Rotameters are variable area flow measuring instruments widely used in laboratory and industrial applications for accurate and repeatable measurement of air, gas, and liquid flow rates. The flow rate is indicated by the vertical position of a freely moving float inside a tapered tube, ensuring direct and reliable visual indication.
The Industrial and Laboratory Rotameter offered by Spear Exim Pvt. Ltd. is designed for consistent performance, long service life, and ease of installation. These rotameters are suitable for low to medium flow measurement applications where precision and simplicity are essential.
Manufactured using high-quality acrylic or borosilicate glass tubes, combined with corrosion-resistant floats and end fittings, the rotameter ensures stable operation under defined pressure and temperature conditions. The instrument requires no external power, making it ideal for continuous monitoring in laboratories, pilot plants, and industrial process lines.
These rotameters are commonly used in chemical laboratories, oil & grease testing equipment, pharmaceutical processes, water treatment systems, and general process industries, where vertical mounting and reliable flow indication are required.
Key Features
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Suitable for air, gas, and liquid flow measurement
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Clear and easy-to-read scale
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Available in acrylic or glass tube construction
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No external power required
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Simple vertical installation
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Reliable and repeatable performance
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Suitable for laboratory and industrial environments
Typical Technical Specifications
(Exact ranges can be customized as per requirement)
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Measuring principle: Variable area
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Tube material: Acrylic / Borosilicate glass
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Float material: SS / PTFE / Glass Ball / PVC
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Mounting: Vertical
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End connections: Hose nipple / Threaded / Push Fittings / Flange
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Accuracy: ±2% to ±4 of full scale
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Operating pressure & temperature: As per model
Applications
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Laboratory testing and research
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Oil & grease testing equipment
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Chemical and pharmaceutical processes
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Water and wastewater treatment
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Pilot plants and process control systems
