Pay attention to the demand for water plugging of purchased pipes
1. Good sealing effect and tight sealing. The water plugging is mainly stopped by friction, so the closer the connection with the pipeline, the better the water plugging effect.
2. The higher the inflation pressure, the higher the friction coefficient. After the water plugging is put into the pipeline and inflated, the outer wall that is completely propped up is bonded with the pipeline wall, and the strength of this bonding is proportional to the inflation pressure. Because when the water pressure in the pipeline is large, when the friction coefficient of the water plugging is less than the pressure of the water in the pipeline, it will be promoted in the pipeline, improving the inflation pressure and the friction coefficient, It greatly improves the success rate of water plugging.
3. The water plugging shall be easy to fold, transport and carry. Good and easy to carry water blocking products are mostly made of high-quality and soft polymer materials. Because this material has the characteristics of good water blocking effect and light weight, it is easy to fold and transport. Most of the construction of buildings and municipal pipelines are outdoor operations, with great mobility. If the weight of water blocking is too heavy, it will bring great inconvenience to the construction.
4. Due to the demand of rapid construction, water plugging must have the characteristics of cumbersome devices and easy removal.
5. High safety coefficient. A good water shutoff must have a high safety coefficient. One of the low safety coefficients is that it will bring economic losses to the construction unit and sometimes affect the safety of the construction personnel. Therefore, the safety installation such as rings, straps and skeleton information (such as cord fabric, cord, fiber) must be selected.
6. Easy maintenance. Most of them are made of flexible materials. Sometimes the covering in the pipeline is easy to scratch and puncture the surface during the construction of the pipeline, especially the municipal large-diameter construction, making the air leakage unable to be used normally. Therefore, it is requested that the design should consider easy maintenance, and the construction unit should also carefully inquire about the maintenance and home care methods when purchasing, in case of emergency needs.