working a pipe threader?

Question

Any info on tips or operation of a electric threader.
Is this a hard machine to use. Thanks

Answer 1

Its basically pretty easy to do . I assume you will be using a ridgid brand threader.

Long pipes will have to be supported at the end leaving the threader. Pipe lenghts of arround 4 feet you do not need the support stand.

Keep the threads well lubricated when cutting to keep the die teeth cool.

Don't over thread... pipe threads are tapered at 3/4 inch per foot. The male and female threads are both tapered so the joint becomes a crush fit to seal the joint. (pipe dope is also recommended either teflon tape or rector seal #5)
The depth of the die cutting teeth are set at this taper. If you thread beyond this depth then the extra depth leaving the die will not have a taper and can bottom out in your fitting before properly engaging and sealing the joint.

The ridgid threader has a quick release on the threading attachment. The teeth are brought into cutting position with the lever. as the die nears the completion of its cut you stop the cutting by opening the teeth with this lever and stopping the maching. There should be a foot switch to start the motor, also make sure thatthe direction switch is set to forward.

Cutting teeth need to swapped for different size pipes. consult a thread chart for the proper pitch. The quick release threader attachment also has an adjustment for pipe size. The same pitch can be use on several sized pipe. Also make sure that all three sets of cutting teeth are the same size (pitch)


The first operation is usuall cutting the pipe to lenght.. this can be done by having the machine turn the pipe and operate the cutter braced against the rails.
After the pipe is cut the pipe inside diameter is reamed out with a tapered reamer to remove chips and create a smooth surface.

The pipe end is then threaded