Seiko quality driven water Shengbokaisi no negative pressure water supply equipment constant pressure water supply equipment mainly by the frequency control cabinet, etc., can always maintain the gauge pressure (ie the user pipe pressure) is equal to the value set by the user. Can be used for general living or production water. The composition of the water supply system are: 1, frequency of water supply equipment and municipal water supply pipe network constant pressure when the water pressure to meet the needs of all pump automatic shutdown. Otherwise, the water supply equipment start-up, increasing the pressure to meet the water requirements. 2 additional small pressure tank operation. 3, constant pressure water supply equipment can consult Ducor pump. While providing pumps and pump repair and maintenance. Device Features 1, non-vacuum systems and municipal water pipe network directly connected pressurized run municipal water pipe network will not cause negative pressure. 2, the pressure is set by adjusting the pressure control valve can be set to permit municipal water pipe network license suction pressure. 3, by the pressure (or laminated) over the license when the suction pressure and flow can boost the pressure in the water pipe network basis. Compared with ordinary run absorbent reservoir can be reduced from the number of pump units, or (and) reduce speed to save energy. 4, constant pressure device in real time via the outlet pressure sensor, the detection value and set value comparison operators to determine the motor and pump in Taiwan ploidy and the inverter output frequency (response to the motor and pump for speed) in order to recover the water stick curve constant pressure. 5, no noise with modern design, full account of the modern environmental requirements, the choice of the mute special inverter, using a silencer design tools, so the system can be ultra-quiet operation. 6, continuous water supply line power outage, the system continues to achieve blackout BY PASS water through other means, when that power the system automatically switches to the municipal water supply pressure. 7, a highly automated system to achieve automatic control, with manual / automatic switch, main and auxiliary pump regular rotation, pressure adjustment, constant voltage, low voltage protection, under phase protection, leakage protection, overload protection, thermal protection, water protection, leak detection compensation, without water stop, instantaneous trip protection. The other can be configured according to user needs the man-machine interface, visualization remote adjustment, monitoring and maintenance. Works according to user requirements, first set the water pressure value, and power to run, the pressure sensor monitors pressure in the pipe, and into an electrical signal to the programmable controller or computer controller, the analysis and processing, the signal is transmitted to the drive to control the pump operation, when the water increases, the output voltage and frequency increases, the pump rpm increases, the amount of water increases, when the water is reduced, the number of revolutions lower pump, reduce the amount of water that is provided to maintain the pressure in the pipe ,, given pressure value in more than one pump is running, by machine soft-start, frequency by frequency-changing pressure and flow to meet up, to achieve a circulating pump control, when the nighttime low flow operation, work can be maintained through the variable-speed pump, Frequency feed pump can stop packing. Shengbokaisi negative pressure water equipment a range of applications, new residential areas, villas, offices, building domestic water supply. 2, high-rise buildings, fire water, hotels, restaurants and other water life. Water supply system transformation 3, pressure water, ground pool pressure tradition. 4, a variety of boiler cold water supply systems, boiler water. 5, in the middle of the water plant booster pump station, the second pressurized water. 6, various industrial and mining production, domestic water pipe network regulator. 7, various types of recycled water, cooling water supply system. 8, the water pressure can not meet the requirements of life, fire pressurized water. Shengbokaisi a negative pressure water equipment, saving a total investment of 70% 2, 3 pure water, saving 70% 4, save floor. Saving installation 5 hours, saving manpower. 6 and resources, low noise Shengbokaisi stainless steel tanks often used SUS304, SUS316L, SUS444 and other stainless steel, metal forming. General stamping into three dimensions, namely, 1x1 meters, 1x0.5 meters and 0.5x0.5 meters three, surrounding by TIG welding of high strength, light weight, low cost, environmental health and other characteristics. Shengbokaisi (Hunan) Equipment Co., Ltd: http: //www.saintbox.cn