PL & P Series

Pressure Air Valves are used for the venting of accumulating air while the system is pressurized. Small amounts of air is exhausted during the entire pumping cycle. Sized by Pressure Range.

PL & P Series Overview
Nominal Inside Diameter 1″-4″ Sizes Available
Construction Materials Body: Cast Iron (ASTM A126 Class B)
Trim/Float: Stainless Steel (ASTM A240)
Bolts/Nuts: Bolt: Steel (ASTM A307) Nut: Steel (ASTM A563)
2 1/2″ – 4″ Nut: Steel (ASTM A307)
Seat: PVC (ASTM 1784)
Paint: Tnemec 141
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.