The working principle of the pneumatic ball valve for water plugging is to plug the inflation expansion with a high-quality pipe. When the gas pressure in the water shutoff reaches the specified requirements, the water shutoff will fill the whole pipe section, and the friction generated by the pipe will be used to block the wall and pipe, so as to block the water leakage and achieve the purpose. The standard pipe section has no purpose of leakage.
Guide for use of pneumatic ball valve
First, check whether the surface is clean, whether there is dirt attached, and whether it is intact. Fill in a small amount of air, and check whether there is leakage of each component. Only after it is confirmed that it is normal can it enter the pipeline for plugging operation.
Second, pipeline inspection: before sealing, check whether the inner wall of the pipeline is smooth and smooth, and whether there are obvious burrs, glass, stones and other sharp objects. If there are any, remove them immediately. In order to avoid piercing, place them horizontally. After Y is placed in the pipeline, do not twist it to avoid air trapping and inflation.
Third, carry out fitting connection and leakage inspection: first, connect the inflatable fitting of the walrus pipe for water plugging. After connection, use tools to check for leakage. Unfold the water blocking pipe, connect it with the accessories and inflate it until it is almost full. When the pointer of the pressure gauge reaches 0.03MPa, close the stop valve. Apply soapy water evenly on the surface to see if there is any leakage.
Fourth, exhaust the air in the water blocking of the connecting pipe, roll it up vertically, put it at the designated position through the inspection port, and then fill it through the leather pipe to the specified working pressure. During inflation, the internal pressure shall be kept uniform. During inflation, the pressure gauge shall be inflated slowly. If the pressure gauge rises too fast, it means inflation is too fast. At this time, the inflation speed should be reduced, and the stop valve should be slightly tightened to reduce the intake speed. Otherwise, if the speed is too fast, the pressure may explode too fast. Sac.
Fifth, the balloon surface should be cleaned immediately after use. After checking the surface of the balloon, the balloon can be stored without accessories.