Threading a pipe in place involves securing it in a vise and using a pipe threader to create the threads.
Steps for Threading a Pipe In Place:
- Secure the Pipe: Loosen the jaws of a pipe vise and carefully position the pipe so the end you want to thread extends out.
- Tighten the Vise: Firmly tighten the vise to ensure the pipe is securely held and won't move during the threading process. This is crucial for creating clean, accurate threads.
- Prepare the Pipe End: Use a pipe reamer or deburring tool to remove any burrs or sharp edges from the inside and outside of the pipe end. This will help the threading die start smoothly.
- Lubricate the Pipe End: Apply cutting oil liberally to the pipe end. This reduces friction, cools the die, and helps create cleaner threads. Reapply oil frequently during the threading process.
- Start the Threading Die: Position the pipe threader die head squarely onto the pipe end. Apply firm, even pressure as you begin turning the threader handle.
- Thread the Pipe: Continue turning the threader handle in a clockwise direction (for right-hand threads). Maintain consistent pressure and continue applying cutting oil.
- Check the Threads: Periodically check the threads for depth and quality. Use a pipe thread gauge to ensure the threads meet the required specifications.
- Reverse the Threader: Once the desired thread length is achieved, reverse the threader handle to remove the die head from the pipe.
- Clean the Pipe: Clean the newly threaded pipe end with a wire brush to remove any metal shavings or cutting oil residue.
Important Considerations:
- Proper Vise Selection: Ensure you use a pipe vise designed to securely hold pipes without damaging them.
- Cutting Oil is Essential: Never thread a pipe without cutting oil. It's crucial for a clean and accurate thread.
- Threader Quality: A high-quality pipe threader will make the job easier and produce better results.
- Thread Size: Use the correct die size for the pipe you are threading.
By following these steps, you can effectively thread a pipe in place.
