3100mp User Manual - utuucknb.tk

product documents dwyer instruments - a comprehensive list of all instruction manuals for all our active and obsoleted products, knowledge base technical questions faq dwyer instruments - question hi flow control valves call out ansi b16 104 class iv flow leakage what does this mean answer ansi b16 104 is a testing specification for control valves this specification has actually been superseded by ansi fci 70 2 class iv the class iv designation defines the allowable amount of leakage through the valve seat in the closed position