Sales Miss Europe: 159-7414-3465 Online Q: 1922601218 full free service hotline: 400-086-8955-- Zhejiang box no negative pressure water equipment Profile Zhejiang box no negative pressure water equipment is specialized for Water Supply Control standardized product perfect man-machine interface and integration constant pressure water supply dedicated plc (microcomputer supply control program) from the introduction of foreign latest design concepts, Zhejiang box no negative pressure water equipment and sophisticated technology combined with Chinese people's water use habits and secondary development a. Zhejiang box no negative pressure water equipment specially intelligent harsh environment for the pumping station, no need constant water supply, stable operation and research and design Zhejiang box no negative pressure water equipment Overview Zhejiang box no negative pressure water equipment is specialized plc constant pressure water supply equipment, instead of the traditional PLC while providing the Chinese show no programming, LCD Chinese display, the perfect combination of the latest microcontroller technology to achieve seamless integration of HMI and supply of special plc, Zhejiang box-free negative pressure water equipment to achieve both full-featured, Zhejiang box no negative pressure water equipment performance and stable operation of the overall structure is simple and compact and beautiful appearance. - Zhejiang box no negative pressure water supply equipment constant pressure water supply system works using a potentiometer set pressure (pressure inside the panel may also be set), the use of a pressure sensor (feedback is 4 ~ 20mA) test tube network Pressure, pressure sensor signal into the inverter PID loop PID loop after treatment, sending a signal to increase or decrease the amount of water, to control the motor speed. If within a certain delay time, the pressure is still insufficient or too large, then the laborers through the inverter frequency / inverter switching start another pump, so that the actual pressure in the pipe is consistent with the set pressure. With the reduction of water consumption, the inverter automatically reduces the output frequency or the removal of the pump, to the conservation of energy. Sales Miss Europe: 159-7414-3465 Online Q: 1922601218 (pro, water supply equipment online consultation free shipping ohhh) Website: http: //www.cshxgs.com full free service hotline: 400-086-8955 Changsha Hanson Water Equipment Co., Ltd. specializes in producing all kinds of frequency of water supply equipment factory Address: Long Shali Tuo Industrial Park (welcome customers to visit the factory equipment)