pFlow F2 Clamp-On Ultrasonic Flowmeter for Efficient Cooling
Overview
The pFlow F2 Clamp-On Ultrasonic Flowmeter is an economical, compact instrument purpose-built for efficient cooling system monitoring where flow sensors with moving parts cannot be used. Its modular, integrated structure design mounts to the outside of small and mid-diameter pipes using just four screws, requiring no pipe cutting and no interruption to the cooling process. The special insulating jacket reduces field installation hassle, and typical installation takes under 30 seconds once the unit is positioned.
As the official authorized partner and exclusive regional representative for pFlow Gentos, Seven Star LLC proudly supplies the F2 to HVAC chilled water contractors, building automation integrators, and industrial cooling operators across the Sultanate of Oman, Muscat, and the wider GCC. With rich network functionality including WiFi and cloud data storage, the F2 gives facility engineers real-time visibility into cooling system performance from a PC or mobile device without dispatching staff to the plant room.
Measurement Principle
The pFlow F2 operates on the ultrasonic transit-time principle. Two sensors clamp onto the outside of the pipe, and each transmits an ultrasonic pulse through the pipe wall into the flowing liquid, then to the opposing sensor. The speed of the liquid accelerates a pulse traveling with the flow and decelerates one traveling against it, and the difference between these transit times is used to calculate the flow rate.
Because this method relies on transit-time differential rather than direct contact with the fluid, the F2 remains unaffected by pressure or temperature changes in the cooling loop and introduces zero mechanical wear or pressure drop. Gentos specifies the F2 for water media – chilled water, heating water, potable water and irrigation water – with an accuracy of ±2% and a repeatability of 0.40% across a flow velocity range of 0.03 to 5.0 m/s, a turndown that covers a typical chilled water branch from low-load overnight circulation through to design flow.
Engineering Design of the pFlow F2
The pFlow F2 is engineered as a compact, all-in-one clamp-on unit suitable for small pipe sizes from DN20 to DN80, covering carbon steel, stainless steel, PVC, and copper piping typically found in HVAC chilled water systems and building automation loops. The integrated structure design and special outer insulation jacket keep the installation footprint small, making the F2 well suited to narrow mechanical rooms and tight plant spaces.
Once activated, the F2 requires no ongoing maintenance and offers users a choice between wired and wireless output, so that flow data can be reviewed either through the meter’s own display or remotely via a mobile device. The unit’s PC/ABS enclosure carries an IP54 rating, and its rich network functions—spanning RS485, TTL, 4–20mA, and WiFi—connect directly into central control systems or Gentos iCloud for data storage and analysis.
Key Features
The pFlow F2 combines compact clamp-on sensing with flexible connectivity for efficient cooling applications. Core capabilities include:
- Clamp-on installation completed in as little as 30 seconds, with no pipe cutting or process shutdown required.
- Compact, integrated structure design suitable for narrow plant rooms and tight piping layouts.
- Compatible with pipe sizes from DN20 to DN80 across carbon steel, stainless steel, PVC, and copper.
- Multiple output options including RS485, TTL, 4–20mA, and native WiFi wireless connectivity.
- Gentos iCloud data storage and analysis management for remote monitoring on PC or mobile device.
- Maintenance-free operation once activated, reducing long-term ownership costs.
- PC/ABS enclosure rated IP54 for durability in typical mechanical room environments.
- Accuracy of ±2% with 0.40% repeatability across a 0.03 to 5.0 m/s flow velocity range on water media.
Industrial Applications
The compact size and flexible connectivity of the pFlow F2 make it a natural fit for HVAC chilled water systems, building automation, and efficient cooling applications across Oman’s commercial and industrial base. Farming irrigation systems, residential water supply networks, cleaning systems, and recirculating aquaculture systems (RAS) also benefit from the F2’s non-intrusive, low-maintenance measurement.
As the officially authorized partner for pFlow Gentos, Seven Star LLC distributes the F2 to commercial developments, hospitality properties, and industrial cooling operations throughout the Sohar and Salalah economic zones and the broader GCC region. The meter’s WiFi connectivity and cloud data storage allow facilities management teams to monitor efficient cooling performance across multiple sites without dispatching technicians for manual readings.
Operating Envelope and Cooling-Circuit Duty
Within the pFlow clamp-on range the pFlow F2 occupies the small-bore, cooling-circuit position. Where the larger F-series bodies are specified for process and distribution mains, the F2 is dimensioned for DN20 to DN80 branches – the chilled water risers, fan coil sub-mains, chiller evaporator and condenser legs, heat exchanger circuits and liquid-cooling loops where a plant room has no straight run to spare for an inline meter. Gentos rates the sensor for a medium temperature of 0 to 60 °C, which spans chilled water at a 6 °C supply through to low-temperature heating returns, and a working pressure of 1.6 MPa that covers standard PN16 building services pipework.
The electronics are rated for ambient operation from −20 to 85 °C at 0 to 99% RH non-condensing, though Gentos specifies that installation itself be carried out between −10 and 50 °C. Power is a 10 to 36 V dc supply drawing 500 mA, so the meter runs equally well from a 24 V dc BMS panel rail or a local 12 V source. Readings appear locally on a 128 × 128 OLED display with three touch keys, and the sensor connects on a Ø5 mm six-core cable supplied in a standard 2 m length. RS485 carries both the Fuji and Modbus protocols for direct integration into a building management system, while the on-board WiFi radio works across 2.412 to 2.484 GHz with a theoretical open-air range of 40 m – generally enough to reach a plant room access point without pulling new cable.
Technical Specifications
Full technical parameters for the pFlow F2 clamp-on ultrasonic flowmeter:
| Parameter | Specification |
|---|---|
| Model | pFlow F2 |
| Measurement Principle | Ultrasonic Transit-Time, Clamp-on |
| Compatible Pipe Sizes | DN20 to DN80 |
| Compatible Pipe Materials | Carbon Steel, Stainless Steel, PVC, Copper |
| Output Communication | RS485, TTL, 4–20mA, WiFi |
| Data Management | Gentos iCloud Data Storage and Analysis |
| Enclosure Rating | PC/ABS, IP54 |
| Installation Time | As fast as 30 seconds |
| Physical Architecture | Compact, Integrated Clamp-on Design |
| Accuracy | ±2% |
| Repeatability | 0.40% |
| Flow Velocity Range | 0.03 to 5.0 m/s |
| Measuring Medium | Water (chilled, heating, potable, irrigation) |
| Working Pressure | 1.6 MPa |
| Medium Temperature | 0 °C to 60 °C |
| Operating Temperature | −20 °C to 85 °C; installation −10 °C to 50 °C |
| Humidity | 0 to 99% RH, non-condensing |
| Power Supply | 10 to 36 V dc, 500 mA |
| Display | 128 × 128 OLED with three touch keys |
| RS485 Protocols | Fuji and Modbus |
| WiFi | 2.412 to 2.484 GHz, 40 m theoretical open-air range |
| Sensor Cable | Ø5 mm, 6-core, 2 m standard length |
Request a Quote for pFlow F2 Clamp-On Ultrasonic Flowmeter for Efficient Cooling
To submit a formal Request for Quote (RFQ), check regional warehouse stock availability, or download complete technical datasheets for the pFlow F2 Clamp-On Ultrasonic Flowmeter for Efficient Cooling, please contact the official instrumentation division at Seven Star LLC today. As the authorized partner for pFlow Gentos in Oman and the GCC, our engineers are ready to assist with rapid commercial sourcing and compact wireless flow metering integration.
Related Products
pFlow is a specialized global brand recognized for its high-precision ultrasonic flow measurement technology, particularly its advanced clamp-on sensing solutions. At Seven Star LLC, we provide pFlow’s non-intrusive flow meters designed for demanding industrial environments, such as specialized shrimp processing facilities. These systems allow for accurate monitoring of water and fluid consumption without the need for pipe cutting or process interruption. Built to withstand corrosive conditions and ensure high hygiene standards, pFlow products like the P117 and GFCL series are essential for optimizing resource management and operational efficiency across the food processing and water treatment sectors in Oman and the GCC.
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