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Manufacturer/Factory
Establishment:
2012
R&D Capacity:
ODM, OEM, Other
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Flow Sensor, Ultrasonic Flow Sensor, Portable Flow Meter manufacturer / supplier in China, offering Hot! ! High Accutacy Portabl Ultrasonic Flow Sensor, Electric / Pneumatic Ball Valve Switch (on-off) , Control Valve (4~20mA control) , Q641 Pneumatic on-off Ball Valve (with solenoid valve, limit switch), Gas Flow Controller-Gas Flow Measurement-Digital Gas Flow Meter and so on.

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Supplier Homepage Industrial Equipment & Components Valve Safety Valve China Pressure Relief Valve Relief Valve Safety Valve

China Pressure Relief Valve Relief Valve Safety Valve

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Min. Order / Reference FOB Price
1 Piece US $26.00/ Piece
Local Area: Xingtai, Hebei, China
R&D Capacity: OEM, ODM, Other
Payment Terms: LC, T/T, PayPal
Certification: ISO, CE
Temperature: High Temperature
Connection: Flange or Thread
Pressure reducing valve/safety valveApplication 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.Demonstrational & Teaching Utensil 25 0.25-0.4 0.4-0.6 0.6-0.8 0.8-1.0 1.0-1.31.3-1.62.5> 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 size
PN 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 grade1.6Car Safety 1.61.64.04.04.0/16.016.0Table6Safety valve's Open Type
Low liftFull liftInlet DNthe same as DNOutlet DNthe same as DNLarger than DN by one degree or more
4.Performance specification(as per GB12243-2005)
MediumShell-test pressure
Ps(MPa)Seal test pressure
PM(MPa)Displace pressure
△P(MPa)Relieving pressure
Pp (MPa)Lift height
H(mm)steam1.5PN
90% Pk or the minimum return pressure, Pk≤0.4, it's ≤ 0.04
Pk >0.4, it's ≤ 0.1Pk
≤1.03Pkfull lift≥1/4do
low lift≥1/20doAir or other gasWhen Pk<0.3, it's Pk-0.03;
When Pk≥0.3, it's 90%PkPk≤0.2, it's ≤ 0.03
Pk >0.2, it's ≤ 0.15Pk≤1.1Pkfull lift≥1/4dolow lift≥1/20doWater or other liquidPk≤0.3, it's ≤ 0.06
Pk >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≈H16
A21- 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/A21F
KA21Y-C materialA21W-P/A21F-P
KA21Y-P materialA21Y-R materialcoupling201Cr18Ni9Ti1Cr18Ni12Mo2Ticoupling nut352Cr131Cr18Ni9Tiseat351Cr18Ni9Ti1Cr18Ni12Mo2Tibody2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Tidisc2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE1Cr18Ni12Mo2TiSpring seat2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Tispring50CrVA50CrVAfluorinePower Tools 50CrVA fluorineLocknut0235-A2Cr131Cr18Ni9TiSpring guide pad2Cr131Cr18Ni9Ti1Cr18Ni12Mo2TiAdjusting nut0235-A2Cr131Cr18Ni12Mo2TiSeal surface material
Y type surfacing Co-based hard alloyW type surfacing D 507 F type PTFE