Should I replace this broken pressure gauge?
What should I order to replace?
See 3 photos below
Comments
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Yes, its a code requirement.
Useless for diagnostic purposes. For that you need to ADD a 0-3 psi gauge.
Oh, you also need a water trap or pigtail before your new gauge.{s}
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
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Are you sure it's broken? Or just out of adjustment. It probably won't show the low pressures normally used anyway.
Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Not sure.
I just assumed since someone wrote "Broken" on it.
I will watch the gauge when the heat runs.
Steam pressure is generally 1-2 PSI ?
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Is there a direct replacement for that, or will a new gauge need a pigtail?
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Alot of them I see are broken. I don't worry about them on steam boilers.
Located in durham NC.
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Replace it with a 0-30psi “internal siphon” steam gauge. “Internal siphon” on a steam gauge means the gauge has a built in pigtail inside the workings of the gauge so you can screw it directly into the boiler (with dope or Teflon tape)
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Just write fixed on it. All will be okay
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Jamie has a point. I wonder if the gauge works. I will watch gauge next time heat turns on and see if needle moves.
What if I break it when removing and create a leak? The pipe leading to the gauge is warm.
Also, how do I know what size thread the connector pipe is ?
https://www.supplyhouse.com/sh/control/search/~SEARCH_STRING=steam%20gauge
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@delcrossv is right, you need a low pressure gauge as well, to tell what is going on. Also these low-pressure gauges don't like off-scale pressures, and at least the ones I have found are expensive.
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Is it possible to explain what parts I'd need to add a 0-3 psi gauge?
Fork from the line going to square dial in my pics above?
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I have a very non-standard boiler so I assume I can't look up a video of how to add a 0-3 gauge
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Pigtail to tee to a couple of nipples to ells to a couple of nipples to the units (add couplings as necessary).
C'mon look and see how it should go together. Visualize. Draw a picture.
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
OK, I get what you mean by a fork into 2 pipes facing frontwards.
Pigtail would replace square gauge in front? Extending that long straight pipe a half a foot even furthur would be getting in the way of the door closing. And would look weird as hell. And risk getting broken off?
Size is 1/4" N.P.T. ?
I can't find a 0-3 gauge
https://www.supplyhouse.com/Weil-McLain-510-218-045-Pressure-Gauge
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The ways to do it are unlimited. Mine is a T off the main relief. My 0-3 psi gauge is a Wika purchased from wika.com.
I think you need to retain a 0-30 psi gauge. I have a square 0-30 psi gauge on the front of the boiler that I did not mess with.
(Yes, I know that is the wrong Pressuretrol. Not sure where it came from but It is replaced with a Vaporstat.)
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If they are too hard to get out, I just add new ones elsewhere. Mad Dog
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Some of you have these beautiful headers installed in a tap on the front of the boiler with low-pressure gauge, Vaporstat, and safety Pressuretrol all where you can see them, individual pigtails for each, a valve protecting the 0-3 psi gauge, and couplings everywhere for easy maintenance. That is probably the "right" way if there is one.
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Hello CoachBoilermaker,
Maybe that long copper pipe from the boiler to the gauge is plugged up and the gauge is actually fine.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0 -
If I take off the square gauge, will water shoot out of the pipe?
How do I safely remove gauge to inspect a clog in the straight pipe?
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" If I take off the square gauge, will water shoot out of the pipe? " If the pipe is above the water line probably not.
" How do I safely remove gauge to inspect a clog in the straight pipe? " Wait for the boiler to cool down, where eye / face protection, use the correct tools.
National - U.S. Gas Boiler 45+ Years Old
Steam 300 SQ. FT. - EDR 347
One Pipe System0
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