Ball type check valves are produced inthree sizes: 10-32, 1/8" NPT and 1/4"NPT. They are available in both brassand stainless steel and are suitable foruse with liquids or gases. Free flow occursin one direction only; reverse flowis prevented.All valve seats are metal to metal construction.Minor amounts of seat leakage can beexpected. See General Specifications.
Unit of Measure


N/A 303 SS

Ball Material

N/A 304 SS


N/A 0.190

Cracking Pressure

N/A 0 psig

Maximum Temperature

N/A 300 ºF

Maximum Operating Pressure Gauge

N/A 2000 psig

Additional wetted material

N/A Loctite 609 / 680

Connection A

N/A 1/4" NPT Male

Connection B

N/A 1/4" NPT Male

Seat Leakage

N/A 20 SSCM (max.) air flow at 25 psi differential

Width Across Flats (Hex)

N/A 9/16 in

Total Length

N/A 1.38 in

Air Flow at 100 psig

N/A 781 ft³/h

Water Flow at 100 psig

N/A 1.9 gpm


  • All metal construction
  • Long life operation
  • Choice of cracking pressure
  • High pressure capability