Outer sliding steel jacket insulation layer of ultra-fine glass wool insulation material properties of the product: Working pipe (core tube): conduit for conveying steam. Material properties, diameter size, dimensional tolerances, minimum wall thickness in line with the relevant national or industry standards. When working tube DN≤150mm, seamless steel pipe is generally used when DN is greater than 150mm, spiral weld pipe is generally used. Protection cushion: sandwich for work to prevent pipe damage inorganic insulation displacement between the pipe and insulation work. Work spiral welded seam steel pipe, the inorganic insulating layer of hard material, a protective cushion. Carpet cushion is generally used to protect aluminum, density ≤192kg / m3, thermal conductivity at room temperature ≤0.056w (mk); plus hotline shrinkage ≤4%. Inorganic Insulation: high temperature insulation material made of inorganic insulation. Generally used in porous calcium silicate, normal thermal conductivity ≤0.055w (mk), (density ≤220 kg / m3), while the moisture content of this material, temperature resistance, strength and other indicators can meet the requirements. Organic Insulation: insulation with an organic insulating material. Generally use rigid polyurethane foam, density 60-80kg / m3, compressive strength ≥0.2Mpa, room temperature thermal conductivity ≤0.027w / (mk) v, water absorption = ≤3%, Temperature ≤140 ℃. http://www.hbxingsong.com/ http://www.ysxsbw.com/ http://www.xingsongff.com/