Diaphragm & Gauge Valves / ManifoldsA valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. TVDCLow Pressure Manual Diaphragm Valves (Weld Tee & Valve Type) Catalog Spec. Working Pressure 145psig(10bar) Working Temperature: -10~80°C (-23~176°F) Material: SS316L, SS316L VAR DCR, Dk-Lok, TBW 1/4″~3/4″ Size Minimal Particle Generation Moisture ContributionBrief Description Maximum flow & Compact designed inner capacity. Minimal contributions of moisture, Oxygen and Hydrocarbon, Minimal particle generation. DK-Lok’s own electropolished. D.I water cleaned, assembled, tested & packaged in a certified clean room. Elgiloy diaphragm material with strong durability as well as corrosion resistance for long cycle life. PCTFE seat material with remarkable chemical & thermal resistance.