Changsha Water Supply Equipment Co., Ltd. from China 
 Contact: Lee 13548612261 
 Municipal water supply equipment is no negative pressure for the water pipe network, take advantage of the existing municipal pipe network pressure to form a continuous relay in closed pressurized water supply, energy saving, no secondary pollution of water is constant pressure water supply equipment development and extension. No negative pressure water supply consists of: China from the non-negative pressure water pump unit mainly by frequency control, steady flow compensator, vacuum suppressors, pressure and flow sensors, pre-press from the balancer, the control cabinet, filters, backflow prevention device and so on. No negative pressure water supply works: water into the conditioning tank, the tank to eliminate air from the vacuum inside the discharge until the water is full, remove the vacuum automatically turns off. When the water pressure and water to meet water requirements, water supply equipment through the bypass valve from the users directly to the water supply pipe network; when the water pipe network water pressure can not meet the requirements of the system by the pressure sensor (or pressure controller, power Contact pressure gauge) gives the starting signal from the pump to run water pumps. Pump water, if the water pipe network of water is greater than pump flow, the system to maintain normal water supply, the water peak, if the water pipe network is less than the pump flow of water, adjust the water tank as a supplementary source of water still normal water supply, this When air enters from the conditioning tank to eliminate the vacuum, eliminating the negative pressure water pipe network, water peak period, the system returned to normal state. If the water supply shortage or disruption of water supply pipe network which led to declining water level regulator tank, liquid level controller, pump stop signal is given to protect the water pump. Small flow of water at night and when the expansion tank through a small water pump to prevent frequent start. 
 If the pump directly connected to the municipal pipe network, need to build reservoirs, connected directly with the municipal pipe network, but China's urban water supply regulations in order to prevent an impact on the surrounding residential water, allowed to live, production pumps installed directly in the municipal pipe network. In order to solve the water supply device connected in municipal water supply can not produce negative pressure pipe-line, but does not affect other users of the water, you need to pump between the import and creation of municipal pipe network flow controller, sub-cavity voltage compensation tank, etc. , flow controller constantly monitored by the municipal pipe network pressure, to ensure the municipal pipe network does not produce negative pressure can also make full use of the municipal pipe network of the original pressure. 
 When the user demand for water is greater than the municipal supply, the use of sub-cavity voltage compensation tank, the tank full complement of water pipe network to the user until the water has stabilized, and then through the pump and two-way compensation device will be cavity voltage compensation tank the water, to prepare for the next round of the peak water needs 
 Without the characteristics of a negative pressure water equipment, advanced technology: no inhibition of negative pressure water equipment will be vacuum technology, fluid control technology and intelligent inverter technology and other advanced technology to optimize the integration of non-negative pressure water equipment and water pipe network directly connected in series achieve regulation, energy, health, safe and reliable operation, do not produce negative pressure, do not build pools, water tanks. 2, health pollution: no negative pressure water equipment for the entire seal structure, bacteria and dust will not enter the system; to avoid the breeding of algae, to prevent secondary pollution of water sources and water quality pollution problems, users are in line with national health standards tap water. 3, no negative pressure water equipment, energy-saving effect is remarkable: closed structure to run, to avoid seepage, run, run, drip, leak phenomenon, no pools, water tanks, water saving washing disinfection. Directly in series with the water pipe network, you can take advantage of the existing water pressure, how much less make up the amount of water to meet the requirements of the equipment to stop working. Most of the time without negative pressure water equipment running at lower frequencies, less power consumption. The use of inverter technology, further energy-saving, comprehensive energy saving up to 50% or more. 4, the reliable operation: no effect on the water pipe network, the device can not regulate the use of automatic adjustment of negative pressure, pressurized water supply pipe network is not on the original pipe negative pressure does not affect other users of normal water. 5, no negative pressure water equipment investment savings: no need to build reservoirs or water tanks, save construction investment; without pressure from zero, so the selection of equipment than the investment in equipment to reduce; water pollution, does not require purification equipment, saving investment. Water pipe network can take advantage of the pressure, energy consumption, save the daily electricity expenses. Useless pools, water tanks, saving the cost of regularly cleaned and disinfected. 6, electrical equipment, flexible configuration: either the use of electrical control part of the frequency constant (variable) pressure control, may also seek. 
 Contact: Manager Li 24-hour service hotline: 13548612261 
 QQ: 1696605440 QQ E-mail: 1696605440@qq.com 
 Tel :0731 -86,906,211 
 Welcome to inquire Website: Code: 410126