Silicon Tubing

I'm wanting to upgrade my tubing scattered throughout my system. I utilize 1/2 barb fittings and have been looking at the various offerings from McMaster Carr.

I "think" I want the 1/8 soft wall tubing. Honestly, that's a guess on my part. Basically I'll be plumbing a March pump and various connections to and from MLT, HLT, Boiler,etc.

What do you guys use? Suggestions?

You want the 1/4" wall tubing. ---.5" ID & .75" OD

PantherCity said:

You want the 1/4" wall tubing. ---.5" ID & .75" OD

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Sounds like 1/8" wall to me...

How so??? .75-.5=.25

1/4=.25

1/8=.125

PantherCity said:

How so??? .75-.5=.25

1/4=.25

1/8=.125

Click to expand...

Wall thickness is 1/2 of the diameter difference between ID and OD...

SO, ID: 0.50"; OD: 0.75" makes for .125" wall thickness...

Really basic geometry here, not physics...

PantherCity said:

How so??? .75-.5=.25

1/4=.25

1/8=.125

Click to expand...

Two walls!

.75 OD - .50 ID = .25 total wall thickness. Measured from one tube surface to the opposite surface, you pass through the wall of the tube twice - so you have to divide the total wall thickness by 2, giving you a 1/8" wall thickness.

To the OP point, I use the .5" ID, .125" wall thickness stuff. Works great. I'm using the 'white' stuff, not the tan... More flexible.

You guys are right. I'm an idiot!

I left my thinking cap at work for the holiday weekend.

Golddiggie said:

To the OP point, I use the .5" ID, .125" wall thickness stuff. Works great. I'm using the 'white' stuff, not the tan... More flexible.

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Sounds like what I had in mind... Think I'll go for it.

Thanks Guys...

PantherCity said:

You guys are right. I'm an idiot!

I left my thinking cap at work for the holiday weekend.

Click to expand...

You trade it in for a "drinking cup"??

Golddiggie said:

You trade it in for a "drinking cup"??

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Guilty as charged! I had 2 Stone Ruinations and a couple HBed ESBs.

I'd also recommend silicone tubing rather than silicon...

Potato, potatoe... What's a missing vowel between friends?

I don't recommend silicon tubing - shatters too easily....

Just use this stuff... I have several 'extra' feet of it on hand (never know WHEN you'll need some)... Good stuff too.

Golddiggie said:

Just use this stuff... I have several 'extra' feet of it on hand (never know WHEN you'll need some)... Good stuff too.

Click to expand...

Looks good. Think I'll grab some... Thanks