Dongying steel sleeve steel insulation pipe direct sales price

Dongying insulation pipe factory and direct sales, steel sleeve steel insulation, insulation pipe prices

*Layer: Working steel pipe layer
According to the design and customer requirements, seamless steel pipes, spiral steel pipes, and straight seam steel pipes are generally selected. After the surface of the steel pipe is treated with shot blasting and rust removal technology, the rust removal grade of the steel pipe can reach Sa2 level in GB8923-1988 standard, and the surface roughness can reach R=12.5 microns in GB6060.5-88 standard.
Second layer: Polyurethane insulation layer
It is made by injecting the original liquid of rigid polyurethane foam into the cavity formed between the steel pipe and the outer protective layer with a high-pressure foaming machine, which is commonly known as "pipe in pipe foaming".
Third layer: High density polyethylene protective layer, Lanshan District polyurethane direct buried insulation pipe manufacturer*
Dongying insulation pipe factory and direct sales, steel sleeve steel insulation, insulation pipe pricesPrefabricated black or yellow polyethylene plastic pipes with a certain wall thickness. Its functions are twofold: firstly, to protect the polyurethane insulation layer from mechanical damage caused by hard objects; secondly, to prevent corrosion and waterproofing.
1. Working steel pipe: According to the technical requirements of the conveying medium, welded steel pipes with seams, seamless steel pipes, and double-sided submerged arc spiral welded steel pipes are used.
2. Insulation layer: rigid polyurethane foam.
3. Protective shell: Made of high-density polyethylene or fiberglass.
4 Leakage alarm line: When manufacturing prefabricated polyurethane buried insulation pipes, an alarm line is buried in the insulation layer near the steel pipe. Once a leakage occurs in a certain part of the pipeline, the transmission of the alarm line can trigger an alarm on the detection instrument and display the accurate location and degree of the leakage, so as to notify maintenance personnel to quickly deal with the leaking pipe section and ensure the safe operation of the heating network.