Double Flanged High Performance Butterfly Valve, Brand Name : DESW

We offer double-flanged high-performance butterfly valve with worm gear operated stainless steel, ansi mark manufacturing standards: api, ansi, bs, din and jis sealing: resilience-seated (ptfe, rptfe, ppl, peek), metal-seated size range: from 2 to 60-inch pressure: 150, 300, 600lbs applicable temperature range: from -40 to 350˚c connections: wafer, lug type, double flanged, bw body materials: carbon steel, stainless steel, alloy steel, money, duplex stainless steel and other special material operating: lever, hand-wheel, pneumatic, electric and worm gear box

superior characteristics:
long service lifespan, the switch times can reach to 1 million the leakage class can reach to vi, totally 0 leakage seat seal and packing group is replaceable ultra low-operating torque bi-directional seal, in seal test, there is no bubble and leakage at both directions the valve materials can meet nice requirements and anti-corrosion high-speed and high-frequency working condition is available, for instance: air separation vacuum condition is available, class reach to 2 x 10-2 high-temperature oxygen and hydrogen working condition is available the fire-proof butterfly valve is designed according to api607.