Abstract: A valve insert is used to be mounted at least partially the outlet of a cylinder valve of a cylinder to allow a fluid to pass through the valve when a fluid connector is at least partially connected to the valve insert and/or the cylinder valve. The valve insert includes a body member adapted to be mount at least partially in the outlet of the cylinder valve; a valve member that moves in the body member, a docking member on the valve member adapted to contact at least a portion of the fluid connector and adapted to form a sealing relationship with the fluid connector; and a seal member that is movable by the valve member between an opened and a closed positioned.

Abstract: A coupling for connecting a cylinder valve on an LPG tank to the inlet of a pressure regulator for gas consuming equipment comprises a nipple having an upstream end for connection with the cylinder valve and a downstream end for connection with the pressure regulator, and a plastic coupling nut for connecting the nipple to the cylinder valve. The end wall of the coupling nut has a metal heat transfer washer on the inner side thereof, and a pressure responsive flexible shutoff valve plate is provided in the nipple passageway. The shutoff valve plate closes the passageway in response to a pressure differential thereacross of no more than 15 psi, and the end wall of the coupling nut and the heat transfer washer are responsive to a temperature of between 240° F. and 300° F. to release the nipple for displacement away from the cylinder valve in the direction downstream of the nipple.

Abstract: A valve insert for a cylinder valve for connection an LPG tank to a gas consuming appliance comprises a body member mounted in the outlet end of the cylinder valve and a valve element slidable in the body member and cooperable therewith to control the flow of gas from the tank to the appliance. A quad ring between the valve body and valve element seals against gas leakage therebetween and provides a lubricant reservoir for lubricating the surfaces thereof, and a wiper ring downstream of the quad ring cleans the surfaces and precludes the ingress of foreign matter to the area of the gas sealing quad ring.

Abstract: A diaphragm operated pressure regulating valve for connection between a source of gas under pressure and the point of use comprises an inlet port having an axis, a valve element coaxial with the inlet port and a coaxial ball and cam valve element actuating arrangement controlled by the diaphragm which is transverse to and coaxial with the inlet port.

Abstract: A liquid level responsive shut-off valve for filling a tank, such as a toilet water tank, comprises a valve housing having an inlet passageway for connection to a source of liquid under pressure, an outlet passageway opening into the tank, and a diaphragm actuated valve element having open and closed positions respectively opening and closing the inlet passageway to the flow of liquid therethrough to said outlet passageway and the tank. A float and lever operated ball valve element controls operation of the diaphragm actuated valve element in accordance with the liquid level in the tank.

Abstract: The pivotal lever arm of a diaphragm-actuated fluid pressure regulator is provided with a damping spring arrangement for frictionally restraining pivotal displacement of the lever arm in response to turbulent flow of gas through the valve.