how does this valve and fitting work?

Brad White_185

Look in the Systems tab under Hot Water then under Gravity Hot Water.

http://www.heatinghelp.com/heating_howcome1.cfm

Look down near the bottom of that page...

IPTWOTW

G L Caplan

how does this work?

Hi folks...3 plumbers cant tell how this works
One heat guy says theres a "venturi" that sends water into the radiator..but I dont see what makes the water circulate thru the radiator

These pipes are the only ones entering this hot water radiator. The heat guy says the radiators on the floor are in series. The home owner says the radiators that have these valves, I believe all on 1st floor get nice n warm

Any one know the straight dope on this??

JohnNY

Venturi might be right.

I think of it more as a vane.

A portion of the water flowing past the valve is directed into the radiator by the vane and so that same amount of water is drawn out of the radiator simultaneously.
The heated, less buoyant, water finds its way to the cold portions of the radiator and that's how you get warm.

Someone else may do a better job explaining.

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nicholas bonham-carter

mystery valve

we have seen a picture of this type of valve on the wall in the last few months maybe there was some description with the picture--nbc

tim smith

I think it is like a monoflow tee

As John said, a venturi effect forcing higher velocity water into radiator from valve and then returning at a lower velocity back to valve. Neat idea. Tim

gerry gill

yup, Brad nailed it.

surely unique!

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Mark Eatherton

Uh huh...

Tis a unique valve. I have the Honeywell Hot Water Gravity book in my office. i will bring it home and copy that page.

I love the print and wording used in their books. In one place, they speak of systems operating without the Honeywell #1 heat generator and say "If you have a system that is working well without the heat generator, it's OK, we understand..." or something to that effect.

ME

Jim Bennett

Go Brad!....

Love the internetese, IPTWOTW

It pays to wander off the wall.

Jim

Timco

Dave Stroman has one I saw while I was at Wetstock. It has a divider in the middle, and forces water into the rad from one side and sucks from the other side. Very unique valve...

Tim

DanHolohan

From the Library

Here's the patent for the Unique valve

And if you look in this Honeywell catalog on page 23, you'll find more on the the valve.

It does pay to wander off the Wall.

joe_108

What a great book to have in one's library. I have never seen this valve installed, but i did give Dan H a OS fitting a few years back

Unknown

Neat!

I like the next section where it describes the huge T'stat with clock as "small and attractive". LOL...

Great publication, now part of my files, thanks!

Edward A. (Ed) Carey_3

Mercury

Really cool book Dan.

Did you read in that book how they talk about how SAFE Mercury is????


Ed Carey

Big Will

Dan is the man

with the history. Dan the best part about the way you present your books is the blending of history with modern technology. So often I find people in the trades focusing on the newest technology and products that will be disposable in a few short years. Your application of the history of the trade commands respect.