Membrane sheet
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What material is the diaphragm of a diaphragm pump made of?
It’s usually materials like polytetrafluoroethylene, I guess.
Different materials are selected depending on the operating conditions, such as fluororubber, polyethylene, polytetrafluoroethylene, metal diaphragms, etc.
Does the diaphragm bend back and forth while in operation? What are the requirements for the material of the diaphragm?
The diaphragm should be corrosion-resistant, and is generally made of corrosion-resistant rubber and thin metal sheets!
The most common type is the metal diaphragm, which appears to be made of stainless steel; this includes the diaphragms used in centrifugal pumps and the couplings of centrifugal pump units as well.
.....Diaphragm pumps do not have stainless steel diaphragms... only NBR, neoprene, fluororubber, PTFE, and food-grade rubber. It depends on the medium you will use. For details, you can ask me on QQ540992489
Nitrile rubber, neoprene, fluororubber, polytetrafluoroethylene, Teflon PTFE, silicone rubber, metal.
There are various types of diaphragms for pneumatic diaphragm pumps: food-grade diaphragms (such as those certified by FDA), Teflon diaphragms (resistant to strong acids and bases), fluororubber diaphragms (for high temperatures), nitrile rubber diaphragms (resistant to oils), neoprene diaphragms (standard type), ethylene-propylene-diene monomer rubber diaphragms (effective at extremely low temperatures), polyurethane diaphragms (wear-resistant), and synthetic materials (suitable for weak acids and bases, and serve as cost-effective alternatives to Teflon)
For polytetrafluoroethylene, it’s best to use imported products