How do I tell the difference between these type of O-rings?
I read that Nitrile is only good up to 250F while Viton can handle 400F.
I thought of a simple test:
Sandwich a o-ring test subject in two metal washers and clamp it on a vice.
I turned on my MAPP torch and went to work on the washers... turning them red hot and letting it cool down.
After about 2 of these "tests", the test o-ring popped loose without cracking, melting, or otherwise deteriorating.. but it wouldn't pop back up to its normal thickness and some of the external material clung to the metal washer.
I'm not sure (I dont have an IR thermometer) but when the metal is red hot, it would most likely be above 250F ... right?
Or is there a simpler test? I know they sell a testing device but I wanted a simple way of doing this without costing me a whole lot of money.
I read that Nitrile is only good up to 250F while Viton can handle 400F.
I thought of a simple test:
Sandwich a o-ring test subject in two metal washers and clamp it on a vice.
I turned on my MAPP torch and went to work on the washers... turning them red hot and letting it cool down.
After about 2 of these "tests", the test o-ring popped loose without cracking, melting, or otherwise deteriorating.. but it wouldn't pop back up to its normal thickness and some of the external material clung to the metal washer.
I'm not sure (I dont have an IR thermometer) but when the metal is red hot, it would most likely be above 250F ... right?
Or is there a simpler test? I know they sell a testing device but I wanted a simple way of doing this without costing me a whole lot of money.