Lever/Wt, Lever/Spring, & Air Cushion

The SWL provides an AWWA C-508-1 solution for check valve applications, including sewage and slurry.

SWL Series Overview
Nominal Inside Diameter 2″-36″ Sizes Available
Construction Materials Body: Ductile Iron (ASTM A536 GR 65-45-12)
Disc: Ductile Iron (ASTM A536 GR 65-45-12)
Bolts/Nuts: Bolt: Steel (ASTM A307) Nut: Steel (ASTM A563)
Seat: Stainless Steel (ASTM A240) & Buna-N Rubber
Paint: Primer Standard–Tnemec 141 Optional
Pressure Rating 250 psi Max. Oper. Press.

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