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OfflineCaptainLinger
A Fungus Amongus


Registered: 05/25/07
Posts: 1,756
Last seen: 3 years, 7 months
Re: Checking your PC gage [Re: Culland]
    #7540769 - 10/20/07 08:43 PM (16 years, 3 months ago)

I do not know how your PC works, so I don't know how the release valve works or how to explain it. The rocker, however, is based on incredibly simply physics (boyle's law). It's a metered weight on a metered area; there's absolutely no way for it to fail.
Quote:


My rocker may not rock due to the fact that its always sputtering along? Not sure.




Wait, what? "Sputtering along"? Once pressure is released you've reached the stated pressure. You should be *stopping* and turning the heat down the second that starts happening. Explain. The actual "rocking" motion is completely irrelevent.


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OfflineCulland
Stranger
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Registered: 09/12/07
Posts: 324
Last seen: 17 days, 6 hours
Re: Checking your PC gage [Re: CaptainLinger]
    #7541163 - 10/20/07 11:43 PM (16 years, 3 months ago)

Well here is my running theory. I don't think my petcock seals properly any more, so while its pressuring up its always leaking a tiny bit from the petcock. Sometimes I see a drop of water fall, whiffs of steam, and it makes a 'sputtering' as the water drips and burns off. Not sure how else to describe it sorry :frown: I think it's likely not pressuring up as fast as it could as a result, but it does pressure up.

When it hits 15 PSI on the gauge I turn down the heat and let it maintain that pressure till the necessary time has past, all the while the petcock will be sputtering along, but it doesn't actually 'rock' in place, nor does it sound or act any different at 15 PSI then it did at 10 PSI or 5 PSI. In testing if I let the pressure climb to 20 PSI the petcock will get forced up by the pressure and start venting steam in force as soon as it hits the 20 PSI mark and into the 'caution' area. After a few seconds of serious venting, the petcock drops back down and sputters along till I hit 20 again.

So in short I think my petcock never gets to a rocking point because its leaking just enough to not lift the petcock to a rocking motion, but not enough to prevent it from pressuring up. My secondary theory is that if the petcock pops ups at 20 PSI like it should, then the gauge is measuring the pressure accurately at 20 PSI and thus likely fairly accurately at 15 PSI as well.

Feel free to shoot my theories to hell :smile: I really do think the thing is safe though. May not be working up to snuff, but safe.

Cul


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