Fluid Ends,Fluid End Assembly,Fluid End Spare Parts,Fluid End Of Mud Pump Jiangyin Yida Machinery Manufacturing Co.,Ltd. , https://www.yidamachineries.comNormally, the working valves are grouped into groups, and the inlet valve block has a built-in three-way pressure compensation bypass relief valve (logic element, when the multi-way valve is stopped and the valves are in the middle, -? 12BAR) bypass the main oil flow. When a valve work, the valve under the load pressure bypass port to reduce, according to the load pressure to provide the required flow.