Ultrasonic Flow Meters

An ultrasonic flow meter is a non-invasive device that measures flow using ultrasonic sound waves. Instead of physical components inside the fluid path, it uses sensors mounted externally or near the pipeline/open channel.

This makes ultrasonic flow meters ideal for applications where:

• The fluid must stay contamination-free
• Pipe cutting or welding is not allowed
• There is a need for temporary or permanent flow monitoring
• High accuracy is required without pressure loss

Working Principle of Ultrasonic Flow Meters

Ultrasonic flow meters typically work on two principles:

1) Transit-Time Principle

Two ultrasonic sensors send signals across the pipe.
The difference between upstream and downstream transit time determines flow velocity.
Accurate for clean liquids.

2) Doppler Principle

Measures frequency shift caused by particles or bubbles in the liquid.
Best for slurry, wastewater, and dirty fluids.

Saitechflow provides both transit-time and Doppler-type ultrasonic technology depending on application requirements.

Why Choose Saitechflow Ultrasonic Flow Meters?

Saitechflow ultrasonic flow meters stand out because of their advanced technology, rugged industrial designs, and long-term performance.

✔️ Non-Intrusive Flow Measurement

No pipe cutting, pressure drop, or leakage risk.

✔️ High Accuracy

Transit-time technology ensures ±1% or better.

✔️ Works on Various Pipe Materials

Suitable for:

• MS
• SS
• PVC
• HDPE
• CPVC
• GRP

✔️ Maintenance-Free

No moving parts → no wear & tear.

✔️ Strong Signal Processing

Even under difficult flow conditions.

✔️ Suitable for a Wide Range of Fluids

Clean water, industrial liquids, oils, chemicals, wastewater, and slurries.

✔️ Digital Communication

RS485 MODBUS, 4-20mA, data logging, and cloud integration.

Applications of Ultrasonic Flow Meters

Ultrasonic flow meters are used across many industries for monitoring and measurement of liquids.

Industries

• Water & Wastewater
• Chemical & Petrochemical
• Oil & Gas
• Food & Beverage
• Pharmaceutical
• HVAC & Building Management
• Energy & Utilities
• Steel & Mining
• Power Plants
• Agriculture & Irrigation

Typical Uses

• Pipeline flow monitoring
• Water distribution networks
• Chiller & HVAC systems
• Chemical dosing
• Fuel & oil monitoring
• Effluent treatment plants
• Slurry, sewage & wastewater monitoring
• Energy auditing (BTU measurement)
• Temporary flow testing at sites

Different Types of Ultrasonic Flow Meters by Saitechflow

Saitechflow offers a complete range of ultrasonic flow meters designed for various applications, installation types, and fluid conditions.

1) Portable Ultrasonic Flow Meter

Portable ultrasonic flow meters are handheld, battery-powered devices designed for temporary measurement and site surveys. They are widely used by engineers, contractors, and maintenance teams.

Key Features

• Completely portable
• Clamp-on sensors (no pipe cutting)
• Built-in rechargeable battery
• High accuracy transit-time measurement
• Suitable for large pipe size ranges
• Data logging capability
• LCD display with rate & total

Typical Applications

• Testing & commissioning
• Flow auditing
• Pump performance testing
• Cooling water system monitoring
• Temporary measurement in plants
• Calibration verification

2) Transit-Time Type Ultrasonic Flow Meter

Transit-time ultrasonic flow meters are designed for clean or low-viscosity liquids with minimum solids. They offer extremely accurate and stable readings.

Key Features

• High accuracy ±1% to ±0.5%
• Clamp-on, insertion, or inline sensors
• Suitable for a wide range of pipe materials
• Ideal for clean water, RO water, chemicals
• Digital communication options
• Available in portable, wall-mount & panel-mount versions

Applications

• RO water plants
• Chilled water monitoring
• Industrial process water
• Energy monitoring (BTU systems)
• Chemical and solvent pipelines

3) Open Channel Ultrasonic Flow Meter

Open channel meters are designed for canals, drains, rivers, and wastewater channels where flow is not enclosed in a pipe.

Working Concept

Ultrasonic sensors measure the level of water over:

• Weirs
• Flumes
• Open canals
• Troughs

Flow rate is calculated using the corresponding discharge formula.

Key Features

• Non-contact measurement
• Ideal for ETP/STP
• No mechanical parts
• High accuracy level detection
• Compatible with Parshall flumes & weirs
• IP65/IP68 sensor options

Applications

• Sewage flow monitoring
• Irrigation channels
• Wastewater treatment plants
• Industrial effluent discharge
• Environmental flow monitoring

4) Wall-Mount Ultrasonic Flow Meter

Wall-mount meters are permanent flow measurement solutions ideal for continuous process monitoring.

Key Features

• Robust industrial enclosure
• Permanent installation
• Suitable for large pipelines
• High accuracy with stable operation
• Multiple output options
• Works on clean water and chemicals

Applications

• Manufacturing plants
• Utility monitoring
• Cooling towers
• Pumping stations
• Chemical dosing
• Process water lines

5) Clamp-On Ultrasonic Flow Meter

Clamp-on ultrasonic meters are the most popular type because they provide zero intrusion, zero leakage risk, and very low installation time.

Key Features

• Non-invasive clamp-on sensors
• Easy installation (no cutting/welding)
• Works on all pipe materials
• Suitable for chilled water, potable water, chemicals
• High accuracy and stability
• Ideal for both temporary & permanent installation

Applications

• Building management systems (BMS)
• Energy metering (chiller lines)
• Water supply & distribution
• Chemical industries
• Pharmaceutical plants
• Cooling water lines

Technical Specifications (General Range)

(Varies by model)

• Pipe Size: DN15 to DN3000
• Fluid Type: Clean water, wastewater, chemicals, oils
• Measurement Principle: Transit-time / Doppler
• Accuracy: ±0.5% – ±1%
• Temperature Range: -20°C to 160°C
• Sensor Types: Clamp-on, insertion, inline
• Outputs: 4-20mA, Pulse, RS485 MODBUS
• Power: 24VDC / 230VAC / Battery (portable models)
• Display: LCD/LED with totalizer & rate

Benefits of Saitechflow Ultrasonic Flow Meters

✔️ No Pressure Drop

Since sensors are outside the pipe, flow remains unaffected.

✔️ Quick Installation

Clamp-on design reduces downtime significantly.

✔️ Long-Term Reliability

Zero contact with fluid → no corrosion or wear.

✔️ Suitable for all pipe sizes

From small process lines to large transmission pipelines.

✔️ Ideal for digital & smart monitoring

Supports industrial automation and SCADA systems.

✔️ Cost-Effective

Reduced installation cost compared to mechanical meters.

Why Saitechflow is the Best Ultrasonic Flow Meter Manufacturer in India

Saitechflow offers industry-leading ultrasonic flow meters trusted by process industries, water utilities, and engineering companies across India.

Our Strengths

• Experience in ultrasonic metering technology
• High-quality sensors & electronics
• Industrial-grade enclosures
• Accuracy-focused calibration
• Custom engineering per application
• Reliable support & service across India

Saitechflow meters offer world-class performance suited to Indian industrial conditions.

Choosing the Right Ultrasonic Flow Meter

The suitable meter depends on:

• Fluid type (clean/dirty)
• Pipe size
• Installation type (temporary/permanent)
• Accuracy requirement
• Application environment

Saitechflow’s engineering team helps customers select the correct model based on their process needs.

Conclusion

Saitechflow ultrasonic flow meters are the perfect solution for industries looking for advanced, non-intrusive, and highly accurate flow measurement. Whether it’s a Portable Ultrasonic Flow Meter, Transit-Time Type, Open Channel, Wall-Mount, or Clamp-On Ultrasonic Flow Meter, Saitechflow delivers top-quality products with excellent performance and long-term reliability.

As a trusted ultrasonic flow meter manufacturer & supplier in India, Saitechflow continues to support industries with innovative flow solutions and superior service