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ZZZW self operated differential (micro) pressure regulating valve
Caliber range: DN20-100mm Pressure range: PN0.10-1.0MPa Applicable temperature: ≤ 80 Product application: ZZYW self operated differential (micro) pres
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1、 Product Features
ZZZW self operated differential (micro) pressure regulating valveIt is an actuator product that requires external energy and can be used for nominal pressures of 0.1 and 1.0 MPa. Micro differential pressure can be adjusted in stages, ranging from 0.5 to 100KPa. It has a wide range of applications and can be used in industrial combustion systems to control the flow ratio of two materials, such as gas and air, to achieve ideal combustion. Used for sealing oil system of hydrogen cooled generator set, controlling the pressure difference between sealing oil, gas and hydrogen to ensure reliable sealing. When the low-pressure end of the differential pressure valve is open to the atmosphere, it isMicro pressure valve. Note: 1. The nominal pressure for a single seat is 0.10MPa, and for a double seat it is 1.0MPa
2. The range of differential pressure regulation for two seats is 36-44... 88-100KPa2、 Self operated differential (micro) pressurecontrol valveMain component materials
阀 体： HT200～450、ZG1Cr18Ni9Ti、ZGCR18Ni12Mo2Ti
阀 芯： Cr18Ni12Mo2Ti、1Cr18Ni9Ti
阀 座： Cr18Ni12Mo2Ti、1Cr18Ni9Ti
弹 簧： 60Si12Mn、1Cr18Ni9Ti、50CrVA
Bellows: 1Cr18Ni9Ti
Diaphragm: Nitrile rubber, oil resistant rubber, fluororubber
Membrane cover: A3, 1Cr18Ni9Ti3、 Main technical parameters
Nominal diameter DN (mm)20253240506580100Rated flow coefficient KvSingle seat81120325080100160double seat5383Rated travel L (mm)
68101520Nominal pressure PN (MPa)0.10, 1.0Differential pressure regulation range (kPa)0.5-5.5, 5-10, 9-14, 13-19, 18-24, 22-28
26-33, 31-38, 36-44, 42-51, 49-58
56-66, 64-78, 76-90, 88-100Medium temperature (%)≤80Adjustment accuracy (%)≤10Allowable leakage amount
（1/h）Single seat10-4 x rated capacity of valve (Level IV)double seat5 × 10-3 × rated capacity of valve (Class II)
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