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CVS Controls Series 470
Piston Actuators
The CVS Series 470 is a double acting
pneumatic Piston Actuator, suitable
for use with Globe, Angle, Three Way,
and Reverse acting valves as well as
Steam Equipment. Capable of high
thrust applications to 19,500 lb-f,
with a maximum travel to 8 1/8
inches.
The CVS Series 470 Actuator may be
used in on/off applications, as well as
throttling service when used with a
positioner.
Head Office
3900 101 Street
Edmonton, Alberta
T6E 0A5
Canada
Office: (780) 437-3055
Fax: (780) 436-5461
Website:
www.cvs-controls.com
Email:
info@cvs-controls.com
INSTRUCTION MANUAL
Calgary Sales Office
3516 114 Avenue SE
Calgary, Alberta
T2Z 3V6
Canada
Office: (403) 250-1416
Fax: (403) 291-9487
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Related Manuals for CVS CVS 471
Summary of Contents for CVS CVS 471
- Page 1 INSTRUCTION MANUAL CVS Controls Series 470 Piston Actuators The CVS Series 470 is a double acting pneumatic Piston Actuator, suitable for use with Globe, Angle, Three Way, and Reverse acting valves as well as Steam Equipment. Capable of high thrust applications to 19,500 lb-f, with a maximum travel to 8 1/8 inches.
- Page 2 *reduce max thrust by 10% if using a positioner ** Cast Iron Yoke Standard The CVS 471 Piston Actuator operates by pneumatic air loading pressure to one side of the piston, and unloading the opposing side. Because no positioner is included, a loading device such as a 4 way switch valve must be installed if no additional positioner has been ordered for use in conjunction with the CVS 471 Actuator.
- Page 3 The CVS 471 Actuator should be installed in a location which will allow adequate room for service, maintenance and removal if required. 1. Mounting of the CVS 471 Actuator is achieved by using the 8 supplied nuts and bolts, rather than a yoke locknut. Although the actuator may be mounted in any position, typical installation is with the CVS 471 in the vertical position above the control valve.
- Page 4 Push Down to Close Installation – Direct Acting Valves: 1. After installation of the CVS 471 Actuator to the control valve set the actuator to the top of its stroke and ensure the valve plug is in the closed position. Install two valve stem locknuts, as well as travel indicator disc (if used) all the way onto the stem threads.
- Page 5 Push Down to Open Installation – Reverse Acting Valves: 1. Once the CVS 471 actuator is installed, pressure the actuator in order to cycle the Piston Rod to the extreme upward position. Reverse loading pressure to move the Piston Rod lower approximately 1/8”.
- Page 6 The torque value for the Piston rod Extension it 150 ft/lbs . Reassemble the CVS 471 Actuator in reverse order as described above. Contact a CVS Controls Ltd. representative for more information or to order spare parts as required.
- Page 7 CVS Series 470 Piston Actuator – Dimensions (inches) CVS 471-16 Size 80 CVS 471-16 Size 100 P a g e...
- Page 8 CVS Series 470 Piston Actuator – Assembly CVS 471-16 Size 80: P a g e...
- Page 9 CVS Series 470 Piston Actuator – Assembly CVS 471-16 Size 80: Item Number Part Number Description Quantity CVS 2R853346582 Piston Rod Extension CVS 1H865114042 Upper Seal Bushing CVS 1D348306992 O-Ring, Nitrile CVS 1E736906992 O-Ring, Nitrile CVS 1P3957X0012 Spring Retainer Spacer...
- Page 10 CVS Series 470 Piston Actuator – Assembly CVS 471-16 Size 100: Apply Lubriplate Mag-1, or equivalent Apply Loctite 242, or equivalent 10 | P a g e...
- Page 11 CVS Series 470 Piston Actuator – Assembly CVS 471-16 Size 100: Item Number Part Number Description Quantity CVS 32A1321X012 Yoke, D65-45-12 CVS 2R8514X0012 Piston Rod, 416 SST, Cr-pl CVS 10A6354X012 Connecting Block, 1018 CVS 1R945614042 Lower Seal Bushing, Brass C36000 CVS 1A771132982 Cap Screw, 1/2-13 X 2.13...
- Page 12 3900 101 Street 3516 114 Avenue SE Edmonton, Alberta Calgary, Alberta T6E 0A5 T2Z 3V6 Canada Canada Office: (780) 437-3055 Office: (403) 250-1416 Fax: (780) 436 5461 Fax: (403) 291-9487 Website: www.cvs-controls.com Email: info@cvs-controls.com September 2014 12 | P a g e...
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