DEVICE FOR CONNECTING PIPELINES TO GAS PIPE LINES OF HIGH AND MEDIUM PRESSURE WITHOUT GAS PRESSURE LOWERING

摘要

FIELD: mechanical engineering. ^ SUBSTANCE: invention refers to pipeline transport and is used for pipeline connecting to gas pipe lines of high and medium pressure without gas pressure lowering in them. Device casing is equipped with adapter flange, cup mill is fixed on spindle equipped with actuating handle. Mechanism of mill advance contains two actuator screws with different thread pitches operating in opposite directions. Cup mill advance mode switch provides accelerated or operational advance speed. ^ EFFECT: extending technical facilities arsenal. ^ 1 dwg