Single Ball Check Valve - 35 psi Nominal Cracking Pressure, 1/8 in NPSF (F) x 1/8 in NPTF (M), Steel, 5,000 psi Single Ball Steel Check Valves are designed for use in hydraulic or lubrication systems with pressures up to 5000 PSI. Available in two models for use as inlet or outlet check valves. A symbol stamped on the body indicates flow direction. The standard type ball and spring principle is used. Features• Positive seal prevents leakage and backflow• Compact and easy to install Application Compressor Equipment Ball Material Steel Body Material Steel Compatible Material Oil, Grease Inlet Size (in) 1/8 Inlet Thread Gender Female Inlet Thread Type NPT Maximum Working Pressure (MPa) 34.5 Maximum Working Pressure (psi) 5000 Number of Balls Single Ball Outlet Size (in) 1/8 Outlet Thread Gender Female Outlet Thread Type NPS Type Check Valve