Pipeline filter, reverse flow prevention device, calculation of heat preservation for water meter? According to the water supply equipment,Especially the return of drinking water pipes is seriously polluted,In the case of no effective prevention of reflux pollution devices,A hydraulic control combination device developed to strictly limit only one-way flow of water in the pipeline,Its function is to prevent the media from flowing back in the pipeline under any working condition,In order to achieve the purpose of avoiding pollution back.At present, the reverse flow prevention device is mainly divided into two categories: low resistance reverse flow prevention device and Decompression type reverse flow prevention device,According to the national standard, the head loss of the low resistance reverse prevention device is less than 3 m,The head loss of the pressure relief type backflow prevention device is less than 7 m.
How to remedy the location of the pre-set water purifier when decorating? It can be installed at any time. The pre-filter mainly plays a coarse filter function. the filtration accuracy is between 40-60 microns. the filter tap water is transported through long-distance transportation of large particles to prevent large particles from affecting the service life of wading appliances in the home, at the same time, it also plays a stabilizing role. The water quality test of the EU shows that the water coming out of the pre-water purifier of the Ryder West level can reach the full cover of pollutants, and the water quality can reach the original pollution-free water source level, therefore, it is necessary to install the front water purifier.