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      The company pays attention to talent training and talent introduction, and cooperates with Chinese Academy of Sciences Jiuzhang Technology Co., Ltd., Beijing Institute of Public Utilities Science, Beijing Institute of Coal and Heat and other scientific research institutes, colleges and universities, and constantly has senior technical personnel to colleges and universities for training and study.

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      The quality assurance department of the company has formulated strict quality assurance system documents, organized front-line workers in various departments, offices and workshops to study, and implemented a quality assurance inspection system based on self-inspection, mutual inspection between processes and final inspection by professional inspectors. Each process is produced in this process in strict accordance with the documents formulated by the technical department, and unqualified process products are not transferred to the next process. The rate of superior products has increased year by year.

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      The company will take the domestic thermal insulation pipeline enterprise as its own responsibility, and continue to carry out innovation and product research and development to meet the needs of the majority of users.

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Selection of insulation pipeline Huidong

The company produces 45000 tons of insulation pipes and pipe fittings annually.

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People-oriented science and technology enterprises

Has the international advanced polyethylene pipe production line 5.

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ABOUT US

Into the Huidong Pipeline

hebei east pipeline co., ltd is a collection of scientific research, manufacturing, sales as one of the insulation pipe, insulation pipe professional company. The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

The company was established in
2011 Year

Company established

Annual production
45000 Tons

Annual production

Registered capital
7212.5 Ten thousand

Registered capital

PRODUCTS

Prefabricated directly buried insulation pipe

Can be used to transport long-term operating temperature is not higher than 130 ℃ hot water, hot oil, cold water and other media.

same series of products

PRODUCTS

Seamless insulation pipe fittings

Polyurethane thermal insulation elbow has good thermal insulation performance, strong waterproof and corrosion resistance, can be directly buried in the ground or water, simple and rapid construction, low comprehensive cost, long service life.

same series of products

PRODUCTS

High density polyethylene outer protective pipe

It has the advantages of high strength, good toughness, good sealing, corrosion resistance, low temperature resistance, impact resistance, easy welding, easy construction, and long service life.

same series of products

NEWS

News Center

Focus on the latest developments in Huidong/focus on industry hot information

The application field of thermal insulation sleeve is very extensive, including civil, industrial and commercial use. For industrial use, the requirements for insulation sets are relatively high, because there are some poor conditions and high temperatures in the industrial environment, and most industrial plants are related to chemical materials, so the performance requirements for insulation sets are very important.

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Thermal insulation layer and anti-corrosion layer should avoid direct contact with flame. For on-site installation, please follow the following procedures: pipe trench excavation-base treatment (drainage, sand padding)-pipe laying-steel pipe welding-inspection (water pressure)-installation (pressure test)-foaming-sealing foam holes. For the installation of elbow and joint, personnel can be sent to the project site to carry out the insulation work of the joint, including the installation of the joint outer sleeve, the connection and sealing between the joint outer sleeve and the main pipe, and the foaming work of the joint, but does not include the welding work of the joint part of the steel pipe.

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Polyurethane directly buried thermal insulation pipe for heating is a combination of steel pipe for conveying medium, anti-corrosion outer steel pipe and rock wool filled between steel pipe and outer steel pipe. It can also be compounded by graphite, silicon calcium tile shell and polyurethane foam filled. Steel casing (steel casing) burying technology is a new technology of waterproof, leak-proof, anti-seepage, anti-pressure and fully enclosed burying. It is a major breakthrough in the use of direct burying technology in areas with high groundwater level.

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Buried polyurethane insulation pipe wall smooth, good drainage performance, small fluid resistance, no scaling is compared to other pipeline big advantage, can greatly reduce the loss. At the same time, the linear expansion coefficient of large-diameter thermal insulation steel pipe is very small, which makes it very advantageous as the main water pipe, which greatly overcomes the defects of other plastics and ordinary pipes with large linear expansion coefficient. Large diameter insulation steel pipe is the traditional steel pipe, galvanized pipe upgrade type of cost-effective products. It has comprehensive characteristics, that is, high strength, high elongation, good low-temperature brittleness, small expansion coefficient, and plastic pipe corrosion resistance, wear resistance, low fluid resistance and other advantages. The mature technology of anti-corrosion and thermal insulation steel pipe belongs to a new type of water supply and drainage, anti-corrosion green large-diameter pipe, which is more and more widely adopted by various industries in China. In order to reduce the heat dissipation of the pipeline to the soil, the thermal insulation composite layer is added to the outside of the pipeline. The commonly used thermal insulation material is rigid polyurethane foam, and the applicable temperature is -185~120 ℃. This material is soft and soft. In order to improve its strength, a high-density polyethylene layer is added to the outside of the insulation layer to form a composite structure to prevent groundwater from penetrating into the insulation layer. High-pressure polyurethane foaming equipment is used to carry out shot blasting derusting treatment on the outer surface of the steel pipe and corona treatment on the inner surface of the outer protection pipe to improve the bonding performance of the insulation pipe. Insulation layer material for the density of 60kg/m3 to 80kg/m3 of rigid polyurethane foam, fully filled with the gap between the steel pipe and the casing, and has a certain bonding strength, so that the steel pipe, the outer casing and the insulation layer between the three to form a solid whole. Polyurethane foam has good mechanical properties and thermal insulation properties, usually temperature resistance of 120 ℃, by modification or combination with other insulation materials can be temperature resistance of 180 ℃.

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APPLICATION

Application areas

High quality comes from the high standard of products, trustworthy.

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HVAC

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Overhead Pipeline Project

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Natural gas

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Industrial steam

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Cold preservation works

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Central heating pipe network

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Petrochemical

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Chemical Medicine

HVAC

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

View details

Overhead Pipeline Project

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

View details

Natural gas

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

View details

Industrial steam

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

View details

Cold preservation works

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

View details

Central heating pipe network

The company produces 45000 tons of insulation pipes and pipe fittings annually. It has 5 internationally advanced polyethylene pipe production lines, and adopts internationally advanced screw die extrusion, vacuum sizing, spray cooling, automatic cutting and other processes, with an annual production of 20000 tons of polyethylene outer sheath pipe.

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SERVICE

Service Support

Huidong Pipeline aims to create competitive advantages for customers and is committed to the research and application of pipelines.

Technical Data

When the project is handed over, the operator can master the system use and basic troubleshooting methods.

Sales Network

The company will provide users with a full working day of telephones technical response to help users solve any problems encountered.

After-sales service

Huidong Pipeline has mature products and solutions, contributing to the development of pipeline technology and improving core competitiveness.

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