Products I. Introduction pipeline closure: pipe sealing unit is suitable for construction of closed water sewer detection, and pipe contained use, is the latest generation of domestic products, and has adopted a national patent, it is to repair pipes, pipe plugging Water is closed, closed dung prevent sewage outflow, the best blocking tool, the product has a reliable and labor-saving convenience features, high adhesive strength than in the past similar products, appearance is the latest generation product, the building Units years engineering practice, performance, safety and reliability, rapid plugging, welcomed by the majority of users, I plant purposes, allowing users to buy the Heart, with the assured. (In closed water experiments, make every floor for the first test shall overrun). Second, the pipeline closure device production process: Pipeline occluder, and other rubber and fabric polymer composite materials made of high temperature curing process a multi-standard, multi-shape for pipes, culverts, water supply, sewage sludge except , maintenance of special rubber products, it can block the flow of water in different diameters quickly, and different positions on different planes, it is the ideal tool for underground pipeline transport sewage drainage and silt governance. Pipeline closure device, also known as water shut off water balloon or blocking, can quickly and easily to block the flow of the pipeline, reinforced rubber tube Seth is particularly suitable for blocking drains, perform breath tests, closed water test leak search and other maintenance testing. Three, DN50 - DN500 stock, belonging to a molding process, simple structure, flexible, rapid closure. Large size pipeline closure device belongs reinforced the need to build processing, production cycle is generally 2-3 days, the product is equipped with a pressure gauge tees and convenient observation balloon pressure. (Enhanced range DN300-DN3000)