With the continuous upgrading of the pneumatic diaphragm pump, pneumatic diaphragm pump products are constantly evolving, currently on the market pneumatic diaphragm pump is divided into two types of built-in and external, people use both devices Often there will be pneumatic diaphragm pump can not be the normal operation of today Xiaobian for everyone to analyze the pneumatic diaphragm pump can not work its normal reasons, to help you better use pneumatic diaphragm pump. 1. Check the air inlet filter or air filter device for impurities. 2. Check if the air valve is stuck and clean the air valve with cleaning fluid. 3. Check the air valve piston activity is normal. 4. 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. 5. Check air valve for wear and tear, replace new parts if necessary. 6. 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. Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: Zeng Fenfen (QQ / WeChat: 2355962927) http://beng.liuti.cn/ (Service Hotline: 400-6030-811)