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China, Chinese Boiler Safety Valve for Steam, Gas, Air, Water Safety Valves, Control Valves1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
ValveSafety ValveGasAirWater Safety ValvesControl ValvesPressure Relief ValveRelief Valve
Hebei Xukang Meter Manufacturing Co., Ltd.
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Product Description Safety valve/Pressure relieving valve Application A21H is applicable to equipment or piping for air, ammonia,oil gas and other medium with operating temperature less than 200 oC. A21W is applicable to equipment or piping for corrosive gas or liquid and other medium with operating temperature less than 200 oC. 1Fis applicable to equipment or piping for LPG,oil gas and other medium with operating temperature less than 200 oC as over pressure protection. When Pressure exceeds the allowable value, the valve automatically open, and then the full amount is released; when the pressure reduced to the specified value, the valve automatically shut down to ensure the safe operation of equipment. 2. Set pressure groupingPN( nominal pressure) Set Pressure grade1.60.06-0.1 0.1-0.16 0.16-0.25 0.25-0.4 0.4-0.6 0.6-0.8 0.8-1.0 1.0-1.3 1.3-1.62.5> 1.3-1.6 > 1.6-2.0 > 2.0-2.54.0> 1.3- 1.6 > 1.6- 2.0 > 2.0- 2.5 > 2.5-3.2 > 3.2- 4.06.4> 2.5- 3.2 > 3.2- 4.0 > 4.0- 5.0 > 5.0-6.4 10.0> 4.0- 5.0 > 5.0- 6.4 > 6.4- 8.0 > 8.0-10 16.0> 10-13 > 13-16 32.0> 16-19 > 19-22 > 22-25 > 25-29 > 29-32 3. Inlet and outlet flange sizePN refer to Table 5; inlet and outlet DN refer to Table 6 ( MPa) Table 5PN( nominal pressure)1.62.54.06.410.016.032.0Inlet flange pressure grade1.62.54.06.410.016.032.0Outlet flange pressure grade1.61.61.64.04.04.0/16.016.0Table6Safety valve's Open Type Low liftFull liftInlet DN the same as DNOutlet DNthe same as DNLarger than DN by one degree or more 4. Performance specification(as per GB12243-2005) MediumShell-test pressurePs(MPa)Seal test pressurePM(MPa)Displace pressure △P(MPa)Relieving pressure Pp (MPa)Lift heightH(mm)steam1.5PN 90% Pk or the minimum return pressure, Pk≤0.4, it's ≤ 0.04Pk >0.4, it's ≤ 0.1Pk ≤1.03Pkfull lift≥1/4do low lift≥1/20 doAir or other gasWhen Pk<0.3, it's Pk-0.03;When Pk≥0.3, it's 90%PkPk≤0.2, it's ≤ 0.03Pk >0.2, it's ≤ 0.15Pk≤1.1Pkfull lift≥1/4dolow lift≥1/20doWater or other liquidPk≤0.3, it's ≤ 0.06Pk >0.3, it's ≤ 0.2Pk≤1.2Pkfull lift≥1/4dolow lift≥1/20doNote: Pk is set pressure, do is orifice diameter.5. Main dimension( mm) Type(DN)dodDoGD1Lh1hM≈H 16A21- 25 40151013201/2''30365782M27*1.566201418253/4''35416090M33*1.568251723311''425270105M39*1.5105A21- 64 100151015251''425270105M39*1.5105201015251''425270105M39*1.5105251215251''425270105M39*1.5105A21- 160 3201581020M33*2465270105M30*21052081525M33*2465270105M30*21052581828M33*2465270105M30*2105 6. Main parts materialParts nameA21H-C/A21FKA21Y-C materialA21W-P/A21F-P KA21Y-P materialA21Y-R materialcoupling201Cr18Ni9Ti1Cr18Ni12Mo2Ticoupling nut352Cr131Cr18Ni9Tiseat351Cr18Ni9Ti1Cr18Ni12Mo2Tibody2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Tidisc2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE1Cr18Ni12Mo2TiSpring seat2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Tispring50CrVA50CrVAfluorine50CrVA fluorineLocknut0235-A2Cr131Cr18Ni9TiSpring guide pad2Cr131Cr18Ni9Ti1Cr18Ni12Mo2TiAdjusting nut0235-A2Cr131Cr18Ni12Mo2TiSeal surface material Y type surfacing Co-based hard alloyW type surfacing D 507 F type PTFEPackaging & Shipping Certifications
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