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 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.
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
Thrust: up to 72,000 lbs
Bore Size: 6″-42″
Configuration: Single-Stage and Tandem
Stroke Range: Up to 12″
Compact Model Available
Pressure Rating: 150 psi
Welding Certified to CSA 47.1 Division 2
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
Gate Valve
Globe Valve
Pinch Valve
AS Series Features
Interactive Icons
Roll Over the icons to learn more
Fail-Closed
Spring
Available in thrust up to 72,000 lbs.; Ground Flat for stability
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
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
Fail-Open
Spring
Available in thrust up to 72,000 lbs.; Ground Flat for stability
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
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).