Hot Tapping

Hot tapping or pressure tapping, is the method of making a connection to existing pipeline without the interruption of emptying that section of pipe. This means that a pipe can continue to be in operation whilst maintenance or modifications are being done to it. The process is also used to drain off pressurised casing fluids.

Hot tapping is also the first procedure in line stopping, where a whole saw is used to make an opening in the pipe, so a line plugging head can be inserted.