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On-Off / Control / ESD Rotary Valve Actuators Pneumatic & Hydraulic Double Acting Spring Return All Steel SIL 3 V&A PROCONTROL
On-Off / Control / ESD
Rotary Valve ActuatorsPneumatic & Hydraulic
Double ActingSpring ReturnAll Steel SIL 3
V&A PROCONTROL
VP Series Technical Information
Key Design Features
Construction
Applications
Certifications
V&A Procontrol VP series pneumatic steel scotch yoke actuatorshave been specifically engineered and designed to suit the mostdemanding applications, the classic scotch yoke mechanism hasproved to be the most reliable means of high torque transmis-sion, transforming the linear movement of the piston into a 90rotation which suits all high torque quarter turn valve opera-tional requirments. During the design stage of the V&A Procon-trol scotch yoke actuator range, our engineers have taken intoconsideration 35 years of field experience. The result is thenew V&A Procontrol scotch yoke series.
Modular construction allowing for complete interchangeability.
Weatherproof fabricated carbon steel housing ensures light
weight and high strength.
ISO 5211 Flange connection.
Stainless Steel position indicator complete with VDI/VDE 3845
NAMUR drive slot for monitoring devices.
Standard heavy duty modulating service canted and symmetric
steel scotch yoke mechanism to suit most valve torque
requirements.
High strength heavy duty alloy steel chromium plated transver-sal thrust reaction bar.
Standard pneumatic cylinder, polished with electro less nickel
plated internal coating ensures maximum protection against
corrosion, and longer sealing life suitable for supply pressure of up to 12 bar design.
High pressure gas pneumatic cylinder, in standard carbon steel
for inert gas application, or special application carbon steel for sour gas supply medium, polished with electroless
nickel plated internal coating protection against corrosion,
suitable for supply pressure of up to 160 bar design.
Carbon steel piston supported by high strength alloy steel chromium plated piston rod ensure corrosion resistant
durability.
Fully encapsulated factory welded epoxy coated spring cartridge ensure personnel safety and simplified assembly.
Alloy steel galvanized end stoppers to allow for corrosion
resistant fine valve position adjustment + 5
Emergency manual overrides available are std jack screw and
declutchable hand wheels or hydraulic hand pump.
Special cylinder and sealing materials available for special
applications.
Standard operating temperature range: -29 C / + 90 C.
Actuator torque output up to 400,000Nm.
Low temperature arctic environment application available -46 C.
V&A Procontrol actuator housings have been engineeredconsidering latest industry standards as our starting point forimprovment, the result is a more rugged, robust and strength-ened product suitable for the most demanding applicationssuch as modulating and offshore heavy duty services. Ouracutators generate high torque outputs at a more cost effec-tive price to our clients. V&A Procontrol acuators are madecompletely from fabricated carbon steel.
On/off
Emergency Shut Down (ESD)
Blow Down
Modulating
Heavy Duty Modulating
Fast Acting
ISO 9001:2000
ATEX
PED
SIL
FSMSHigh temperature options available.
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V
R
V&A Procontrol scotch yoke actua-tors all share a common constructionphilosophy known as modularity,which is achieved by utilizing a consis-tent engineering design throughoutour complete range.Our current range of scotch yokeactuators consists of various centerbody sizes.The center bodies have beendesigned to accommodate thewidest variety of pneumatic andhydraulic power cylinders togetherwith the widest variety of springcartridges.The power cylinders can beassembled to either or both sides ofthe center body.The spring cartridges can beassembled onto either side of thecenter body thus allowing for failopen or fail close emergency opera-tion.The manual overrides can beassembled onto eitherside of thecentre body.Our modular contruction and stock-ing availability enables us to meetshort deliveries.
Modular Design
Scotch Yoke Mechanism and Torque Curves
Canted Yoke
Symmetric Yoke
0° 90°
Actuator torqueCanted Scotch Yoke
Valve torque
Ritning 006810
0° 90°
Actuator torqueSymmetric Scotch Yoke
Valve torque
Ritning 006812
The canted scotch yoke is ideal when the valvetorque requirments are highest at the beginning(valve unseating) and the end position (valvereseating) of the valve 90 rotation. The cantedscotch yoke mechanism covers most all andbutterfly valve torque requirments.
The symmetric scotch yoke is ideal when thevalve torque requirements are highest during theintermediate positons of the valves rotation(running). The symmetric scotch yoke is themost suitable yoke design for modulating service.The symetric scotch yoke mechanism is normallyused for plug metal seated ball valves andcontrol valves.
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ITEM DESCRIPTION MATERIAL 1 leetSnobraCgnisuoH
2 Carbon SteelYoke
3 eznorBgnihsuBekoY
4 Transversal thrust bar Alloy Steel (chromium plated)
5 eznorBraBgnidilS
6 leetSnobraCkcolBediuG
7 Cylinder head flange Carbon Steel
8 )detalplekcinsselortcele(leetSnobraCebuTrednilyC
9 Piston Rod Alloy Steel (chromium plated)
10 Carbon SteelPiston
11 leetSnobraCegnalFdnE
12 Alloy SteelTie Rod
13 RBNgnir-O
RBNgnir-O
14 etihparGdegrahcEFTPgnirediugnotsiP
15
16 EFTP+eznorB+leetSgnihsuBdoR
17 Stop Setting Screw Alloy Steel
18 leetSnobraCegdirtraCgnirpS
19 leetSgnirpSyollAgnirpS
20 Stop Setting Screw Alloy Steel
21 )detalpmuimorhc(leetSyollAtfahsgnirpS
VPS Sectional Drawing and Parts List
1918
21
10
6 16 15 12 13 14 17
11
43
21
5
7
8
9
20
Standard pneumatic spring returnactuator illustrated.
TorqueUp to 400,000 Nm
Operating PressuresPneumatic: up to 12 barHydraulic: up to 150 barHPG Range for high pressureGas also available
Standard Paint SpecificationSurface preparation:Sand Blasting to grade SA 2 1/2
Primer coat:Epoxy 60 microns DFT
Intermediate coat:Epoxy 100 microns DFT
Final coat: Polyurethane 40 microns DFT
Final colour:White 200 microns total DFT
*Technical Information Subject to Change
without Notice
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VPS Spring Return Model Number Matrix
VPD Double Acting Model Number Matrix
Actuator Pneumatic Supply Details
V =SCOTCHYOKE
P =PNEUMAT IC
S =SPRINGRETURN
-
YOKE TYPES=SYMMETRICC= CANTED
-
CENTERBODYSIZE.
-
CYLINDERSIZE -
FAILMODE
SPRINGSIZE -
MANUALOVERRIDE
V P S - S
C
- 04
06
07
09
10
13
16
20
27
35
-
100 1000
125 1050
140 1100
180 1050
200 1100
235 1150
280 1200
335 1250
385 1300
435 1350
485 1400
535 1500
585
635
685
735
785
835
885
935
985
- C= FailClose
O= FailOpen
A
B
C
D
E
F
G
H
-
HW= Jackscrew withengaged handwheel
HS = Jackscrew withdisengagedhand wheel
HG =Enclosed jackscrew withspur gear
DH =Declutchablehand wheel
HP= Hydraulichand pump
V =SCOTCHYOKE
V
P =PNEUMAT IC
P
D =DOUBLEACTING
D
-
-
-
-
-
-
-
-
-
-
YOKE TYPES=SYMMETRICC= CANTED
DDS
C
CENTERBODYSIZE.
04
06
07
09
10
13
16
20
27
35
CYLINDER DOUBLE OVERRIDESIZE ACTING
100 1000
125 1050
140 1100
180 1050
200 1100
235 1150
280 1200
335 1250
385 1300
435 1350
485 1400
535 1500
585
635
685
735
785
835
885
935
985
DH =Declutchablehand wheel
HP= Hydraulichand pump
S P D - S - 16 - 685 - D D - H W
ACTUATORBASEMODEL
PNEUMATICSUPPLYPRESSURERANGE
MINIMUMOPERATINGPRESSURE
MAXIMUMOPERATINGPRESSURERANGE
MAXIMUMALLOWABLEWORKINGPRESSURE
ACTUATORSMAXIMUMTORQUE OUTPUTRATING NM
VPS-04 3 to 12 Barg 2.7 BARG 12.0 BARG UPTO 12.0 BARG 1,000VPS-06 3 to 12 Barg 2.6 BARG 12.0 BARG UPTO 12.0 BARG 2,500VPS-07 3 to 12 Barg 1.0 BARG 10.5 BARG UPTO 12.0 BARG 5,000VPS-09 3 to 12 Barg 0.9 BARG 12.0 BARG UPTO 12.0 BARG 9,000VPS-10 3 to 12 Barg 1.5 BARG 10.5 BARG UPTO 12.0 BARG 18,000VPS-13 3 to 12 Barg 1.6 BARG 10.5 BARG UPTO 12.0 BARG 30,000VPS-16 3 to 12 Barg 1.2 BARG 10.5 BARG UPTO 12.0 BARG 50,000VPS-20 3 to 12 Barg 3.0 BARG 12.0 BARG UPTO 12.0 BARG 150,000VPS-27 3 to 12 Barg 3.0 BARG 10.5 BARG UPTO 12.0 BARG 250,000VPS-35 3 to 12 Barg 4.5 BARG 10.5 BARG UPTO 12.0 BARG 400,000
THE MAXIMUM ALLOWABLE WORKING PRESSURE DOES NOT APPLY TO ALL ACTUATOR SIZES AND DEPENDS STRICTLY
ON THE VARIOUS CYLINDER SIZES AVAILABLE FOR EACH MODEL.
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09
/12
Johannesburg
Durban
Tel: (011) 397 2833Fax: (011) 397 4700
E-Mail: [email protected]
Tel: (031) 579 2593Fax: (031) 579 2562E-Mail: [email protected]
Total Valve & Control Solutions™
