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Hy-vent dripping
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mmvpp
Member Posts: 8
Hi,
There are 2 hy vents in my system and one of them is leaking water from the cap. The 2 hy vents are very close to each other. The dripping one is the one near the bolier and the second one is right before the zone valves and above the tank. I was just wondering whether they are redundant and I can just simply tighten the leaking one (red circle) and have the other one do the work? I am attaching a photo.
BTW, I think there is a shutoff valve (blue one) for the hy-vent?? Maybe I can just shut it off and replace the vent?
Thanks for the help.
There are 2 hy vents in my system and one of them is leaking water from the cap. The 2 hy vents are very close to each other. The dripping one is the one near the bolier and the second one is right before the zone valves and above the tank. I was just wondering whether they are redundant and I can just simply tighten the leaking one (red circle) and have the other one do the work? I am attaching a photo.
BTW, I think there is a shutoff valve (blue one) for the hy-vent?? Maybe I can just shut it off and replace the vent?
Thanks for the help.
0
Comments
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You can pipe them with mini shut offs. But in reality, they are a poor way to remove air from the system.
If you have to drain the system anyway you'd be wise to make a few upgrades:
-Remove the air scoop for a micro reabsorber, get rid of the hy-vents. That's all the air elimination you'll need.
-Add a Webstone expansion tank valve, for easy checking and eventually replacement of your expansion tank.
You could just replace the one vent, but it's probably doing nothing.steve0 -
It looks like there was a low water shut-off safety device to the right of the vent that needs attention. If you don't have one anywhere else on the boiler I would consider putting one back there.0
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Eliminate the one that is not on the purger. Always good to have a valve or service check for this reasonBob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
0
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I have one of those Hy-Vent air valves on above the air purge on my system. It's been seeping water recently. I tried tightening down the little cap, but it is vented - the water still seeps through. Does it need to be replaced, or can I remove it; clean it; and re-install? Thanks.0
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maybe. sometimes you can clean whatever is making it not seal. they aren't expensive.0
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