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DIN Profile Rings also known as DIN 3869 or D Rings are used as axially static soft seals . Common applications include construction machinery, hydraulic presses, injection machines, fittings, hydraulic valves, and threaded tube connections in general industry.
This section if for D rings made of NBR material.
The special shape of Profile Rings enables them to be used in high-pressure applications typically on threaded connections or valves.