Pressure tank i.e. water tank, for gaseous medium in motor vehicle, has circularly rotating seal provided with U-shaped cross section and directing groove-like recess radially inward, and metallic spring ring arranged in recess of seal

摘要

The tank (1) has an extraction device (2) e.g. cylinder valve, and a circularly rotating seal (4) i.e. O-ring, provided with a U-shaped cross section and directing a groove-like recess (5) radially inward. A metallic spring ring (6) is arranged in the recess of the seal, where the seal is made of elastomer. The spring ring is made of a metallic material, and the seal is prestressed over a thread (3), where the seal has a tapered edge. An assembly aid is provided at the seal and is made of a metallic material, where the seal exhibits a rounded off cross section.