High pressure fittings

[bunnahabhain]

Hi everyone

We are planning to buy a Waters UPLC rated up to 1000 bar and I think about how to connect everything pressure-proof. Could everybody please share experience on which tubings and fittings are used? I found these https://www.idex-hs.com/fluidic-connect ... vel-x.html and Thermo's Viper (http://www.thermoscientific.com/en/prod ... stems.html) promising but I am open to alternatives

Regards
Jörg

[ATAlR]

Currently i'm only having experience with Agilent A-Line quick connect fittings and they do job good.
I heard a lot of good about Thermo's Viper but unfortunately had not been able to acquire one to test yet, also don't know the price comparison.

[Vlad Orlovsky]

here is our newsletter on our SmartFittings for Ultra-high pressures. It also describes different tubing:

http://www.sielc.com/upload/file/pdf/Ma ... ttings.pdf

Let me know if you have questions

[bunnahabhain]

What about reusability? Our working area requires frequent change of columns, so my main concern is that after 10 tightening/untightening cycles the integrated ferrule might be worn out. The MarvelX state "up to 200 times reusable" whatever "up to" means...

Jörg

[Vlad Orlovsky]

We are using our fittings in our QC stations and each runs 5-10 columns a day (meaning 5-10 installations), I don't remember when the fittings were installed but probably few months. Our fittings are finger-tight and unless you are using pliers or a wrench, I don't expect any issue with ferrules.