Our company is a professional thermal Insulation pipe factory, we also have produced a lot of gas pipeline spiral steel pipe and spiral pipes. Our products have met with a warm reception in many country. What’s more, our products have obtained favorable comments from customers. Then let me introduce them to you.
Thermal insulation pipe is the abbreviation of thermal insulation pipe. Thermal insulation pipe is used for the transportation of liquid, gas and other media. It is used for thermal insulation of pipelines in petroleum, chemical industry, aerospace, hot spring military, central heating, central air conditioning, municipal and other thermal insulation projects. Internal sliding type: thermal insulation structure consists of working steel pipe, aluminum silicate, drag reduction layer, microporous calcium silicate, thermal insulation layer, stainless steel fastening steel belt, aluminum foil reflective layer, polyurethane thermal insulation layer, outer steel pipe and outer anti-corrosion layer. The internal sliding type heat preservation steel pipe is composed of a steel pipe conveying medium, composite silicate or microporous calcium silicate, rigid polyurethane foam plastic, an outer steel pipe and a glass fiber reinforced plastic shell anti-corrosion protective layer structure. All kinds of pipe joints have mature heat preservation technology and reliable quality. External sliding type: thermal insulation structure consists of working steel pipe, glass wool thermal insulation layer, aluminum foil reflective layer, stainless steel fastening steel belt, sliding guide bracket, air thermal insulation layer, external protective steel pipe and external anti-corrosion layer. Spiral steel pipe is a spiral seam steel pipe made of strip steel coiled plate as raw material, which is often extruded and formed at high temperature and welded by automatic double-wire double-sided submerged arc welding process. Using advanced double-sided submerged arc welding technology, welding can be realized at the best position, and defects such as edge misalignment, welding deviation and incomplete penetration are not easy to occur, and welding quality is easy to control.
The standard of spiral steel pipe is divided into 9711 and API. It is necessary to carry out flaw detection tests and ensure flaw detection. Steel pipes at the outlet need to be painted and beveled. It is convenient for steel pipes to be welded and connected during construction. The purpose of painting is a simple anti corrosion procedure. The standard of spiral steel pipe for natural gas pipeline is gb9711 and API. Need to carry out flaw detection tests, enterprises need to ensure flaw detection. Steel pipes at the outlet need to be painted and beveled. It is convenient for steel pipes to be welded and connected during construction. The purpose of painting is a simple anti corrosion procedure. Design and produce steel pipes with new structures, such as double-layer spiral welded pipes, i.e. double-layer pipes welded with strip steel half the thickness of the pipe wall, not only have higher strength than single-layer pipes with the same thickness, but also do not suffer brittle failure. Vigorously developing coated pipes, such as coating the inner wall of the pipe with anticorrosive coating, can not only prolong the service life, but also improve the smoothness of the inner wall, reduce the friction resistance of fluid, reduce wax and dirt accumulation, reduce pigging times and reduce maintenance costs. The development of new steel grades, improvement of smelting technology, production and welding of spiral welded pipe with good quality, extensive use of controlled rolling and residual heat treatment process after rolling, in order to continuously improve the strength and toughness of the pipe body and welding performance.