Hose/Fitting fastening torque
Hose/Fitting fastening torque
(OP)
Some of my guys rarely finish a piping job with no leaks. Watching them they seem to over-fasten if anything. I read that fastening torque is important and came accross some sketchy info on a method of measuring the number of flats and also some tables specifying fastening torque.
What is the best approach to prevent over/under torque?
Is there a suitable torque wrench system for open ended spanners?
Where can I find a comprehensive torque guide?
Your assistance will be greatly appreciated because I am tired of fill-up buying oil!
What is the best approach to prevent over/under torque?
Is there a suitable torque wrench system for open ended spanners?
Where can I find a comprehensive torque guide?
Your assistance will be greatly appreciated because I am tired of fill-up buying oil!





RE: Hose/Fitting fastening torque
I know this does not answer your specific question but proper training would address the issue once and for all.
Dan Helgerson CFPS, AFPI, AJPP
www.cfpsos.com
RE: Hose/Fitting fastening torque
As for wrenches, you can get flared crow’s feet from major tool suppliers like Mac. They would be ok for the smaller sizes but get pricey in larger sizes. Some people make their own by buying old wrenches at the flea market etc. then cutting them off and welding on a nut.
When you are using an adapter with your torque wrench you have to do a little math to compensate for the extra length. The formula is at the site below as well as a picture on bottom of the previous page of same site.
http://www.tpub.com/air/3-8.htm