FIELD: sealing systems of various turbocompressors; sealing systems of gas-transfer units. SUBSTANCE: flow limiter of sealing system is made in form of pressure drop regulator whose pressure setter is connected with suction branch pipe of turbocompressor by means of additional pipe line, thus making it possible to maintain nominal excess of pressure of cleaned gas before sealing units above suction pressure of compressor and minimum rate of flow through labyrinth and end seals under different operating conditions. EFFECT: enhanced operational reliability and efficiency. 1 dwg
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