Please tell me:
If a system purges using ambient air throughout (which is already 70% nitrogen), why then is it necessary to use bottled nitrogen when testing? Solenoids and valves still open and close and possibly arch/spark occassionally (when atmospheric air is present). Why this precaution when the system exists and operates with 20% O2 all the time anyway?
Neil
If a system purges using ambient air throughout (which is already 70% nitrogen), why then is it necessary to use bottled nitrogen when testing? Solenoids and valves still open and close and possibly arch/spark occassionally (when atmospheric air is present). Why this precaution when the system exists and operates with 20% O2 all the time anyway?
Neil
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