A) Fasten the valve to the pipe with the Viton seal (1) between them, centering it by means of the nylon pin (2). B) Screw the pipe drill onto the opened valve. C) Drill a hole in the pipe by turning the milling cutter using a square wrench (3) and forcing it down onto the knurled nut (4). After being drilled, the iron disc is kept inside by a magnet or by an internal point of the milling cutter. D) After drilling the hole, unscrew the bush (4) completely, take out the milling cutter and close the valve. Take away the drilling device and the branch-line piping is ready to be connected. Back to special accessories