Engineering plastic pneumatic diaphragm pump troubleshooting

Pneumatic diaphragm pump engineering plastics in the use of a long time, or long working hours, often prone to failure, affecting our normal operation. Therefore, it is necessary to master some methods to eliminate the malfunction of the plastic pneumatic diaphragm pump. In case of failure, we can eliminate it in time. Some exclusion of plastic pneumatic diaphragm pump failure, as follows: Engineering plastic pneumatic diaphragm pump First, how to remove the pump 1. Before removing the pneumatic diaphragm pump, the left and right sides of the gas chamber and liquid chamber were marked to help follow-up again Assembly action. 2. Use a wrench to loosen the small clamp connecting the outlet pipe to the liquid chamber. Remove the outlet pipe to see the ball and valve seat. Remove the ball and seat and inspect the pump for wear, chemical corrosion, cracks, etc. phenomenon. 3. Using a wrench, loosen the small clip that connects the inlet tube to the liquid chamber. 4. Use a wrench to separate the fluid chamber from the pump's intermediate body. Remove the fluid chamber to see the diaphragm and diaphragm clamp. 5. Use a tool or wrench to secure the left and right edges of the diaphragm clamp to separate the diaphragm assembly from the intermediate body. Then turn clockwise to loosen the diaphragm assembly. After removing the diaphragm from the clamp, remove the shaft from the intermediate body. 6. Use clamps (padded wood) to separate the shaft from the diaphragm assembly and check shaft, clamp, diaphragm for damage and corrosion. 7. INSTALLATION From step 6 to step 1 2, the pneumatic diaphragm pump is actuated, but with little or no liquid flow out: 1. Check the cavitation of the pump to reduce the pump speed and allow liquid to enter the chamber. 2. Check whether the valve ball is stuck. If the operating fluid is incompatible with the pump elastomer, the elastomer will swell. Please replace the appropriate material elastomer. 3. Check the pump inlet connector is completely tight leak, especially near the entrance end of the valve ball to be locked. 4. Pump air valve freeze: Check the compressed air moisture content is too high, the installation of air drying equipment. 5. Pump outlet bubble generation: Check the diaphragm is broken, check the clamp is locked, especially the inlet pipe clamp. 6. The product flows out from the air outlet: check if the diaphragm is broken, check if the diaphragm and the inner and outer clamping plates are clamped on the shaft. 7. Valve rattles: increase export or import lift. 8. Pump Disassembly and Reassembly Guide: WARNING: Prior to repairing a pneumatic diaphragm pump, remove the air source tubing from the pneumatic diaphragm pump and vent the air pressure from the pneumatic diaphragm pump. Remove all tubing connecting the inlet and outlet of the pneumatic diaphragm pump and drain the fluid in the pump into a suitable container. Wear protective cap, glasses, gloves. Third, the pump is not moving or operating very slowly: 1. Check the air inlet filter or air filter is there any impurities. 2. Check the air valve is stuck, with a cleaning fluid cleaning air valve. 3. Check air valve for wear and tear, replace new parts if necessary. 4. Check the center of the seal parts condition, if severely worn, you can not achieve the sealing effect, and the air will be discharged from the air outlet. Due to its special construction, use only GLYD circles. 5. Check the air valve piston activity is normal. 6. Check the type of lubricant. If the added lubricant is above the recommended viscosity, the piston may get stuck or malfunction. Recommend the use of thin and antifreeze lubricants. (ISO level 15 / 5WT antifreeze oil) Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline: 400-6030 -811)

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