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Can I relocate a boiler relief valve?

ritelec Member Posts: 19
Hi all,

Working on a oil boiler to gas boiler conversion here (hot water).

In matching and piping from the oil boiler to new gas boiler set up, it would be perfect (well almost) for me to remove the 1 1/4 x 3/4 x 1 1/4 (with boiler drain) factory installed "return" fitting, add an elbow horizontally add a nipple and reinstall the factory fitting (moving the point of the return over about 6 inches).

My friend/plumber says there should be no problem doing this. Not to doubt him, but please to confirm.

Here's the main question.

In moving the return over, the factory installed relief valve is in the way.

There's a 3/4" x 4" nipple from the boiler to a elbow facing up and the valve is screwed in. I'd like to remove the relief valve, turn the elbow horizontally, add a close nipple and elbow facing up (or street elbow), and reinstall the relief valve (moving the valve over a couple of inches).

My friend/plumber says he's never done that or has been asked this question.

He says it may void manufacture warranty (which I will try to find out tomorrow) and the inspector may have a problem that there's another Item in line that may interfere with the performance of the valve (an extra nipple and 90 ???).

There's a green tag on the valve that says the valve should be located in line as straight and close as possible (as possible??).

Has anyone successfully relocated a factory installed relief valve for a boiler?

Utica MGB 150

<a href="http://www.uticaboilers.com/product_detail.asp?key=33">http://www.uticaboilers.com/product_detail.asp?key=33</a>

Thanks for your help.

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