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Steam boiler
Comments
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What pipe size? Where in the header will it go?All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting0 -
Either one is fine but I would lean towards a flange union on 2 1/2" and up but neither is wrong.
If you have a 4" union you need a pretty big wrench to tighten the nut and a big wrench to hold back on it.
A flange union only needs wrenches for the bolts which may be an advantage in some cases0 -
Even if you have to cut the bolts on the flange at some future point it is still easier than cutting apart a fitting and all you will have to do is replace the bolts to put it back together.0
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A 3"union needed my 36" fully open for the nut and a 24" fully open for the fitting.
Cheater pipes on each and 2 people with minor grunting.
For 4" I used flanges with gaskets.0 -
For 2" it seems to me that regular unions would be my choice.
2" header with two 2" risers.....what does the install piping diagram show?0
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