Brooks Instrument 1355B0AX5B2CK Variable Area Flow Meter

The Brooks Instrument 1355B0AX5B2CK is a glass-tube variable area flow meter (rotameter) that provides a direct, visual readout of gas or liquid flow with a calibrated scale in standard cubic centimeters per minute. Configured with a 0.25 in NPT process connection and a minimum flow specification of 430 scc/min, the unit is intended for inline installation in compact piping where a compact, mechanical flow indication is sufficient. Its glass-tube design pairs a sliding float with a transparent chamber to yield an immediate indication of flow rate without electrical sensors, making it well suited for clean services in laboratories, pilot plants, and light industrial processes. As part of Brooks Instrument’s variable area flow meter portfolio, the 1355 family emphasizes robust construction and readability, with multiple connection options and configurations to fit various line sizes and mounting arrangements.