SDR9 high pressure water pipe 1, Specification of HDPE high pressure water pipe The raw material of SDR9 high pressure water pipe is HDPE. HDPE resin is a high-density polyethylene with excellent chemical stability, resistance to aging and environmental stress cracking. Applicable temperature range -40 鈩?40 鈩? strong pressure capacity, and has good comprehensive mechanical properties. 2, The characters 1. Corrosion resistance-PE is an inert material that can resist the erosion of various chemical media; 2. No leakage- HDPE adopts electric hot melt connection, hot melt butt joint, hot melt socket connection, and its interface strength is higher than that of the pipe body; 3. High toughness- HDPE elongation at break generally exceeds 500%, adaptability to uneven settlement of the pipe base is very strong, and seismic performance is excellent; 4. Excellent resistance to slow crack growth (SCG) and rapid crack growth (RCP); 5. Excellent flexibility and anti-scratch ability; 6. Strong abrasion resistance, low friction coefficient of the pipe wall, small flow resistance, and strong conveying capacity; 7. A variety of non-excavation methods can be used, which is very convenient for construction and installation; 8. The system cost is low and the maintenance cost is low, which can greatly reduce the engineering cost; 3, The installation of hot-melt butt welding Operation steps: 鈥?/p> 1. Place the two PE pipes to be installed and connected on the hot-melt fixture at the same time (the fixture can change the clamp block according to the pipe diameter to be installed), and the other end of each pipe is held up to the same level with a pipe bracket . 鈥?/p> 2. Cut the ends of the pipes with an electric rotary knife to ensure that the contact surfaces of the two pipes can be fully matched. 鈥?/p> 3. Raise the electric heating plate to 210鈩? place it in the middle of the end faces of the two pipes, and operate the electro-hydraulic device to make the end faces of the two pipes and the heating plate completely contact and heat at the same time. 鈥?/p> 4. Remove the heating plate and operate the hydraulic device again to fully butt the end faces of the two pipes that have been melted and lock the hydraulic device (to prevent rebound). 鈥?/p> 5. Keep a certain cooling time to release, the operation is completed. 鈥?/p> 6. After the construction is completed, the buried test can only be put into use after passing the pressure test and acceptance. 4, Company 5, Contact us HDPE Pipe website:http://www.olivepipecn.com/plastic-pipe/hdpe-pipe/