Small-caliber pipeline rapid maintenance under-pressure plugging sealing cylinder

An under-pressure plugging sealing cylinder for rapid maintenance of a small-caliber pipeline relates to a pipeline maintenance sealing cylinder, and is characterized in that the outer side of a cylinder body is provided with an expansion tile used for expanding outwards, a positive and negative rot...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN HAO, CAO XUANHE, LIU YANG, MA CHENGMIN, LI XUDONG, WANG XIAOYANG, SHI JIDONG
Format:	Patent
Sprache:	chi ; 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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