Diaphragm Pump Leak Detection

In the previous blog, we discussed the common failures of pneumatic diaphragm pumps and analyzed their causes. Now, Anhui Shengshi Datang will guide you on how to troubleshoot these issues and what steps to take when encountering such situations. Troubleshooting and Handling Measures 1. Air Pump Not Working When it is found that the pneumatic diaphragm pump cannot start normally or stops immediately after starting, it should be inspected based on this symptom: (1) First, check whether the connection points of the circuit are broken. If the circuit is damaged or the connections are loose, replace the wires in the circuit or reinforce the connections promptly to restore the equipment to operation and improve the stability of the air pump. (2) If parts that frequently experience friction show significant wear or have aged and lost elasticity, consider replacing them to enhance the stability of the system operation. 2. Inlet/Outlet Pipeline Blockage If the issue with the air pump is determined to be in the inlet/outlet pipeline, and the pump cannot operate normally due to pipeline blockage, inspect and address it based on the following symptoms: Common Faults Cause Analysis Handling Measures Insufficient pressure supply or pressure increase in the diaphragm pump Improper adjustment of the pneumatic diaphragm pump pressure regulating valve or poor air quality; malfunction of the pressure regulating valve; malfunction of the pressure gauge Adjust the pressure valve to the required pressure; inspect and repair the pressure regulating valve; inspect or replace the pressure gauge Pressure drop in the diaphragm pump Insufficient oil replenishment by the oil replenishment valve; insufficient feed or leakage in the feed valve; oil leakage from the plunger seal Repair the oil replenishment valve; inspect and repair the sealing parts; refill with new oil Reduced flow rate in the diaphragm pump Pump body leakage or diaphragm damage; rupture of the inlet/outlet valve; diaphragm damage; low speed that cannot be adjusted Inspect and replace the sealing gasket or diaphragm; inspect, repair, or replace the feed valve; replace the diaphragm; inspect and repair the control device, adjust the rotation speed (1) Disassemble and clean the internal pipelines of the equipment to remove various impurities attached to the pipelines. Improve the cleanliness of the pipe walls and enhance the stability of the equipment operation. (2) Strengthen the management of medium materials to ensure that materials do not mix due to sharing. Ideally, use one device for pumping a specific material. If the same equipment must be used, clean the pipelines promptly to avoid air pump pipeline blockages and improve the stability of the air pump's working condition. 3. Severe Ball Seat Wear If ball seat wear is confirmed through inspection, troubleshoot using the following measures: (1) First, confirm whether its sealing performance can support normal equipment operation. If the ball seat wear is too severe to determine, replace the ball seat to maintain the fit between the ball seat and the ball and avoid poor sealing. (2) Since friction between the ball seat and the ball is inevitable, monitor the operating condition of the ball seat in real time during daily operations to enhance the overall stability of the equipment. 4. Severe Ball Valve Wear If ball valve wear is confirmed through inspection, and the wear is severe, troubleshoot using the following measures: (1) Replace severely damaged ball valves. If no spare ball valve is available, temporarily use a ball bearing as a substitute and replace it with a matching ball valve afterward. (2) Media with excessively high viscosity will increase the resistance of the ball, preventing flexible operation. In this case, clean the ball valve and base to ensure smooth transportation and improve the stability of the equipment operation. 5. Irregular Air Pump Operation For issues related to irregular air pump operation, inspect and address them based on the specific symptoms: (1) Replace severely worn ball valves to improve structural stability. (2) If the diaphragm is damaged, replace it promptly to enhance the reliability of the system's processing. (3) If the issue is due to limitations of the preset system, upgrade the system to improve the stability of the equipment system operation. 6. Insufficient Air Supply Pressure For problems caused by insufficient air supply pressure, inspect and troubleshoot using the following measures: (1) Confirm whether the equipment operating system is stable and check the system pressure condition. If it meets the requirements, continue using it; otherwise, debug it as soon as possible. (2) To maintain the volume and cleanliness of compressed air, add an air filtration device and improve the purity of the compressed air to maintain the equipment output rate and enhance system stability.