FIELD: sealing engineering.
SUBSTANCE: device comprises two axially aligned seals to form a chamber between them, means for supplying purified gas to the inlet opening that can be opened in the direction of the inner seal facing the gas product, and means for supplying purified gas to the tank. The inner seal represents the gas seal and is interposed between the compressed gas product and chamber. The chamber between the seals is connected with the tank that is also connected with the inlet opening through the head amplifier.
EFFECT: enhanced reliability of sealing.
13 cl, 2 dwg
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