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MANUALS (2)
Product Highlights
Description
Specs
| System Type: | Hydronic (Water) |
|---|---|
| Size: | 1/8" |
| Material: | Brass |
| Body Pattern: | Straight |
| Application: | Heating |
| Mount: | Straight |
| Adjustability: | Non-Adjustable |
| Thread Type: | Male |
| Min Temp (F): | 140°F |
| Max Temp (F): | 240°F |
| Temperature Range (F): | 140°F - 240°F |
| Thread Size: | 1/8" |
| Max Pressure: | 125 psi |
| Max Venting Pressure (PSI): | 125 psi |
Questions?
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leak
Probably not buy again
Works great
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Good Guys
Great for hydronic baseboards
Exactly right
Product Q&A
5 QuestionsQ: Is there a way to temporarily disable the valve so I can do a pressure test on a zone? It seems like this vent works really well so I need to remove it or temporarily disable the valve.
Asked by Richard 8 years ago
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Verified Reply- SupplyHouse StaffThe vent can be manually shut-off by means of an internal ball check.
Q: How do I set the valve initially. I purchased 12 of these and installed them on my steam system on the radiators.
Asked by Full reno 12 years ago
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Verified Reply- Supplyhouse Staffalmost all the way closed
Q: I have 6 of these. The instruction for operating are non-existant. how TIGHT to you close it by hand? Real tight, linda tight, or just enough to stop the water from coming out?
Asked by Jake 12 years ago
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Just enough to stop the water by hand
In my experience, "kinda tight". Not really tight, and not lightly tight, somewhere in between. That's vague I know, but remember that you need to be able to undo it as well.
Q: Does this coin vent automatically or do I have to turn it with a key or something to vent the air out. If it is automatic is there any problems with water leakage?
Asked by NJ homeowner 12 years ago
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It's an automatic vent. You can adjust it to change the speed of the venting and I had no problems with leaking.
It will vent automatically but you would normally keep it closed.You turn the nut that looks like a coin on top by hand to open or close it.
You can open the vent manually to bleed the system but under normal operation it vents automatically. The gasket in the vent swells when wet to prevent leakage and when dry because of trapped air it shrinks to automatically vent. I have 4 that have been installed for 5 years and they have never leaked.
The vent uses a cellulose disk which, when coming in contact with water, swells and prevents water from escaping. So, when the cellulose disk is dry, it allows air to escape until water comes in contact with it. It is completely automatic once installed and there are no problems with water leakage. Just make sure to install properly and open the valve enough to let air escape, but not so much that excess water will escape.
we had leakage problems and kept the cap tight. The cap can be tightened or loosen by hand
Q: What does the 1/8 inch size refer to? I need to install in a 3/4 inch copper pipe. What's the female size fitting used with this vent? Thanks
Asked by Mike 12 years ago
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Verified Reply- SupplyHouse StaffThese vents have 1/8" thread on the bottom. They are normally used for connecting to an air scoop (e.g. pat 431-6) or a baseboard tee (e.g. part NLCBT-120212).
At the bottom of the page is a tab with manual click on that link and it will give you all the dimensions of the different models they sell. Looks like this was made to fit into a different Taco fitting. Not sure you can direct connect to the 3/4 fitting. If you can just get a 3/4 Tee or elbow with a vent fitting that fits the "a" dimension, in this case 1/8". Sent from my iPhone
It means it has 1/8" NPT thread if I am reading the specs right.You will need a bushing or some other fitting(s) to get up to your size.
This is the 3/4" brass 90 that you will need to use with the coin vent you are asking about. http://www.supplyhouse.com/Cello-NLCBT-120212-3-4-x-1-8-x-3-4-CxFxC-Baseboard-Tee-Lead-Free The 1/8" is the pipe thread size for the male thread on the coin vent.
This is the 3/4" brass 90 that you will need to use with the coin vent you are asking about. http://www.supplyhouse.com/Cello-NLCBT-120212-3-4-x-1-8-x-3-4-CxFxC-Baseboard-Tee-Lead-Free The 1/8" is the pipe thread size for the male thread on the coin vent.