New valves for an old vapor system..

tmw

I've got an Arco Model K vapor orifice system and am looking for some new valves. Does anyone produce a thermostatic valve with an adjustable orifice? 

Unknown

Thermostatic Orifice Valves

Hi - Try Tunstall. They make Macon TRVs.   http://www.maconcontrol.com/inletorifice.html

- Rod

Steamhead

Not that I know of

you'd need to add an orifice plate. But a TRV already has some resistance built in, so you may not need to add any.

tmw

much thanks for the replies...

and Steamhead, what say you about rebuilding the original valves?

Steamhead

Still working on that

I got back and hit the ground running, a lot of systems developed problems over that first cold weekend. We're almost caught up, just in time for the next one. 24 inches of snow so far.......

The Steam Whisperer (Formerly Boilerpro)

Adjustable orifice Valves..

Check out "Mepco" and "Barnes and Jones".  Mepco lists one and B and J aldo has something, I think.



Boilerpro

Steve_210

Model K vapor system

we just added 250 orifice plates to a system. 150 were trv;s 100 regular and the rest are original model k. while it got rid of the water hammer some of the original rads now heat better than the new. i wish the new orifaces were adjustable.

Unknown

Adjustable Orifice Valves

I think these are the ones that Boiler Pro was mentioning.

tmw

thanks for all the replies..

I've seen several brands of adjustable orificie valves. Is it possible to add individual thermostatic regulation to them?

The Steam Whisperer (Formerly Boilerpro)

Wellll......

You could purchase the Mepco valves and then have Tunstall build TRV inserts for them.  They do custom work.



Boilerpro