Diaphragm pump common troubleshooting

Symptoms the reason Approach Motor can not be started ① no power supply ② power one phase or two phase power ① Check the power supply situation ② Check the fuse contact point is good Do not drain or drain enough ① Suction tube blocked or suction line valve is not open ② suction pipe is too long, sharp turn too much ③ suction pipe leakage ④ Suction valve or discharge valve sealing surface damage ⑤ diaphragm pump residual air ⑥ fill valve group or diaphragm cavity leaks, oil spills ⑦ safety valve , compensation valve does not operate properly ⑧ plunger packing leaks seriously ⑨ motor speed is not enough or unstable ⑩ suction liquid level is too low ① Check suction tube and filter, open the valve ② bold suction pipe to reduce sharp turn ③ will leak parts sealed ④ check the valve seal, if necessary, replace the valve ⑤ re-filling oil, exhaust air ⑥ identify leaks and eliminate parts ⑦ readjustment ⑧ adjust the packing gland or update the packing ⑨ stable motor speed ⑩ adjust the level of inhalation liquid Pump pressure can not reach the performance parameters ① inhalation, discharge valve damage ② plunger packing leaks seriously ③ diaphragm or discharge pipe joints lax ① update the valve ② adjust the packing gland or replace the new packing ③ find the location of air leaks and eliminate Reduced measurement accuracy ① And "no drainage or lack of drainage" in ④ ~ ⑩ the same ② plunger zero offset ① and "no drainage or lack of drainage" ④ ~ ⑩ the same ② readjust the plunger zero Parts overheated ① transmission tank too much or insufficient fuel, oil impurities ② poor lubrication of the Deputy Sports ③ packing pressed too tight ① replace the new oil, and the amount of oil ② check and clean the hole ③ adjust the packing gland Impact sound inside the pump ① serious wear and tear of sports teams ② valve lift is too high ① adjust or replace parts ② adjust the height of the lift to avoid valve lag Symptoms the reason Approach Motor can not be started ① no power supply ② power one phase or two phase power ① Check the power supply situation ② Check the fuse contact point is good Do not drain or drain enough ① Suction tube blocked or suction line valve is not open ② suction pipe is too long, sharp turn too much ③ suction pipe leakage ④ Suction valve or discharge valve sealing surface damage ⑤ diaphragm pump residual air ⑥ fill valve group or diaphragm cavity leaks, oil spills ⑦ safety valve , compensation valve does not operate properly ⑧ plunger packing leaks seriously ⑨ motor speed is not enough or unstable ⑩ suction liquid level is too low ① Check suction tube and filter, open the valve ② bold suction pipe to reduce sharp turn ③ will leak parts sealed ④ check the valve seal, if necessary, replace the valve ⑤ re-filling oil, exhaust air ⑥ identify leaks and eliminate parts ⑦ readjustment ⑧ adjust the packing gland or update the packing ⑨ stable motor speed ⑩ adjust the level of inhalation liquid Pump pressure can not reach the performance parameters ① inhalation, discharge valve damage ② plunger packing leaks seriously ③ diaphragm or discharge pipe joints lax ① update the valve ② adjust the packing gland or replace the new packing ③ find the location of air leaks and eliminate Reduced measurement accuracy ① And "no drainage or lack of drainage" in ④ ~ ⑩ the same ② plunger zero offset ① and "no drainage or lack of drainage" ④ ~ ⑩ the same ② readjust the plunger zero Parts overheated ① transmission tank too much or insufficient fuel, oil impurities ② poor lubrication of the Deputy Sports ③ packing pressed too tight ① replace the new oil, and the amount of oil ② check and clean the hole ③ adjust the packing gland Impact sound inside the pump ① serious wear and tear of sports teams ② valve lift is too high ① adjust or replace parts ② adjust the height of the lift to avoid valve lag