VR Series

The VR Valve allows air to enter a system when a negative pressure occurs, but prevents air from being released under postive conditions, except through an optional small orifice Air Release Valve.

VR Series Overview
Nominal Inside Diameter 3″-36″ Sizes Available
Construction Materials Body: Ductile Iron (ASTM A536)
Disc: Cast Stainless Steel (ASTM T316)
Bolts/Nuts: Bolt: Steel (ASTM A307) Nut: Steel (ASTM A563)
Seat: Buna-N Rubber
Bushing: Stainless Steel (ASTM T316)
Pressure Ratings 20-150 psi (stand.)
2-40 psi (Low)
151-300 psi (High)

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