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09-09-2008, 05:10 PM
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#1
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Boat Nut
 Platinum Member
Join Date: Dec 2005
Location: Florida
Posts: 1,882
Formula 272 Sold, 26 Infinity, 4 sale, 08-33' Avanti
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Brass, copper fittings in Stainless strainers?
Is it OK to use brass or copper fittings in a stainless sea strainer? Any dissimilar metal issues?
I have a tough tiime finding stainless, 1 1/4 NPT thread to water/hose barb pipe fittings.
Last edited by PARADOX; 09-09-2008 at 05:20 PM.
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09-09-2008, 05:19 PM
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#2
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Registered
Join Date: Oct 2003
Posts: 9,490
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Brass is the gold standard for breaking the dissimilar metals chain. That's what you use on connections between steel & copper. But you're going to rubber anyway so it doesn't matter.
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09-09-2008, 05:24 PM
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#3
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Boat Nut
Platinum Member
Join Date: Dec 2005
Location: Florida
Posts: 1,882
Formula 272 Sold, 26 Infinity, 4 sale, 08-33' Avanti
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Thx..
Teage sea strainers. SST./chrome... 1 1/4 Female NPT.. I need a male hose barb to go into the strainer so I can clamp the hoses to it. I found copper, for 1" hose. Found brass for 3/4' hose. Can't find stainless anywhere. Macmaster and Carr has something but I can't be sure it's a 1 1/4" NPT thread.
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09-09-2008, 05:31 PM
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#4
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Offshoreonly Advertiser
 Offshoreonly Advertiser
Join Date: Nov 2004
Location: Rohnert Park, CA
Posts: 932
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Quote:
Originally Posted by PARADOX
Thx..
Teage sea strainers. SST./chrome... 1 1/4 Female NPT.. I need a male hose barb to go into the strainer so I can clamp the hoses to it. I found copper, for 1" hose. Found brass for 3/4' hose. Can't find stainless anywhere. Macmaster and Carr has something but I can't be sure it's a 1 1/4" NPT thread.
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Try these out. Go all the way to the bottom of the page, straights, 45 degree and 90 degree. 
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09-09-2008, 05:33 PM
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#5
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Registered
Join Date: Jan 2002
Location: New Port Richey,FL
Posts: 76
11 Sea Hunt Triton 225
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I think I have 4 of them at my house I'll check when I get home.I live in NPR you looked at my 37 AT
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09-09-2008, 05:40 PM
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#6
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Registered
Join Date: Jan 2002
Location: New Port Richey,FL
Posts: 76
11 Sea Hunt Triton 225
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09-10-2008, 10:07 AM
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#7
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Boat Nut
Platinum Member
Join Date: Dec 2005
Location: Florida
Posts: 1,882
Formula 272 Sold, 26 Infinity, 4 sale, 08-33' Avanti
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Thanks Mark,,, Those might work ok, I was trying to get stainless.. I remember your boat... saw it in the oso adds, and I see the price is better now. 
You got to take that beast out.. Let me know when.. I might join you for a run or something.
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09-10-2008, 10:42 AM
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#8
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Registered
Join Date: Oct 2003
Posts: 9,490
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If you're screwing stainless into stainless, use a good liquid teflon pipe thread sealant or the bronze-based anti-seize. Or both. They may not gall going in, but they probably will coming out.
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09-10-2008, 04:20 PM
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#9
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Registered
Join Date: Jan 2002
Location: New Port Richey,FL
Posts: 76
11 Sea Hunt Triton 225
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Probably be out this weekend,weather looks good
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09-10-2008, 05:11 PM
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#10
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Offshoreonly Advertiser
Offshoreonly Advertiser
Join Date: Mar 2001
Location: Pompano Beach FL, USA
Posts: 1,577
1972 Cigarette 36 race
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Are you sure that is 1 1/4 thread? Typically the strainers are built with 1" NPT which happens to be close to 1 1/4 OD (standard merc sea pump inlet size).
We normally buy 6" x 1" npt nipples, put them in the lathe chamfer and turn down enough room for double clamps leaving a lip on the end. That way we get 2 fittings per nipple.
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