Variable Area Flowmeter, 65 mm, Aluminum Fitting, 1/8" NPT(F), 145 mL/min. (Air), 2.3 mL/min. (H2O), Cartridge Valve

Ideal for precise low flow rate measurements|Corrosion-resistant stainless-steel fittings ensure long-term reliability|Easy installation and exchange of flow tubes|Non-rotating adapter prevents tubes from turning|Panel mounting with hex nuts makes installation simple and secure|Chemical compatibility|1 year warranty|These single flow tube variable area flowmeters with cartridge valves are designed for precise low flow rate measurements of air and water in mL/minute at a given set of pressure and temperature parameters. The Optigrad 65 mm universal millimeter scale minimizes parallax and eye fatigue. Particularly suitable for metering carrier gases in chromatography, indicating and controlling gases in manufacturing processes, liquid and gas measurement in laboratories, and pilot plants. Built-in high-resolution control valves offer high sensitivity control and resolution in conjunction with metering tubes of very low flow rates. Other features include standard mounting fittings, side plates, thick protective magnifying front shield and back plate, and flow tubes.