

Designed for Small Diameter Pipeline Flow Monitoring
In many industrial and commercial systems, flow measurement on small diameter pipelines presents unique challenges:
Limited installation space
No allowance for pipe cutting or process shutdown
Requirement for quick installation and minimal maintenance
Corrosive or humid operating environments
The integrated clamp-on ultrasonic flowmeter is specifically developed to address these scenarios, providing reliable flow monitoring for DN10–DN40 pipelines without disturbing the process.
Flow Meter Description
Ultrasonic Flowmeter Clamp On-Simple Installation, Stable Measurement, Zero Process Interruption
Unlike traditional inline flowmeters, this clamp-on ultrasonic flowmeter focuses on ease of deployment and operational safety:
Non-intrusive measurement – no pipe cutting, no welding, no production stoppage
Integrated compact design – small footprint, ideal for confined installations
No moving parts – no pressure loss and minimal maintenance
No electrical conductivity required – suitable for water and other non-conductive liquids
Installation can be completed by on-site personnel without specialized training, following installation videos or step-by-step diagrams.
Ultrasonic Water Flow Meter-Working Principle
The ultrasonic flowmeter clamp-on operates using the transit-time principle:
Ultrasonic signals are transmitted through the pipe wall and liquid
Signals travel with and against the flow direction
The difference in propagation time is proportional to the flow velocity
The instrument calculates volumetric flow based on pipe size and velocity
Since the sensors are mounted externally, the measurement is completely isolated from the process medium.
Flow Meter Parameter
| Item | Specification |
|---|---|
| Product type | Integrated clamp-on ultrasonic flowmeter |
| Model | UF 125 |
| Pipe size | DN10, DN15, DN20, DN25, DN32, DN40 |
| Pipe material | Metal, PVC, PP, PVDF rigid plastic |
| Measured liquid | Water and other single-phase liquids (no solids or impurities) |
| Temperature range (process) | 0 to 75 °C (no surface freezing) |
| Low velocity cutoff | 0.1 m/s (factory default) |
| Measurement accuracy | ±2% (±1% after calibration) |
| Response time | 0.5 to 60 s |
| Display | 256 × 128 LCD |
| Output signal | 4–20 mA |
| Communication | Modbus RS485 |
| Optional outputs | Pulse (OCT), relay alarm |
| Power supply | 20–28 VDC |
| Power consumption | < 1 W |
| Data storage interval | 300 ms |
| Memory backup | EEPROM, >10 years data retention |
| Enclosure protection | IP65 |
| Ambient temperature | −10 to +60 °C (no freezing) |
| Relative humidity | 35–85% RH (non-condensing) |
| Vibration resistance | 10–55 Hz, double amplitude 1.5 mm |
| Shock resistance | 100 m/s², 16 ms pulse |
| Main materials | Aluminum, industrial plastics |
| Cable length | 2 m standard (PT1000 sensor cable: 9 m) |
Instrava OEM/ODM
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.
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.
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.
Is this clamp-on ultrasonic flowmeter suitable for very small pipes?
Yes. It is specifically designed for DN10 to DN40 pipelines where inline meters are difficult to install.
Does the liquid need to be electrically conductive?
No. The ultrasonic measurement principle does not require electrical conductivity.
Will installation affect the existing process?
No. Installation is external and does not require pipe cutting or production shutdown.
Can it be used in corrosive environments?
Yes. The PP glass fiber enclosure provides strong resistance to acidic and alkaline conditions.
Is professional training required for installation?
No. Installation can be completed by general maintenance personnel using provided guides or videos.
Does the meter cause pressure loss?
No. There are no moving parts and no obstruction inside the pipe.
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
Submit your manufacturing requirements, and our team will get back to you with professional solutions within 24 hours.