The Dwyer Instruments SFI-300SS-2 is a high-quality sight flow indicator from the Series 100 and 300 family, engineered for dependable service in demanding industrial applications. This model features a 2-inch threaded connection, a 316 stainless steel body, and a double window design with a rotating impeller, providing clear visual confirmation of flow and flow rate. Built to rigorous safety standards, it offers long-lasting performance at an economical price.
Key Features & Highlights
- Double window design: Allows for easy viewing of the rotating impeller from multiple angles, ensuring clear flow indication.
- 316 stainless steel construction: Provides excellent corrosion resistance and durability for harsh process environments.
- Rotating impeller: Offers a visual indication of flow rate and movement, even in low-flow conditions.
- Threaded process connections: Simplifies installation into existing piping systems.
- Removable windows: Facilitate easy cleaning, inspection, and replacement of wearing parts, reducing downtime.
- Compact dimensions: Measures 5.500″ L x 3.688″ D x 4.063″ H (140 x 93 x 103 mm) and weighs 7.0 lb (3.2 kg), fitting into space-constrained installations.
Applications
Ideal for use in water treatment, chemical processing, HVAC, and other industrial systems where visual flow verification is essential. The SFI-300SS-2 is suitable for monitoring flow in pipelines, ensuring proper operation of pumps, and detecting flow interruptions.





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