Its structure is in the form of a 90-degree standard elbow, with one end having a larger diameter and the other end having a smaller diameter, achieving a smooth flow channel transition, effectively reducing the turbulence and pressure loss caused by the medium during turning and changing diameters, and improving the overall conveying efficiency of the system.
The inner wall of the product has been processed through precision extrusion process and has a smooth and burr-free surface, which not only reduces the risk of dirt deposition and clogging, but also enhances the smoothness of drainage or fluid transmission. The outer wall has regular shape and accurate dimensions, ensuring close connection with the same series of PVC pipes and other accessories. All specifications comply with relevant national standards to ensure sealing and structural strength after installation. Common specifications include D50×40, D75, D110 and D160, which are suitable for pipeline systems of different sizes. They can be matched from small residential drainage to large industrial pipelines. The number of packaging per box is reasonably configured according to the diameter and size, which is convenient for warehousing and construction management.
During the installation process, it is recommended to use a special PVC solvent glue for insertion connection to form an integrated sealing joint through chemical fusion to avoid leakage. The process is easy to operate, no complex equipment is required, and is suitable for rapid on-site assembly. Because PVC material is lightweight and high-strength, the elbow is not easily damaged during handling and installation, reducing the construction loss rate. Its shrinkage design is particularly suitable for pipe layout optimization in connection with main pipes and branch pipes, matching pump body inlet and outlet, or space-constrained areas, which can effectively save space and simplify the layout of the pipeline network.

Shanghai Pirsa Pipe Industry Co., Ltd. was established in 2003. We have two production bases located in Shanghai, China and Zhoukou, Henan Province, with cooperative bases covering Fujian, Anhui, Yunnan, Chongqing, and Shenyang in China. The factory covers an area of 100000 square meters; Over 100 production lines with an annual production capacity of 100000 tons and an annual sales revenue of 600 million RMB.
The products include PP-R, PE-RT, PE water supply pipes PB、 Nearly a hundred series of products including stainless steel drinking water pipes, HDPE drainage pipes and double wall corrugated pipes, PVC-U drainage pipes and electrical conduit, PVC-C high and low voltage power pipes, switch sockets, bathroom plumbing, and pre purified water.
The company was established in 2003
Factory area of 100000 square meters
Over 100 production lines