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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
Brand
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)
