This product is made from modified PP material: its inner wall is smooth, while the outer wall has a unique annular corrugated pattern, with a hollow space between the inner and outer walls.
Heat-resistant insulation, safe and reliable: The main material of the pipe is modified polypropylene, which has good insulation performance and can maintain good external pressure resistance even at high temperatures, making it suitable for use as a sheath pipe for high-voltage power lines. Tensile and pressure resistant, combining rigidity and flexibility: It has stronger tensile and external pressure resistance and good flexibility. The connection uses a clamp seal connection, which is convenient and reliable. Low temperature resistance, suitable for winter construction: As modified polypropylene, it has good low-temperature impact resistance. In most parts of southern China, construction can be carried out for most of the year. Reliable quality, cost savings: Light weight, density is only 0.9-0.92g/cm3, which is the lightest material among all buried pipe materials, greatly reducing transportation costs and installation hoisting costs; at the same time, under the same load conditions, HFB corrugated pipes only need a thinner pipe wall to meet the requirements, saving 40-70% of material costs compared with solid wall pipes with the same ring stiffness requirements; the comprehensive cost is basically the same as that of PVC double-wall corrugated pipes and fiberglass reinforced pipes, but the performance is superior. The construction connection adopts pipe coupling or hot melt welding, and there is basically no engineering maintenance cost.
IFB inner flat-wall corrugated electrical conduit, also known as CM composite reinforced double-wall corrugated electrical conduit, features a novel and unique structural design. It offers low frictional resistance, good flexibility, high-temperature resistance, high ring stiffness, and resistance to breakage and aging. Its hollow annular structure between the outer walls fully utilizes the principle of I-beam structure, increasing the section moment of inertia. The inner wall is very smooth, improving the efficiency of wire pulling. The product is widely used in excavation power projects and can replace HFB single-wall corrugated pipes, C-PVC electrical conduits, PVC-U communication conduits, and fiberglass pipes. The service life of this conduit is more than 50 years.
1. High tensile and bending strength 2. Good rigidity and toughness 3. High heat resistance 4. Strong corrosion resistance 5. Light weight and easy construction
1. Excellent heat stability and impact resistance. 8760-hour testing under 110°C and 1.9 MPa environmental stress, according to international standards, revealed no leakage or damage to the pipe. PE-RT pipes avoid friction and impact during installation, offering high cost-effectiveness. 2. Lightweight, long service life, good flexibility, and easy bending. Compared with XPAP, PPR, and PEX plastic pipes, it features hot-melt welding, reducing the need for electrical pipe joints, good low-temperature resistance and flexibility. The bending radius can be as small as 5 times the outer diameter of the pipe, and cold brittleness will not occur during winter construction. Moreover, the pipe is sufficiently soft for easy installation. 3. Environmental friendliness and long service life. PE-RT pipes buried underground exhibit good stability, are non-corrosive, and resistant to damage, resulting in a long service life and reduced maintenance and replacement costs. PE-RT is recyclable and environmentally friendly.
Kongwang steel strip heat-resistant polyethylene prefabricated insulated pipe is a new type of heating pipe. It consists of a working pipe (including fittings), a rigid polyurethane foam insulation layer, and a polyethylene protective shell tightly combined. Because the three become one, buried directly in the soil, the thermal expansion stress caused by the temperature change of the inner pipe is transferred to the outer protective pipe through the polyurethane insulation layer, and the soil friction force on the outer protective pipe is also transferred to the working pipe through the polyurethane insulation layer, using the soil friction force to limit the thermal expansion of the pipe. This requires the polyurethane to have not only insulation function but also a certain compressive and shear strength.