Current-limiting non-return valve a energy saving effect

Current-limiting non-return valve installed in the pump outlet, the single pump start and not all design work when the pump work, the work function limit flow pump, the pump in the condition of high efficiency; To prevent the motor in the low head, large flow, low efficiency of pump. Overload occur; Prevent excess rated current motor burning phenomenon, at the same time a certain energy-saving effect. Current-limiting non-return valve working condition of current limiting principle is based on the design of the pump head, pilot valve automatically detect and control the actual working head of the pump. In order to limit the pump work flow, limit load of the motor. Current-limiting non-return valve set a lift control work, when the pump work head below the valve lift control valve movement, makes the actual work head increase; When setting work water pump head is greater than the head valve fully open, the valve with low resistance. Control head set can be set according to the motor rated current, can also be set according to the working condition of high efficiency, the head valve work set point is adjustable. General factory set value for the design condition of head.