It is a spring energized seal with a sharp sealing lip. Material is a PFTE-compound.
Our supplier has recommended a special design with two or three sealing-lips, which will hopefully have a longer operation time!
I'm trying to improve a fluid application gun. The sealing I'm using for the needle (diameter 2,5mm) starts to leak after about 10 million strokes. It is a spring energized seal.
Does anyone know seals which have a longer lifetime? I have a fluid pressure up to 80 bar and a temperature of max...