Difference between lbs and class#
Difference between lbs and class#
(OP)
thread408-21855: Difference between "CLASS" and "LBS" in "Valves"
for my new project, my specifications for Y-strainer call for 600lbs but my supplier offer for #150. Anyone know where to refer the difference between 'lbs' and class pressure rating?
for my new project, my specifications for Y-strainer call for 600lbs but my supplier offer for #150. Anyone know where to refer the difference between 'lbs' and class pressure rating?





RE: Difference between lbs and class#
You need to use class and design pressure.
On the minimal information provided it would appear to be incorrect by the vendor. Maybe he doesn't make class 600 strainers.
Don't use lbs or # in a specification to indicate class. It is incorrect and doesn't mean anything.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Difference between lbs and class#
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
RE: Difference between lbs and class#
And as others mentioned, the correct designation now is "class" rather than "lbs" or "#" or "pound".
RE: Difference between lbs and class#
Being exposed to the US-based specifications for valves at the start-up of the North Sea oil exploration some decades ago, was a though ladder to climb. This especially as the (US) English language is 'unprecise', containing abbreviations, slang, and is more than many other languages depending on that 'everyone familiar with the branch' knows what the exact meaning of abbreviated words and half explanations are.
Please therfefore, pretend that all we foreigners are ten years old, and have never heard of the 'technical contraption' you are about to specify, please be exact and complete!