Pipeline closed water test airbag is an important tool for water blocking of municipal sewage drainage pipes, and is widely used in leak detection projects for pipelines made of various materials. However, there are many types of pipe-blocking airbags on the market, and their quality varies. When choosing one, you are worried about whether you are buying a good airbag. Recently, I have heard many complaints from friends who are engaged in municipal engineering. Because the selection process was "unfair", the airbag finally selected not only did not work well, but also delayed the progress of the project. So this time the Rubber Air Bag Assistant will teach you how to identify the quality of the pipe closed water test air bag.
1. Tight sealing and close fit with the inner wall of the pipeline
The main function of the pipeline water closure test air bag is to seal and block water. If it cannot fit tightly with the inner wall of the pipeline, it will It is difficult to achieve ideal construction results. Therefore, the higher the fit between the air bag and the inner wall of the pipe, the easier it is for the air bag to be blocked and the better the construction effect will be.
2. Look at the material and craftsmanship
The material of a good pipeline closed water test airbag is two-rubber and one-cloth type, that is, there is a layer of fiber cloth sandwiched between two layers of rubber. Made by high temperature hot pressing vulcanization process. The surface of some airbags may appear to have some scratches, because the machine will inevitably leave some marks during processing and vulcanization, which does not affect the quality and use of the airbags. Generally, the conventional thickness of water-blocking air bags is 3mm±0.2mm (can be customized according to requirements), the tensile strength is 145N, the elongation at break is ≥350%, and the universal type is ≥485%. It is wear-resistant and aging-resistant, and can be reused many times.
3. Possessing national patents
The structural design of a good pipeline closed water test airbag is advanced and reasonable, and it has appearance design and utility patents. It is better to choose an airbag with national patented technology. Reliable.
4. With a pull ring
Whether the air bag can be used in the closed water test of the pipeline depends on whether it has a pull ring. The air bag equipped with a lifting pull ring is more convenient for workers to operate during construction.
5. High safety factor
The safety factor of the pipe rubber closed water test airbag must be high. An airbag with a low safety factor will first bring economic losses to the construction unit. Sometimes it also affects the safety of construction workers. Many people worry about whether the air bag will break easily after being inflated. In fact, a good rubber water seal is not just a single layer of rubber as imagined. When purchasing, you also need to look at its material, craftsmanship, thickness, and whether it has complete accessories. , hanging ring pull ring, etc.
6. Easy to fold, easy to transport and carry
Most construction sites and municipal pipeline construction work outdoors, with greater mobility. If the weight of the airbag for the pipeline closed water test is too heavy , which will bring great inconvenience to the construction operation. The pipeline water-closing airbag must meet the needs of rapid construction and sealing. It is light, soft and easy to fold, making it easy to transport and carry.