Back-up rings are manufactured from extrusion resistant material as protection and support elements, normally with a rectangular cross-section. For static applications they are used together with an elastomer seal – usually an O-ring – placed in the groove. Because there is a tight fit between back-up ring and bore hole or rod it prevents the O-ring from extruding into the sealing gap under pressure.

Double acting seals for static and dynamic applications, suitable for various materials, such as nitrile rubber (NBR), fluororubber (FKM), ethylene propylene rubber (EPDM), neoprene, silicone, fluorosilicone rubber, etc, Comply with ISO 3601, as 568 and other recognized standards...

The rubber ball is suitable for use in the petroleum industry where there is contact with hydraulic fluid, gasoline, water, silicone oil and other media. It is resistant to high temperature and has excellent weather resistance, ozone resistance and chemical resistance.

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