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Torque Specs for NPT fittings

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n8vim(at)arrl.net
Guest

Posted: Sun Apr 15, 2007 2:03 pm Post subject: Torque Specs for NPT fittings

Does anyone know what the torque specs for the 1/8" and 3/8" NPT 

fittings are?

I can't seem to find them anywhere...



-Jim 40384

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Don

Joined: 18 Jan 2006
Posts: 13

Posted: Mon Apr 16, 2007 5:08 am Post subject: Re: Torque Specs for NPT fittings

Pipe thread fitting torque



1/8" Pipe   45-65 in-lbs

1/4" Pipe  70-110 in-lbs

3/8" Pipe  95-135 in-lbs

1/2" Pipe  110-140 in-lbs



Hope this helps

Don

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n8vim(at)arrl.net
Guest

Posted: Mon Apr 16, 2007 5:22 am Post subject: Torque Specs for NPT fittings

This helps a great deal!



Tim - Put this on your site with the other torque specs.. Please! 



Thanks!



-Jim 40384



Don wrote:



 	  Quote: 	
		  



Pipe thread fitting torque



1/8" Pipe   45-65 in-lbs

1/4" Pipe  70-110 in-lbs

3/8" Pipe  95-135 in-lbs

1/2" Pipe  110-140 in-lbs



Hope this helps

Don





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=107253#107253

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Rick S.

Joined: 12 Feb 2006
Posts: 347
Location: Las Vegas

Posted: Mon Apr 16, 2007 5:26 am Post subject: Torque Specs for NPT fittings

Don,



You can't get away with just posting the torque without reminding everyone how to calculate the torque while using a crows foot!!  



Flying out tonght to S n F on the commercial redeye, hope see everyone who's there over the next few days.



Rick S.

40185



do not archive

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_________________
Rick S.
RV-10
40185

n8vim(at)arrl.net
Guest

Posted: Mon Apr 16, 2007 5:45 am Post subject: Torque Specs for NPT fittings

Hey now... Give me some credit! 



I found the calculation for using a crow's foot in AC43.13, but never 

could find the NPT torque specs in there..



-Jim 40384



Rick wrote:



 	  Quote: 	
		  



Don,



You can't get away with just posting the torque without reminding everyone how to calculate the torque while using a crows foot!!  



Flying out tonght to S n F on the commercial redeye, hope see everyone who's there over the next few days.



Rick S.

40185



do not archive

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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wreining(at)gmail.com
Guest

Posted: Tue Apr 17, 2007 10:19 am Post subject: Torque Specs for NPT fittings

James Hein – where within AC-43.13 did you find the information on calculating torque when using a crow’s foot?  

I have downloaded the circular from the FAA site (it’s a bunch of PDF files), but I couldn’t locate this information..  

Thanks in advance.  

Bill Reining (with son Jon)  

40514 – tailcone (riveting the very aft, hard to get at, section!)  

       [quote][b]

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bgill1(at)charter.net
Guest

Posted: Tue Apr 17, 2007 2:16 pm Post subject: Torque Specs for NPT fittings

Not James but mine is an older 98 copy and under Section Bolts 7.43 figure 7-2. There are also some online calculators such as below – but verify results prior to actual use.  

   

   

http://www.norbar.com/torquewrenchextensioncalculator.php  

   

Byron – N253RV assigned  

Then never ending finishing section…  

   

--

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n8vim(at)arrl.net
Guest

Posted: Tue Apr 17, 2007 3:07 pm Post subject: Torque Specs for NPT fittings

I have the print edition, just purchased a few months ago AC43.13-1B

Section 7-43, Figure 2 "Torque wrench with various adapters"

In my print copy, it is page 7-8



-Jim 40384



Bill Reining wrote:



 	  Quote: 	
		   James Hein – where within AC-43.13 did you find the information on 

 calculating torque when using a crow’s foot?



 I have downloaded the circular from the FAA site (it’s a bunch of PDF 

 files), but I couldn’t locate this information..



 Thanks in advance.



 Bill Reining (with son Jon)



 40514 – tailcone (riveting the very aft, hard to get at, section!)



*

*

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