NPT Check Valves

NPT check valves with metal seat option for cryogenic service or with soft seat option for leak free operation in gas service. 

Features:

One directional flow indicated by arrow on body
Large Cv for high flow capability and low pressure drop 
Working temperature range
-320F to +165F for metal seats
-20F to +165F for soft seats 
 

Matierals 

Body (B and BL suffix) - ASTM B16 Brass
Body ( SS and SSL suffix) - 203 Stainless Steel 
Spring - Stainless Steel 
Piston - Stainless Steel 
O-Ring (soft seat option units only) - Viton
Metal Seat - 303 Stainless Steel