FIELD: machine building.
SUBSTANCE: compressed gas sealing system can comprise a first sealing element comprising a first plurality of O-rings having a V-shaped cross-section, the point of which is directed downward, second sealing element comprising a second plurality of O-rings having a V-shaped cross-section, the point of which is directed upward, a seal insert extending into the slot and configured to adjust a compression load applied to at least a second sealing element and a compressed gas source. First and second sealing elements can be located around the lower and upper parts of the actuating element, which passes through the slot in the control valve. Compressed gas source can be formed with the possibility of creating excess pressure in the part of the slot located between the first and the second sealing elements. Invention also discloses control valve and system of control valves with low value of fugitive emissions.
EFFECT: disclosed is compressed gas system intended for use in control valve.
16 cl, 3 dwg
