Press Connect In Refer

[Midwestrefer]

Hi, been in the business for 6-8 months. Came from plumbing background until work here in KC dried up.

My first ever question:
Had been using press connect - Viega and NIBCO - copper press connections in plumbing which had been saving my uncles firm a bunch of time PLUS was no-flame.
Why hasnt this technology been used in refrigeration. If its a compatability of the o-ring with R-410a surely there is an o-ring of a different material that would suit?
Called Viega, they were ZERO help.
Seems a no brainer to me. Googled flame free alternatives are they seem too high tech.

Thankyou
Sam

[install monkey]

in uk, vulcan loc rings are used apparently good for upto 60bar pressure but can leak if fitted poorly.

[Brian_UK]

Try Google, it's pretty good.

http://www.lokringusa.com/

[Midwestrefer]

thanks install monkey. I had searched the forum and came accross the pros and cons (mainly price) but wondered why press/viega technology hadnt been adapted. Or why it doesnt work?
Thanks Sam

[Brian_UK]

As Viega only guarantee the fittings to 85psi they wouldn't be much use in refrigeration when we test to 400psi and beyond.