ASCO P321 Series Air-Operated Valves

Brand: ASCO

The ASCO P321 Series are 3-way pneumatic operator valves designed to provide long life handling lubricated air. Variations in pilot air pressure do not affect the valves´ operation.
  • Normally closed brass body construction with NBR seating.

  • Unique sealing member isolates pilot air pressure from mainline fluid.

  • Handles fluids up to 200°F (92° C).

  • Mountable in any position for installation flexibility.
  • Specifications


    Body Material

    • Brass


    • From 0.5 Cv to 1.0 Cv


    • 3-Way - 3/2 Normally Closed

    Maximum Differential, Maximum Operating Pressure

    • Vacuum to 150 psig


    • Air, Inert Gas, Light Oil, Water

    Operating Environment

    • Indoor, Outdoor

    Pipe / Port Size

    • 1/4, 3/8

    Port Type

    • Female NPT

    Valve Actuation

    • Pneumatic - Air Pilot


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