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Item 6 Of 14
Valve Actuator, force: Med, 4 - 11 psi


Direct acting, 8 in. diameter, medium force, valve actuator, spring range 4 -11 psi, 3/4 in. stroke, positive positioner with 5 psi range

  • Product Info
  • Literature


Pneumatic actuators provide proportional control of steam or hot or cold liquids in HVAC systems by operating V5011, V5013, and VGF valve assemblies. Replacement devices are available for older Honeywell actuators.


  • Rolling diaphragm for long life and low hysteresis.
  • Easily attached to valve.
  • Can be installed after piping valve.
  • Slide lock feature permits simple engagement to valve stem.
  • Direct- or reverse-action control.
  • Integral positive positioner relay provides positive positioning under varying load conditions.

Product Specifications

Dimensions (in.)
8 in. diameter x 11 1/8 in. high
Dimensions (mm)
203 mm diameter x 283 mm high
Maximum Safe Operating Pressure (psi)
25 psi
Maximum Safe Operating Pressure (kPa)
172 kPa
Temperature Range (F)
0 F to 140 F
Temperature Range (C)
-18 C to +60 C
311851-062 Stem Extension Assembly and Positive Positioner with 5 psi range
Used With
Valves with bonnet size 1-3/8 in. (35 mm)
Operating Humidity Range (% RH)
5 to 95% RH
Diameter (in.)
8 in.
Actuator Type
Fail Safe Mode
Spring Return
Stroke (in.)
3/4 in.
Stroke (mm)
19 mm
Actuator Force
Direct Acting
Spring Range (psi)
4 psi to 11 psi
Spring Range (kPa)
28 kPa to 76 kPa
Air connections
Pilot: Barbed fitting for 5/32 in. O.D. plastic tubing,Main: Barbed fitting for 1/4 in. O.D. plastic tubing