External sliding type: the heat preservation structure is composed of working steel pipe, glass wool heat preservation and heat insulation layer, aluminum foil reflection layer, stainless steel fastening steel belt, sliding guide bracket, air heat preservation layer, outer protection steel pipe, and outer anticorrosion layer.
Insulation pipelines are widely used in liquid and gas transportation pipeline networks, chemical pipeline insulation engineering, petroleum, chemical, central heating networks, central air conditioning ventilation pipelines, municipal engineering, etc. The insulation pipe is suitable for conveying various media in the range of -50℃—150℃. It is widely used in the transportation of central heating, cooling and hot oil, and the insulation and cold preservation projects in the warm room, cold storage, coal mine, petroleum, chemical industry and other industries.