Tool and method for safe removal of valves fitted in fluid pipes

A method for safely removing valves illicitly installed in fluid tubing, comprising the following steps:

• a. determining the diameter of the valve located in the tap to be removed;
• b. measuring the distance between the outer edge of the line and the most external part of the valve to be removed and between the pole and the edge of the valve inner ball;
• c. selecting the adequate adaptor for the valve to be removed (dual thread element for diameter reduction and the nipple) and assembling it on the tool;
• d. selecting the calibration gauge to be used for determining the perforation diameter, for example for a one inch valve (2.45 cm) the following gauges will be used 1 in. (2.45 cm), 0.937 in. (2.38 cm), 0.875 in. (2.22 cm), 0.812 in. (2.06 cm), 0.750 in. (1.9 cm), 0.687 in. (1.74 cm), 0.625 in. (1.58 cm), 0.562 in. (1.42 cm) and 0.500 in. (1.27 cm) which are the diameters probably used to make the perforation;
• e. installing the measuring gauge on the tool;
• for the example of a 1 in. (2.54 cm) valve, we start installing the 0.750 in. (1.9 cm) gauge on the tool, but it can be started with the major diameter and going down or vice versa;
• f. measuring the distance between the duct surface and the edge of the valve body (Distance 1);
• g. then, internally measuring the distance between the bottom of the valve and the outer edge of the valve (Distance 2). The difference between distance 1 and distance 2 (Distance 3) is calculated;
• h. opening the drainage valve keeping the valve to be removed closed, then installing the tool (main body (1) and valve adaptor) screwing into the valve to be removed;
• i. introducing the axle of the handle of tool onto the valve to be removed, until the measuring gauge contacts the top part of the ball of the illicit valve;
• transporting and marking the distance 3 in the axle of the tool, this mark 3 will indicate when the gauge tip is at the edge of the perforation;
• j. next to mark 3, another line is drawn in the axle of the tool 8 cm apart from it (mark 4). This mark corresponds to the 8 cm height of the cone piece in the edge of the perforation, during the introduction of the “calaján”;
• k. then, another line is drawn (mark 5) on the tool axle two centimeters apart from mark 4;
• this is the indication that the cylinder part of the measuring gauge has passed on through the illicit perforation;
• l. closing the drainage valve of the tool;
• m. holding the handle axle of the tool and slowly opening the illicit valve;
• n. pushing the handle axle of the tool towards the illicit valve until the last line (mark 5) disappears in the gasketing carrier of the tool;
• this means that the cylinder part of the gauge passes through the hole;
• and
• o. drawing back the axle of the tool to its initial point and closing the illicit valve.