Ball check valve 

* O-ring seat provides leak-tight shutoff
* Internal design guides fl ow around or inside
spring, not through coils, when valve is open
* All models are tested in production to assure a
leak-tight body joint and seat
* Ball and poppet designs are available as
standard
* Ball type provides eff ective leak-tight closure
with minimum fl ow resistance
* Poppet models provide large fl ows with a
minimum of chatter and fl uctuation
* Valves are available with various cracking
pressures, from 1⁄3 to 25 psig (0 to 2 bar).
* 2-piece body permits interchangeability of end
connections
* Special High Tolerance NPT Thread
Applications
* Prevents reversed fl ow to protect solenoids,
regulators, and pumps
* Locks pressure in hydraulic cylinders
* Low pressure inline relief valve
* Vent valve to purge a system