How much pressure can a sight glass withstand?

[Aus.Morgo]

Say a large size 1.5" TC version like what keg king offer? (yes I asked them, not sure)

http://kegking.com.au/1-5-inch-tri-clover-sight-glass.html

Would it handle around 15psi?

 

[Pnutapper]

Say a large size 1.5" TC version like what keg king offer? (yes I asked them, not sure)

http://kegking.com.au/1-5-inch-tri-clover-sight-glass.html

Would it handle around 15psi?

Can they tell you the wall thickness of the glass?

EDIT: All care - no responsibility, I reckon they would take 15 psi. You can just about stop that pressure with your finger.

 

[Aus.Morgo]

I'll send them an email and see. Any rough guess on thickness needed for the 15psi? or 20psi to be on the safe side?

 

[husky]

I use them at work all the time and some are on process lines at up to 6Bar.
Check out the attached calculator for some estimates:

http://www.geordi.com.au/Pressure Calc.htm

I have a Geordi one on the bottom of my conical and have ran it up to 1.5Bar without issues.

 

[Aus.Morgo]

Thanks