Pneumatic diaphragm pump damage how to repair
Sectional Diverter Control Valve Jiangsu haohong hydraulic Co.Ltd , https://www.jshhhydraulic.com
　　
WARNING: Before repairing a pneumatic diaphragm pump, remove the air source tubing from the pump and vent the air pressure in the 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
　　
Pneumatic diaphragm pumps do not move or work slowly:
　　
1. Inspect the filter or air filter at the air inlet for 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 grade 15 / 5WT antifreeze oil
　　
Pneumatic diaphragm pump is a new type of conveying machinery, is currently the most novel kind of pump. The use of compressed air as the power source, for a variety of corrosive liquids, with particles of liquid, high viscosity, volatile, flammable, highly toxic liquids, can be smoked exhausted.
　　
Pneumatic diaphragm pump has four kinds of materials: engineering plastics, aluminum, cast iron, stainless steel. Pneumatic diaphragm pumps are based on different liquid media were nitrile rubber, neoprene, fluorine rubber, PTFE, polyhexamethylene. To meet the needs of different users. Placed in a variety of special occasions, used to pump a conventional pump can not be aspirated medium, have achieved satisfactory results.
　　
As the pneumatic diaphragm pump has the above characteristics, so the pneumatic diaphragm pump since its inception has been gradually invaded other pump market, and take up some of them. Such as: paint, ceramic diaphragm pump has occupy an absolute dominance, while in other industries, such as environmental protection, wastewater treatment, construction, sewage, fine chemicals is expanding its market share and have other pumps Alternative status.
　　
Pneumatic diaphragm pump action, but the flow is small or no liquid out:
　　
1. Check the cavitation of the pneumatic diaphragm pump and reduce the speed of the pump to 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.
　　
Pneumatic diaphragm pump air valve Icing:
　　
Check the compressed air moisture content is too high, the installation of air-drying equipment
　　
Pump pneumatic diaphragm pump outlet bubble generation:
　　
Check the diaphragm is broken, check the clamp is locked, especially the inlet pipe clamp.
　　
Media flows out of the air vent:
　　
Check the diaphragm is broken, check the diaphragm and the clamp inside and outside the clamp on the shaft
　　
Valve rattles: increase export or import lift.