By Charles N. McConnell
This little booklet is gigantic on solutions
Whether youвЂ™re an apprentice within the piping trades or a pro tradesperson, youвЂ™ll locate this thoroughly revised and up-to-date consultant has solutions to the questions youвЂ™ll come upon at the task.
Get present, concise proof on
- Metrics and conversions
- Tungsten inert fuel welding and arc welding
- Steam heating, scorching water, refrigeration, and air con systems
- Grooved end/plain finish piping systems
- Process piping utilizing plastics
- Automatic hearth safety systems
- Terms, BTU gasoline values, abbreviations, perspective calculations, and more
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Extra resources for Audel Pipefitter's and Welder's Pocket Manual
To close the valve, rotate the pressure-adjusting screw on each regulator to the left, counterclockwise, until it turns freely. The regulator valves must be closed before pressure is applied to the regulators. Stand to the side but where you can 34 40 60 psi 20 80 100 1 5 0 1 0 0 0 5 0 0 2 p 0 0 0 0 si 2 5 3 4 0 3 0 5 0 0 0 0 0 0 0 0 Fig. 3-1 A two-stage oxygen regulator (Courtesy Victor ® a Thermadyne ® Company) 10 15 psi 5 30 1 0 2 0 p 0 0 si 3 4 Fig. 3-2 0 0 0 0 A two-stage acetylene regulator (Courtesy Victor ® a Thermadyne ® Company) 36 Pipe Welding with Oxyacetylene and Arc see the regulator, and open the valves slowly.
The tack weld is made by playing the torch flame on both pieces, heating the metal until it is white hot, then touching the welding rod to one Pipe Welding with Oxyacetylene and Arc 41 Fig. 3-6 A chipping hammer TACK WELD ANGLE IRON SUPPORT BLOCK Fig. 3-7 Using angle iron to align pipe for welding side. A pool of melted metal will form and flow across to the other piece. Withdraw the torch and turn the pipe 180° and make a tack there. Make two more tacks midway between the first two. There are now four tacks, 90° apart, and the pipe is ready for the finish weld.
A pool of melted metal will form and flow across to the other piece. Withdraw the torch and turn the pipe 180° and make a tack there. Make two more tacks midway between the first two. There are now four tacks, 90° apart, and the pipe is ready for the finish weld. 42 Pipe Welding with Oxyacetylene and Arc Forehand and Backhand Techniques Both the forehand and backhand techniques are shown in Fig. 3-8. When the forehand method is used, the welding rod moves ahead of the torch’s tip. When the backhand method is used, the torch moves ahead of the welding rod.
Audel Pipefitter's and Welder's Pocket Manual by Charles N. McConnell