Turning off Radiator/Air Vent Valve Drips

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Old 12-16-07, 11:24 AM
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Turning off Radiator/Air Vent Valve Drips

I am a novice. My home is about 45 years old. While I was trying to turn off my radiators by turning the valve above the air vent, the valve started to drip. No matter which way I turn, and no matter whether the valve is pushed down or pulled up, the drip won't stop, although I can make it drip faster or slower. It is an American, Float Type Air Vent No. 700. How do I stop the drip and how do I turn off the radiator?

Jerry
 
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Old 12-22-07, 04:35 PM
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Dripping air vent

Sorry for the delay in replying. For some reason I had not seen your question previously.

There may be a valve at the bottom on one end of the radiator. If you are just trying to shut down the heat for this radiator, closing this valve should do the trick. If the object is to stop the leak, the valve will not do that. You would have to drop the pressure in the system to less than that required to push water as high as the radiator. At that pressure you should be able to remove the air vent & replace it. I much prefer manual air vents to automatic ones on radiators.
 
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