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Gorton No. 2 Straight Air Eliminator

Brand:
Gorton
SKU:
G2
Rating:
(45)
Q&A:
(1)
Gorton No. 2 Straight Air Eliminator
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$158.92 each
In Stock
In Stock
Get 74 Mon, Jul 20
Order by 6PM, receive Monday
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Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Size
1/2"
Product Highlight: System Type
Steam
Product Highlight: Mount
Straight
Product Highlight: Material
Steel
Product Highlight: Body Pattern
Straight
Product Highlight: Thread Type
Male Thread Type

Description

Gorton G2, No. 2 Straight Air Eliminator (3524000) is a main line steam air vent for residential and light commercial steam systems, used to release trapped air from mains so radiators heat evenly.

Key Features:
  • No. 2 straight air eliminator for steam mains
  • Straight configuration for in-line mounting
  • Genuine Gorton replacement part

Compatibility & Applications:
  • Primarily used with one-pipe low-pressure steam systems
  • Installed on steam mains to reduce air binding and improve distribution balance.

Installation & Operation Notes:
  • Mount in the upright position on the main or riser tapping provided for a main vent.
  • Follow system drawings for vent location and quantity based on main length and diameter.
  • Shut the system down and cool before replacement. Use thread sealant compatible with steam service.

Maintenance & Troubleshooting:
  • If mains heat slowly or vents spit water, check pitch, pressure setting, and vent condition.
  • Replace vents that leak steam or fail to close when hot. Periodically verify that vents are upright and unobstructed.

Specs

Application:

Main Vent

System Type:

Steam

Size:

1/2"

Model:

Gorton No. 2

Mount:

Straight

Adjustability:

Non-Adjustable

Material:

Steel

Body Pattern:

Straight

Thread Type:

Male

Temperature Range (F):

140°F - 240°F

Thread Size:

1/2"

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Product Reviews

4.69 out of 45 reviews
95% would recommend this product
4.69
out of 45 Reviews
95% would recommend this product
WRITE A REVIEW
5 star
87%
4 star
4%
3 star
4%
2 star
0%
1 star
4%
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Customer Images

Most Liked Positive Review

Low pressure vent

I saved $750.00 last winter by adding multiple Gorton 2's, insulating the main lines, and adding a vaporstat. Gorton 2's do not like high pressure. They will hiss and spit at around 1.6 psi. So for those of you with hissing complaints, lower your pressure and they work fine. If you are unable to lower your existing pressure controller this low, get a vaporstat. Out of the box, my vaporstat was set to on at 3 ounces, and off at 8 ounces. After installing the vaporstat my Gorton 2 hissing problem disappeared.
VS

Most Liked Negative Review

Inconsistent quality

The smart mantra in steam heating is, vent the mains fast, the radiators slow. This is one of, if not the, fastest vents for mains there is, and from my online reading, has a very good reputation in the steam heating industry. But my experience was different. One of two I ordered was sealed shut and did not vent at all. PexSupply promptly sent an apology and replacement. The replacement vented slower than the other. It's main did not heat completely; when I switched the vents, the other one didn't. I increased the anticipator setting to get longer cycles and the difference is less noticeable now.
Showing 1-10 of 45 reviews

I ordered a part I did not need, the return was hassle free

Customer service is great!
Maryann
NJ
5 months ago
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Packaged carefully. Works great!. Will be repeat customer.

Venting my steam system quickly to allow radiators to heat fast.
Nick
Warwick RI.
3 years ago
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Good and fast

Ordered 4 number 2s and they arrived super fast and are top shelf quality
Alex
Silver City NM
3 years ago
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I would definitely but there vents again

I've been struggling getting my new steam boiler to work correctly. Someone suggested these air vents and supply house was the cheapest I found and they were delivered within a couple days.
Mike
Pennsylvania
4 years ago
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Minor problem resolved

The first Gorton #2 received was defective and did not vent air. I removed it and looked through the bottom and the pin was not in the hole. Called SupplyHouse and explained that it did not work and they sent another right away (which works perfectly). SupplyHouse is my go-to for plumbing and heating. They make things right.
Ted
PA
4 years ago
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works well, would def purchase again from supplyhouse

I actually had an issue with the one I got. It was always in the closed position, simple test I did was to just blow into the bottom, with the top facing down, and again with the top facing up. It was always closed. I reached out to supplyhouse and they sent me a new one, I did the same test, and it air flowed through when the top was facing down (as expected). Product works great!
Julius
Manhasset, NY
4 years ago
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Worked for my problem.

Had a air/steam vent on main line that would spit and sputter steam. Divided to replace the rust coated piece of junk. Found this, at my favorite online plumbing supplier (SupplyHouse). Solved my obvious problem and also improved my systems performance. Don't know if it is overkill... it's huge! Quite satisfied with price and products...again!
Old house ownee
Providence, Rhode Island
5 years ago
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Just what my steam system needed

I had an inadequate main vent on one side of my home, and none on the other. I'd read good things about the Gorton #2's, and after checking requirements for my main venting needs, I went for two of them. The replacement side went easily. The side with no vent required cutting out a many years old plug, but once done the #2 screwed in fine. I must say the steam travels through the whole system, right up to the second floor, much faster. I would definitely recommend these main vents.
BD
NYC
5 years ago
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awesome place to shop

Perfect fit
DON
NJ
6 years ago
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Great product made by a great company

We recently bought a 100 year old house that has single pipe steam heating. Our radiators had very old vents that were all different brands, they vented very loudly, and took a while to heat up. Luckily I have a friend who recommended I replace the main vent with the Gorton #2 and it made a huge difference. I salvaged a few of our radiator vents by cleaning them, but I still needed to replace a few noisy ones. I ended up giving Gorton a call, someone picked up right away and talked me through which vents to get for each radiator. I can't believe what a difference they have made, now the house heats up quickly and quietly. If you are new to steam heat, check out the Gorton website, they have a lot of great information and you can call them if you have questions.
Bryan
Beverly, MA
7 years ago
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Product Q&A

1 Question
1 Question
ASK A QUESTION

Q: I have a 4 story multi-family bldg with a 1 steam pipe setup. How do I figure out what size and how many main air vents I need to use? Is there some formula I can use or is it hit or miss? The local plumbing supply store carries the gorton valves but wasn't much help In recommending which to use.

Asked by lou 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Please refer to the link below. http://s3.pexsupply.com/manuals/1285962872991/39827_PROD_FILE.pdf

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- MickeyD

In Dan Holohan's book "Greening Steam" is a chart of venting capacities of various different air vents. Gordon #2 comes in at 2.2 CF of air venting capacity per minute, at 3oz of pressure. This vent is mounted on a 1/2 inch MPT. An open 1/2 inch pipe allows 4.8 CF of air flow per minute at 3oz of pressure. If your main vent tee is 1/2 inch or larger, you can, theoretically make up a pipe branch and attach 2+ of these babies to get it venting at pretty much a rate of open pipe until the steam hits it. This is where you want to be careful if there are several loops (zones). You want all of them to vent evenly, thus make sure whatever you do, it's the same on all sides. Then, the risers should, in theory, all start filling with steam evenly, at the rate radiator vents will let them. I highly recommend the book "Greening Steam". You will learn a lot about your system and will probably just from it know more about steam systems than 95% of 'contractors'.

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- Spin

I agree with Mickey D, except if your branches are different lengths (differing amounts of trapped air) you may need different venting on different branches to have all radiators get steam at the same time. The longest branch (most distant main) needs the most venting.

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