... : Flange 3.Can relieve pressure automatically. 4.Long service life. A41H Spring Low Lift Flange Pressure Safety Valve:Materials of main ... -4001Cr18Ni9Ti1Cr18Ni9Ti Sealing surface of seat and disc Co Depositing stellite A41H Spring Low Flange Safety Valve
DN20-400 PN1.6-10Mpa temperture: less than 200C medium: air, oil gas, liquid Spring closing relief valveDN20-400PN1.6-10Mpatemperture: less than 200Cmedium: air, oil gas, liquid spring closing relief valve
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