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What kind of valve is this?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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What kind of valve is this?

Unread postAuthor: Alex345 » Sun Jul 17, 2011 10:49 am

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:
Image

Pic 2:
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Pic 3:
Image

Pic 4:
Image

Pic 5:
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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?
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Unread postAuthor: POLAND_SPUD » Sun Jul 17, 2011 10:59 am

looks like a pressure reducing valve (regulator)
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Unread postAuthor: Alex345 » Sun Jul 17, 2011 11:11 am

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.
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Unread postAuthor: Technician1002 » Sun Jul 17, 2011 1:17 pm

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.
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Unread postAuthor: mattyzip77 » Sun Jul 17, 2011 5:06 pm

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!! :idea:
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Unread postAuthor: Gun Freak » Mon Jul 18, 2011 8:33 am

I think its a regulator; I just found this video:
[youtube]http://www.youtube.com/watch?v=0Zy3AvDSv5Q&NR=1[/youtube]
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Unread postAuthor: Alex345 » Mon Jul 18, 2011 9:25 am

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

Thanks anyways guys!
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Unread postAuthor: Gun Freak » Mon Jul 18, 2011 9:29 am

I'm sure you'll find a use for it sooner or later! I know I could use one right now! :D
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Unread postAuthor: Alex345 » Tue Jul 19, 2011 6:59 pm

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 :wink:
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