Poppet check valve LBS

threadedfor high flow ratesspring

ARGUS LBS excess flow check valves are installée! in Systems to prevent the médium escaping through line breaks. Under normal opération, they are open and installed near to a tank or cylinder to be protected. They close if excess flow speeds occur. Each excess flow check valve is rated for maximum flow speed. The excess flow check valve is held in the OPEN position by a compression spring. If the spring pre-tension is exceeded, the poppet valve moves in the valve seat and closes the line. Outside influences, e.g. sudden movements, impact on moving devices, installed position, can create axial forces and thereby changes in the closing volume. If the user is unable to prevent from such influences, System tests must be run.