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HH49X Butterfly Check Valve

HH49X Butterfly Check Valve

The HH49X micro resistance slow closing butterfly check valve is mainly used in the supply and drainage pipelines of clean water, source water, sewage, seawater, and other media. It is installed at the outlet of the water pump to cut off the backflow of the media and eliminate atomic energy damaging water hammer, protecting the safe operation of the pipeline and water pump.

  • Item NO.:

    XUVAL88-268
  • Lead Time:

    50 Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • MOQ:

    1
Products Details
main features

1. Small in size, light in weight, and with a structural length only about one-third that of a swing check valve.

2. The slow closing system has excellent performance and is not affected by the medium in the pipeline. The valve disc first closes quickly and then slowly, which can prevent ring breaking water hammer.

3. Rubber soft seal, good sealing performance, wear resistance, and long service life.

4. Rubber buffering, smooth opening and closing, no vibration, no noise.

5. Compared to old-fashioned check valves, it has a smaller flow resistance and significant energy-saving effect.


Main performance specifications

Model HH47X-10 HH48X-10 HH49X-10 HH47X-16 HH48X-16 HH49X-16
Nominal Pressure PN1.0MPa PN1.6MPa
Nominal Diameter DN50800mm DN50800mm
Seal test pressure 1.1MPa 1.76MPa
Shell Test Pressure 1.5MPa 2.4MPa
Material for main parts Valve body Grey cast iron or ductile iron Grey cast iron or ductile iron
Valve disc Aluminum bronze Aluminum bronze
Valve stem Stainless steel Stainless steel
Spring Stainless steel Stainless steel
Seat Seals Face Rubber Rubber


Main overall dimensions

Nominal diameter DN Size (mm)
mm in D D1 D2 H H1 L Z-фd Bolt
150 6 280 240 210 228 172 210 8-ф23 8-M20
200 8 335 295 265 270 210 230 8-ф23 8-M20
250 10 390 350 320 305 240 250 12-ф23 12-M20
300 12 440 400 368 367 264 270 12-ф23 12-M20
350 14 500 460 428 422 294 290 16-ф23 16-M20
400 16 565 515 482 462 324 310 16-ф23 16-M22
450 18 615 565 532 497 351 330 20-ф25 20-M22
500 20 670 620 585 532 379 350 20-ф25 20-M22
600 24 780 725 685 607 434 390 20-ф30 20-M27
700 28 895 840 800 702 491 430 24-ф30 24-M27
800 32 1010 950 905 792 549 470 24-ф34 24-M30

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    If you are interested in our valves and want to know more details,please leave a message here,we will reply you as soon as we can.