Mounted vertically or horizontally, these valves are designed to close before the pump stops, preventing flow reversal and eliminating water hammer and system surges. ANSI Class 150 & Class 300.

GC Series Overview
Nominal Inside Diameter 2 ½”-36″ Sizes Available
Construction Materials Body: Cast Iron (ASTM A126 Class B)
*Optional Ductile Iron (ASTM A536 GR65-45-12)
Disc: Bronze (ASTM B62)
*Optional Stainless Steel (ASTM A743, Type 316)
Bolts/Nuts: Stainless Steel 18-8
Seat Ring: Stainless Steel (ASTM B62), with BUNA-N or VITON available
*Optional Stainless Steel (ASTM A743, Type 316)
Spring: Stainless Steel (ASTM A313)
*Optional Stainless Steel (ASTM A276, T316)
Bushing: Bronze (ASTM B584)
*Optional Stainless Steel (ASTM A276, Type 316)
Paint: Tnemec 141
Pressure Rating Class 150 or Class 250

Many Crispin Valves are available with special materials that may not be listed. Please contact the factory to inquire about custom orders.