Operation procedure for pressure tapping: Open the gate valve to the largest diameter. Rotate the handwheel clockwise to advance the cutting tool. When the center drill (bit) reaches the main pipeline, reverse the handwheel by half a turn (to prevent cutting error). Start the hydraulic pump station or motor, then slowly turn the handwheel clockwise to advance the cutting tool. Once you feel the drill has penetrated the pipe wall, disconnect the hydraulic supply or power source. After the disconnection, manual cutting can be performed, indicating that the drill has gone through.
Thread the cutting wheel clockwise for entry, then reverse half a turn after the barrel knife touches the pipe wall to prevent blade damage. Activate the hydraulic pump station or motor, and slowly turn the wheel clockwise to advance the blade. Once you feel the barrel knife cut through the pipe wall, disconnect the hydraulic supply or power source. If the handwheel does not turn after manual entry, it indicates the cutting is incomplete. Reverse the wheel half a turn, reload the hydraulic supply or start the power, and continue to slowly advance the blade. When the motor cuts off power, the handwheel can rotate to advance the blade, signifying the completion of the hole cutting.
Pressurized piercing is conducted within a completely sealed cavity, with the cutting process isolated from air, eliminating the risk of ignition or explosion, and causing no environmental pollution. The equipment allows for piercing connections without halting production, suitable for any medium except oxygen and for pipes of various diameters.
Pressure-Vacuum Hole Opening is a method of creating interfaces on pipelines and containers while they are under pressure or in use. It is used to increase branch pipelines for input or output of materials, set temperature probe monitoring points, and provide connection points for equipment (plugging equipment). Pressure-Vacuum Hole Opening is conducted within a fully enclosed cavity, where the cutting process is isolated from air, eliminating the possibility of fire or explosion, and posing no environmental pollution. The equipment allows for hole openings without production downtime, suitable for any medium except oxygen and various pipelines of different diameters. Pressure-Vacuum Hole Opening resolves traditional methods of pipeline maintenance online, such as shutdown, pressure reduction, venting, and the use of open flames, thus avoiding operational risks, enhancing safety, and making repairs quick, economical, and reliable. For many years, it has provided equipment and services to domestic urban gas pipeline networks and the oil and petrochemical pipeline industry.
