AR Series

Similar in many ways to the Midget Series, the AR Series comes with one orifice rated for 300 PSIG. A more economical option, replacement parts are not offered.

AR Series Overview
Nominal Inside Diameter 1″-6″ 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: Buna-N Rubber
Paint: Tnemec 141
Pressure Ratings 20-150 psi (stand.)
2-40 psi (Low)
151-300 psi (High)


Crispin Valve offers a wide variety of special materials for air valves that may not be listed. If your project may need such materials please feel free to contact our Sales/ Customer Service team for any inquiries you may have!