Brooks Instrument 3630AD9Y2C5Z05 Variable Area Flow Meter

Brooks Instrument 3630AD9Y2C5Z05 is a variable area flow meter (rotameter) with a 0–4 gpm flow range, cross-referenced to 5618-1B1Z4. As part of Brooks' VA flow meter family, it provides a direct, passive flow reading by the position of a float inside a tapered measuring tube, requiring no external power to operate. This model is designed for inline liquid flow measurement in process and laboratory settings where simple, visual flow verification is preferred, with a calibrated scale that reflects flow in gallons per minute within the specified range for quick monitoring. The VA design supports straightforward installation and reading, making it a practical option when a compact, low-maintenance flow indicator is desired for low-to-moderate liquid flows.