Copper or nylon olives?

[rodtheapprentice]

Hey guys.

Not sure if here's the best place to ask, but a mate told me that nylon olives are not as heat resistant as copper olives.

I'm eyeing the elbows specifically:

(broken link removed to https://forgeplumbing.com.au/c-4-brass-pipe-fittings.aspx)
(broken link removed to https://forgeplumbing.com.au/c-91-compression-nylon.aspx)

Any opinions??

 

[brenndatomu]

You must be referring what we call ferrules.

Yeah, I'd agree with that statement.

 

[peakbagger]

I worked with a couple of technicians who had been installing instrumentation tubing for 40 years on high pressure equipment. If they had a choice they did flare fittings, car companies do the same as well as HVAC equipment. Ferrules are faster with less prep but they can be made up improperly.

 

[ericm979]

Any opinions??

What's the application?

 

[Corey]

Nylon melts around 430F/220C and copper melts around 1980F/1080C, so I'd label that statement "True".