Gas Flowmeter for Biogas Measurement with Bypass Ultrasonic Technology
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.
- ✔ Accurate measurement in high H₂S and humidity environments
- ✔ Reduced maintenance without interrupting pipeline operation
- ✔ Improved signal quality with bypass measurement design
- ✔ Ideal for EPC projects, distributors, and biogas plants
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:
Biogas & Environmental Projects
- Livestock farms and agricultural biogas systems
- Food waste treatment plants
- Wastewater treatment facilities
- Landfill gas recovery systems
👉（gas flowmeter for biogas plant）
Industrial Applications
- Paper mills and chemical plants
- Pharmaceutical and fermentation industries
- Natural gas distribution systems
👉（gas flowmeter for industrial gas measurement）
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
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
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:
- Corrosion-resistant materials
- Moisture and condensation protection
- Methane (CH₄) concentration measurement
- Temperature and pressure compensation
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:
- Moisture & condensation → water is drained through the bypass line
- CO₂ signal attenuation → shorter path improves ultrasonic signal strength
- H₂S corrosion → cleaner gas reaches the sensor
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:
- Gas composition (CH₄ / CO₂ ratio)
- Moisture levels and condensation
- Flow stability and pipe size
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:
- Gas flow rate (m³/h or Nm³/h)
- Methane (CH₄) concentration (%)
- Total accumulated flow
This combination is especially important in biogas projects, where energy value depends on methane content rather than total gas volume.
Key benefits:
- Prevents manipulation (e.g., adding air to increase flow readings)
- Ensures accurate subsidy and billing calculations
- Improves energy efficiency monitoring
👉 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.
📌 Biogas-related industries
- Livestock farms and agricultural biogas plants
- Landfill gas recovery systems
- Wastewater treatment plants
📌 Industrial sectors
- Chemical and pharmaceutical plants
- Paper mills and fermentation industries
- Natural gas distribution systems
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.
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