Air System Check Valves
Air system check valves are available as single or double check valves.
Single check valves allow air to pass from a single source to its destination, but they won't let the air travel in the opposite direction.
Double check valves have two supply ports and one delivery port. The supply ports are connected to two different air sources, and the source with the higher air pressure sends air to the delivery port. Double check valves with a shuttle or disc should be installed horizontally.
Bendix 280809N DC-4 Double Check Valve, Three Female 3/8" NPT Ports & One Male 3/8" NPT Port
Bendix K108143 Stop Light Switch Kit with Double Check Valve, Replaces Obsolete 286543
Bendix 800370 SC-3 Single Check Valve, 1/2" NPT Female Ports
PTP 800372 Single Check Valve, 1/2" NPT Ports, Female Inlet, Male Outlet
PTP 800373 Single Check Valve, 3/8" NPT Ports, Female Inlet, Male Outlet
Bendix 800374 SC-3 Single Check Valve - 1/4" NPT Female Inlet, 1/8" NPT Male Outlet
Bendix 800375 SC-3 Single Check Valve, 1/4" NPT Ports, Female Inlet, Male Outlet