Common diaphragm materials and characteristics of pneumatic diaphragm pumps

2.1 Neoprene (Neoprene)

Suitable for the transportation of non-corrosive liquids, such as sewage treatment, tap water or sea water. Has better

 cost performance and durability4.

2.2 Nitrile rubber (Buna-U)

Suitable for transportation of petroleum and oil-based liquids, such as leaded gasoline, diesel, hydraulic oil, etc. Suitable 

for conveying non-corrosive and thick slurries4.

2.3 Three yuan rubber

It has good bending life under extremely low temperature conditions and is suitable for transporting low-temperature media, 

such as environments as low as minus 51 degrees. It can also pump dilute acids or liquids with low corrosion potential 4.

2.4 Fluorinated rubber (Viton)

It has good bending life under extremely high temperature conditions and is suitable for transporting aromatic or chlorinated 

hydrocarbons and acidic liquids 4.

2.5 Polytetrafluoroethylene (PTFE)

It has good corrosion resistance and is suitable for corrosion in various media. The color is pure white and suitable for corrosive 

media with lower temperatures1.

2.6 Polyperfluoroethylene (F46)

Its corrosion resistance is better than that of polytetrafluoroethylene, its color is white and transparent, and it is suitable for corrosive 

media with lower temperatures1.