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WISION can now offer our customers,in the semiconductor industry, high quality Ultra High Purity Diaphragm Cylinder Valve at a competitive pricing. SPECIFICATION: Working pressure: 210bar (3000psi) Fluid Media: Industrial gas and special gases including toxic and corrosive gases and oxygen Nominal Bore: 4mm Cv: 0.3 Operating temperature: -20 to +65°C Outboard (gland) Leak rate: less than 1x10-9 mbar l/s (200bar He) Inlet/Outlet (seat) Leak rate: less than 1x10-8 mbar l/s (200bar He) MATERIALS OF CONSTRUCTION: BODY -brsaa , 304 , 316, 316L VAR stainless steel, Hastelloy C22, Monel or Nickel SEAT - PCTFE, Kynar 740, Vespel SP21 or Zytel 103 (Nylon) DIAPHRAGM - Elgiloy No lubrication is used in the flow path and the seat materials are chosen for minimal gas absorption. Please contact us for advice on material selection. PORT OPTIONS: Standards: GB , JIS, Inlet DIN 477, EN 629; Outlet DIN 477, BS 341, ISO 10692-1 US Standards: Inlet NGT: Outlet CGA, ISO 10692-1 Japanese Standards: Inlet and Outlet JIS Any combination of port configurations can be supplied on request. cylinder valve,lpg cylinder valve,co2 cylinder valve,valve for lpg cylinder,high pressure cylinder valve,gas cylinder valve,cng filling valve_cng cylinder valve,oxygen cylinder valve,nitrogen cylinder valves,pneumatic valves cylinders,chlorine cylinder valve, 4 valve cylinder head,valving machine for cylinder valve,air cylinder valve,lpg cylinder valves,co2 valve and cylinder,cylinder heads valve assembly,refrigerant cylinder valve,pneumatic cylinder valve,valve for cylinder,cng cylinder valve,valves for gas cylinders,valve cylinders,acetylene cylinder valve