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Product Highlights
–
1/8"
Steam
240°F Max Temp
Steel
Angle
Male Thread Type
Description
–
Gorton G5A Gorton No. 5 Angle Vapor Equalizing Valve (3528000)
A non-adjustable, angle-pattern steam radiator vent used to release air from a steam radiator so steam can fill the radiator and help balance heating across a system.
Key Features:
Compatibility & Applications:
Installation & Operation Notes:
Maintenance & Troubleshooting:
User Reviews & Q&A Summary:
A non-adjustable, angle-pattern steam radiator vent used to release air from a steam radiator so steam can fill the radiator and help balance heating across a system.
Key Features:
- Vapor equalizing valve designed to provide air elimination on steam heating systems
- No. 5 vent size; manufacturer guidance indicates it is intended to be installed on radiators near the boiler and in warm rooms (manufacturer instruction)
- Angle body pattern with male 1/8" thread
- Non-adjustable design
- Steel material
- Temperature limits listed as 140°F - 240°F
Compatibility & Applications:
- Listed application: Radiator Vent; system type: Steam
- Manufacturer guidance describes using different vent sizes to balance radiators: larger sizes for radiators farther from the boiler/cold rooms, smaller sizes closer to the boiler/thermostat-influencing rooms
- Must only be used where the manufacturer specifies this exact part number: G5A / No. 5 Angle Vapor Equalizing Valve (3528000)
Installation & Operation Notes:
- Installation should be performed by a qualified steam/heating technician.
- Manufacturer guidance for vent selection/placement indicates No. 5 is installed on radiators near the boiler and in warm rooms.
- The valve must remain upright/vertical for proper operation (as noted in the Q&A guidance).
- Refer to the steam system/radiator documentation for correct vent location, piping orientation (angle vs. straight), and safe depressurization/cool-down steps before servicing.
Maintenance & Troubleshooting:
- Manufacturer guidance emphasizes that selecting the correctly sized vent for each radiator helps balance and equalize a steam system for more even heating.
- If a radiator does not heat properly after replacement, user feedback includes cases where a vent was reported as blocked or not venting air as expected; verify correct orientation and that air can vent as intended.
- If performance is inconsistent, user feedback suggests pre-testing vents prior to installation in response to occasional quality-control concerns reported by some customers.
User Reviews & Q&A Summary:
- Reviews commonly describe Gorton fixed-size vents as effective for balancing steam radiators, with many preferring non-adjustable vents to reduce failure points and keep performance consistent once properly matched to each radiator.
- Fit/installation feedback includes notes that these vents are described as quiet in operation and that fitting style can matter on older radiators; multiple reviewers emphasize confirming whether an angle or straight vent is required for the radiator's tapping location.
- Negative themes include isolated reports of a vent that did not pass air (described as blocked) and recommendations from some customers to test before installation.
- Q&A theme: the practical difference between angle and straight styles is primarily mounting location and clearance, with guidance that radiators tapped on the side typically use an angle vent, while radiators tapped on the top typically use a straight vent, and the vent should remain upright.
Specs
–
| Application: | Radiator Vent |
|---|---|
| System Type: | Steam |
| Size: | 1/8" |
| Model: | Gorton No. 5 |
| Adjustability: | Non-Adjustable |
| Material: | Steel |
| Body Pattern: | Angle |
| Thread Type: | Male |
| Min Temp (F): | 140°F |
| Temperature Range (F): | 140°F - 240°F |
| Max Temp (F): | 240°F |
| Thread Size: | 1/8" |
Questions?
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Product Reviews
4.32 out of 19 reviews
88% would recommend this product
5 star
79%
4 star
0%
3 star
0%
2 star
16%
1 star
5%
Most Liked Positive Review
great product - works like a charm
Gorton valves are the best solution to uniformly heat your house with steam radiators.
Pex shipped my order the same day and it arrived the following day which was a great bonus as I was able to put the valves to good use rightaway.
Adjustable valves are prone to failure. These fixed size valves from Gorton are a great way to set up the whole house to heat up just the way you want it and utilize the steam from the boiler in the most efficient way. These valves come in different sizes and Gorton's website has complete description of all the valve sizes along with a reference diagram of how to choose the valve size depending on the location of the radiator with reference to the boiler.
For my house, this proved to be the work-horse valve (No. 5). I use it on most of my radiators.
So you would definitely want to order a bunch of these and a few spares, just in case. Also double-check your radiator to make sure if you need this (angle) valve or the straight valve!
See my reviews of No. 4 and No. 6 valves for more details.
VS
Most Liked Negative Review
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Yes
This vent is used for small radiators in multiunit dwellings. I have had problems with
the manufacture's quality control for this item and two others purchased from supply house. The solution is to pre test them before installation. Supply house is a reliable
overnight vendor for these poducts
Showing 1-10 of 19 reviews
Wish I bought these years ago
Needed to replace several old Hoffman radiator vents in my home steam system, and after some market research and analysis, I decided to try the Gorton angle vapor equalizing valves, numbers 4, 5, and 6. I was hesitant to go from adjustable to non-adjustable valves, so I initially ordered 3 as a test. I was so pleased with the construction and performance that I ordered 4 more. These valves are well-designed, very well made, and according to Gorton, each valve is individually tested with live steam. These are functioning superbly in my system and I highly recommend them.
Bkeepr Tom
Middletown, MD
6 months ago
Verified Buyer
Was this review helpful to you?
Gorton steam vents are the best!
Great steam vents - they are virtually bulletproof. The key is to match these fixed opening (non-adjustable)vents to each radiator. Gorton has a chart that is helpful but trial and error is necessary. Once you have the correct size steam vent matched to each room radiator the vents are maintenance free.
Michael
Mount Kisco, NY
1 years ago
Verified Buyer
Was this review helpful to you?
Yes
This vent is used for small radiators in multiunit dwellings. I have had problems with
the manufacture's quality control for this item and two others purchased from supply house. The solution is to pre test them before installation. Supply house is a reliable
overnight vendor for these poducts
Doc
Brooklyn, New York
3 years ago
Verified Buyer
Was this review helpful to you?
yes
it worked
none
washington dc
5 years ago
Verified Buyer
Was this review helpful to you?
yes
it worked
none
washing ton dc
5 years ago
Verified Buyer
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As described
Good price and super fast shipping, shipped out the same day ordered.
Alex
New York
5 years ago
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Steam radiator vent just when I needed it
Gorton steam valve size 5 was delivered within a day of placing the order, exactly when my kitchen radiator needed it on the coldest day of 2020--thank you!
KrisC
Port Chester NY
5 years ago
Verified Buyer
Was this review helpful to you?
Does not work
Installed the radiator did not heat up when I checked the valve it would not let air through it is completely blocked
Merchant response
6 years ago
Sorry if you happen to receive a defective valve. Please call us at 888-757-4774 to file a warranty claim for replacement!
Ken
Manchester, CT
6 years ago
Verified Buyer
Was this review helpful to you?
yes
Original product with fast shipping.
Galo
lyndhurst, nj
6 years ago
Verified Buyer
Was this review helpful to you?
Great vent
Very quiet. These vents have a tapered fitting. Straight fittings usually won't connect to old radiators. Many other brands are straight only and they don't mention that in their write-up.
T2
MI
6 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: What is the difference between an angle valve and a straight valve?
Asked by AW 11 years ago
Add your answer
-
The angle is mainly used on the sides of radiators. The straight is used on the top of radiators. The device has to remain in the vertical position with that little vent on top. Actually that picture is almost upside down. It is the piping that determines which one you need.
Was this review helpful to you?
-
One has a bend in it (angle valve). Choose the valve for efficacy and fit, and keep in mind the steam needs to go somewhere, so angle versus fixed will be something to consider if you (don't) have the space.
Was this review helpful to you?
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