ULM Measuring Pressures

R. Lambert

Registered
We've just started using our new Mahr ULM. Does anyone have any guidance as to measuring pressures for different types of gage? I am presently using 40 oz for cyl plugs, 16 oz for rings, 8 oz for small rings, and 16 oz for threads 20 - 40 TPI. Am I close to what is correct?
 

dwperron

Trusted Information Resource
These should help.

The ANSI/ASME standards do not dictate a contact force requirement when measuring pins, plugs and discs. For contact-based measuring instruments, Pratt & Whitney recommends that the contact force is the lowest force possible for which repeatable readings are assured.

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