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Main vent valves for low vertical clearance?

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fnf
fnf Member Posts: 3
in Strictly Steam
It's a two main 1-pipe steam system with one of these vents (pic attached) on the end of each. One of the valves is stuck shut so I'd like to replace both, curious if anyone knows of a nice vent that will fit in here? Vertical hight doesn't seem to be specified on a lot of the ones I've looked at. There is just under 4" of room




thanks

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  • fnf
    fnf Member Posts: 3
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    I should mention: threads are 1"
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,576
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    You could always mount the new vent on the underside of the 90 degree ell, on the vertical pipe.
    Do a search for the big mouth vent here, and it will give the dimensions.--NBC
  • Sailah
    Sailah Member Posts: 826
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    Big Mouth Is 4 3/4" overall.

    The vari vent is 3 3/4" tall overall. Probably best option. But it's only 1/2" NPT so you'll need room for a bushing. It would be close.
    Peter Owens
    SteamIQ
  • fnf
    fnf Member Posts: 3
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    nicholas bonham-carter said:

    You could always mount the new vent on the underside of the 90 degree ell, on the vertical pipe.
    Do a search for the big mouth vent here, and it will give the dimensions.--NBC

    It would be a nice excuse to put in a tee with a pressure gauge, I'll look in to the big mouth thanks

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