1563.5079.3890.49