Our line of Fill and Vent Valves are simple 2-way, manual type valves for use in gas and liquid transfer applications. These Fill and Vent Valves work well with consumables such as argon, nitrogen, helium, oxygen, and many aviation fuels and are used for filling, venting or draining on-board pressurized storage reservoirs at pressures up to 10,000 psig [690 bar]. Standard wetted materials are stainless steel with internal FKM or EPDM o-ring. These 'Service Valves' can also be supplied with various threaded connections and an integral Schrader style valve core is available for low pressure sealing redundancy.
Individualized threaded interfaces prevent the mixing of incompatible media. Each type of Fill and Vent Valve will couple only with a corresponding mating swivel probe coupling. During fill & vent operations, coupled sealing is through a tapered face or an internal probe.
Cold-gas storage systems must remain leak-tight for extended periods of time. Our valves are capable of gas-tight, hermetic sealing with absolutely zero internal and external leakage when closed. Precise match-tapered metal-to-metal seats with a compliant metal coating provide the primary seal. The valve is opened and closed by rotating the upper captive hex nut. Elements of the valve are assembled through electron beam welding to ensure uniformity and structural integrity.
Have an application for our Fill and Vent Valves? Download a data sheet, then contact South Bend Controls.