[Public-list] Original gatevalve sizes

[Jack Vanderloo]

Thanks for taking the time to do this, Gord - what with being upside 
down, in wet snow and all!

The irony is that I'm doing the same job for the same reason.  You 
perchance also with Robertson & Robertson?  Must have mass-mailed the 
call for updated surveys.  (BTW, am I correct in assuming the survey is 
yet to be done?  Who are you lining up?  Perhaps we can get a twofer, or 
some such deal.)

Where did you source your ball-valves, thru-hulls, locking rings and/or 
nipples?  And, were you concerned about the bronze/brass issue?

I did some research in the alberg30.org archives and noted that Taylor 
Echlin (#612) had also gone through the experience recently ... with 
some interesting observations on the re-use of thru-hulls, backing 
plates and locking rings.
http://www.alberg30.org/pipermail/public-list/2004-June/000531.html

Jack
Aldabi KC641

Gordon Laco wrote:

> Hi Jack - 
> 
> I am in the middle of that job now.  I got a note from my marine insurer
> that this year I need a survey so decided to bite the bullet and change over
> from gate valves to ball valves.  Fairly horrible miserable job esp the
> cockpit drains and the scupper hoses... Besides the little flim flam with
> the changing diameter, we found that the ball cocks are taller than the gate
> valves.  What that meant was cutting the longitudinal bulkhead to allow the
> scupper hoses to come in at the right angle.  Then came the ordeal of trying
> to push the hoses onto the new hose barbs while upside down in the cockpit
> lockers, with wet snow falling on us.. Etc etc
> 
> But, the job had to be done.
> 
> Here is what was in my #426:
> 
> Engine cooling intake - 1/2"
> 
> Cockpit drains - 1" through hulls, but 1 1/4" hoses (did you hear cursing
> coming from the north the day I discovered that?)
> 
> Sink intake - was 3/8", I changed it to 1/2" (that one was one of those
> 'fake' through hulls Whitby used and I changed it)
> 
> Sink drain - 1" and I kept to that size
> 
> Head intake - was 3/8" and we went to 1/2"
> 
> Head overboard... Being a Great Lakes boat we don't have one of those.
> 
> Cheers - Gord #426 Suprise
> 
> 
> 
> 
>>Has anyone gone through a recent gate-valve to ball-valve/seacock
>>conversion, i.e., from the original gate-valves on a liner-vintage A30
>>(1977, 1978)?
>>
>>My boat is about 500km/300mi from home, so I'd like to document the
>>existing arrangement for planning/costing purposes while the water is
>>still hard.
>>
>>Aside from the engine discharge, what are the nominal sizes of the
>>following original GATE-valves:
>>Cockpit/deck drains
>>Engine cooling intake
>>Sink intake
>>Sink discharge
>>Heads intake
>>Heads overboard discharge
>>
>>Thanks
>>
>>Jack
>>Aldabi KC641
>>
>>
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> 
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