High-pressure pump replacement packing sealed matters needing attention

After replacing the new packing with the high-pressure pump, the pump must be left in air for 2 hours (empty running is free of pressure in the pump chamber). On the pressure 4 hours a tight seal. The second 8-10 hours tight once, the third 24 hours tight. See the operation of high-pressure pump, it is recommended to be tight once a week. Sealed packing with a new type of carbon fiber braided packing, by adjusting the compression nut to adjust the seal. High-pressure pump and overhaul of the pump, must be empty after two hours of operation, can be transferred to the load operation. In the load operation, it is recommended that every 30 minutes by the rated pressure of a quarter step-by-step boost. In the process of step-up, in case of abnormal situation, stop the pump immediately to check, find out the reason, and then try again after troubleshooting. If no step-up conditions, but also can be directly pressurized to rated pressure, but high-pressure pump idling time must be more than four hours. During loading and unpacking, the instantaneous maximum pressure must not exceed 110% of the rated pressure. High-pressure pump in operation, is strictly prohibited to carry out any repairs to prevent accidents. The sealing nut on the seal should be checked frequently and never loose. Plunger work if there is a lot of liquid leakage, should stop high pressure pump Tighten the adjustment nut or replace the seal. Check all the screws and the flange nut loose and tightened. Disassembly and Assembly of Plunger and Packing Method: 1. Remove the adjusting nut 2. 2. Remove the packing 4 and the guide sleeve 3 from the other side with the removal tool. 3. When loading material, firstly install a guide sleeve 3, and then load the filling material 4 one by one with packing tools in sequence, then install a guide sleeve 3, tighten the adjusting nut. Pay attention to packing, the adjacent two filler cut must be staggered 90 ℃. Discharge valve seat and spring disassembly methods: 1. Remove the pressure plate 5. 2. Remove the gland 6 with the appropriate bolt. 3. Remove the upper cover 7, drain spring, valve. 4. Use a special tool to drain the seat. 5. Take out the middle spring 9, the lower valve cover 11, into the liquid spring, the valve. 6. Use a special tool to remove the inlet valve seat. 7. Check the valve plate, seat valve line, spring, O-ring, as the case changes or replace. 8. The installation procedure is opposite to the above.