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Product Highlights
–
1/8"
Steam
240°F Max Temp
Steel
Angle
Male Thread Type
Description
–
Gorton GCA Gorton No. C Angle Vapor Equalizing Valve
A Gorton steam radiator vent (vapor equalizing valve) used to vent air from radiators in steam heating systems to help balance heat distribution when the correctly sized vent is required.
Key Features
Compatibility & Applications
Installation & Operation Notes
Maintenance & Troubleshooting
User Reviews & Q&A Summary
A Gorton steam radiator vent (vapor equalizing valve) used to vent air from radiators in steam heating systems to help balance heat distribution when the correctly sized vent is required.
Key Features
- Application listed as Radiator Vent for Steam systems
- Gorton No. C model, non-adjustable
- Angle body pattern with 1/8" male connection/thread size
- Temperature range listed: 140°F - 240°F
- Manufacturer states that using correctly sized Gorton vapor equalizing valves on each radiator helps the system heat fast, even, and comfortably room-to-room
- Manufacturer guidance for No. C: install on radiators farthest from the boiler and in the coldest rooms (example given: third-floor radiators); venting capacity is stated as equal to 15 ordinary type air valves
- Manufacturer states design attributes including fast venting, quick acting, sure seating, positive draining, and factory tested; the thermostatic bi-metal actuator closes the valve on exposure to steam to help prevent steam loss, and the design allows condensate to drain to reduce waterlogging risk
Compatibility & Applications
- Intended for steam radiator venting applications, with manufacturer guidance to use the larger No. C on radiators farthest from the boiler / coldest rooms.
- Must only be used where the manufacturer specifies this exact part number and model: Gorton GCA (No. C, Angle).
Installation & Operation Notes
- Installation should be performed by a qualified steam/heating technician.
- Reference the steam heating system's service/installation documentation for safe shutdown, vent replacement procedure, and correct vent sizing by radiator/location.
- Follow manufacturer guidance on placement/sizing to balance the system (No. C is identified for farthest/coldest-room radiators).
Maintenance & Troubleshooting
- This part is commonly involved when addressing uneven heating, slow-to-heat radiators, or a system that needs better balancing through correct vent sizing.
- Manufacturer documentation emphasizes that correct sizing/placement supports faster air elimination and more even heating, and that the valve's quick-closing action on steam helps prevent steam escape; the positive draining design is intended to reduce failures related to waterlogging.
- If a vent fails to close properly (steam leakage) or does not vent as expected, follow system troubleshooting guidance to confirm correct vent selection and replacement.
User Reviews & Q&A Summary
- Review themes frequently mention improved comfort and more even heat after installation, especially when upgrading to a larger vent on a cold room or distant radiator.
- Many reviewers describe it as a reliable, correct-fit replacement and prefer the non-adjustable format to avoid "guessing" vent settings.
- Several comments highlight positive purchasing experiences (easy ordering, fast shipping); a few note occasional shipping damage handled through replacement.
- A minority of feedback reports out-of-box issues (e.g., vents not closing properly), framing it as a defective-unit experience rather than typical performance.
Specs
–
| Application: | Radiator Vent |
|---|---|
| System Type: | Steam |
| Size: | 1/8" |
| Model: | Gorton No. C |
| Adjustability: | Non-Adjustable |
| Material: | Steel |
| Body Pattern: | Angle |
| Thread Type: | Male |
| Max Temp (F): | 240°F |
| Temperature Range (F): | 140°F - 240°F |
| Min Temp (F): | 140°F |
| Thread Size: | 1/8" |
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Product Reviews
4.69 out of 16 reviews
93% would recommend this product
5 star
88%
4 star
6%
3 star
0%
2 star
0%
1 star
6%
Most Liked Positive Review
They arrived looking used, but work just fine.
I replaced a pair of Heattimer Varivalve vents with these. They came packaged sealed in plastic, but when I removed them they were dirty and the tips looked as though they had been inserted into a radiator previously. No complaints as they work as well as a new one. No more guessing with the adjustable Varivalves. Both radiators on the same tree now heat identically. Shipping is as good as you would want it. I'm a longtime customer and will continue to be.
VS
Most Liked Negative Review
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Both valves were DOA
I have many old valves on my steam convectors, but, as they say, they don't make them like they used to. The old valves close quickly and positively when the steam reaches them, but these do not close at all. Quite disappointing for an established manufacturer like Gorton.
Showing 1-10 of 16 reviews
great product
solved all my problems
spike
New Jersey
5 months ago
Verified Buyer
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My go-to retailer for Gorton valves
I'm slowly replacing all the valves on my steam radiators—Supply House always has the one I need and the shipping is incredibly fast! Thank you!
KrisC
Port Chester NY
2 years ago
Verified Buyer
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Perfect
Just what I needed. I had been replacing steam air vents every other year made by an unnamed mfr(rhymes with Fade-O-Fist). Checked the one I never had problems with... Gorton's.
Lcopper
Chicago
5 years ago
Verified Buyer
Was this review helpful to you?
Great product and customer service!!!
The product was exactly what I needed. Ordering was a breeze and delivery was quick. One of my valves was bent in shipping and they expedited a meeting one out right away!
Windy
Minneapolis, MN
6 years ago
Verified Buyer
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Would definitely buy fro you again!
This is the same exact replacement from the one I removed. It's always good to find a vendor that has the exact parts you need. Thanks guys.
Jimbo321
Yonkers, NY
6 years ago
Verified Buyer
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I would buy this product again
Gorton vents are working great. Thank you
Mohamed
NJ
7 years ago
Verified Buyer
Was this review helpful to you?
They arrived looking used, but work just fine.
I replaced a pair of Heattimer Varivalve vents with these. They came packaged sealed in plastic, but when I removed them they were dirty and the tips looked as though they had been inserted into a radiator previously. No complaints as they work as well as a new one. No more guessing with the adjustable Varivalves. Both radiators on the same tree now heat identically. Shipping is as good as you would want it. I'm a longtime customer and will continue to be.
Chachi
Boston, MA
8 years ago
Was this review helpful to you?
Gorton Valves are the best
My house with steam radiators had a weird mix of radiator valves. After installing the appropriate sized gorton Valves, the heat is much better balanced. I have old ones installed that have been working fine for many years.
jk
Montclair, NJ
8 years ago
Verified Buyer
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Both valves were DOA
I have many old valves on my steam convectors, but, as they say, they don't make them like they used to. The old valves close quickly and positively when the steam reaches them, but these do not close at all. Quite disappointing for an established manufacturer like Gorton.
HAD2
NY
8 years ago
Verified Buyer
Was this review helpful to you?
the valve allowed more heat from my steam radiator
immediately after putting the new , larger valve on my old steam radiator, five degrees more of heat was produced. It has made my room comfortable.
toby
Massachusetts
9 years ago
Verified Buyer
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