SKU: SENS-0586
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TT Electronics FNGVS321-ASS-C Flow Meter, 100mm Scale, ±1.25%, Range: 0.4-4.4 L/min, 1/4" BSPP Panel Mount

₹37,859.00 (Inclusive of all taxes)
Out of Stock

The TT Electronics FNGVS321-ASS-C is a precision glass variable area flowmeter with a 100mm scale, designed for accurate panel-mount monitoring of liquid flow rates from 0.4 to 4.4 L/min. It features a built-in needle valve for flow control and is compatible with water-based media via its 1/4″ BSPP process connection.

Features

  • High-precision ±1.25% FSD accuracy for reliable flow measurement.
  • 100mm high-visibility glass tube scale with stainless steel float for clear, instantaneous reading.
  • Integrated needle valve with rear connections for easy flow control and compact panel mounting.
  • Robust construction with stainless steel end blocks and Viton O-ring seals for industrial durability.
  • UV-stabilized safety cover with blow-out vent for enhanced operational safety.

Out of stock

Description

The FNGVS321-ASS-C flowmeter operates on the variable area (rotameter) principle, where the position of a float within a tapered glass tube indicates the flow rate. The durable glass tube and stainless steel float assembly provide a clear, low-friction path for the media, ensuring instantaneous response and stable readings. The unit is engineered for long-term reliability in industrial environments.

Designed for panel mounting, the flowmeter features a rear connection design that saves space and simplifies installation into control panels or instrumentation racks. The built-in needle valve allows for precise manual adjustment of the flow rate post-installation. The combination of stainless steel construction, Viton seals, and a protective safety cover ensures resistance to environmental factors and media compatibility with water-based liquids.

Key Features

  • Precision-engineered glass variable area flowmeter with ±1.25% FSD full-scale accuracy.
  • 100mm elongated scale for high-resolution, easy-to-read flow rate indication.
  • Durable borosilicate glass tube paired with a corrosion-resistant stainless steel float.
  • Integrated fine-adjustment needle valve enables precise flow control directly at the meter.
  • Stainless steel (303/304) end blocks with high-grade Viton O-ring seals ensure leak-free operation.
  • UV-stabilized polycarbonate safety cover provides impact protection and includes a safety blow-out vent.
  • Rear-facing 1/4" BSPP process connections facilitate clean, compact panel mounting installations.
  • Ergonomic design with clear scale markings and visible float rotation for immediate visual verification.

Applications

  • Precise monitoring and control of coolant flow in CNC machining centers and industrial chillers.
  • Flow rate verification and adjustment in chemical dosing systems and laboratory peristaltic pump setups.
  • Process water flow measurement in small-scale industrial water treatment and filtration skids.
  • Lubricant oil flow monitoring in hydraulic power units and centralized lubrication systems.
  • Bench-top flow calibration and educational demonstrations in fluid dynamics and instrumentation labs.

Technical Specifications

Manufacturer Part NumberFNGVS321-ASS-C
Model SeriesFNG Series
Flow Rate Range0.4 – 4.4 L/min
Accuracy±1.25% FSD (Full Scale Deflection)
Scale Length100 mm
Media TypeLiquid (Water, compatible water-based media)
Process Connection1/4" BSPP (British Standard Pipe Parallel)
Mounting TypePanel Mount
Float MaterialStainless Steel
Tube MaterialGlass
End Block MaterialStainless Steel
Seal MaterialViton O-rings
Safety CoverUV-Stabilized Polycarbonate
Unit Length150 mm
Unit Width60 mm
Unit Weight450 g

Frequently Asked Questions

What type of media is the FNGVS321-ASS-C flow meter compatible with?

This flowmeter is designed for use with water and other compatible water-based liquids. It is not suitable for aggressive chemicals, gases, or media that are incompatible with its stainless steel, glass, and Viton seal construction. Always verify media compatibility with the seal materials for your specific application.

How do I install and use the built-in needle valve?

The integrated needle valve is located at the rear of the unit. After connecting the meter to your system via the 1/4" BSPP ports, you can use the valve's adjustment knob to finely regulate the flow rate. Turning the knob adjusts the orifice opening, allowing you to set and maintain a precise flow as indicated on the 100mm scale.

What does the ±1.25% FSD accuracy specification mean?

The accuracy of ±1.25% FSD (Full Scale Deflection) means the maximum measurement error is 1.25% of the full-scale value (4.4 L/min). Therefore, at the maximum flow rate, the potential error is ±0.055 L/min. This high precision is typical of quality glass variable area flowmeters and ensures reliable process monitoring.

Is the flowmeter suitable for panel mounting?

Yes, the FNGVS321-ASS-C is specifically designed for panel mounting. Its rear-facing 1/4" BSPP connections and compact form factor allow it to be installed directly into a panel cutout. This provides a clean, integrated look and protects the meter body while keeping the scale easily visible to the operator.

Package Includes

  • 1 x TT Electronics FNGVS321-ASS-C Flow Meter

Additional Information

Weight 0.45 kg
Dimensions 15 × 6 cm

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