KEF develops fuel pump diaphragms for aviation jet engine

This was no easy task. Diaphragm thickness and diameter are 0.025″±0.004 and 2.840″ respectively with nylon cloth inside. 
aerospace diaphragm
The three-layer structure is created by compression molding on both sides of a nylon cloth with special rubber that we have developed. This diaphragm sends fuel to the engine using pressure fluctuation –very thin. However, high durability is required.