Lianyungang in through the glass steel composite pipe insulation pipe winding machine manufacturers we look at various heating pipes in the impact of the use of insulation pipe materials have been used in many of the current category, particularly like, prefabricated directly buried insulating pipe has in the liquid, gas pipelines, chemical control thermal insulation engineering, petroleum, chemical, centralized heating network central air conditioning and ventilation pipe, has been widely used in municipal engineering and other categories. So, today we will know of prefabricated directly buried insulating pipe of various classification methods. 1, according to the thermal insulation layer layout: (1) simple: for 150 x2 heating medium, in which type is used for 120 C below The heating of the medium, the type of high temperature application in heat medium in the 120 - 150 C. (2) composite: for in high-temperature heating medium. 2, to maintain the distinction of shell material: (1) high density polyethylene plastic shell (commonly known as the jacket) maintenance. (2) of glass fiber reinforced unsaturated polyester resin (commonly known as glass fiber reinforced plastic) plastic housing maintenance. (3) and other data maintenance of shell, such as spiral welded steel pipe, straight seam steel pipe, corrugated pipe and so on. 3, according to the insulating tube processing: (1) factory prefabricated insulation tube: pre insulated pipe production plant for processing. (2) the scene prefabricated thermal insulating pipe: This product Is in order to decrease the cost of heating pipeline engineering, foam insulation, steel construction field, and the thermal insulation shell around the glass fiber reinforced plastic after maintenance. 4. According to the thermal insulation layer and the heat medium pipe layout distinction: (1) the uncoupled heat insulation pipe, melting insulation layer and a coating layer of coated pipes between the low melting point and low grade of asphalt, heavy oil and other heating etc.After, the pipeline can alleviate the internal elastic thermal insulating layer, insulating layer and backfilling sand bar stop condition. (2) all types of thermal insulation pipe: steel pipe, insulation materials, maintenance of shell three parts firmly combined together, form a whole layout. When the steel pipe conveying medium temperature attack. Insulation blanket expansion. All types of heat pipe in the heat medium temperature below 150 DEG C occasions. Above is the glass steel pipe insulation pipe winding machine manufacturers in the pass for our analysis of prefabricated directly buried insulating pipe classification, we must according to the detailed usage of accurate selection of suitable of prefabricated directly buried insulating pipe.