Author Topic: Tool for grooving stainless steel tubing?  (Read 263 times)

Offline Saccharomyces

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Tool for grooving stainless steel tubing?
« on: February 15, 2021, 08:59:14 PM »
Does anyone know what the tool that is used to groove metal tubing for o-rings is called?  I look like a tubing cutter with a specialized wheel could do the job.

Online denny

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Re: Tool for grooving stainless steel tubing?
« Reply #1 on: February 15, 2021, 09:01:06 PM »
A lathe?
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Offline Saccharomyces

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Re: Tool for grooving stainless steel tubing?
« Reply #2 on: February 15, 2021, 09:05:10 PM »
I was was assuming that they were cut on a metal lathe (more likely a CNC center these days). I am hoping that there is a tool that works like a tubing cutter that will do the job.

Offline jeffy

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Re: Tool for grooving stainless steel tubing?
« Reply #3 on: February 15, 2021, 09:07:17 PM »
Maybe a flaring tool kit?  Like for making brake lines?
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Offline Wilbur

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Re: Tool for grooving stainless steel tubing?
« Reply #4 on: February 15, 2021, 09:11:39 PM »
Are you trying to replace something specific? You could use flare fittings and use a flaring tool.

https://www.homedepot.com/b/Plumbing-Plumbing-Tools-Flaring-Swagging-Tools/N-5yc1vZ2fkojty

I don't know of anything else apart from a lathe.

Offline Bob357

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Re: Tool for grooving stainless steel tubing?
« Reply #5 on: February 15, 2021, 09:57:44 PM »
I was was assuming that they were cut on a metal lathe (more likely a CNC center these days). I am hoping that there is a tool that works like a tubing cutter that will do the job.

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Offline Saccharomyces

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Re: Tool for grooving stainless steel tubing?
« Reply #6 on: February 15, 2021, 10:06:03 PM »
I would like to make a custom pickup tube for my SS Brewtech TC kettle.  It uses a push-in pickup tube like the old SS Brewtech kettle with weldless NPT fittings.  There are two grooves in the pickup tube that hold o-rings.  The o-rings provide friction fit between the outside of the tube and the inside of valve.  I may just sell the kettle and purchase a kettle with welded NPT couplings.  Creating a custom pickup tubes for NPT fittings is a piece of cake.  For example, I used a 3/8" NPT to 3/8" 37-degree flare fitting on my last kettle (a 1/2" ball valve on a 6.75-gallon kettle looks almost as comical as a 1.5" TC butterfly valve on a 10-gallon kettle).  I bent, cut, and flared a stainless steel pickup tube for that kettle using a Ridgid stainless steel tubing cutter, a Ridgid 37-degree flaring tool, and a Ridgid stainless steel tubing bender. NPT just makes more sense than TC when it comes to brewing kettles at the home brewing level.  A brewing kettle does not need to have sanitary fittings.  I will admit that TC has more bling, but it looks out of place on a 10-gallon kettle.

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« Last Edit: February 15, 2021, 10:08:16 PM by Saccharomyces »

Offline narvin

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Re: Tool for grooving stainless steel tubing?
« Reply #7 on: February 16, 2021, 12:41:10 AM »
You might be able to use a steel pipe cutter like this:

https://www.lowes.com/pd/LENOX-2-625-in-Multipurpose-Pipe-Cutter/1003128496

I haven't used this one specifically, but I'd avoid cheaper ones with only two rollers because the cut never seems to line up after making a circle, even on plastic.

Offline Wilbur

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Re: Tool for grooving stainless steel tubing?
« Reply #8 on: February 16, 2021, 04:29:33 AM »
There might be a maker space in your area where you can get a day pass.

It looks like you wouldn't care about rotating the pickup tube If you're using with a false bottom. In that case, you probably don't need the o rings at all. You should be able to get tubing with a fairly tight fit. In any case, the gap between the pickup tube and the valve would be smaller than the debris you're trying to keep out.

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