Steel sleeve steel insulation pipe

The steel sleeve steel insulated steel pipe is divided into three layers from inside to outside.

First floor: working steel pipe

Seamless pipe (GB8163-87) spiral welded pipe (GB9711-88; SY / T5038-92) and straight welded pipe (GB3092-93) are generally selected according to design and customer requirements. After advanced shot peening rust removal process, the steel tube surface rust removal grade can reach the Sa2 level of GB8923-1988 standard, and the surface roughness can reach the R=12.5 micron of GB6060.5-88 standard.

The two level: insulation layer.

Materials: aluminum silicate, centrifugal glass wool compound

Thermal conductivity at room temperature: less than 0.045w/m. degrees C

Bulk density (dry): 100 ~ 150kg/m?

Usage temperature: -40 C ~ 800 C

Third floor: anticorrosive steel pipe