Kangyu HDPE electrofusion pipe fittings are specially developed for municipal water supply and drainage, gas transmission, sewage pipe networks, and trenchless projects. They are suitable for all HDPE solid-wall pipes and can meet the harsh working conditions of medium and high-pressure fluid transportation. It is made of new high-density polyethylene raw materials and is injection molded in one piece. It has outstanding weather resistance, aging resistance, acid and alkali corrosion resistance, and geological settlement resistance. The pipe network system has a stable service life of up to 50 years, and the long-term underground service performance is reliable.
The product has excellent temperature and weather resistance. It has a balanced rigidity and toughness under high and low temperature environments. It is not prone to cracking and deformation due to repeated changes in temperature differences. It can resist soil chemical media erosion and groundwater corrosion. Using professional electrofusion welding technology, it is fused with HDPE pipes as a whole. The welding interface has high fusion and strong tensile strength, completely eliminating the risk of interface leakage and detachment. The inner wall of the pipe fittings is smooth and smooth, with low water transportation resistance, no scale accumulation, and no growth of attachments, which reduces the energy consumption of medium transportation and greatly reduces the later inspection and maintenance costs of the pipe network. It is widely used in municipal pipe networks, park sewage discharge, landscaping irrigation, industrial and mining fluid transportation and other projects.
The products strictly follow the national industry implementation standards and are suitable for dn20mm-dn400mm full-specification HDPE pipes. They have complete categories such as elbows, tees, directs, flanges, and pluggings, and are extremely versatile and interchangeable. It has excellent resistance to impact, crushing, and uneven settlement, and can cope with severe construction conditions such as heavy vehicle pressure, soil displacement, and complex geology. It is easy to install and has a high degree of freedom in laying. It is suitable for various construction techniques such as direct burial, trenchless directional drilling, trench laying, and overhead erection. It is the preferred electrofusion pipe fitting for municipal rainwater and sewage diversion pipe networks, long-distance water supply pipelines, underground gas transmission, and old pipe network renovation projects.
Excellent temperature and weather resistance, long-term stable operation all day long
Injection molded using new raw materials of high-density polyethylene, it can provide long-term stable service in the range of -40°C to 60°C, and can withstand medium temperatures of 70°C in the short term. It is suitable for municipal water supply, rain and sewage drainage, underground gas, chemical fluid transportation and other scenarios; it complies with GB/T 13663.2, ISO 4427, and ASTM D3350 standards.
Outstanding creep resistance, no deformation under pressure for a long time
The pipe fittings have excellent resistance to environmental stress cracking and creep resistance. They are not easy to deform and relax under long-term buried pressure and soil stress. They have strong structural stability under long-term pressure operation and ensure that the pipe network will not deform in continuous service for decades; it complies with EN 12257 and ISO 9080 standards.
High toughness, impact resistance, no brittleness at low temperature, resistance to settlement
The product has a high balance between rigidity and toughness, excellent tensile resistance, rolling resistance, and external impact resistance. It is not brittle or cracked in the extremely cold low temperature environment of -40°C. It can withstand uneven settlement of foundations, heavy vehicle pressure, and the impact of hard objects backfilled in pipe trenches. It is suitable for severe cold areas in the north and complex geological burial conditions; it complies with GB/T 19472 and EN 727 standards.
Strong resistance to chemical corrosion and wide media compatibility
It can withstand the erosion of sewage acid and alkali media, soil corrosion, groundwater salinity, and chemical mildly corrosive fluids. The inner and outer walls of the pipe fittings will not rust, oxidize, or be swollen and corroded by the medium. The performance is stable under long-term transportation conditions; it complies with ISO 4433 and ASTM D1693 standards.
Electrofusion welding, interface sealing and zero leakage
Adopting a special electrofusion welding process, it is melted and integrated with HDPE pipes at the molecular level. The welding strength is higher than that of the pipe body. It has strong resistance to pull-out and internal pressure. It will not detach and seep under conditions of pressure fluctuations and temperature alternations, completely solving the pain point of leakage in pipe network joints. It complies with DVS 2201 and EN 12814 standards.
Linear expansion coefficient matching, high stability of direct buried laying
The thermal expansion coefficient is highly consistent with that of HDPE pipes. Thermal expansion and contraction are synchronized during direct burial, non-excavation, and pipe gallery laying, which greatly reduces stress and pull damage within the pipe network and improves the overall safety factor of long-distance buried pipe networks; it complies with GB 50236 and ISO 10460 standards.
The inner wall is smooth and has low resistance, saving energy and reducing consumption during transportation.
The inner wall of the pipe is smooth and flat, with minimal friction resistance. It is not easy to accumulate sediment, debris and scale, which reduces the power loss of the water pump, improves the water supply, drainage and gas transportation flux, and lowers energy consumption in long-term use; it complies with ISO 10838 and AWWA C906 standards.
The raw materials are clean and hygienic and can be used to transport drinking water.
Produced from new pure HDPE granule raw materials, no recycled materials are added, no heavy metals and harmful substances are precipitated, and the hygienic indicators meet the standards. It can be safely used in municipal tap water and residential drinking water delivery pipe networks; it complies with GB 4806.7 and NSF/ANSI 61 standards.
Complete specifications and categories, efficient and convenient construction and installation
A full range of elbows, tees, straights, flanges, plugs and reducing pipe fittings are available, covering the full diameter of dn20-dn400, and are universally interchangeable with national standard HDPE pipes. One-click welding with an electrofusion welder is easy to operate and greatly shortens the construction period on the construction site; it complies with GB 50268 and EN 12201 standards.
Ultra-long service life and extremely low post-operation and maintenance costs
It is resistant to aging, ultraviolet rays, and soil microbial erosion. The buried design service life is ≥50 years. It does not require anti-corrosion and anti-rust treatment and is almost maintenance-free. It greatly reduces the cost of later inspection, replacement, and repair of the pipe network; it complies with GB 50235 and ASTM F1807 standards.
