FIELD: controlling.
SUBSTANCE: invention relates to valve control. The valve control apparatus comprises a valve controller functionally connected with a first valve and a second valve. The second valve is functionally located downstream from the first valve and in series with the first valve. The valve controller is configured to control the position of the first valve and the position of the second valve based on the matched control signal received by the valve controller. The first valve is a two-position valve, and the second valve is a control valve.
EFFECT: control of multiple valves by a single controller is implemented.
19 cl, 5 dwg
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