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Old 12-10-2012, 04:04 AM   #1
jgaepi
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I see these recommended but not easy to find. For a 1/2 inch silicone tube over one of bargainfittings.com 5/8 barb, which size oetiker clamp do I need? And any recommended online sources?
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Old 12-10-2012, 09:09 PM   #2
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I have my 1/2" ID silicon tubing forced over 1/2" NPT threads on my fittings without any clamps. You could use a zip tie or similar to secure the hose on the oversize bar.

Oetiker clamps are great for high pressure lines like CO2 and beer line in the keggerator.

 
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Old 12-10-2012, 09:25 PM   #3
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I have the camlocks with barbs. I don't trust zip ties or just leaving the tubing as is.
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Old 12-10-2012, 10:48 PM   #4
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Quote:
Originally Posted by jgaepi View Post
I see these recommended but not easy to find. For a 1/2 inch silicone tube over one of bargainfittings.com 5/8 barb, which size oetiker clamp do I need? And any recommended online sources?
IIRC, I think Keg Connection carries them. I haven't used them on silicone tubing, but I have used them on some gas and beer lines. I found some at Lowe's for PEX tubing which were not the size I needed, so I bought some that were a little too large, then wrapped the tubing (vinyl) with several layers of heavy duty teflon tape. Then used some big pinchers instead of the expensive tool for the O-clamps. Works great. Lowe's only had 3 different sizes and the size listed on the bags is misleading because it corresponds to PEX tubing sizes, not actual tubing OD.

EDIT: I just checked my parts bin and the only sizes of O-clamps that Lowe's had are 3/8, 1/2, and 3/4. The 1/2 is too small and the 3/4 is going to be quite a bit too large. The ID of the 3/4 clamp is over 7/8 inch and the clamp is labeled 23.3 which I believe is the ID in mm, unclamped.

 
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Old 12-10-2012, 11:56 PM   #5
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It looks like the clamps from KegConnection are a little small, if their sizes are in mm.
3/4" is 19mm, I only see up to 17mm.

Here's an old thread from homebrewtalk with a McMaster part number.

 
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Old 12-11-2012, 12:28 AM   #6
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Yeah 3/4 is something like 19.8. I've been watching them pop on and off on Amazon, last I checked there was a seller selling a bag of 50 for like $15.

Edit:

Here is the link. Amazon 19.8 Oetiker

And McMaster Carr hose clamps.
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Old 12-11-2012, 01:31 AM   #7
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I found them today at installation supply something or other for 17c each. Then $10 for the pliers and $8 shipped. Not bad.
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Old 12-11-2012, 01:55 AM   #8
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I got mine from Installation Parts as well.

On my setup for 1/2" silicon on 5/8 barbs, the 22-6 were the right size. 19-8 was too small. It wouldn't pass over the hose once it was on the barb.

I bought a bunch of different sizes so I can custom fit.

I also prefer these over worm clamps (I've replaced all my worm clamps). No tails hanging around to snag on. Also, I think they make the hosing look cooler. Not a real concern, I just like things to have a clean look to them.

 
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Old 12-11-2012, 03:03 AM   #9
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The ones my local Lowe's has, for PEX are:

Bag label - # stamped on clamp
-------------------------------
3/8 " - 13.3
1/2 " - 17.5
3/4 " - 23.3

 
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Old 12-11-2012, 04:03 AM   #10
strumke
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Lowes has them. I've also bought bags of 50 on Amazon for decent prices w free shipping. They were sold by TJ Longda tools.

http://www.amazon.com/Oetiker-Style-...d_sbs_indust_6

 
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