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H81X-16Q Grooved Type Silencer Check Valve

The H81X-16Q Grooved Type Silencer Check Valve combines groove connections with silencing and backflow prevention. Its slow-closing design reduces water hammer and noise (<=60dB), suitable for HVAC, fire protection, and water supply systems with max 16 bar pressure and 0°C-80°C range.

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Descripción

H81X-16Q Grooved Type Silencer Check Valve

MATERIAL SPECIFICATION
Model	H41X-1.0	H41X-1.6
Valve body（1）	Cast iron or stainless steel	Cast steel or stainless steel
Sealing ring（2）	Nitrile rubber（NBR）	Nitrile rubber（NBR）
Spring（3）	Stainless steel wire 1Cr8Ni9Ti	Stainless steel wire 1Cr8Ni9Ti

DIMENSIONS
Size	L mm	Weight kg
DN65	144	6
DN80	152	8
DN100	159	11
DN125	175	18.5
DN150	196	21.5
DN200	226	36.5

PRODUCT DESCRIPTION

1.The grooved silencer check valve is a special valve that combines the groove connection method, silencer function and check function.
2.It is mainly used in pipeline systems to prevent medium back flow.
3.Reduce water hammer impact and reduce noise when the valve is closed.

FEATURES

1.Groove connection：The clamp-type groove connection is adopted, and no welding or thread processing is required during installation. It is fastened by rubber sealing rings and clamps, which simplifies construction and facilitates maintenance.
2..Silence design：Slow closing structure: When the valve disc is closed, it is slowly closed through springs, hydraulic damping or lever mechanisms to avoid the impact noise caused by the instantaneous closing of traditional check valves.
3.Flow channel optimization: The streamlined design inside the valve body reduces turbulence and vibration noise.
4.Check function：The valve disc is opened by the forward flow pressure of the medium, and automatically closed when the medium is reversed to prevent back flow
5.Low noise: The slow-closing design significantly reduces the "water hammer effect" and the impact sound of the valve closing, and is suitable for noise-sensitive environments (such as hospitals and residential areas).
6.Easy installation: The groove connection saves man-hours and is particularly suitable for renovation projects or places with limited space.
7.Durability: The valve disc is mostly made of stainless steel or copper alloy, and the sealing material is nitrile rubber or EPDM, which is corrosion-resistant and has a long service life.
8.Simple maintenance: The detachable structure is convenient for cleaning pipeline impurities or replacing seals

APPLICATION

1.Building water supply and drainage: high-rise building water pump outlet, to prevent water hammer from damaging the pipe when the pump is stopped.
2.HVAC: chilled water circulation system, to reduce the noise of pump start and stop.
3.Fire protection system: protect fire pumps in the sprinkler network to avoid back flow and contamination of water sources.
4.Industrial circulating water: cooling water return pipeline, to reduce the impact of water hammer on the heat exchanger.
5.Municipal water supply: booster pump station outlet, to ensure stable operation of the network.