Flow Meter
High-performance ultrasonic gas flowmeter for corrosive and high-humidity biogas applications
The Instrava Curated gas flowmeter is an advanced ultrasonic solution specifically designed for biogas flow measurement in harsh environments.
With innovative bypass ultrasonic measurement technology, it effectively solves common challenges such as sensor corrosion, moisture condensation, and CO₂ interference, ensuring stable accuracy and long-term reliability.
Unlike conventional gas flowmeters, this system isolates the sensing path from the main pipeline, enabling continuous operation, simplified maintenance, and improved signal quality.
Flow Meter Description
Why Choose This Ultrasonic Gas Flowmeter?
1. Innovative Bypass Measurement Technology
A portion of gas is diverted into a smaller channel for detection, improving signal stability
👉（bypass gas flowmeter / ultrasonic gas flowmeter for biogas）
2. Enhanced Signal Quality
Reduces CO₂ attenuation and improves measurement reliability
👉（high accuracy gas flowmeter）
3. Eliminates Flow Field Disturbance
Uniform flow distribution in bypass pipeline minimizes errors in large diameter pipes
👉（industrial gas flowmeter）
4. Anti-Condensation Design
Condensed water is discharged through bypass pipe, preventing sensor contamination
👉（gas flowmeter for high humidity gas）
5. Superior Corrosion Resistance
Designed for H₂S-rich environments, extending sensor lifespan
👉（gas flowmeter for corrosive gas）
6. Easy Maintenance without Shutdown
Independent measurement channel allows servicing without interrupting main pipeline
👉（low maintenance gas flowmeter）
Applications of Gas Flowmeter
This gas flowmeter for biogas and industrial gas measurement is widely used in:
👉（gas flowmeter for biogas plant）
👉（gas flowmeter for industrial gas measurement）
How the Bypass Ultrasonic Gas Flowmeter Works
The gas flowmeter utilizes ultrasonic sensing technology combined with a bypass measurement structure.
Built for EPC Contractors, Distributors & Energy Projects
This gas flowmeter is designed to meet the demands of industrial buyers:
Flow Meter Parameter
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN32–DN300 |
| Flow Range | 3–3200 m³/h |
| Measurement Principle | Ultrasonic (Bypass Type) |
| Accuracy | Class 1.5 |
| Pressure | 0–200 kPa |
| Temperature | -10 ~ 40°C |
| Humidity | ≤99% |
| CH₄ Measurement | 30–100% (±5% F.S.) |
| Output | RS485 / 4–20mA / DTU |
| Power Supply | Dual Battery (5 years operation) |
| Communication | GPRS (>2 years) |
| Protection | IP65 |
| Installation | Flange |
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.
Related Product Recommendations
What is a gas flowmeter for biogas and how is it different from standard gas flowmeters?
A gas flowmeter for biogas is specifically designed to measure gas flow in environments containing high humidity, corrosive gases (H₂S), and variable methane content.
Unlike standard gas flowmeters, a biogas gas flowmeter often includes:
Standard gas flowmeters may fail or lose accuracy in such harsh conditions, while specialized designs—such as ultrasonic gas flowmeters with bypass technology—maintain stable performance.
👉 This makes them essential for biogas plants, landfill gas systems, and wastewater treatment facilities.
Why is a bypass ultrasonic gas flowmeter better for high humidity and corrosive gases?
A bypass ultrasonic gas flowmeter for biogas improves measurement accuracy by diverting a small portion of gas into a controlled measurement channel.
This design solves three major problems:
In large pipelines, direct measurement often suffers from unstable flow profiles. The bypass structure ensures more uniform flow and higher signal quality.
👉 This is why bypass ultrasonic technology is considered one of the most reliable solutions for gas flow measurement in harsh industrial environments.
How accurate is a gas flowmeter in biogas applications with CO₂ and moisture present?
A high-quality gas flowmeter for biogas measurement can achieve ±1.5% accuracy, even in challenging conditions.
Accuracy depends on:
Advanced systems using ultrasonic gas flow measurement with bypass design reduce these interferences by stabilizing the measurement environment.
Additionally, integrating temperature and pressure compensation ensures accurate standard volume (Nm³/h) calculation.
👉 This level of accuracy is suitable for energy monitoring, subsidy calculation, and industrial process control.
Can a gas flowmeter measure both gas flow and methane (CH₄) concentration?
Yes, advanced gas flowmeters with methane concentration measurement can simultaneously measure:
This combination is especially important in biogas projects, where energy value depends on methane content rather than total gas volume.
Key benefits:
👉 A gas flowmeter with CH₄ measurement provides a more complete and reliable solution for biogas flow and energy measurement systems.
What industries require a gas flowmeter for biogas and industrial gas measurement?
A gas flowmeter for industrial gas measurement is widely used in industries where gas composition and flow must be accurately monitored.
In these applications, factors like corrosion, moisture, and unstable flow rates require specialized solutions such as ultrasonic gas flowmeters for biogas.
👉 Choosing the right flowmeter ensures process efficiency, regulatory compliance, and cost control.
How to choose the best gas flowmeter for biogas or natural gas applications?
To select the best gas flowmeter for biogas or natural gas, consider the following:
1. Gas composition
Biogas (CH₄ + CO₂ + H₂S) vs natural gas
2. Environmental conditions
Humidity, corrosion, temperature
3. Measurement requirements
Flow only vs flow + methane concentration
4. Pipe size and flow range
Match DN size and operating conditions
5. Technology type
Ultrasonic (recommended for low maintenance and harsh environments)
6. Output & communication
RS485, 4–20mA, GPRS for remote monitoring
👉 For biogas applications, a bypass ultrasonic gas flowmeter with CH₄ measurement and anti-corrosion design is often the most reliable choice.
Built on Consistency, Not Claims
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
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