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Valves & Actuation

Manual Plastic Butterfly Valves

Type-57P CPVC Butterfly Valves (2" - 8")

Asahi/America, Inc. introduces the CPVC body and disc Type-57P butterfly valve. This is a new material for Asahi/America’s Type-57, which features a durable injection molded gray color CPVC body and disc with EPDM or FKM seat and seals, and 316 stainless steel non-wetted stem. A redesigned, high visibility throttle positioning plate has been added, which features an opening degree legend in 10° increments, making accurate throttle positioning between 0° closed and 90° open possible. For high cycle life and smooth torque, seat/disc bushings have been fitted with dual O-ring seals. Additionally, two molded tag holes are positioned in the valve body for user-defined valve identification purposes. The CPVC Type-57P is available now in ANSI wafer style connection, sizes 2”, 3”, 4”, 6” and 8” in both lever and Plasgear™ operator. Additionally, the CPVC Type-57P can be actuated both electrically and pneumatically. Various manual accessories can be installed, as well


Ideal Applications Include:


2" – 8"

Body Materials:


Seat Materials:


Disc Materials:



  • CPVC Body with CPVC disc
  • 316SS Stem with full disc engagement
  • Full seat design eliminates gaskets
  • Seat overtightening prevention
  • Lockout-Tagout – lever handle molded padlock provision and 2-molded valve body tag holes
  • Highly visible O° to 90° position indicator with 19 fine adjustment locking positions
  • ISO 5211 F07 – F10 bolt circle on top flange
  • Polypropylene stem retainer
  • Spherical disc design
  • Non-wetted stem and body - Isolated from the media


Electric or Pneumatic


  • Pneumatically and electrically actuated with accessories
  • 2” Square operating nuts
  • Stem Extensions
  • Chain Operators
  • Manual Limit Switches
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