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Pneumatic Actuator (Rack & Pinion / Scotch Yoke)

Double-acting and spring-return, NAMUR interface.

Actuators & Control Valves Series

Pneumatic Actuator (Rack & Pinion / Scotch Yoke)

Rack-and-pinion actuators serve compact quarter-turn valves; scotch-yoke units deliver high breakout torque for large ball and butterfly valves. Double-acting or spring-return fail-safe, NAMUR interface throughout.

As part of the VTXFLOW actuators & control valves range, every pneumatic actuator (rack & pinion / scotch yoke) is produced under our certified quality system — from in-house casting and CNC precision machining to 100% pressure and seat-tightness testing before shipment, with EN 10204 3.1 material certificates supplied.

  • Double acting & spring return (fail open/close)
  • Rack & pinion to 8,000 N·m; scotch yoke to 500,000 N·m
  • NAMUR VDI/VDE 3845 accessory interface
  • Anodized / epoxy / SS housings
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Pneumatic Actuator (Rack & Pinion / Scotch Yoke)
Pneumatic Actuator (Rack & Pinion / Scotch Yoke) — VTXFLOW Actuators & Control Valves Series

Technical Specifications

Actuator TorqueUp to 500,000 N·m (scotch yoke)
Power Supply24 VDC, 220/380 VAC, 50/60 Hz; air 3–8 bar
Control SignalOn-off, 4–20 mA modulating, Modbus/HART options
ProtectionIP65 / IP67, Ex d IIB T4 explosion-proof
MountingISO 5211 / DIN 3337 standard interface

Typical Applications

Process automationPower plant control loopsWater treatment SCADA systemsRemote pipeline stationsOEM skid packages

How to Order — What to Specify

  1. Valve type, size and pressure class
  2. Actuator type: electric or pneumatic
  3. Power supply (VAC/VDC) or air pressure available
  4. Control mode: on-off or modulating 4–20 mA
  5. Fail action: fail-open, fail-close or fail-last
  6. Enclosure: IP65/IP67 or explosion-proof Ex d
  7. Accessories: positioner, limit switch box, solenoid, AFR
  8. Bus options: Modbus / HART

Every pneumatic actuator (rack & pinion / scotch yoke) is shell and seat tested to API 598 / ISO 5208 before shipment and delivered with EN 10204 3.1 material certificates. PMI, NDE and third-party inspection (SGS / BV) are available on request.

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Interested in the pneumatic actuator (rack & pinion / scotch yoke)? Tell us your size, pressure class, material, standard and quantity — our engineers respond within 24 hours.

Your inquiry goes directly to our sales team. You can also email us at SALES@VTXFLOW.COM.