Zhengzhou pump | water pump | West by West Baoquan Baoquan water. West Baoquan Water Treatment Equipment Co. (www.xianbaoquan.com) have been "Business League certification", please rest assured purchase through the entire network, click on the page check "Business League certification Icons" My company authentication information. You can also click on the "Business Alliance Service Icons" on this page directly contact our customer service! Usually we say no negative pressure water supply equipment, generally refers to the frequency of water supply equipment without negative pressure water pump, also called frequency negative pressure water equipment, is directly connected to the water supply pipe line of pressurized equipment. The traditional way is inseparable from the reservoir water pump, reservoir water pipe supplying water in general, after such a stressful water into the pool becomes zero, causing a lot of energy wasted. No negative pressure water equipment is an ideal energy-supply equipment, it is a direct connection with the water pipe network, water pipe network does not produce any side effects of secondary water supply equipment, based on the municipal pipe network pressure directly overlying water supply municipal water pumps, fire pumps to save energy, and also has a fully enclosed, non-polluting, small footprint volume, quick installation, reliable operation, easy maintenance, and many other advantages. Circulating pump means feeding the reaction apparatus, absorption, separation, liquid absorption liquid circulation pump regeneration. Generally use single-stage centrifugal pump. Circulating pump flow of medium size, in a stable operating conditions, the pump flow rate variation is relatively small. It is a small low lift, but to overcome the pressure drop in the circulatory system. Can be low-lift pump. Circulation pump refers to the role of the pump, the centrifugal pump means in terms of structure, the two entirely different concepts. Circulation pump works used to pump up the water cycle is called a circulating pump, such as heating pipes in plumbing is by circulating hot water circulating pump up.