The Dwyer Instruments RSF114 is a precision flowmeter designed for industrial process applications requiring reliable measurement of air and water flow. Part of the Series RSF, this flowmeter features unique rotatable scales with dual air-water direct reading graduations, allowing for quick and accurate readings in SCFM/SLPM for air and GPM/LPM for water. The borosilicate glass flowtube is protected by a rotating polycarbonate tube shield, which also serves as the scale carrier, enhancing durability and readability.
Key Features & Highlights
- Dual Direct Reading Scales: Rotatable polycarbonate tube shield with graduations for air (SCFM/SLPM) and water (GPM/LPM) simplifies flow measurement.
- Enhanced Readability: 1.5x magnification lens and reflective plastic background reduce eye fatigue and improve accuracy.
- Safety and Durability: Blow-out back panel provides additional protection in case of tube breakage.
- Easy Installation: Ships fully assembled with standard mounting hardware for vertical in-line or panel mounting.
- High Flow Capacity: Maximum flow rate of 20 SCFM (575 SLPM) for air and 4 GPM (15 LPM) for water.
Typical Applications
The RSF114 is suitable for a wide range of industrial applications including cooling systems, water treatment, chemical processing, and pneumatic systems. Its robust construction and clear readability make it ideal for monitoring flow in process lines, ensuring operational efficiency and safety.





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