Teach you to know the valve temperature

The temperature of the valve is determined by the material used to make the valve. Valve temperature commonly used materials are as follows: Valve temperature gray iron valve -15 ~ 250 â„ƒ malleable iron valve -15 ~ 250 â„ƒ ductile iron valve -30 ~ 350 â„ƒ high nickel cast iron valve maximum temperature of 400 â„ƒ carbon steel valve -29 ~ 450 â„ƒ, recommended temperature in JB / T3595-93 standard t 1Cr5Mo, alloy steel valve maximum temperature is 550 â„ƒ 12Cr1MoVA, alloy steel valve maximum temperature is 570 â„ƒ 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti stainless steel valve -196 ~ 600 â„ƒ copper alloy valve -273 ~ 250 â„ƒ Plastic valve (nylon) Maximum temperature 100 â„ƒ Plastic valve (chlorinated polyether) Maximum temperature 100 â„ƒ Plastic valve (PVC) Maximum temperature 60 â„ƒ Plastic valve (polychlorotrifluoroethylene) 60 ~ 120 â„ƒ Plastic Valve (Teflon) -180 ~ 150 â„ƒ Plastic Valve (Natural Rubber Diaphragm Valve) Maximum Operating Temperature 60 â„ƒ Plastic Valve (NBR, Neoprene Diaphragm Valve) Maximum Operating Temperature 80 â„ƒ Plastic Valve (Viton diaphragm valve) The maximum temperature of 200 â„ƒ Valve lining with rubber, plastic, with rubber, plastic temperature resistance . Ceramic valve, because of its acute temperature degeneration is poor, generally used for working conditions below 150 â„ƒ. Recently there is a super-performance ceramic valve, capable of high temperatures below 1000 â„ƒ. Glass valves, temperature acute degeneration is poor, generally used for working conditions below 90 â„ƒ. Enamel valves, temperature resistance by the seal material restrictions, the maximum temperature does not exceed 150 â„ƒ. Valve body materials are: C carbon steel, I 1Cr5Mo chromium molybdenum steel, H Cr13 stainless steel, K malleable iron, L aluminum alloy, P 0Cr18Ni9 stainless steel, PL 00Cr19Ni10 stainless steel, Q ductile iron, R 0Cr12Ni12Mo2 stainless steel, RL 00Cr17Ni14Mo2 Stainless steel, S plastic, T copper and copper alloy, Ti titanium and titanium alloy, V chromium molybdenum vanadium steel, Z gray iron.

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