The Internal Hydraulic Universal Pipe Cutter TVG-U is used to cut elements of oil-well tubings during repair and recovery works in the well.
The Pipe Cutter consists of adapter for connecting with engine shaft, body with blades, rod, spring, locking ring, centralizer body, centralizer liner, centralizer spring sub, sealing elements and nipple.
When the pipe cutter rotates, pressure of flushing fluid rises, the piston shifts, blades move from grooves into working position. In order to prevent fast transition of blades into working position spring and safety ring are provided. After the pipe is cut, pressure decreases, the piston goes back into initial position, blades move back into grooves. To decrease pipe cutter vibration centralizer is set at the bottom part of the tool. The centralizer consists of 3 springs, which are set on liner and secured by screws. When the pipe cutter is inserted into pipe slips move towards its walls, liner and body serve as friction bearing.
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