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Frank-Jazz
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Location: San José, Costa Rica
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Metal caps for ducts

07/20/2010 11:28 AM

Colleagues, I wanted to ask someone who can sell metal caps for ducts, i have to take pitot traverses but I need after that to seal the hole (3/8" in diameter), I need metal caps not plastic ones

appreciate the help

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Doorman
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#1

Re: Metal caps for ducts

07/20/2010 11:37 AM

Hello Frank-Jazz.

Do you mean this sort of thing?

If yes, widely available. This image from Grainger. They will sell to you.

Usual disclaimer applies.

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Frank-Jazz
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#3
In reply to #1

Re: Metal caps for ducts

07/26/2010 11:29 AM

Is more like this one but in metal, is to tap a black iron duct for a kitchen grille exhaust regards

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Doorman
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#4
In reply to #3

Re: Metal caps for ducts

07/26/2010 11:45 AM

There are such things:

This is very common, but only in 3/4" Ø.

This is a finger pull for a closet door. There may well be similar items for other uses that are the smaller size you seek.

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KJK/USA
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#2

Re: Metal caps for ducts

07/20/2010 1:49 PM

Frank,

How about two washers of proper size with a screw/nut through the center.

If condensation/rust is an issue, use the same set up in stainless steel.

If condensation seepage is an issue use a thin rubber gasket in between the washers.

If there is no way to reach behind to get a washer on the inside of the duct, use a washer/screw/toggle bolt set-up.

KJK

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Frank-Jazz
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Location: San José, Costa Rica
Posts: 102
#5
In reply to #2

Re: Metal caps for ducts

07/27/2010 12:10 AM

Do you have a picture?? Im little bit lost

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