Lift check valve H41H

Short Description:

Lift check valve means to rely on the flow of the medium itself automatically open, close the valve, rely on the weight of the valve and fluid pressure in the automatic valves to prevent back flow of fluid medium, also known as the check valve, check valve, reflux valve, and the back pressure valve. The check valve is an automatic valve, its main role is to prevent the media back to prevent the discharge of the pump and drive motor reversal, as well as container media. The check valve can also be used to which the pressure may rise to the auxiliary system supplies more than the system pressure pipeline.


  • Warranty Time: 1 year
  • Customized support: OEM, ODM
  • Certificate: API, ISO, CE, RoHS
  • MOQ: 1 Set
  • Place of Origin: China
  • Brand Name: LIKV
  • Product Detail

    OEM/ODM Service

    Product Tags

     

     

     

     

     

     

    Lifting check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent medium backflow, also known as check valve, one-way valve, counterflow valve, and back pressure valve. Check valve is an automatic valve. Its main function is to prevent medium backflow, reverse pump and drive motor, and release of container medium. Check valves can also be used in pipelines to supply auxiliary systems where pressure may rise above system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).升降式止回阀

    Technical data

    PN(MPa)Nominal pressure 1.6 2.5 4.0
    (MPa)Test pressure Shell strength test 2.4 3.75 6.0
    Seal test (Liquid) 1.76 2.75 4.4
    Seal test (Gas) 0.5~0.7
    Suitable medium water,steam,oil PNiter acids Roil
    Suitable temperature  ≤425 ≤100  ≤550

    Meterial of main parts

    No.

    Part name

    Meterial

    ASTM

    GB

    1

    Valve body

    WCB, WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

    WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

    2

    Valve disc

    WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

    WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

    3

    Stud bolts

    A193-B7,A320-B8,A193-B8M

    35CrMoA,25Cr2MoV,0CM8Ni9,0Cr17Ni12Mo2

    4

    Hex nuts

    A194-2H,A194-8,A194-8M

    45,35CrMoA,25Cr2MoV, 0Cr18Ni9,0Cr17Ni12Mo2

    5

    Gasket

    Flexible graphite + stainless steel

    Flexible graphite + stainless steel

    6

    valve bonnet

    A105,F11,F22,F5,F9 F304, F316, F321, F304L, F316L

    25,1Cr18Ni9Ni,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV

     

    Main dimensions

    PN(MPa) DN(mm) L H D D1 D2 D6 b f f2 Z-ød
    1.6 15 130 77 95 65 45 - 14 2 - 4-14
    20 150 77 105 75 55 - 14 2 - 4-14
    25 160 80 115 85 65 - 16 2 - 4-14
    32 180 85 135 100 78 - 16 2 - 4-18
    40 200 95 145 110 85 - 16 3 - 4-18
    50 230 105 160 125 100 - 16 3 - 4-18
    65 290 120 180 145 120 - 18 3 - 4-18
    80 310 130 195 160 135 - 20 3 - 8-18
    100 350 140 215 180 155 - 20 3 - 8-18
    125 400 155 245 210 185 - 22 3 - 8-18
    150 480 180 280 240 210 - 24 3 - 8-23
    200 600 245 335 295 265 - 26 3 - 12-23
     2.5  15 130 100 95 65 45  -  16  2  -  4-14
     20 150 105 105 75 55  -  16  2  -  4-14
     25 160 120 115 85 65  -  16  2  -  4-14
     32 180 130 135 100 78  -  18  2  - 4-18
     40 200 135 145 110 85  -  18  3  -  4-18
     50 230 149 160 125 100 - 20 3 - 4-18
     80 310 169 195 160 135 - 22 3 - 8-18
    100 350 194 230 190 160 - 24 3 - 8-23
    150 480 255 300 250 218 - 30 3 - 8-25
    200 600 305 360 310 278 - 34 3 - 12-25
     4.0 15  130  100 95 65 45 40 16 2 4 4-14
    20 150 105 105 75 55 51 16 2 4 4-14
    25 160 120 115 85 65 58 16 2 4 4-14
    32 180 130 135 100 78 66 18 2 4 4-18
    40 200 135 145 110 85 76 18 3 4 4-18
    50 230 149 160 125 100 88 20 3 4 4-18
    80 310 169 195 160 135 121 22 3 4 8-18
    100 350 194 230 190 160 150 24 3 4.5 8-23
    150 480 255 300 250 218 204 30 3 4.5 8-25
    200 600 305 375 320 282 260 38 3 4.5 12-30

     

     

     


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