If adjusting the inlet and outlet valves does not achieve the effect, you can adjust the safety valve at the outlet of the pump.The outlet pressure of the screw pump is achieved by adjusting the inlet and outlet to achieve the required pressure. When the pressure of the screw pump is low, the reasons should be eliminated from the following steps from simple to complex. 1. Check the pump's operating current when the pump is running to see if it is consistent with the description in the manual. Fully open the suction valve of the pump,
or try to increase the suction flow as much as possible, such as adding a small pump in front of the suction. Disassemble the gland of the pressure reducing valve, and use a wrench to [...]