The case of failing vacuum breaker, this fridays case
In this weeks case, it talks about why the vacuum breaker for a brewery boiler fails regularly. The owner only gets about 6 months before it stops working. They operate the boiler at 13-14 psi. The video will post this Friday at 6am EST
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Comments
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Some vacuum breakers are supposed to be protected by a water loop seal (like a pigtail).
I sometimes have better luck with a good quality Y pattern check valve. A 250 or 300# check will last longer.
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Critical devices like vacuum breakers and relief valves ought to be redundant.
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Why is the pressure so high?
Why is the vacuum breaker there to begin with?
All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Consulting0 -
Brewery's like high pressure.
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@Steamhead They have electric control valves for each kettle. When they shut off and the steam condenses, it goes into a vacuum.
Here is the link for this weeks video
Ray Wohlfarth
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Ray I love these puzzles but I think you kept known information from us that could have helped. It sounds like everyone except us knew the boiler was surging. You also didn't tell us there were two boilers, but that may not have mattered here.
Thank you for these puzzles!
NJ Steam Homeowner.
Free NJ and remote steam advice: https://heatinghelp.com/find-a-contractor/detail/new-jersey-steam-help/
See my sight glass boiler videos: https://bit.ly/3sZW1el0 -
@ethicalpaul is basically saying this.
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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@ethicalpaul and @ChrisJ I will try doing better on the clues. thanks for the feedback
Ray Wohlfarth
Boiler Lessons0 -
Oh no, I don't necessarily agree with him.
I just wanted to use that meme
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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Good catch Ray. I prefer a swing check in-lieu of a vacuum breaker since they seem to last longer.
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@retiredguy Ive alwasy been hesitant using them because I thought they would leak but am rethinking it
@ChrisJ It is a good meme
Ray Wohlfarth
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