Shandong current limiting check valve Product selection Product quotation Technical support After-sales service

The flow limiting check valve is mainly used to install the pump with the pump pressure outlet when used in parallel with multiple pumps to limit the working flow of the pump and prevent the pump from returning. Flow-limiting function This valve is installed at the outlet of the pump. When a single pump is started and a non-full design working pump is working, the multi-working pump plays a role of limiting the flow to make the pump work at a higher efficiency state; preventing the motor from loving the pump's low head and large flow When the efficiency is low, an overload phenomenon occurs; it prevents the phenomenon of over-rated current from burning the motor, and at the same time it has a certain energy saving effect. The current limiting principle is: according to the design working condition of the pump, the pilot valve automatically detects and controls the actual working head of the pump to limit the working flow of the pump and the load of the motor. The valve is set with a control working gas head. When the pump working head is lower than the control head, the valve closes the valve to increase the actual working head. When the pump working head is greater than the set head, the valve is fully open and the valve resistance is extremely small. The setting of the control gas lift can be set according to the rated current of the motor, or it can also be set according to the high-efficiency working conditions. The valve working head setting is adjustable. Generally, the factory setting is the design working head. Non-return function. The non-return function of this valve is completely equivalent to a micro-resistance slow-closing check valve, without closing noise and zero backflow. This valve is mainly used to install the pump and the pump pressure outlet when used in parallel with multiple pumps, to limit the working flow of the pump and prevent the pump from returning. The valve adopts a pilot-main valve structure, which is compact in structure and light in weight.