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H44H Steel Swing Check Valve

H44H Steel Swing Check Valve

H44H, H44W, and H44Y swing check valves refer to valves that automatically open and close the valve disc based on the flow of the medium itself, to prevent medium backflow. They are also known as check valves, one-way valves, backflow valves, and backpressure valves. A check valve is an automatic valve that primarily functions to prevent media backflow, prevent pump and drive motor reversal, and discharge container media.

  • Item NO.:

    XUVAL88-229
  • Lead Time:

    50 Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • MOQ:

    1
Products Details

Main technical parameters

Model H44H/W/Y-16 H44H/W/Y-25
Nominal pressure (Mpa) 1.6 2.5
Test pressure(Mpa) Case 2.4 3.8
Seal 1.76 2.75
Applicable temperature (℃) WCB(≤425℃)
Cr5Mo(≤550℃)
1Cr18Ni12Mo2Ti(≤200℃)
1Cr18Ni9Ti(≤200℃)
Applicable Medium Water, oil, steam, acidic media




Main overall dimensions(1.5Mpa

DN L D D1 D2 b-f n-d D0 H
50 230 160 125 100 20-3 4-18 185 177
65 290 180 145 120 22-3 8-18 215 192
80 310 195 160 135 22-3 8-18 235 192
100 350 215 190 160 24-3 8-23 260 217
125 400 245 220 188 28-3 8-25 296 250
150 480 300 250 218 30-3 8-25 330 270
200 550 360 310 276 34-3 12-25 380 350
250 650 425 370 330 36-3 16-30 430 410
300 750 485 430 390 40-4 16-30 490 430
350 850 550 490 448 44-4 16-34 545 450
400 950 610 550 505 48-4 16-34 600 560
500 1150 730 660 610 52-4 20-41 730 618


Main overall dimensions(1.6Mpa

DN L D D1 D2 b-f n-d D0 H
50 230 160 125 100 16-2 4-18 185 160
65 290 180 145 120 18-3 4-18 215 177
80 310 195 160 135 20-3 8-18 235 187
100 350 215 180 155 20-3 8-18 255 202
125 400 245 210 185 24-3 8-18 285 227
150 480 280 240 210 26-3 8-23 330 263
200 550 335 295 265 30-4 12-23 385 293
250 650 405 355 320 30-4 12-25 455 330
300 750 460 410 375 34-4 12-25 515 382
350 850 520 470 435 36-4 16-25 545 430
400 950 580 525 485 36-4 16-30 600 480
500 1150 705 620 608 44-4 20-34 730 560


Material for main parts

Part Name Material grade
Valve body, Valve cover, Valve disc, Rocker WCB ZGCr5Mo ZG1Cr18Ni9Ti ZG1Cr18Ni12M02Ti
Valve seat 25 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
Pivot pin 1Cr17Ni2 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
Sealing ring and gasket Wrapping pad 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti

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