SchuF Valve Guide v6

Valve Portfolio

Valves for Isolation

1) IsoPlug – Lift Plug Valve

2) Y-Globe Valve

3) HP Angle Isolation Valve

4) Special Gate Valve

Choke Valves

5) Choke valves

Control Valves

6) Angle Control Valves

7) Multistage Control valve

8) Cage Style Control Valve

9) Y Globe Control Valve

10) Gasification Control Valves

11) Automatic Recirculation Valve

Valve Portfolio by Function

Switching Valves

12) Diverter Valves

13) SwitchPlug Valve

Safety Related Valves

14) Line Blind System – Cam-Set

15) Changeover Valve

16) Emergency Tank Safety Valves

Drain & Injection Valves

17) Ram Bottom Outlet Valve

18) Disk Bottom Outlet Valve

19) Injection Valves

Sampling and Rinsing Valves

20) Sampling Systems

21) Spray Rinse Valve

Valves for Isolation

1) IsoPlug (Special Design Lift Plug Valve)

Application: Isolation valve for high temperature processes

Process: Delayed coking, ethylene cracking and FCC

Key Features:

1” (DN25) to 40” (DN 1000)

Integral Double Block & Bleed Design

Protected Valve Seat (PVS)

Unique 3 line Coking Defence System (3 CDS)

Dual motor actuation – no plug sticking

Flushing only required for short periods

30 inch ASME 300 Lift Plug Valve with integral drain valve

2) Y-Globe Valve

Application: Isolation valve for non-clogging applications

Process: Refinery, chemical, & petrochemical processes

Key Features:

1” (DN25) to 36” (DN 900)

ASME 150# to 2500# pressure rating

Optimised flow body design – low pressure drop

Zero leakage to atmosphere

Class VI leakage tight shut off to process

Dead space free back seating option

Disc grinding option to clean seat

Control type Y-Globe also available

Booster pump Y Globe isolation valve in Hydrocracking unit

Y globe Valve with back seating Y globe Valve – piston design Y globe Valve with disc grinding

Application: To isolate high pressure media flow or act as an emergency shutdown valve

Process: Most chemical, refinery, polymer, urea and petrochemical processes

Key Features:

1” (DN25) to 20” (DN 500)

Forged, cast or weld construction

Pressure class to ASME 2500# standard

Positive sealing with stuffing box

Back seating – enhances seal to atmosphere

Top side entry for easier maintenance

Locking device for safety

3) High Pressure Angle Valve

4) Y-Globe Valve

Application: Isolation valve for non-clogging applications

Process: Refinery, chemical, & petrochemical processes

Key Features:

1” (DN25) to 36” (DN 900)

ASME 150# to 2500# pressure rating

Optimised flow body design – low pressure drop


Class VI leakage tight shut off to process

Dead space free back seating option

Disc grinding option to clean seat

Control type Y-Globe also available

5) Special Gate Valves

40” standard gateSlide gate valve

Choke Valves

6) Choke Valves

Application: Throttling and control of high pressure drops

Process: Refinery, urea and petrochemical

Key Features:

DN 25 (1”) to DN 250 (10”)

Pressure rating PN 160 (ASME 1500#) to PN 400 (ASME 2500#) as standard

Guaranteed fixed Cv value (0.29 to 1000)

Zero leakage across the seat

Linear or equal % control characteristics available

Piston/Ram design or disc with a back seating option

Customised choke design

Available in most materials, special coatings, full stelliting, and solid Tungsten Carbide option

Choke Valves

High pressure choke valve – 71KS Actuated choke valve – 71ES Start up choke valve – 71KS

Control Valves

7) Angle Control Valves

Application: For pressure let down, flow and level control

Process: Refinery, chemical, polymer, petrochemical & mineral processing

Key Features: DN 25 (1”) to DN 900 (36”)

Inlet angle 45°, 60° or 90°

Accelerating body geometry design

“X-Flash” (Model 74BS) & “Tough Flash” (74CS) designs

Linear, equal % and SchuF bell X3 curve

Integral plug and stem

Available in most materials, special coatings and trim

SchuF Severe Service Experience

SchuF has provided valves for all of the processes listed below. Theses severe services typically combine high temperature, high pressure drops (Delta P) and have a relatively high media solids content.

0 50 100 150 200 250 300 350400

450500

PTA

Mineral Processing

Hydrocracking

Gasification

Liquefaction

Severe Service Variables for Control Valves

Solids content (%) Temperture (°C) Pressure drop (bar)

Angle Control Valves – “X-Flash” design (Model 74 BS) – Flow to open

“X-Flash” Angle Control Valve – Model 74BS

“ToughFlash” Angle Control Valve – Model 74CS

Model 74CS for HHPS level control application - with solid Tungsten Carbide trim

Model 74CS for Autoclave letdown applications- with ceramic choke tube

8) “Multi-S” Control Valve- Model 74TS

Application: High Pressure Letdown

Multistage valve design features:

Cast or single block forged body available

2, 3 or 4 staged pressure reduction disc design – self cleaning

True Equal % characteristics

Higher SchuF Cv values (1 to 350) allows for greater plant capacity and better pump protection

Large outlet chamber to reduce velocities

Disk opening direction eliminates plugging by catalyst fines

Easy to replace severe service trim

Valve model 74TS

9) “Cage Release” Control Valve – Model 74KS

Applications: Flow, Letdown, & Surge Control

Valve design features:

Multi hole cage disk design – variety of hole placement designs to achieve accurate flow characteristics and noise attenuation

Class VI (API 598) shut off is achieved, eliminating unacceptable leakage

Stainless steel or special hard metal materials can be used

Linear or Equal % control contour

Available with fast opening actuators, and smart positioners

Easy to replace trim parts

Cage trim design

10) Y- Globe Control Valve – Model 50SK

Valve design features:

High throughput and good controllability

Suitable for high pressure (ASME 2500# plus) and high temperature (700°C) applications

Disc or piston variant

Equal %, or linear characteristics

Normal choke or custom control

Zero leakage sealing performance

Application: In line flow control and letdown applications

11) Gasification Control Valves

• Black Water let down (under liquid level)

• Dry Coal feed control

• Black Gas let down (lock hopper)

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bove)

12) Automatic Recirculation (ARC) Valve

Application: To protect centrifugal pumps by assuring minimum flow through the pump at all times

Process: All major processes using centrifugal pumps

Key Features:

Up to 16” (DN 400) standard and ASME 2500#

Modular design

Automatic bypass operation

Non return function

Pressure modulation in bypass

Self cleaning bore

High pressure (to 4500#) and Offshore designs

Outlet

Bypass

Inlet (Pump side)

Automatic recirculation valve (ARC) Recirculation flow control valve

Switching Valves

13) Diverter Valves

Application: To split, combine, switch or isolate media

Process: Polymer and refinery processes

Key Features:

1” (DN25) to 20” (DN 500)

3, 4, 5 and multiport designs

Ideal to replace multiple ball valves and T-pieces

Dead-space free design eliminates the need for back flushing

Positive sealing in enclosed body

Can be used to combine multiple valve functions and save plant space

Weld end, flanged or hub connections

3 Way R Type Combination Diverter – Model 45RK

One inlet and two outlets

R(right angle) design, Ram type

Metal to metal sealing

Dead space free

Full bore unimpeded flow

Stuffing box seal to atmosphere

Fully jacketed

Replacing T pieces & Ball valves with Diverters

The old solution

• Normally T pieces and ball or plug valves are used to isolate the standby valve, resulting in dead space from the takeoff point

• If the liquid is a solid containing slurry, the solids can settle in the ball valve and in the pipe.

• One solution is the use back flushing, i.e. to continuously flush the dead lag back into the main line. However this adds cost and can considerably reduce plant throughput.

The clean alternative

o Diverter valves seal at the take-off point, eliminating dead space

o Continuous back flushing is not required.

o Design more compact

o Very advantageous, especially when 3 or more parallel outlets are required.

Standby ValveClosed

Ball Valve 2Open

T-piece

Dead space area

Four Way Diverter Valve – Model 42 Five Way Diverter Valve – Model 47

4 Way Diverter (Star design)

One inlet and three outlets

Outlets in one plane to inlet at right angles

Star design, Ram type

Metal to metal sealing

Replaceable seats

Dead space and slow space free

Contoured, non rotating pistons

unimpeded flow

Stuffing box seal to atmosphere

Completely jacketed

Patented tangential star design – Model 47DK

Pump Switching Diverter Valves

2-6 Way Feed Pump Diverter Valve

o In many plants several pumps are used in parallel. Of these one is always in standby allowing for repair or maintenance without affecting plant performance.

o Normally T pieces and ball or plug valves are used to isolate the standby valve, resulting in dead space from the takeoff point to the isolation valve. Diverter valves eliminate this dead space

o Flushing / Cleaning / Draining valves can be included in the body of the diverter to optimise cleaning

14) “SwitchPlug” Valve

Application: To switch and isolate media between two or more outlets

Process: Refinery and petrochemical processes

Key Features:

1” (DN25) to 24” (DN 600)

3 outlets (A, B and By-pass) & one inlet

L configuration with 3 outlets @ 120°, or a T with two 90° and one 180° angle outlet

Integral double block and bleed

Diverse flushing & draining options

Dual motor actuation – no sticking

Feature rich actuators for flow regulation

Bypass Outlet

SwitchPlug outlets cross section from above,inlet from below

Safety Related Valves

15) “Cam-Set” (Line Blind System)

Application: Absolute positive isolation

Process: Industry wide, offshore and maritime

Key Features:

DN 10-15 (1/2”) to DN 1200 (48”)

ASME 150# to 600# standard & up to 1500#

No flange or line spreading

One man, one side operation

Fast Change

Material - Carbon steel, stainless steel and all alloys

Special designs for Offshore and Maritime

Cam-Set in Hydrotreating unit

Nr Description1 Body Flange2 Body Pipe3 Body Bolts4 Body Bolt Spacer5 CAMS6 Sealing Actuator7 Actuator Lever8 Actuator Screw Assembly

9,1 Seal Ring9,2 Seal Ring9,3 Seal Ring10 Seal Carrier11 Spectacle Plate Assembly12 Grease Fitting13 Flange 150 ASME Standard

48 inch ASME 150 line blind system Offshore ASME 600# line blind system

16) Changeover Valve (Tandem Variant)

Application: In order to switch between two SRVs or rupture discs

Process: Refinery, chemical & petrochemical processes

Key Features:

1” (DN25) to 14” (DN 350)

ASME 150# and 300# standard

Rising / non rising stem designs

Multiple packing configurations

Reduced pressure drop

Class VI sealing

Tandem construction with chain or rod

Changeover valve Tandem Changeover valve –offshore design

14 inch ASME 300 line tandem changeover valve for FPSO

17) Tank Emergency Shut-Off (TESO) Valve

Key Features:

Several designs for side mounting or tank top installation

Intrinsically safe – fail safe closure

Segmented spindle

In-lying spring or weight closure mechanism on air failure

Emergency handwheel and numerous control accessories

Valve material to suit any media or operating condition

Suitable for cryogenic operations

Application: Tank Emergency Shut-Off (TESO) valves are typically used on storage vessels containing hazardous gas or fluids

Process: Tank farms and storage vessels in refineries, or petrochemical plants

Emergency Tank Shut Off (TESO) Valve

KOTC – TESO valve for LNG in Kuwait

Drain and Injection Valves

18) Ram Bottom Outlet Valve (Drain Valve)

Application: For quick vessel or tank draining or feeding

Process: Industry and process wide

Key Features:

1” (DN25) to 36” (DN 900)

Full nominal bore piston

Drainage is absolutely dead space free

Metal to metal or radial process sealing options


Self cleaning piston and integral flushing

Fire safe according to BS 6755 Pt. 2

Ram drain valve – Model 28KR Ram drain valve – Model 26KR

19) Disc Bottom Outlet Valve (Drain Valve)

Application: For vessel or tank draining or feeding

Process: Industry and process wide

Key Features:

1” (DN25) to 18” (DN 450)

Disc lowering or rising variants

Outlet angle – 45°, 60° or 90°

Dead space free design

Flushing connection for in service cleaning

Automatic crust breaking with disc rising model

Can be combined with sampling valves

Fire safe according to BS 6755 Pt. 2

Disc rising drain valve with metal bellows

Disc lowering drain valve –Model 24BS

20) Injection Valves

Injection Valve - Model 27SE

Inject additives into vessels, tanks or pipelines

The valve flanges directly on to the vessel in order to avoid vessel inlet clogging

Optimised size, angles and distribution of the holes in the steam injection head

Linear control and positioner

Leak path to prevent product back flow

The valve is self cleaning

Available as ½ inch to 6 inches as standard

Sampling and Rinsing Valves

21) Sampling Systems

Application: To enable trouble free sample extraction from reactors, tanks and pipelines

Process: Chemical, pharmaceutical & petrochemical

Key Features:

Up to 10” (DN 250) and ASME 2500#

Suitable for vessel, reactor or pipeline installation

Robust construction for longer valve life

Dead space free, non clogging design

Leakage class V or VI shut-off

Standard designs from stock, customised on demand

Fire safe designs according to BS 6755 Pt. 2

Sampling Valves

Screw in - 32PT Wafer 31PFLine Sampling - Models 30CH

Sampling valves are used in many chemical processes to test contents of pipelines, discharge and storage vessels during processing without loss of valuable or contaminated contents

22) Spray Rinse Valve

Application: Eliminates the need to open or closethe vessel for cleaning

Process: Plastics & polymers and chemical industries

Key Features:

Directs, controls and uses cleaning agents, and anti fouling media efficiently

Customised spray pattern, pressure and volume

Positive metal to metal and radial shut-off

Rotating spray head option

Exchangeable seat and spray head

Non clogging design

General Information

Materials

• Carbon Steels, high Cr 347H (1.4550)

• Stainless Steel 317 / 317L (not used much any more)

• 316 Urea grade, 904L etc.

• Duplex & Super Duplex e.g. 1.4462/3, CD4MCu

• Hastelloy B2, B3 or C276

• Titanium Grade 2, 3, 5, 7, 11 & 12

• Tungsten Carbide

• Ceramics

• Inconel, Monel and many more

– Cast, forged and welded

Surface Treatments

• Titanium Nitriding (Stainless steel and Ti Grade 2)

• Canadizing (Ti Grade 5)

• Colmonoy / Stellite

• Flame spraying (Chrome, Molybdenum, TC)

• Tungsten Carbides

• Solid stellite with/out TC coating

Sample Customer List

Thank You!

Web: www.schuf.com E-mail: [email protected] Tel.: +49 6198 571110

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SchuF Valve Guide v6

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