Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 05-03-2016, 11:33   #1
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Bronze hose barbs 3/8" NPT male x 5/8" hose

Hello.

Does anyone know where I might find bronze hose barbs with the above dimensions? I've googled quite a bit but unable to find them.

I'm not looking for the brass fittings that are everywhere.

A little while ago I needed similar with a 90 degree bend and I made them by drilling out, cutting and cutting a thread on larger bronze elbows, but I would prefer to buy them.

Thank you.
__________________

__________________
windsunrain is offline   Reply With Quote
Old 05-03-2016, 14:08   #2
Registered User

Join Date: Jul 2009
Location: 2017 - cruising west coast of Italy
Boat: Amazon 49 cutter, custom steel boat built in Surrey, Canada
Posts: 430
Images: 1
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Fisheries Supply has a Groco bronze adapter from 1/2" pipe to 5/8" hose barb. You should be able to find a way to bush that to 3/8" without too much trouble.

GRO PTH-5062 PTH-5062 In Stock Straight Pipe to Hose Adapters, 1/2" or 5/8" Hose x 1/2" Pipe $5.39

Cheers!

Steve
__________________

__________________
website www.orontes2.com
steve77 is offline   Reply With Quote
Old 05-03-2016, 23:01   #3
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Hi Steve.

Thank you for looking that up. I've seen those and that may be the solution. There are reducing bushings are available in bronze and 3/8" close nipples are available in red brass, which should be adequate. Doing it this way will require more space. I'll see if that would work.

Cheers.

Michiel

Quote:
Originally Posted by steve77 View Post
Fisheries Supply has a Groco bronze adapter from 1/2" pipe to 5/8" hose barb. You should be able to find a way to bush that to 3/8" without too much trouble.

GRO PTH-5062 PTH-5062 In Stock Straight Pipe to Hose Adapters, 1/2" or 5/8" Hose x 1/2" Pipe $5.39

Cheers!

Steve
__________________
windsunrain is offline   Reply With Quote
Old 05-03-2016, 23:37   #4
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,160
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

I think you'll find that 5/8" id hose will fit nicely on a 3/8" pipe nipple. I'd use a 2" nipple and cut the threads off of one end so they don't cut the inside of the hose. If you're uncomfortable clamping on a smooth surface, file a groove into the nipple where the clamp will go.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 06-03-2016, 09:22   #5
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Quote:
Originally Posted by HopCar View Post
I think you'll find that 5/8" id hose will fit nicely on a 3/8" pipe nipple. I'd use a 2" nipple and cut the threads off of one end so they don't cut the inside of the hose. If you're uncomfortable clamping on a smooth surface, file a groove into the nipple where the clamp will go.
That's a good idea.. thank you!
__________________
windsunrain is offline   Reply With Quote
Old 06-03-2016, 09:37   #6
Registered User
 
psneeld's Avatar

Join Date: Oct 2010
Location: Avalon, NJ
Boat: Albin 40 double cabin Trawler
Posts: 1,831
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

If for an engine coolant circuit (usual use for 5/8 hose), you can use brass versus bronze which are very hard to find (though stainless is less hard to find).

Brass ones in several NPT sizes are usually at any US auto parts store because many heater hoses are 5/8.
__________________
psneeld is offline   Reply With Quote
Old 06-03-2016, 09:48   #7
Registered User
 
deblen's Avatar

Join Date: Oct 2014
Location: Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 1,400
Images: 1
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

You are looking for a "bronze insert adapter" 5/8" hose x 1/2" NPT.

BRONZE HOSE ADAPTOR 1/2" NPT TO 5/8" HOSE Binnacle.com

Groco also sell them along with their raw water filters.

http://catalog.buckalgonquin.com/vie...rs-combination

Cheers/ Len
__________________
My personal experience & humble opinions-feel free to ignore both
deblen is offline   Reply With Quote
Old 06-03-2016, 09:53   #8
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Quote:
Originally Posted by psneeld View Post
If for an engine coolant circuit (usual use for 5/8 hose), you can use brass versus bronze which are very hard to find (though stainless is less hard to find).

Brass ones in several NPT sizes are usually at any US auto parts store because many heater hoses are 5/8.
This is for the salt water pump. I would rather not use brass.

I have a Volvo Penta MD11-D with a Johnson F35B-9 pump with clamped fittings. I don't like those fittings and I'm replacing the pump body with one that has 3/8" NPTF fittings (pump model #10-35157-6, body is part #01-35096-2).
__________________
windsunrain is offline   Reply With Quote
Old 06-03-2016, 09:56   #9
Registered User
 
deblen's Avatar

Join Date: Oct 2014
Location: Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 1,400
Images: 1
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Quote:
Originally Posted by windsunrain View Post
This is for the salt water pump. I would rather not use brass.

I have a Volvo Penta MD11-D with a Johnson F35B-9 pump with clamped fittings. I don't like those fittings and I'm replacing the pump body with one that has 3/8" NPTF fittings (pump model #10-35157-6, body is part #01-35096-2).

3/8" water pump">raw water pump?? Are you sure it's not 1/2" NPT?

Cheers/ Len
__________________
My personal experience & humble opinions-feel free to ignore both
deblen is offline   Reply With Quote
Old 06-03-2016, 10:35   #10
Registered User

Join Date: Mar 2008
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

I suspect you have a Oberdorfer pump with 3/8NPT fittings like I do. I too needed a 3/8NPT x 5/8 hose adapter for the inlet side. I never did find them. Down Wind Marine in San Diego (downwindmarine.com) was the best source for bronze fittings I found. They have a 1/2"NPT x 5/8 hoes adapter plus a 3/8NPT x 1/2NPT bell reducer coupling + a close 3/8 nipple. Researching with the manufacturers I found not one that made a 3/8NPT x 5/8Hose adapter. Down Wind also carried a Marelon 3/8 NPT x 1/2" hose adapter I needed for the outlet side on my set up. Someone previously had used, in my pump, brass fittings which had "de=zinc'd" disintegrated.
__________________
thudbranch is offline   Reply With Quote
Old 06-03-2016, 14:49   #11
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Quote:
Originally Posted by deblen View Post
3/8" raw water pump?? Are you sure it's not 1/2" NPT?

Cheers/ Len
Positive!
__________________
windsunrain is offline   Reply With Quote
Old 06-03-2016, 15:01   #12
Registered User

Join Date: Dec 2014
Location: Point Roberts, WA, USA
Boat: Cooper 316
Posts: 23
Re: Bronze hose barbs 3/8" NPT male x 5/8" hose

Quote:
Originally Posted by thudbranch View Post
I suspect you have a Oberdorfer pump with 3/8NPT fittings like I do. I too needed a 3/8NPT x 5/8 hose adapter for the inlet side. I never did find them. Down Wind Marine in San Diego (downwindmarine.com) was the best source for bronze fittings I found. They have a 1/2"NPT x 5/8 hoes adapter plus a 3/8NPT x 1/2NPT bell reducer coupling + a close 3/8 nipple. Researching with the manufacturers I found not one that made a 3/8NPT x 5/8Hose adapter. Down Wind also carried a Marelon 3/8 NPT x 1/2" hose adapter I needed for the outlet side on my set up. Someone previously had used, in my pump, brass fittings which had "de=zinc'd" disintegrated.
Thank you. I actually do have a centrifugal Oberdorfer pump to circulate coolant, but this is for the Johnson impeller pump I described.

Isn't it odd that this is so hard to find? My heat exchanger also has 3/8" threads. For the heat exchanger, I used bronze hose fittings that had a 90 degree elbow and enough room to cut part off and cut a 3/8" thread on them. They also had to be drilled out because the passage was too narrow.

A manufacturer should pick this up.
__________________

__________________
windsunrain is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sealant for NPT fittings? Saltyhog Plumbing Systems and Fixtures 18 30-04-2013 09:37
Barbs leaking rj_whitten Plumbing Systems and Fixtures 21 25-03-2011 23:05
NPS vs NPT Thru Hulls Sailorman375 Construction, Maintenance & Refit 4 02-01-2011 09:36
NPS Bronze Elbow to NPT Pump Question SkiprJohn Construction, Maintenance & Refit 10 14-05-2009 11:19
Seacock NPS thread: NPT fitting sildene Plumbing Systems and Fixtures 9 22-04-2007 21:11



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:43.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.