• DHH44, SKBC micro-resistance slow closing silencing check valve
  • DHH44, SKBC micro-resistance slow closing silencing check valve
  • DHH44, SKBC micro-resistance slow closing silencing check valve
DHH44, SKBC micro-resistance slow closing silencing check valve
DHH44, SKBC micro-resistance slow closing silencing check valve
DHH44, SKBC micro-resistance slow closing silencing check valve
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DHH44, SKBC micro-resistance slow closing silencing check valve

The company's production of H47X/H, DHH44X/H-10/16 type micro-resistance slow closing muffler check valve is mainly used for industrial, urban water supply and drainage pipelines and high-rise residential, high-level hotels, pressurized water pump outlet. In the design of full consideration of the requirements of the use of the environment, the use of inclined plate structure, to achieve no vibration, no noise, smooth operation, to ensure that the hotel, residential environment is quiet, and has the effect of energy saving. The local reverse water is discharged into the system by delaying the closing, which greatly reduces the water pressure impulse of the reverse flow of the pump and eliminates the generation of destructive water hammer peaks. The interception seal adopts nitrile rubber, which has good sealing performance and shock absorption. Features such as wear resistance, long service life and convenient maintenance.

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Product Details


DHH44, SKBC micro-resistance slow closing silencing check valve

Product overview

The company's production of H47X/H, DHH44X/H-10/16 type micro-resistance slow closing muffler check valve is mainly used for industrial, urban water supply and drainage pipelines and high-rise residential, high-level hotels, pressurized water pump outlet. In the design of full consideration of the requirements of the use of the environment, the use of inclined plate structure, to achieve no vibration, no noise, smooth operation, to ensure that the hotel, residential environment is quiet, and has the effect of energy saving. The local reverse water is discharged into the system by delaying the closing, which greatly reduces the water pressure impulse of the reverse flow of the pump and eliminates the generation of destructive water hammer peaks. The interception seal adopts nitrile rubber, which has good sealing performance and shock absorption. Features such as wear resistance, long service life and convenient maintenance.

Technical parameters

Nominal pressure 1.0~1.6MPa
Nominal General 200~2000mm
Applicable media Clear water, mud water, sewage and sea water
Applicable temperature 0~80℃
Flange standard GB/T 17241.6GB/T 9113
Test standard GB/T 13927 API598

Typical Installation Schematic

Main Parts and Components Materials

Part Name Valve body Butterfly plate Sealing ring Stem Buffer cylinder
Materials Gray cast iron, cast steel Carbon Steel nitrile rubber Stainless Steel Stainless Steel

Main connection dimension unit: mm

DN 200 250 300 350 400 450 500 600 700 800 900 1000 1200 1400 1600 2000
L 230 250 270 290 310 330 350 390 430 470 510 550 630 710 790 950
H 550 630 690 780 860 910 980 1070 1220 1320 1430 1550 1800 1980 2150 2550
B 450 520 590 670 750 780 850 970 1080 1200 1300 1450 1670 1880 1950 2450

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