FIELD: mining.
SUBSTANCE: load chamber consists of case secured on portal of pipe, flange-plug and gasket fastened to flange-plug. Also the gasket consists of a case with horizontal openings and a packing screw connected by means of thread; the gasket has a vertically oriented through opening. A relieving-supporting bushing is assembled in the case of the gasket; the bushing has horizontally oriented openings connecting the through opening with horizontal openings made in the case of the gasket. A packing washer and metal washer are arranged over the relieving-supporting bushing; the metal washer contacts the packing screw, when it is screwed into the case of the gasket. Two metal washers are located under the relieving-supporting bushing; a packing washer is inserted between these two metal washers, also the lower metal washer is rigidly installed in the case of the gasket.
EFFECT: expended functional properties and increased reliability of device performance during process operations in wells with high pressure.
3 cl, 3 dwg
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