AT Series

Pneumatic Modulating
Valve Actuator

Pressure Rating: 150 psi
Bore Sizes: 5” to 42”

Pneumatic modulating control valve actuator with integral position transducer.

Temperature for Pneumatic Control Valve Actuator
AT Series: Pneumatic Control Valve Actuator

One powerful control valve with a self-contained transducer.

Plug in the AT Series.

Complete the form to get a quote within 24hrs.



SIL 3 Logo

See how the AT System works

View our video to learn how our AT Series will maximize your operation.  A truly amazing control valve which solves factory linkage arm issues with in one simple replacement.

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AT Series Features

  • Compact design with self-contained transducer
  • Modular transducer for easy installation
  • Switchable output – analog or digital
  • Dual- or triple-seal gland
  • High-strength carbon fiber barrel
  • Vibration resistance: up to 10Gs at 2000Hz
  • Made-to-order stroke lengths
  • SIL 3 Capable (IEC 61508)



Pivot Mounts now Available

Pivot Mount for Pneumatic Control Valve Actuator

AT Series options:

 Steel

 Stainless steel

 Dart valve actuator

 Pivot mount

Design and Materials

AT Series Cutaway
Transducer module AT Series
GT3 Gland

Standard Gland

Nitrile gland packing and urethane wiper are standard; low-temp option is available

GT3 Gland

Triple-seal gland with dual wipers. Rugged metallic scrapper and urethane double-acting wiper deflect contamination away from the rod seal for long service life

Compatible Positioner Brands

Stainless Steel Pneumatic Control Valve Actuator - AT Series
Positioner Brands

Remote Mounts

Digital positioners mounted remotely in a cabinet are ideal for harsh environments and any application with difficult or limited access to the actuator.

Cabinets available: Nema 4X, 9X and explosion-proof, manual override customized to suit your application

Direct Mounts

  • Direct mount digital positioner
  • NEMA 4X/IP66
  • Fail/close or Open Upon Loss of Power
  • Optional Fail Last Module
  • Communication options:
    4-20 mA
    HART
    Profibus PA
    Foundation Fieldbus
    Intrinsically safe version available


Add-Ons

Volume Booster

Volume Booster

Volume boosters are recommended with larger modulating actuators for smooth operations. Typically required for 10″ bore and above. Booster can be installed either directly on the AT or in a remote panel.

GT3 Gland for Harsh Environments

GT3 Gland

Triple-seal gland with dual wipers. Rugged metallic scrapper and urethane double-acting wiper deflect contamination away from the rod seal for long service life.

Options:

Low Temp

Cast Iron construction for applications where yellow metals are not allowed

Mounting Kits: ISO, MSS & Customized Patterns Available

Mounting Kits

Cowan valve mounting kits can be designed for any linear valve. Mounting kits available in steel and stainless steel construction.

Anti-Rotation Torque Arm:

Maintains constant alignment between valve stem and cylinder piston-rod. Compatible with rotary type switch boxes and beacons.

Field-Adjustable Travel Stops:
To limit stroke for position-seated or limited-travel applications. Ensures valve reaches positive sealing every time without damage to valve internals.

Remote Mount

Control Panel

Digital positioners mounted remotely in a cabinet are ideal for harsh environments and any application with difficult or limited access to the actuator.

Cabinets available: NEMA 4/4X or for hazardous areas.

Manual override customized to suit your application.

Direct Mount

Direct Mount: PMV

No mechanical linkage requirement gives you the flexibility to mount directly on the actuator or the valve in any orientation.

In Market Example

150 psi Pneumatic Valve Actuator with integrated position transducerFully enclosed feedback unit is protected from damage. No exposed transducer or linkage arms. Excellent for flotation systems

In Market Example: Pneumatic Control Valve Actuator

The AT Series is yours in a few clicks.

Complete the form to receive a quote within 24 hrs.