793 Pneumatic Rotary Valve Positioner

Brand: Westlock

A force balance pneumatic positioner for quarter turn rotary actuators. Designed for direct mounting to all NAMUR and Crane Valves and Controls pneumatic actuators.
Features
  • Compact design - mounted directly and axially to the actuator stem by means of standard kit
  • Updated design provides improved features while maintaining original dimensions cam profile and product calibration
  • Captive fixings used throughout to prevent loss on site
  • High visibility Beacon and graduated indicator disc allows easy on-site monitoring
  • Conduit boss is integral to enclosure wall providing greater strength and reduced footprint
  • Indicator gives visual position of the final control element
  • Stable positioning characteristics provided for both small and large actuators
  • Action (direct or reverse) is easily reversed in the field by turning cam and reversing air connection
  • Usable for double-acting or single-acting service
  • Unaffected by normal supply pressure fluctuations
  • Integral electric limit switches option
  • Optional adapter and bracket kit for NAMUR actuators

Specifications

Air Consumption

  • 0.6 cfm in Balanced Condition with psi: 60 (kPa: 400, bar: 4) Supply

Approvals & Certifications

  • IEC

Conduit Connection

  • 1/2” NPT
  • M20

Control Functions Characteristics

  • Cam Characteristics: Linear

Cover Material

  • Polyester Coated Aluminum

Diaphragm Material

  • Nitrile Rubber

Enclosure, Body Material

  • Anodized Aluminum Alloy
  • Polyester Coated Aluminum

Environmental Protection

  • IP66

Materials of Construction

  • Valve Spool: Stainless Steel

Media

  • Compressed Air
  • Dry
  • Dust
  • Gas
  • Oil Free with 5 micron Filter Element to Inlet

Mounting

  • Direct Mounting
  • NAMUR Mounting Bracket

Mounting Position

  • Any Position / Orientation, No Limits

Pressure Range

  • Gauge (Instrument Air) - psi: 0 to 30 (kPa: 0 to 206.8, bar: 0 to 2) - 1 Off
  • Input Signal (Single Range) - psi: 3 to 15 (kPa: 20 to 100, bar: 0.2 to 1)

Supply Pressure

  • Gauge (Supply Air) - psi: 0 to 150 (kPa: 0 to 800, bar: 0 to 8) - 2 Off
  • psi: 30 to 100 (kPa: 200 to 800, bar: 2 to 8)

Switch Type

  • SPDT Mechanical Switches (10 A at 240 Vac)

Temperature Range

  • -20° to 70° C (-5° to 160° F)
show more