DHH44 microblocking and closing of the check valve

The DHH44 micro - stop check valves produced by our factory are mainly used in the export of industrial, urban water supply and drainage pipelines and high-rise residences, advanced hotels and pressurized water pumps. In the design, fully consider the use of environmental requirements, adopt the slanting structure, achieve no vibration, no noise, smooth operation, ensure the hotel, the residential environment is quiet. It has the effect of saving energy. The partial reflux water is discharged into the system by means of delay closure. Thus greatly reduces the reversal stop pump of hydraulic impact, eliminates the destructive water hammer peak, intercepting seal USES NBR, sealed performance is good, shock absorption, abrasion resistance, long service life, convenient maintenance, etc.