Features: 

The product integrates the working pipe, insulation layer, heat insulation pad, rolling guide bracket,  reflecting layer, etc.. We adopt importing fiber glass insulation to keep good heat preserving effect. The product is with external sliding insulation structure, the insulating pipe and the working pipe can slide along the outer protecting pipe through the guide support, the insulation layer is under free pressure. The product is with axial and radial degrees of freedom and good thermal insulation effect , it is convenient for installation and maintenance.

 Recommend application:

District heating, District cooling, Petrochemical industry, Electric power construction, Metallurgical mines, LNG, Nuclear power and other pipe network systems with high safety requirements

 Reference standards

CJ/T 200-2004"Preformed directly buried steam insulating pipes technical-specification for heating in city "

CJJ/T104-2012 "Technical specification for directly buried  steam heating pipeline in city "

GB/T 29047-2012 " Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes"

GB/T 29046-2012 "The methods for technical specification for pre-insulated directly buried district heating pipes"

CJ/T 129-2000"Preformed directly buried insulating pipes with polyurethane foamed plastics and glass fiber reinforced plastics protect layers"

Other standards are available upon customer request