Pipeline sealing bag is a kind of multi-specification, multi-shape rubber product made of polymer synthetic materials such as rubber and fiber fabric by high temperature vulcanization process for pipeline, culvert water transmission, sewage, desilting maintenance. It can quickly block water flow in different pipe diameters, different planes and different positions, and is an ideal tool for underground pipeline transport and drainage and silt treatment. The models of the pipe sealing bag are: pvc air nozzle, compound closed water plug, air nozzle type closed water plug, double different inflation.
The pipe water blocking air bag is composed of air bag, pressure gauge, tee, 6 meters long special air pressure hose and pump, which can withstand the natural pressure of 2-6 floors of water in the building floor water closing test.
What are the construction precautions for pipeline sealing air bags? Let's find out.
1. Check whether the surface of the air bag is covered with dirt, whether it is intact, and fill a small amount of gas to check the parts and air bags for air leakage. Before entering the pipeline for plugging, ensure that the pipeline is normal.
2, pipeline inspection: before sealing, check whether the inner wall of the pipeline is smooth and smooth, there are no prominent burrs, glass, stones and other sharp objects, if there is immediately removed, so as not to puncture the air bag, the air bag should be placed horizontally after being placed in the pipeline, do not twist, so as not to nest the gas to blow the air bag.
3, do the air bag accessories connection and leakage check: first of all, the pipe water plugging air bag auxiliary inflatable accessories are connected, after the connection is completed, do tools to check whether there is a leak. Stretch the pipe water plugging airbag, connect it with the accessory accessories, and fill it until it is basically full. Turn off the air check valve when the pressure gauge pointer reaches 0.03MPA. Apply soapy water evenly on the surface of the airbag and observe whether there is any air leakage.
4. Please discharge the air inside the connected pipe water plugging airbag, roll it vertically, put it through the inspection port, reach the specified position, you can inflate it through the hose to the water plugging airbag, and inflate it to the specified use pressure. When inflating, the pressure in the air bag should be kept uniform, and the pressure gauge should be slowly inflated, and there is no development change, such as the rapid rising trend of the pressure gauge indicates that the inflation is too fast, at this time, the inflation speed should be slowed down, and the air check valve should be slightly tightened to reduce the intake speed, otherwise the speed is growing too fast, and the economic pressure is quickly exceeded.
5. Clean the surface of the air bag immediately after use, check that there is no attachment on the surface of the air bag, and store the air bag.
What is the use of the pipe sealing bag? Let's find out.
The pipe sealing bag is placed at the pipe entrance that needs to be blocked, and the length of the pipe discharging is the length of the sealing bag, and then the compressed air is injected into the specified pressure through the air intake valve, and the construction can be carried out. After the construction is completed, the air intake valve is opened to release the air and the pipe sealing bag is removed.
What is the scope of application of pipeline sealing airbags? Let's find out.
Pipeline sealing bag is suitable for water blocking test, gas blocking test, leak finding, pipeline maintenance temporary water blocking and other maintenance and test work.