Single Check Valve - 1/8" To 4" Sizes, Up To 300 Psi | Efficient Fluid Supply Shutdown With No Valving And Exhaust Feature

They are used for connecting portable air tools and equipments to air lines / hydraulic lines.

They are available from 1/8", 1/2", 3/4", 1" 1", 2", 3", 4" sizes, upto a pressure of 300 psi ( 21 kg/cm2) for Single check for valve couplings and 200 kg/cm2 for double check valve couplings.

In case of Single check for valve couplings, the Coupler should be installed on the supply end of the line to shut off the fluid supply when coupling is disconnected. The adopter has no valving & upon disconnection exhausts the downstream media. Even in liquid lines, this would not be mechanically detrimental unless fluid loss would interface with a holding circuit or contaminates the area around it.