METHOD OF ELIMINATION OF GAS LEAKS PAST FLANGED CONNECTIONS OF ROTARY VALVES IN GAS CONDUITS WITHOUT STOPPAGE OF GAS PUMPING ALONG CONDUIT

FIELD: civil engineering. SUBSTANCE: invention can be used in servicing and repair of gas conduits. Blind dummy hole is made in flange of rotary valve in which additional rotary valve is secured through which dummy hole is extended to reach interflange space or pin cup and then sealing compound is p...

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Bibliographische Detailangaben
Hauptverfasser:	PODOLJAN ALEKSANDR PETROVICH, BOBOV VLADIMIR PETROVICH, NIKOLAEV VIKTOR ALEKSANDROVICH, KOLOMEEV VALENTIN NIKOLAEVICH, MANDRA ANATOLIJ STEPANOVICH, TOMASHUK ALEKSANDR IVANOVICH, PUDRIJ SERGEJ VLADIMIROVICH, MIKHAJLOV SERGEJ BORISOVICH
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	FIELD: civil engineering. SUBSTANCE: invention can be used in servicing and repair of gas conduits. Blind dummy hole is made in flange of rotary valve in which additional rotary valve is secured through which dummy hole is extended to reach interflange space or pin cup and then sealing compound is pressure-fed into interflange space and pin cups, said pressure exceeding gas pressure in gas conduit. Then additional rotary valve is removed, and dummy hole is closed. To preclude getting out of sealing compound in process of pressure feeding, flange, pin cups and nuts from outer side of rotary valve are treated with catalyst. EFFECT: improved reliability of flange joints of rotary valves. 2 cl, 7 dwg