Nitrogen - the most widely used commercial gas - is the ideal tank blanketing gas when injected into the vapor space of a storage tank. It prevents ignition of flammable liquids, inhibits vapor loss, and protects chemicals, pharmaceuticals and foods from oxygen and moisture degradation. Nitrogen is also used as a purging agent and in cryogenic applications.
Mass flow measurement will monitor the nitrogen blanketing gas. A mass flow meter can track usage as a cost control measure and determine the when, where and by whom of gas usage. Flow monitoring of feed lines can prevent unsafe conditions that may arise when gas supply is insufficient.