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