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Micro resistance slow closing silencing check valve DHH44

Nominal pressure1.0~1.6MPa

Nominal diameter200~2000mm

MediumClean water, mud water, sea water and sewage

Temperature0~80℃

Flange standardGB/T17241.6 GB/T9113

Test standardGB/T13927 API1598

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Product overview

DHH44 micro resistance slow closing check valve is mainly used at the outlet of industrial and urban water supply and drainage pipelines, high-rise houses, high-grade hotels and pressurized water transmission pumps. In the design, the requirements of the use environment are fully considered, and the inclined plate structure is adopted to achieve no vibration, no noise and stable operation, ensure the quiet environment of hotels and houses, and have the effect of energy saving. The local backflow water is discharged into the system by delaying the closure, which greatly reduces the hydraulic impulse of stopping the pump and backflow, and eliminates the generation of destructive water hammer peak. The closure seal adopts nitrile rubber, which has the characteristics of good sealing performance, shock absorption and wear resistance, long service life and convenient maintenance.