What kind of valve is this?

[Alex345]

Hi guys,

Any idea what this thing is? Found it in box of junk and thought i looked like it had some kind of use.

Pic 1:


Pic 2:


Pic 3:


Pic 4:


Pic 5:


If you screw out the brass screw with the hole in it seen on pic 4, it exposes a VERY thick brass spring. You can't compress it with your fingers.

I did some searching, the closest thing i could come up with is that its some sort of radiator valve?

[POLAND_SPUD]

looks like a pressure reducing valve (regulator)

[Alex345]

I was thinking something similar too. I just don't get why it has 4 ports. Of which 3 of them allow airflow.

I think I'm gonna take it apart, if it is a regulator, it has very little spudding use to me anyway.

[Technician1002]

The very thick spring may be bi-metalic. It looks like a tempering valve. They are used in larger buildings with hot water heat. The water boiler temperature is too hot to feed to a sink. They take really hot water on one side and cold water on the other and the output feeds a sink or shower so the outlet temperature stays near 130 degrees F instead of over 200.

The adjustment is the temperature setting.

Tempering valve Google it.

[mattyzip77]

It looks to me like a regulator for a furnace and or a hot water heater. P M Mr. Crowley and ask him. He seems to know everything about anything!!

[Gun Freak]

I think its a regulator; I just found this video:
[youtube][/youtube]

[Alex345]

Thats it alright, no doubt about it! Bummer, that means it has little to no use for me now

Thanks anyways guys!

[Gun Freak]

I'm sure you'll find a use for it sooner or later! I know I could use one right now!

[Alex345]

Haha what a coincidence! Well i just ordered myself a 3/4 QEV (European type) For my latest project. If it turns out nice I'll post it