Application Notes| Chemical Injection/Dosing Systems |
 Injecting a relatively small flow of chemical liquid – into a larger stream is a common control challenge. Common injectants are anti-foaming agents, corrosion inhibitors, descalers, biocides, oxygen scavengers, odorants, dyes, and neutralizing agents.Brooks’ metal tube variable area meters – such as the MT3809 shown – are widely used for these applications in a variety of industries because they offer flow rates and materials of construction that solve many challenges. Of special note is Brooks’ very high pressure variable area capability (1000 bar/15,000 psi), especially useful for well-head injection applications. The Brooks Quantim Series Coriolis mass flow controller is an excellent solution when the mass of the injectant is very low or when extremely accurate addition measurements are required. For example, users injecting mercaptan into propane can achieve far tighter control than with other addition technologies, ensuring compliance with regulations while eliminating the expense of excess addition. Other Application Notes
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