A3219FPA Pneumatic Actuator
The A3219FPA Pneumatic Actuator is designed especially for use with the A3219FA Series Flanged Internal Valves. The diaphragm type A3219FPA provides a convenient means of opening and closing the valve from a remote location, using either air or nitrogen, on LP-Gas and NH3 transport trailers and stationary tanks.
Unit of Measure



  • Diaphragm type-no seals to leak.
  • Easily installed on internal valve "in-line,"
  • Utilizes standard brake actuator with time proven performance in heavy-duty truck/trailer applications.
  • Compatible with existing air interlock systems.
  • Operate with pressures of 50-150 psig.
  • Thermal fuse installed in actuator complies with DOT thermal protection requirements.


N/A Multiply flow rate by 0.94 to determine liquid butane flow and by 0.90 to determine liquid anhydrous ammonia flow.


Product Type

N/A 4" Flanged Internal Valves


N/A RegO