Overview
The Brooks Instrument 1350EFC8BGC1A is a Sho-Rate low-flow glass tube rotameter designed for reliable flow measurement in chemical, petrochemical, analytical, and industrial applications. For a wide range of chemical, petrochemical, biotechnology, research and analytical applications, this glass tube variable area flow meter provides industry-leading repeatability and reliability. The direct-read borosilicate glass tube design ensures visual confirmation of flow in real time, making it an essential control element in process systems where precision and repeatability matter.
Key Features
- High Repeatability: Delivers up to 3% accuracy and 0.25% repeatability depending on the model—the 1350 configuration provides 5% accuracy with 0.25% Full Scale repeatability
- Glass Tube Construction: Borosilicate glass tube with rotating lens magnification for 180° viewing and easy-to-read direct-read scales
- Compact Design: Low-flow model with standard 65 mm scale length suitable for bench and panel-mounted installations
- Corrosion-Resistant Options: Material choices for scales, floats, fittings, and valves to accommodate demanding chemical and gaseous media
- Quick-Change Tube Assembly: Interchangeable tube design allows rapid scale or range changes without replacing the entire meter
- Integral Float Stop: Prevents float loss during maintenance or tube removal
Technical Specifications
The 1350EFC8BGC1A designation reflects a Model 1350 base configured with specific end fittings, O-ring materials, and valve options. Refer to Brooks Instrument configuration guides for exact flow range and material specifications for your part number.
- Accuracy: 5% of full scale (Model 1350)
- Repeatability: 0.25% Full Scale
- Tube Material: Borosilicate glass (corrosion and thermal-shock resistant)
- Scale Type: Direct-read with magnification and rotating lens
- Scale Length: Approximately 65 mm (standard low-flow configuration)
- Connections: Inlet connection at bottom end fitting; connections normally horizontal, female NPT
- Orientation: Mount within 6° of true vertical
- Float Stop: Integral design prevents float displacement
- Mounting: Panel or wall-mount compatible with standard industrial piping
- Certifications: Meets multiple national and international flow measurement standards
Typical Applications
- Process control in pharmaceutical and biopharmaceutical manufacturing
- Analytical instrumentation and laboratory gas/liquid metering
- Semiconductor processing and precision fluid delivery
- Chemical and petrochemical pilot plants
- Oil and gas laboratory and test equipment
- Medical device fluid delivery systems
- Low-flow gas or liquid monitoring where repeatability and accuracy are critical
Compatibility & Replacements
Compatible With
- Industrial process control systems requiring low-flow measurement
- Laboratory analytical equipment and instrumentation racks
- Pharmaceutical and chemical pilot-scale processes
- Standard NPT female piping connections (1/4″ and 3/8″ typical sizes)
- Flow control and needle valve integration (optional inlet/outlet valves available)
Replaces / Drop-In Replacement For
The Brooks Instrument 1350 series directly replaces other Sho-Rate 1350 configurations with compatible base models. Model 1350 meters can be substituted for one another if scale length, tube material, and connection type match. Verify your current part number configuration against Brooks documentation before ordering as field replacements.
Works With
- Brooks Instrument optional needle control valves and flow controllers (inlet/outlet mounted)
- Standard ISO metric and NPT piping systems
- Manual flow regulation and process valve integration
- Alarm initiators and bistable relays (where equipped with electronic options)
- Field calibration and recalibration services via Brooks Instrument repair centers
















