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Old 03-09-2023, 21:54   #1
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Join Date: Aug 2009
Location: Lake Macquarie NSW
Boat: Chamberlin 11.6 catamaran
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O rings for 2514 watermaker pressure vessel

Gday all,

I have been very dumb and lost the O ring seals for the end fittings of my 2514 pressure vessel before I even installed the watermaker. Does anyone know the size for the seals and what type to get? I think it is silicone or EPDM seals but I don't know about the correct sizing. What size do people buy for new seals?

I have attached the drawings for the vessel.

cheers

Phil
Attached Files
File Type: pdf watermaker housing diagram.pdf (280.2 KB, 48 views)
catsketcher is offline   Reply With Quote
Old 04-09-2023, 11:52   #2
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Location: New England. USA.
Boat: McCurdy & Rhodes Custom 46
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Re: O rings for 2514 watermaker pressure vessel

There is not enough info in that drawing to determine the oring size. The oring diameter is determined by the groove depth and width as well as the id of the pressure vessel tube.
You can guess at those dimensions by scaling the print but it is likely easier and more reliable to ask the manufacturer for the oring size.
You would also need to know the designed compression.
If the orings are us sized there will be a so-called dash number that defines the size.
2-228 for example.
Since the vessel id is 64.5mm or 2.5” i’d guess it might be a common us size.
Maybe the same as other pressure vessels.
Good luck!
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Old 04-09-2023, 23:40   #3
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Re: O rings for 2514 watermaker pressure vessel

If you take the housing to a hydraulic repair shop, they can make orings to fit. Maybe a farm or fishing supply can make them.
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