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1-1/2" Spirovent Jr. Air Eliminator (Sweat)
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Product Highlights
Description
- Body Type: Brass
- Connection Type: Sweat
Specs
| Max Pressure (PSI): | 150 |
|---|---|
| Size: | 1-1/2" |
| Product Type: | Air Eliminator |
| Material: | Brass |
| Application: | Heating |
| Max Temp (F): | 270°F |
| Connection Type: | C x C |
| Connection Method: | Sweat |
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Product Reviews
Most Liked Positive Review
This is a NO BRAINER!!!
Most Liked Negative Review
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Good But expensive
yes
Spirovent- Top Notch air eliminator
Yes
Abco
works perfectly
I do buy this product again and again
I love Supply House
every boiler job
I always buy this product.
I would buy this again
Product Q&A
9 QuestionsQ: Does this unit require a certain length of upstream horizontal pipe, such as 8 pipe diameters or similar?
Asked by naphelge 9 years ago
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Verified Reply- SupplyHouse StaffIt must be mounted in a straight run of horizontal piping in a perfectly upright position to allow the vent to operate freely." X" number of pipe diameters of straight run before and after the unit are not required.
According to Spirotherm's installation instructions for the VJS series: “X” pipe diameters of straight run before and after the unit are not required. You can find those instructions at www.spirotherm.com, under Support / Installation and Operation.
Q: I have a radiant heat system that was recently converted from an open system to a closed system. Although there is an air vent on the system at the heat source (water heater) the pumps are physically higher than the existing vent. I have had to purge air from the system and would like to install an air eliminator at the high point in the system in an effort to get rid of the air. It would be physically located close to the inlet side of the radiant pumps. Is this the correct application of the Spirovent Air Eliminator or should I consider a different option? Thanks.
Asked by Steve 11 years ago
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Of course when the system is at rest, the air will accumulate at high points. But when the pumps are running, any air trapped in the system will make its way around the whole loop. Hence you can get sloshing and hammering anywhere in the line. Top priority for installing a Spirovent is that it be in a horizontal run of pipe - this is a must. After that, it helps if you can install on the boiler output side or on the pump intake side. In this location, the water is at its highest temp and lowest pressure, and that entices more of the dissolved air out of the water, allowing the Spirovent to capture it. Bottom line, as long as you are putting the vent in the flow in a horizontal run of pipe, it should be able to do its job.
Q: Does unit come with a plug in the expansion tank port, or will I need to get one to close that hole?
Asked by Yort 12 years ago
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Verified Reply- PexSupply StaffThe plug is not included. You would need to purchase one separately if you do not plan on connecting the air eliminator to an expansion tank.
Q: I'm trying to decide between threaded and sweat for the 1" Spirovent Jr. Air Eliminator (VJS100). Are there any rubber seals or anything inside of the unit that I may damage with my average pipe sweating skills? I taught myself plumbing about 6 years ago and can still overdue it when it comes to sweating pipes. However, I've never had a sweated connection leak, can't say the same for threaded. Thank you
Asked by Mike the overheater 12 years ago
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Mike, we had the same concerns and had no problem with the valve and our sketchy skills. You can unthread the top off the body if you are worried but the valve is large enough that the top stays cool while you are sweating the fittings on. Ron Welser
Go for the sweat, I've been installing these for years never a problem, just as you say don't over do it with the torch. Sent from space
Looks like it has a Seal and O Ring made of Viton. http://www.spirotherm.com/sites/default/files/VJS-1C_1.pdf But I suspect those are high up in the vent - far enough away from where you'd be making connections. I'm no plumber either, but had no problem installing a pair of them. No leaks, and working great.
Hi, There are nothing to burn at the bottom of the spirovent. If you decide to get the threaded version just put about 7 turn of tape over the thread. There are also 1/2 inch threaded hole at the bottom where you can put an expansion tank or a valve.
There is nothing that I’m aware of that can be damaged as long as you concentrate the heat in the area of the actual joints. You can always lay a damp rag on the body of the vent to keep that section cooler during the sweating process (although this will lengthen the time it takes to convert the solder to a liquid by a little). I’ve used the sweat version of this device countless, with no problems. Hope this helps, Scott
I just sweated the 1" copper lines directly to the Air Eliminator. Had no problems or issues. Just make sure everything is clean and you use the correct flux with lead free solder. L
Yes, there is an o-ring. I had the sweat fitting and I unthreaded the top and took the ring out while I soldered it. I would suggest, if it works out, using the threaded to avoid having to do that.
I installed mine by sweating on , had no problems ,but you can easily take apart if your worried and yes there is one o-ring. good luck
Q: Do I need to try to install this at the highest point in the heating system? Or can I install it on a short horizontal run before the water enters the boiler (this point is a few feet lower than the circuit). It would be between the water supply and the circulator pump.
Asked by Mike 12 years ago
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Verified Reply- PexSupply StaffSpirovent-style air eliminators do not need to be installed at the highest point in the heating system, but they should be placed on the supply side before the circulator pump. Air eliminators function most effectively when system fluid is as hot as possible and at its lowest velocity.
The purpose of this device is to extract air from your system. To insure that you do this for the whole system, it should be installed at the highest point in the system. Based on your individual system, you may get away with installing it somewhere else. If you do that, you need to insure that the higher parts of the system are not subject to the collection of air bubbles or that the flow thru the higher parts of the system are positive displacement. The other alternative is to install a manual relief valve at the high point to remove air, but that is what this product is for. If this is being installed for someone else, put the Spirovent at the highest point. If it is in your home system, you need to calculate your tolerance for criticism when a bubble causes your pump to cavitate and lose flow vs the effort to do it right. --Mike
Hi Mike, Yes, the spirovent needs to stand upright on a horizontal run of pipe on your hydronic system. I also have mine between my circulator pump and my boiler. The nice thing about this unit is it "scrubs" travelling bubbles out of your loop. You will likely still need to air bleed your individual radiators, but this unit helps reduce air from travelling in the lines. If you get lots of air in your system, then you likely have a leak which you should also be addressing. Good luck! JF
I'm no expert, but my understanding is that the only requirements are that they be placed somewhere in the flow, and installed relatively vertically. These bleeders operate by capturing air from within the water as it flows through. If the bleeder is installed in the feed line, it only gets one shot at scrubbing the air out. When fresh water comes in, much of the air it carries is dissolved - the bleeder won't catch it. Instead, the bleeder should be installed in the zone so it can operate on the water as it flows by. It just needs to be close to vertical so the mechanism can function properly - air it has scrubbed out accumulates at the top, and when there's enough of it the float opens the valve to let the air out. I'd expect that any air in the system that's contributing to noise will follow the flow around and eventually pass through the bleeder, wherever that bleeder happens to be installed. If there is a pocket of air trapped in a high-point in the system, and it's out of the way enough to actually stay put, then it probably isn't causing any noise (or other problems) anyway. Install these bleeders somewhere in the zone - anywhere in the zone is fine. I have 2 of these in my system: one is in the 1st-floor zone; the other in the 2nd-floor zone. Both bleeders are installed in the basement, in a 6-foot horizontal run, only a few feet above the boiler. Almost the entire zone is above its bleeder. These worked great for me. My system had obvious sloshing noises and some banging. In just one day these bleeders had the system running much quieter. The only noise now is the pinging from the baseboards as the metal heats up. Hope that helps.
Well, it depends on how reliable you want your heating system to be. For maximum efficiency and reliability, you need to pipe that air vent up above your boiler on the primary loop. Check you boiler piping instructions for good piping diagrams.
I followed what this book told me as I was getting a lot of air in my system: http://www.amazon.com/Hydronic-Radiant-Heating-Practical-Nonengineer/dp/B0006R478S. Basically haven't bled a radiator since following his advice, except once in the fall and I basically don't get any air anyway. You want the Spirovent on the suction side of the pump. You should have a bladder tank screwed into the bottom of the spirovent. My water supply enters off a tee between the bladder tank and the vent, but I don't think it matters much where the water enters as you really shouldn't be adding water or you have a leak. The boiler should be on the suction side of the pump as well (before the Spirovent of course) Having this setup limits the pressure drop created by the pump. A pressure drop in a system is what leads to air leaving the water. Also, the Spirovent is located where the pressure is lowest; this is where the air is going to bubble out of the water. Don't think the high point really matters as the spirovent has a screen that captures microscopic bubbles in the water. It might remove bulk air too, but it's primary function is to scrub the water of air bubbles.
Q: With this air eliminator, do I still need to install a purge valve and isolation valve on the system to purge the air on a new baseboard type of installation? Thank you.
Asked by Joe 13 years ago
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I have a couple of smaller air eliminators in my radiant heat systems and both work well without any extra hardware. The one in my solar/radiant heating system for my workshop is at the top of the system, and the one for the radiant heating system in my house is within a foot of the high point. Both air eliminators are in the system full time (no isolation valve) and I have not had any problem with fluid leaking or air in the system after the system is filled and run for a few hours to get the last bubbles out. --Mike
I have installed many of these Spirovent eliminators, and I use them in place of the traditional air-scoop and automatic hi-vent. They are wonderful at keeping your systems air-free and quiet. I still install the fast feed/purge valve for the initial pressurization, and for quick re-pressurization during future maintenance. Hope this is helpful, Corhouse Construction, LLC.
Yes, this micro bubble resorber will create bubbles and eject them from the system. It is intended to be placed where the water is hottest and the pressure is lowest (suction side of main circulator). If large pockets of air are left in the system it may stop circulating water altogether. Greg Rehn Description: HydroSci P Please consider the environment before printing this e-mail
Q: What is the height of the eliminator? How much clearance above it do you need to install it?
Asked by 14 years ago
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Verified Reply- PexSupply StaffThe air eliminator measures approximately 7.5" in height and requires only minimal clearance at the top.
Q: Does the sweat fitting allow for tubing of one size internally and one size larger externally?
Asked by 14 years ago
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Verified Reply- PexSupply StaffNo, the unit is one size internally.
On the 1-1/4 Spirovent Jr. Air Eliminator (Sweat) the sweat fitting only allows for one size pipe to be specified.
Q: Does this unit have a 1/2" threaded port on the bottom (for hanging an expansion tank) (like the Honeywell units do)?
Asked by Ed 15 years ago
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Verified Reply- PexSupply StaffYes, it does.