Base on the pressure variation of pipe network, frequency control cabinet makes adjustment for rotate speed and unit numbers of pumping unit to realize constant pressure water supply intelligent mechatronics device. The equipment consists of a pressure sensor, PLC programmable logic controller, PID regulation, inverter, control of the original device, the control circuit, pumps, valves, pipes, pipe base and fittings , which form a closed loop control system, according to an instantaneous change of the flow of pipe network, pressure and other parameters, automatically change the speed and the number of units for the pump, to realize the closed-loop regulation of constant variables, so that the entire water supply system will always maintain the most reasonable, most environmentally friendly and economical operation condition.

Design characteristics

1. Automatically adjust the pump speed and the number of units in operation according to water changes, and the energy savings is significant(>40%).

2. Soft start to several pumping set circulation, reduce impact and remove water hammer; operate according to the principle of first start and first stop, first stop and first start, and timing pump change, and make a balanced use of each pump, and further extend the life of equipment.

Operating parameters

Outlet diameter of pump: DN 40~400mm

Flow rate Q maximum can reach 3000M3/H

Head H maximum can reach 310m

Operating pressure P maximum can reach 32BAR

Operating temperature T maximum can reach 120