China Pumping Solutions Leader
Common pneumatic diaphragm pump diaphragm function and characteristics:
Diaphragm is the main component of pneumatic diaphragm pump, directly related to the normal operation of pneumatic diaphragm pump. Diaphragm pump diaphragms of different materials have different functions.
Fluorine rubber film: corrosion resistance is also ideal, usually can be used to transport all kinds of acidic media (including oxidizing acid liquid in the concentration), alkaline liquid, salt media, oil media, hydrocarbon media, etc. Fluorine rubber temperature resistance maximum temperature 176.6 degrees, but fluorine rubber diaphragm price is higher, if the transport medium has corrosive temperature within 80 degrees we recommend the use of PTFE diaphragm PTFE lining rubber diaphragm general butyl qing rubber diaphragm can be used, If the liquid is higher than 80 degrees within 120 degrees, we recommend that the diaphragm of the contact liquid should be PTFE diaphragm lined with rubber diaphragm inside the fluorine rubber diaphragm is the best choice.
Polytetrafluoroethylene (PTFE) diaphragm: Corrosion resistance is very good, in addition to molten lithium metal, potassium, sodium, chlorine trifluoride, high temperature oxygen trifluoride, flow rate is relatively high liquid fluorine, almost can transport all chemical liquids (which also contains concentrated nitric acid and water royal), PTFE material maximum temperature resistance to 176.6 degrees, but in the diaphragm pump products due to the diaphragm in the back and forth work, We recommend the use of temperature within 120 degrees, the prerequisite is that the pump body must be made of metal material pump body. The pump body made of plastic material, that is, the pump body made of PVDF material, can withstand the highest temperature within 93.3 degrees.
