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Old 02-28-2009, 05:00 PM   #1
givemaboot
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Default QD part # for McMaster Carr?

I am purchasing a march 809, and I went to McM-C to get some QDs but I wasn't prepared for all of the choices. I am using 1/2 inch heavy duty tubing. thanks.


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Old 02-28-2009, 05:12 PM   #2
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Best bet is to "search" and read all the posts to find the plus/minus of various QD's.


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Old 02-28-2009, 05:13 PM   #3
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Quote:
Originally Posted by givemaboot View Post
I am purchasing a march 809, and I went to McM-C to get some QDs but I wasn't prepared for all of the choices. I am using 1/2 inch heavy duty tubing. thanks.
These are the parts I used.

6739K68 $8.01 HIGH FLOW HOSE COUPLING FOR COOLANT, SLEEVE-LCK SCKT,90 DEG BARB,3/8"CPLG, 1/2" HOSE ID (This one is right angle!)

6739K64 $6.47 HIGH FLOW HOSE COUPLING FOR COOLANT, SLEEVE-LCK SCKT X BARB, 3/8"CPLG SZ,1/2"HOSE ID (This one is straight through!)

6739K59 $1.93 HIGH FLOW HOSE COUPLING FOR COOLANT, PLUG, 1/2" NPTF MALE, 3/8" COUPLING SIZE

Reason: Updated Prices
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Old 02-28-2009, 05:33 PM   #4
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Are you happy with them? Is there a temp rating I should be worried about?
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Old 02-28-2009, 05:39 PM   #5
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Quote:
Originally Posted by BlindLemonLars View Post
These are the parts I used.

6739K68 $7.44 HIGH FLOW HOSE COUPLING FOR COOLANT, SLEEVE-LCK SCKT,90 DEG BARB,3/8"CPLG, 1/2" HOSE ID (This one is right angle!)

6739K64 $6.01 HIGH FLOW HOSE COUPLING FOR COOLANT, SLEEVE-LCK SCKT X BARB, 3/8"CPLG SZ,1/2"HOSE ID (This one is straight through!)

6739K59 $1.75 HIGH FLOW HOSE COUPLING FOR COOLANT, PLUG, 1/2" NPTF MALE, 3/8" COUPLING SIZE
Those are the same brass QDs that I use (90 and the plug)--- work great!
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Old 02-28-2009, 06:35 PM   #6
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Quote:
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Are you happy with them? Is there a temp rating I should be worried about?
Yeah, they work great and the price is right. They are rated up to 400 F, so no worries. Looking at their site today, I see the price has gone up slightly, but not much. (I'll go back and edit the prices.)

My hoses have a right-angle on one end, and a straight-thru on the other, which has worked out well. I like how the right angle one will hook on the edge of a kettle or tun and stay there.

Another nice thing is that a 1/2" hose will fit snugly over the plug just like a barbed fitting, so you can still use the fittings for temporary gravity feed purposes.

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Old 02-28-2009, 06:42 PM   #7
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I like the polysulfone ones from usplastics.com. They are rated up to 280*F.



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Old 02-28-2009, 10:31 PM   #8
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I'm extremely happy with the Mcmaster brass ones.


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