Pneumatic diaphragm pump parts material selection configuration
The material selection and configuration of pneumatic diaphragm pump parts is a key factor affecting its performance and service life. In practical applications, the material of the parts should be reasonably selected based on the properties, temperature, pressure and other parameters of the conveying medium. It can improve the performance and reliability of the pneumatic diaphragm pump, extend its service life, and meet the needs of different industrial occasions.
The pneumatic diaphragm pump is mainly composed of key components such as pump body, diaphragm, ball valve, connecting rod shaft, etc. Among them, the diaphragm is the core component of the pump and is in direct contact with the conveying medium, so its material selection is crucial.
The material selection and configuration of pneumatic diaphragm pump parts are mainly:
1. Diaphragm material
The selection of diaphragm material should be determined according to the properties of the conveying medium. For highly corrosive media, materials with good corrosion resistance should be selected, such as rubber, polytetrafluoroethylene (PTFE), etc. For high-temperature media, high-temperature resistant materials should be selected, such as silicone, fluororubber, etc. In addition, the elasticity and wear resistance of the diaphragm should also be considered to ensure the stable operation of the pump.
2. Pump body material
The pump body is the main load-bearing component of the pneumatic diaphragm pump, and its material should have good mechanical properties and corrosion resistance. Common pump body materials include cast iron, stainless steel, aluminum alloy, etc. Cast iron pump body is suitable for general corrosive media; stainless steel pump body has better corrosion resistance and is suitable for highly corrosive media; aluminum alloy pump body has lighter weight and better thermal conductivity, suitable for conveying high-temperature media.
3. Materials of other key components
The materials of key components such as ball valves and connecting rod shafts should also be selected according to actual conditions. The ball valve should be made of wear-resistant and corrosion-resistant materials to ensure its long-term stable operation; the connecting rod shaft should be made of high-strength and corrosion-resistant materials to withstand the pressure and torque generated by the pump during operation.
