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Priority to DD18338474ApriorityCriticalpatent/DD119854A1/xx
Publication of DD119854A1publicationCriticalpatent/DD119854A1/xx
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L29/00—Joints with fluid cut-off means
F16L29/007—Joints with cut-off devices controlled separately