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Is this PRV correct?

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brandonf
brandonf Member Posts: 205
in Strictly Steam
I remember reading somewhere about the positioning of pressure relief valves but I can't find the literature.
Homeowner, Entrepreneur, Mechanic, Electrician,

"The toes you step on today are connected to the butt you'll have to kiss tomorrow". ---Vincent "Buddy" Cianci

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  • Ironman
    Ironman Member Posts: 7,376
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    It should be mounted vertically with the lever on top.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    delta T
  • New England SteamWorks
    New England SteamWorks Member Posts: 1,505
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    No.
    New England SteamWorks
    Service, Installation, & Restoration of Steam Heating Systems
    newenglandsteamworks.com
  • brandonf
    brandonf Member Posts: 205
    edited November 2018
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    Wow. It was mounted like that for years. It went bad last year and my plumber replaced it. You would think that he would've installed it correctly since he was already in there.... Yeah he's never touching this boiler again. 🤔
    Homeowner, Entrepreneur, Mechanic, Electrician,

    "The toes you step on today are connected to the butt you'll have to kiss tomorrow". ---Vincent "Buddy" Cianci
  • Ironman
    Ironman Member Posts: 7,376
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    Very few plumbers realize that a boiler relief can't be done like a TP relief on a water heater.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • pecmsg
    pecmsg Member Posts: 4,862
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    brandonf said:

    Wow. It was mounted like that for years. It went bad last year and my plumber replaced it. You would think that he would've installed it correctly since he was already in there.... Yeah he's never touching this boiler again. 🤔

    and the instructions are still in the Box!
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,546
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    Go easy. They were commonly installed with the stem horizontal years ago. The stem vertical is a fairly recent 10-15 year thing. It's ASME CODE now
    delta T
  • brandonf
    brandonf Member Posts: 205
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    > @EBEBRATT-Ed said:
    > Go easy. They were commonly installed with the stem horizontal years ago. The stem vertical is a fairly recent 10-15 year thing. It's ASME CODE now

    Interesting....
    Homeowner, Entrepreneur, Mechanic, Electrician,

    "The toes you step on today are connected to the butt you'll have to kiss tomorrow". ---Vincent "Buddy" Cianci
  • delta T
    delta T Member Posts: 884
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    The vertical requirement is definitely new, I had a 13 building condo association that had 25 boilers for space heating (fin tube baseboard). They were installed in the early 70's. They have gotten inspected by the state every two years since they were installed. In 2008 the boiler inspector said that all the relief valves had to be changed so that they were vertical. I am very glad that I didn't have to change 25 relief valves and their piping on my nickle! Don't think he really screwed up, just didn't keep up the change in regs. I have never seen anyone called on it in a residential setting, only commercial btw....doesn't mean it isn't still the rule but still.....

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