high pressure reducing valve (PRV)

High Pressure Reducing Valve (PRV), PN 1.6-2.5 MPa

Detail Information

  • high pressure reducing valve Feature

    High pressure reducing valve is for high pressure medium design , the max. pressure is PN16 Mpa,900LB,if higher pressure for Stainless steel high pressure reducing valve ,need consult our engineer. Stainless steel high pressure reducing valve belongs to pilot piston type pressure reducing valve.Stainless steel high pressure reducing valve is composed of main valve and pilot valve.Main valve consists of seat, disc, piston, spring and other components.The guide valve mainly consists of seat, disc, diaphragm, spring, adjusting spring and other parts.The outlet pressure is set by adjusting the spring ,which is transfer the outlet pressure changes according to the diaphragm sensor, and the piston is driven through the opening and closing of the guide valve to adjust the flow area of the main valve throttling position, so as to realize the pressure reducing and pressure stabilizing function.
     
    Stainless steel high pressure reducing valve is mainly used for gas pipeline, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.

  • high pressure reducing valve technical parameter

    Nominal pressure(MPa) 1.6 2.5 4.0 6.4 10.0 16.0
    Shell test pressure(MPa) 2.4 3.75 6.0 9.6 15.0 24
    Seal test pressure(MPa) 1.6 2.5 4.0 6.4 10.0 16.0
    Max. Inlet pressure(MPa) 1.6 2.5 4.0 6.4 10.0 16.0
    Outlet pressure range(MPa) 0.1-1.0 0.1-1.6 0.1-2.5 0.5-3.5 0.5-35 0.5-45
    Pressure characteristic deviation(MPa)△P2P GB12246-1989
     Flow characteristic deviation(MPa)△P2G GB12246-1989
    Max. Pressure difference(MPa) 0.15 0.15 0.2 0.4 0.8 1.0
    Leakage Level GB12245-1989 (Soft seat  is zero leakage)
    Note:Shell test does not include diaphragm and roof.
  • high pressure reducing valve Flow coefficient

    DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500
    Cv 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500
  • high pressure reducing valve main material

    Part Name Material
    Body/Bonnet/End bonnet WCB/CF8/CF8M
    Seat 2Cr13/304/316
    Cylinder sleeve 2Cr13
    Piston 2Cr13/Copper
    Piston ring Cast iron/stainless steel
    Guide valve seat / stem 2Cr13
    Diaphragm 1Cr18Ni9Ti
    Main valve spring 1Cr18Ni9Ti
    Guide valve sprig 50CrVA
    Regulating spring 60Si12Mn
  • high pressure reducing valve outline dimension (PN10-40)

    DN Outline dimension (PN1.6-4.0Mpa)              Unit(mm)
    L H Hl
    1.6/2.5MPa 4.0MPa
    15 160 180 290 90
    20 160 180 300 98
    25 180 200 300 110
    32 200 220 300 110
    40 220 240 320 125
    50 250 270 320 125
    65 280 300 325 130
    80 310 330 365 160
    100 350 380 365 170
    125 400 450 475 200
    150 450 500 475 210
    200 500 550 515 240
    250 650 560 290
    300 800 705 335
    350 850 745 375
    400 900 780 405
    450 900 730 455
    500 950 835 465
  • high pressure reducing valve outline dimension (PN64-160)

    DN Outline dimension (PN6.4-16Mpa)              Unit(mm)
    L H Hl
    6.4MPa 10.0/16.0MPa
    15 180 180 300 100
    20 180 200 310 105
    25 200 220 31 120
    32 220 230 310 120
    40 240 240 335 135
    50 270 300 335 135
    65 300 340 340 140
    80 330 360 380 170
    100 380 380 185
    125 450 490 215
    150 500 490 225
    200 550 535 260
    250 650 580 310
    300 800 725 355
    350 850 765 395
    400 900 800 435
    500 950   855 495

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