Product Introduction

The polyethylene composite pipe made of steel wire mesh and polyethylene is a new type of composite pressure pipe. It is formed by cold-rolled steel strips and thermoplastic materials through argon arc butt welding or plasma spiral welding. The multi-hole thin-walled steel pipe is used as the reinforcing body, and the outer and inner layers are double-sided bonded with thermoplastic materials. Due to the fact that the reinforcing body of the multi-hole thin-walled steel pipe is encapsulated within continuous thermoplastic materials, this composite pipe overcomes the shortcomings of both steel pipes and plastic pipes, and possesses the rigidity of steel pipes and the corrosion resistance of plastic pipes. It is a revolutionary technological achievement for solving the main water supply pipelines in buildings and municipal areas after galvanized pipes were banned. It is also an urgently needed pipe for large and medium-sized rigid pipes in fields such as petroleum, chemical industry, pharmaceuticals, food, mining, and gas, and is a new type of composite pipe in the 21st century.

Parámetro

Core Performance Advantage

1、 High Pressure & Load Resistance, Stable Structure
The nominal pressure can reach 1.6-2.5MPa, much higher than the pressure resistance upper limit of pure PE pipe, with ring stiffness ≥8kN/m², excellent creep and deformation resistance. It can withstand heavy ground loads and complex underground soil pressure, no rupture in flattening and hydraulic tests, and is suitable for both overhead and buried laying.

2、Super Anti-Corrosion, Wear Resistance
The inner and outer polyethylene layers have stable chemical properties, resistant to corrosion of acid, alkali, salt solutions and most organic media (suitable for pH1-13), no electrochemical corrosion, and wear resistance is 5 times that of steel pipe. It can transport corrosive fluids for a long time under harsh working conditions such as chemical industry and mining without regular anti-corrosion maintenance.

3、Excellent Hydraulic Performance, Low Energy Consumption
The inner wall is smooth, free from scaling and residue. The water head loss is reduced by 30% compared to steel pipes. The flow rate remains stable during long-term operation, reducing the power consumption of the water pump. No harmful substances are released, avoiding secondary pollution of the water body.

4、Light Weight & Easy Installation, Higher Efficiency
The weight of a single pipe is only 1/5~1/8 of that of a steel pipe of the same specification, and no heavy equipment is required for transportation and hoisting. It adopts electrofusion fitting connection, one-time forming without leakage, and can also be matched with flange connection. The welding process is simple, the construction efficiency is 50% higher than that of metal pipes, and the construction period is greatly shortened.

5、 Integral Fusion, Long-Lasting Durability
The steel strip skeleton and polyethylene are seamlessly fused through mesh holes, no delamination or degumming on the inner and outer walls, and excellent impact resistance.

Application scope:

In addition to the commonly used municipal and construction water supply and drainage, drinking water, return water from heating networks, natural gas, and gas transmission pipelines, it also has the following unique application purposes that other plastic composite pipes cannot achieve:

1. Urban pipe galleries: Used for water supply and drainage within urban pipe galleries, as well as conduit pipes, with broad prospects.
2. Urban construction: Standpipes for high-rise buildings, used for water supply and drainage.
3. Overhead: Used in places where it is not convenient to dig and lay pipelines, directly erected.
4. Urban heating: Produced using PE-RT heat-resistant polyethylene, the pipes are used in heating systems.
5. Thermal power projects: Process water transportation, waste residue transportation, etc.

Connection Methods

1、Electrofusion Connection
The mainstream connection method, the fitting has a built-in electric heating wire, which fuses the pipe and fitting after power on, with excellent interface sealing performance, no leakage, convenient construction, suitable for most scenarios such as buried and overhead.

2、 Flange Connection
Suitable for large-diameter pipe and equipment docking scenarios, easy disassembly and assembly, stable sealing performance, can be adapted to different material equipment connections, meeting the frequent maintenance requirements of industrial engineering.

3、Hot Melt Butting
Suitable for on-site splicing of large-diameter pipes of the same specification, the interface strength is consistent with the pipe body, impact resistance and high pressure resistance, suitable for continuous laying of long-distance pipe networks.

 Frequently Asked Questions (FAQ)

Q1 What are the core differences between this pipe and pure PE pipe, galvanized steel pipe?
A1 Compared with pure PE pipe, this product uses steel strip as reinforcement, with pressure resistance and structural stability improved by more than 3 times, meeting high-pressure and heavy-load laying needs; compared with galvanized steel pipe, it has super anti-corrosion, no rust and scaling, lighter weight, higher construction efficiency, service life increased from 10-15 years to more than 50 years, and comprehensive operation and maintenance cost reduced by 60%.

Q2 Can the pipe be used in extreme environments such as low temperature and high temperature?
A2 Yes. The product can withstand a temperature range of -20℃~85℃, maintain good toughness without brittle fracture at low temperature, and no obvious deformation or leakage at high temperature. It is suitable for extreme working conditions such as northern severe cold, southern high temperature and industrial high-temperature fluid transportation, far exceeding the temperature adaptation range of pure PE pipe.

Q3 Does the pipe need additional anti-corrosion and protective treatment for buried laying?
A3 No additional anti-corrosion treatment is needed. The inner and outer layers of the pipe are polyethylene anti-corrosion layers, and the steel strip skeleton is completely fused inside the polyethylene with no exposed metal, which can be directly used for buried laying; only in special geological environments such as rocks and sharp sand and gravel, a layer of sand and gravel cushion is laid for scratch protection.

Q4 Does electrofusion connection construction require professional equipment and personnel? Is the interface prone to leakage in the later stage?
A4 Electrofusion connection needs to be equipped with special electrofusion welding machine, and construction personnel can operate after simple training without professional welder qualification; the interface is fused into one by electric heating wire, and the sealing performance is consistent with the pipe body. As long as the construction is carried out in accordance with the specifications, there is no risk of leakage in the later stage, and no interface falling off or cracking in buried use.

Q5 What are the precautions for transportation and storage of the pipe?
A5 Avoid heavy pressure and throwing during transportation to prevent pipe deformation, and ordinary trucks can be used for transportation without heavy transportation equipment; store in a cool and ventilated place, avoid exposure to the sun and rain, the stacking height does not exceed 1.5 meters, separate pipes of different specifications to prevent extrusion deformation, no special requirements for storage period, and can be stored for a long time at room temperature.

Q6 What is the production cycle of non-standard customized pipes? Is small batch customization supported?
A6 Small batch non-standard customization is supported. The production cycle of conventional non-standard specifications is 7-15 working days; the production cycle of special specifications (super large diameter, ultra high pressure) is 15-30 working days according to the process difficulty, and urgent production can be done on demand, with real-time feedback on production progress throughout the process.