AS Series

Spring-Return Pneumatic Valve Actuator

Next generation “compact” model provides a shorter and lighter canister for installations where space is a premium.  

SIL-3 Capable. Thrust up to 72,000 lbs. 

spring return actuator cutaway

 Spring into Action

Custom Comes Standard

 

  • Choose from a full range of readily available dimensional sizes and thrusts
  • Reduce design and developmental costs
  • Faster, simpler selection process improves your project planning and turnaround on proposals, feasibility studies, etc.
SIL3 Actuators

Safety Comes First, Stays First

 

  • Springs are pre-compressed and factory-sealed inside a welded steel canister: no extended tie-rods required!
  • Modular Canisters are easily and safely removed for simple in-field servicing of actuator piston seals

Specifications At a Glance

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Thrust: up to 72,000 lbs

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Bore Size: 6″-42″

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Configuration: Single-Stage and Tandem

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Stroke Range: Up to 12″

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Compact Model Available

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Pressure Rating: 150 psi

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Welding Certified to CSA 47.1 Division 2

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Fail-Close or Fail-Open

Valve Compatibility

Our Series AS Spring-Return Pneumatic Valve Actuator is compatible with any process valve that requires linear motion.

knife gate valve actuator

Knife Gate Valve

gate valve actuator

Gate Valve

Globe Valve

Pinch Valve

AS Series Features

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Interactive Icons

Roll Over the icons to learn more

Fail-Closed

spring return actuator cutaway
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Spring

Available in thrust up to 72,000 lbs.; Ground Flat for stability

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Flange Cover

Allows access to jam-nut to quickly and safely remove the canister for in-field service; Access for manual override available as an option

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Self-Contained Spring Canister

Spring is pre-compressed and factory-sealed inside a welded steel canister: no extended tie-rods required; Allows safe in-field service of piston packings, rod seals and bushings

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Piston Packing

Nitrile U Cups are standard; High and low temp optional

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Pedestal Mount

Carbon steel interface; Base plate is machined to suit valve requirement; Standard with dual adjustable stops; Optional accessories: Open and close limit switches; Lockouts; Travel stops

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Wear-Band

BZ-PTFE for high temp version

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Barrel Seals

Nitrile O-ring standard; High or low temp optional

Fail-Open

spring return actuator cutaway open
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Spring

Available in thrust up to 72,000 lbs.; Ground Flat for stability

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Flange Cover

Allows access to jam-nut to quickly and safely remove the canister for in-field service; Access for manual override available as an option

\

Self-Contained Spring Canister

Spring is pre-compressed and factory-sealed inside a welded steel canister: no extended tie-rods required; Allows safe in-field service of piston packings, rod seals and bushings

\

Piston Packing

Nitrile U Cups are standard; High and low temp optional

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Pedestal Mount

Carbon steel interface; Base plate is machined to suit valve requirement; Standard with dual adjustable stops; Optional accessories: Open and close limit switches; Lockouts; Travel stops

\

Wear-Band

BZ-PTFE for high temp version

\

Barrel Seals

Nitrile O-ring standard; High or low temp optional

SIL 3 Capable

The AS Series Spring-Return Pneumatic Valve Actuator’s SIL 3 capable rating is designed to provide reliable actuation solutions in critical applications without compromising the facilities Safety Instrumented Systems (SIS – compliant with IEC 61511/ISA 84).