Insulating Structure
Composed of working steel pipes, glass wool insulation, aluminum foil reflective layer, stainless steel fastening steel strips, sliding guide brackets, air insulation layer, outer protective steel pipes, and external anti-corrosion coating.

2. Application Scope
Steam with a conveying medium not exceeding 350°C and a working pressure not exceeding 2.5 MPa.

3. Execution Standards: "Technical Conditions for Pre-fabricated Direct Burial Steam Insulation Pipes for Urban Heating" (CJ/T200-2004), "Technical Code for Pre-fabricated Direct Burial Steam Pipeline for Urban Heating" (CJJ104-2005)

4. Service Life
Due to the anti-corrosion coating on the outer sheath of this structure, the working pipe and insulation are fully protected within the outer sheath, allowing for continuous use under normal operating conditions for up to 30 years.