Our PVC Sealing Up Ring is manufactured from premium-grade PVC material, offering resistance to chemical corrosion and mechanical wear. It is engineered to deliver reliable sealing performance in a wide range of industrial and household applications. The ring’s simple yet effective design ensures a tight seal, preventing leakage of liquids or gases and enhancing the operational safety of connected equipment.
Available in multiple standard sizes—50mm, 75mm, 110mm, and 160mm—the product accommodates various fitting requirements across piping systems, valves, and containers. Each ring is precision-molded and rigorously inspected to guarantee dimensional accuracy and smooth surface finish, enabling quick and hassle-free installation without the need for adjustments.
The inherent properties of PVC ensure long-term durability under diverse environmental conditions. These sealing rings maintain their integrity in both high and low temperatures, resist moisture, and demonstrate strong resistance to aging. They remain stable and functional even when exposed continuously to water, mild acids, alkalis, or other common fluids.
Commonly used in plumbing, water treatment facilities, pumps, and storage tanks, the PVC Sealing Up Ring is ideal for connections that require regular maintenance or disassembly. Its flexible structure conforms well to uneven mating surfaces, filling minor gaps and enhancing the overall sealing efficiency of the system.
For packaging, we optimize quantity per carton based on size: 300 pieces for 50mm and 75mm, 300 pieces for 110mm, and 160 pieces for 160mm. The packaging is robust and neatly organized, ensuring safe transportation and convenient storage while protecting the product from damage during handling.

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