Author Topic: Large pipe die sizes  (Read 824 times)

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Offline CLamb

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Large pipe die sizes
« on: November 26, 2017, 03:35:43 PM »
I'm looking to get 2 1/2" dies for my Ridgid 4P threader. I see dies for other threaders, such as Toledo, going for much lower prices. I'm wondering if direct substitution or substitution with shims is possible. I don't want to try precision machining the dies. However, I can't seem to find the dimensions of the various manufacturers dies anywhere online. Does anyone know of a source? Just for the record the Ridgid 4P dies are ~621.5mils parallel to the threads and ~747.9mils perpendicular to the threads.

Offline p_toad

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Re: Large pipe die sizes
« Reply #1 on: November 26, 2017, 03:48:42 PM »
Welcome to the TT forum.   Sorry i can't answer you question, but maybe someone out there knows.   :huh:

Offline Papaw

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Re: Large pipe die sizes
« Reply #2 on: November 26, 2017, 06:33:43 PM »
I welcome you also, and also have no answers for you. I bet someone will come along soon that knows.
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Online bill300d

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Re: Large pipe die sizes
« Reply #3 on: November 26, 2017, 06:59:28 PM »
I am of no help either except to welcome you.
A person who could really read human minds would be privileged to gaze on some correct imitations of chaos.

Offline Chillylulu

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Re: Large pipe die sizes
« Reply #4 on: December 07, 2017, 10:28:48 AM »
2½" -8" have the same threads.  8TPI, tapered at 3/4"/ft  (or 1/16"/inch)

Those threaders use one size of dies and cut 2½", 3", 3½", and 4" pipe threads.

We still run into 3½" pipe.

We would use them on the pipe clamped in a pipe vise.  The power was supplied through a bar about 6' long with 2 u-joints, with the other end in a 300 machine.

Old fitters would talk about being careful because if the bar with the u-joints  bound up it would flip the power machine, the vise with the pipe or both. The mayhem would stop when the set-up had flipped far enough away to pull the cord. 

Now all the power machines have foot pedal switches.