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Thread: Isceon 59 freezer puzzler
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09-02-2008, 10:27 PM #18
Re: Isceon 59 freezer puzzler
As you say, the equalizer pressure balances against the phial pressure, with the diaphram in between them. The resulting pressure is transferred to the valve by a shaft on the equalized side.
The shaft has a seal where it goes through the valve wall. Those seals sometimes leak. This was common on older valves, but shaft seal materials are much better nowadays.
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