Honeywell concentric radiator valve

Gary P

I think I have what is called a concentric radiator valve, It has one connection to the radiator and 2-3/4" connection to the hot water heating system. I read about it in one of Dan's books, but can't remember which.



I am looking for a replacement valve or parts. Some one has removed the union 90 and I am stuck.

DanHolohan

Unique Valve

Here's a link to the patent (thanks to Gerry Gill!)

http://www.heatinghelp.com/article/153/Older-Hot-Water-Systems/1213/Mark-C-Honeywells-Patent-for-the-Unique-valve



I don't know of any parts for this.

Gary P

Honeywell Radiator valve

Dan,



Thank you for the help, my customers previous plumber took the union half away to match it up. Never heard back from the guy.



I offer the customer to convert it to 2 pipe.



Customer loves his radiators, recently had the whole house radiators refinished and powder coated.



First house I have come across theses valves.



I have attached a photo of a placard I came across at a recent steam boiler change out. Though you might like it. Job in Watertown CT



Unfortunately my demolition guy scraped it with the boiler.



Thanks for all your help.



Have a nice holiday.

DanHolohan

Nice!

Great advice. Thanks for sharing! 

The Steam Whisperer (Formerly Boilerpro)

They are replacements for those....

one of the European makes   Danfoss,  Macon.....makes a single entry hot water valve.

clammy

Oventroupe

Oventroupe makes asingle entry valve but as far as i know it's orination is differnert but take a look thru there catalog they may have it except i have not seen one ,with a little imagation and using a dip tube and a cross tee you can make one the operates simalar ,i have a large steam rad that i converted to a hot water rad using a onnly one side with supply and return and a dip tube inserted 3/4 of the way into the rad works very well .Hope this helps peace and good luck clammy