Brian,
Are you considering using an O-ring seal for a
through hull prop shaft seal?
O-rings are a good seal for shafts that turn a few
turns slowly but there are better seals for prop shaft seals. For that you
should consider a seal made for a water pump shaft. They're
usually, carbon against ceramic, spring loaded seals.
Dan H.
----- Original Message -----
Sent: Friday, March 26, 2004 12:39
AM
Subject: Re: [PSUBS-MAILIST] Stainless
& O rings
Yes Parker does make "o" rings for the space
shuttle. http://www.parker.com/ead/cm2.asp?cmid=3106
Right there was nothing wrong with the seals, I never said there was anything
wrong with the seals. The material I am using for shaft and thru
hull is 1 1/2" dia. solid 316 stainless steel.
Brian
----- Original Message -----
Sent: Thursday, March 25, 2004 1:08
PM
Subject: Re: [PSUBS-MAILIST] Stainless
& O rings
I think you should check your facts on this one, I don't
believe parker had any interest in manufacturing those rings. Besides,
there was nothing wrong with the seals. They where never designed to operate
at the temperature that morning, it was to cold, thats all. You may
also want to look at an alternate procedure for your junk pile through hull
shat fitting. The type of fitting your refuting to is a stuffing box
and is good for only about one atmosphere, plus it is designed to drip water
for cooling and lubrication.
Note: Parker is the company that supplied the "o" rings for the space
shuttle that blowed up. But maybe nasa didn't check the
specs?
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