Quad ring, imperial, viton, black, 70-75A shore, 2-022, 1.78 x 25.12 mm, Dichto.

Quad-Rings are four lipped seals with a specially developed sealing profile which are characterized by their annular form with a four lipped profile. They have almost the same sealing principle as the O-ring however provide less friction than the conventional O-ring. There is no spiral twist which eliminates the tendency to roll in the groove. The sealing is achieved by the diametrical squeeze in a right angled groove. The system pressure creates a positive sealing force.