What is the process for pressure sealing?

First, open the gate valve to its maximum diameter to facilitate the insertion of the cutting blade. Next, rotate the handwheel clockwise while maintaining stable pressure. When the center aligns with the pipeline, turn the handwheel counterclockwise by half a turn. Once everything is set, start the motor after drilling through the pipeline wall, and then rotate the handwheel to the right.

Cut the power, indicating the wiring has been properly twisted. Then, continue turning the handwheel in the clockwise direction, pushing the cutting blade inward against the pipe wall. Reverse the direction, until the pressure管道is sealed. Finally, cut the power by severing the pipe wall. Turn the handle counterclockwise to retract the cutting blade to zero position, close the gate valve, and remove the drilling machine to complete the pipe sealing under pressure.

What is pressure seal plugging

1. When repairing pipelines, pressure maintenance methods are often required in many situations. Repairing under no pressure requires a different procedure. Initially, you need to prepare the required materials, such as plug-in bladders, conduit pipes, along with pressure gauges and inflation pumps, etc. Additionally, you'll need to set up supports, including pulleys and water pumps – these tools are crucial.

2. When starting up, assembly of the various components is required, inflation via an air pump is necessary, but the air pressure must not exceed 0.015MPA. Additionally, check for any air leaks, and then proceed to install the guiding device.

3. After everything is set, close the drainage outlet, place the drainage pump into the well, then gradually open the ball valve to release pressure in the pipeline. Drainage is then conducted based on the water level. Finally, use a water-blocking airbag to reach the position, and stop inflating once the specified pressure is achieved.