FIELD: oil and gas industry.
SUBSTANCE: unit is designed to dispense and retain compressed gas pressure at consumer in dispensed cavity. Unit contains valves with electromagnetic control of supply and drainage, as well as auxiliary elements: throttle, sensor or pressure relay. In the design of the first valve there is a draining after itself, the second one is made with a direct action valve and is installed opposite to the flow direction.
EFFECT: technical result is higher efficiency of operation and simplified design.
1 cl, 1 dwg
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