Current limiting check valve function description: Current limiting check valve is installed at the pump outlet, the pump work in a single pump start and non-full design work, the work of the pump from the limited flow, so that the pump work in a higher efficiency state; Prevent the motor in the pump low head, large flow, low efficiency. Overloaded phenomenon occurs; to prevent over-rated current burning phenomenon, at the same time play a certain energy-saving effect. The current limiting principle is: based on the pump design conditions head lift, pilot valve automatically detects and controls the actual working lift pump. To limit the pump's work flow, limit the load on the motor. Current limiting check valve to set a control working lift, when the pump head is lower than the control lift the valve to close the valve action, so that the actual working lift increased; when the pump working lift greater than the set valve lift, valve resistance pole small. The control head can be set according to the rated current of the motor, or set according to the high efficiency working condition. The working lift of the valve can be adjusted. General factory setting for the design conditions lift.
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