PREPARING PIPING MATERIALS
Use the following steps to prepare a galvanized steel pipe for a joint connection:
Cutting the Pipe. Place the pipe in a vise with the measured mark about eight inches from the vise. Set the cutting wheel on the mark and turn the cutter handle to get a bite on the pipe. To cut the pipe, turn the cutter clock wise and apply the cutting oil to the cutting wheel. After each complete turn, give the handle a quarter turn until the pipe is cut.
USING A PIPE CUTTER
Removing Burrs. Push the reamer into the pipe and apply pressure with one hand. With the other hand, turn the reamer clockwise using short even strokes until all the burrs are removed from the cut end. Use a fine metal file to remove burrs from the outside of the pipe.
Threading Pipe Ends. Insert the correct size die into the die stock. Slide the die stock over the pipe and apply pressure with one hand. With the other hand, turn the stock handle slowly clockwise until the die has taken a bite on the pipe. Apply cutting oil to the die as the stock handle is given one complete clockwise turn and backed off a quarter turn. Repeat this action until 1/4 inch of the pipe is beyond the die stock. The pipe is now threaded properly. Turn the handle in a counterclockwise direction to remove the pipe.
Use the following steps to prepare copper tubing ends for joint connections:
Cutting the Pipe. Hold the tubing with one hand and set the cutting wheel on the mark. Turn the knob until the wheel takes a bite on the tubing. Turn the cutter clockwise around the tubing and turn the knob at the same time to cut the tubing. To make a square cut on the tubing, use a fine-tooth blade on the hacksaw and use a miter box.
Removing the Burrs. Push the reamer blade into the tubing and turn the tubing clockwise with even strokes.
Preparing for Soldered Joints. Use emery cloth to clean the tubing's end to a bright shine. Use the same procedure to clean the inside of the fitting.
Preparing for Swaged Joint. Slide the tool into the tubing and hold the tubing and the tool with one hand. Place the hammer in the other hand and hit the tool until the pipe end is swaged. Use a swaged joint to join two pieces of thin-walled copper tubing without using a fitting. The swaged end is the size of a regular copper fitting.
Preparing for Flared Joint. With a flaring tool, first slide a flange nut onto the tubing. Open the yoke by loosening the wing nuts; then place the tubing in the proper size hole, and tighten the nuts. Insure the tubing is level with the top of the yoke. Turn the cone down into the tubing until it fills the bevel in the hole. The tubing is now flared.
Preparing with Flanging Tool. First slide the flange nut onto the tubing. Hold the tubing and flange nut in hand. Center the flanging tool in the tubing and tap it with a hammer until the flare fills the recess in the flange nut.
Preparing Joint Connections. Use the following steps to prepare rigid, plastic, and flexible pipes' ends for joint connections.
Remove burrs from the pipe's cut ends with a knife or sandpaper.
To prepare the ends of a plastic pipe for a cemented solvent weld joint, sand the pipe ends to remove the pipe gloss.
|Primary Content Provider: U.S. Army
Publisher: SweetHaven Publishing Services
Copyright © 2005, SweetHaven Publishing