3" Type 57 Butterfly Valve with FKM Seat

Item #: 21311
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These Type 57 Valves have a spherical disc design that offers increased Cv, ultimate sealing and high cycle life.

  • PVC body
  • Polpropylene disc
  • FKM seals
  • 316/403 stainless steel shaft
  • Non-wetted shaft has full engagement over the entire length of the disc
  • Superior corrosion resistance
  • Flange stopper prevents over-compressing liners due to improper installation
  • ISO bolt circle on top flange - no body or stem modifications required for accessories
  • Maximum pressure: 150 psi
  • NSF 61 certified

Item Information

Item Number:21311
Catalog Page Number:P-422
Manufacturer Part #:173731030

Tech Specs

Weight: 4 lbs

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