Gas cylinder valve seal leaves free space towards valve side branch socket so space faces branch socket in vent area.

摘要

The seal (2) in the valve (1) side branch socket stands clear (6) of the inner cylinder. The seal (2) in the side branch socket vent area (4) with its inside free space (6) sealably contacts the side branch and make sealing contact with the valve branch (3) in question. In a variant, the seal in the vent for the venting flow is also set clear of the valve branch specified.