Special wholesale prefabricated polyurethane insulation pipe professional production and customization

规格：

齐全

Full name: High-density polyethylene outer protection pipe, polyurethane foam plastic prefabricated direct-buried insulation pipe. Good insulation material should have low thermal conductivity, not deteriorate when wet, good heat resistance, no corrosion of metal, light weight and more voids It has certain mechanical strength, will not be damaged when subjected to external force, is easy to process, and is low in cost. Commonly used insulation materials include: expanded perlite and its products, glass wool and its products, rock wool products, microporous calcium silicate, aluminum silicate fiber products, foam plastics, foam asbestos, etc.
The company has strong production strength and can produce DD polyurethane insulation pipes and grade vinyl pipe production lines. It adopts vacuum sizing, spray cooling, automatic cutting, and has an annual output of tons of polyethylene outer protection pipes. The productivity of fiberglass polyurethane direct buried pipes and prefabricated steel sleeved steam directly buried pipes. &
Product specification: D
Usage: The product is widely used in urban heating pipelines, oil pipelines, and electric power.
Structural composition
The high-temperature prefabricated direct-buried thermal insulation pipe is composed of a steel pipe, a fiberglass inner sheath, and a fiberglass outer shell. It is characterized by: it also includes a high-temperature resistant thermal insulation layer, a lubricating layer, and an elastic seal. The utility model effectively solves the problems of thermal insulation, sliding lubrication and waterproofing of exposed pipe ends of prefabricated direct-buried thermal insulation pipes for high-temperature heat transmission in large towns and cities. ?
High-temperature prefabricated direct-buried insulation pipes are mainly composed of four parts.
Working steel pipes: According to the technical requirements of the transmission medium, seamed steel pipes, seamless steel pipes, and double-sided submerged arc spiral welded steel pipes are used.
Insulation layer: rigid polyurethane foam.
Protective shell: made of high-density polyethylene or fiberglass.
Leakage alarm line: When manufacturing high-temperature prefabricated direct-buried insulation pipes, an alarm line is buried in the insulation layer close to the steel pipe. Once leakage occurs somewhere in the pipeline, through the conduction of the alarm line, it can be detected in a special The instrument alarms and displays the exact location of the leak and the extent of the leak, so that maintenance personnel can be notified to deal with the leaking pipe section quickly to ensure the safe operation of the heating network.
Uses
High-temperature prefabricated direct-buried insulation pipes are widely used in liquid and gas transportation pipeline networks, chemical pipeline insulation projects, petroleum, chemical industry, central heating networks, central air-conditioning ventilation ducts, municipal projects, etc. High-temperature prefabricated direct-buried thermal insulation pipe is a direct-buried prefabricated thermal insulation pipe with good thermal insulation performance, safety and reliability, and low project cost. Effectively solves the problems of thermal insulation, sliding lubrication and waterproofing of exposed pipe ends of prefabricated directly buried insulated pipes for high temperature heat transfer in Dacheng central heating. High-temperature prefabricated direct-buried insulated pipes adopt direct-buried heating pipeline technology, marking that the development of China's heating pipeline technology has entered a new starting point.