Slide 0
Valve Portfolio
Slide 1
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
Slide 2
Valves for Isolation
Slide 3
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
Slide 4
30 inch ASME 300 Lift Plug Valve with integral drain valve
Slide 5
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
Slide 6
Y globe Valve with back seating Y globe Valve – piston design Y globe Valve with disc grinding
Slide 7
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
Slide 8
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
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
Slide 9
5) Special Gate Valves
40” standard gateSlide gate valve
Slide 10
Choke Valves
Slide 11
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
Slide 12
Choke Valves
High pressure choke valve – 71KS Actuated choke valve – 71ES Start up choke valve – 71KS
Slide 13
Control Valves
Slide 14
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
Slide 15
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)
Slide 16
Angle Control Valves – “X-Flash” design (Model 74 BS) – Flow to open
“X-Flash” Angle Control Valve – Model 74BS
Slide 17
“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
Slide 18
8) “Multi-S” Control Valve- Model 74MS
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 74MS
Slide 19
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
Slide 20
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
Slide 21
11) Gasification Control Valves
• Black Water let down (under liquid level)
• Dry Coal feed control
• Black Gas let down (lock hopper)
•B
lack
Wate
r let d
ow
n ( fro
m a
bove)
Slide 22
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
Slide 23
Outlet
Bypass
Inlet (Pump side)
Automatic recirculation valve (ARC) Recirculation flow control valve
Slide 24
Switching Valves
Slide 25
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
Slide 26
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
Slide 27
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
Slide 28
Four Way Diverter Valve – Model 42 Five Way Diverter Valve – Model 47
Slide 29
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
Slide 30
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
Slide 31
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)
2/3 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
Slide 32
Bypass Outlet
SwitchPlug outlets cross section from above,inlet from below
Slide 33
Safety Related Valves
Slide 34
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
Slide 35
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
Slide 36
48 inch ASME 150 line blind system Offshore ASME 600# line blind system
Slide 37
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
Slide 38
Changeover valve Tandem Changeover valve –offshore design
14 inch ASME 300 line tandem changeover valve for FPSO
Slide 39
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
Slide 40
Emergency Tank Shut Off (TESO) Valve
KOTC – TESO valve for LNG in Kuwait
Slide 41
Drain and Injection Valves
Slide 42
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
Zero leakage to atmosphere
Self cleaning piston and integral flushing
Fire safe according to BS 6755 Pt. 2
Slide 43
Ram drain valve – Model 28KR Ram drain valve – Model 26KR
Slide 44
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
Slide 45
Disc rising drain valve with metal bellows
Disc lowering drain valve –Model 24BS
Slide 46
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
Slide 47
Sampling and Rinsing Valves
Slide 48
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
Slide 49
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
Slide 50
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
Slide 51
Slide 52
General Information
Slide 53
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
Slide 54
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
Slide 55
Sample Customer List