What happens if your pressure gets too high?

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Old 10-28-08, 08:26 PM
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What happens if your pressure gets too high? Will the system automatically shut off? My pressure is around 30 psi when hot. I'm not entirely sure how to relieve some of that pressure though, so will it burn off/reduce itself?
 
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Old 10-28-08, 09:11 PM
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What is the pressure when cold ?

What type boiler ya got ?

What type expansion tank ?

How "HOT" is Hot ? at what temperature are you seeing 30 PSI ?

If it goes over 30 PSI, hopefully your pressure relief valve will work, and depending on the water temperature that relief valve may spew very hot water, or possibly steam ...

That's what _should_ happen ... won't shut off though, only let out enough pressure that it stays under 30 ...

So, if your relief valve isn't piped down to the floor, or a drain, then please correct that, and above all, don't stand near the relief valve when the pressure is real high !

My guess is first that your expansion tank needs maintenance or replacement, and second that there may be a problem with the feed water regulator valve.
 
 

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