Brand: pFlow

pFlow F2 Clamp-On Ultrasonic Flowmeter for Efficient Cooling

Name: pFlow F2 Ultrasonic Flowmeter for Efficient Cooling
Brand: pFlow

Description

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 current availability and lead time, or request 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 commercial sourcing and compact wireless flow metering integration.

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About brand

Clamp-on ultrasonic flow measurement is what pFlow does. The sensors strap to the outside of the pipe and measure liquid flow by transit time, so the line is not cut and nothing touches the fluid. The brand comes from Gentos, an instrument maker focused on ultrasonic flowmeters, flow sensors and heat and cooling energy meters.

Seven Star LLC is the pFlow agency for Oman and the GCC, listing pFlow ultrasonic flowmeters in fixed, portable and LoRaWAN versions, BTU meters and LoRaWAN flow control valves.

pFlow flowmeter families

Most of the listed models are compact clamp-on sensors grouped by pipe size and duty. The GF family (GFCL, GFR, GF-S-CL, GF-SH-CL for hot water and GF-GH-CL for immersion cooling) and the MF micro flowmeters (MFR, MFCL) serve cooling and process loops on small and medium pipes. The MP series are plug-and-play flow sensors, including the MP801 and a LoRaWAN version. The D116-BTU is a wall-mounted ultrasonic BTU meter, the P116 a portable flowmeter for surveys, and the F8 a fixed meter used in aquaculture. Gentos also builds the F3 series clip-on flowmeters, including a panel-mount version. The VC200-R is a LoRaWAN ball valve that works as a flow switch.

Where pFlow meters are used

The manufacturer documents use in liquid cooling for data centers and semiconductor plants, chilled and hot water metering in central air conditioning, water supply networks and irrigation, aquaculture, and utility lines in petrochemical and power plants.

Ordering a pFlow ultrasonic flowmeter: what we need

Clamp-on meters are selected from pipe data. Send the pipe outside diameter, wall thickness and material, any liner, the liquid and its temperature, the expected flow span and the straight pipe length available. Add the output you need (4-20 mA, pulse, Modbus, LoRaWAN) and the supply voltage. For BTU meters include the supply and return temperature span.

FAQ

Questions about the pFlow F2 Clamp-On Ultrasonic Flowmeter for

Answers from our engineering team on installation, compatibility and integration.

01How quickly can the pFlow F2 be installed?

The F2 clamps onto the outside of the pipe using four screws and can be installed in as little as 30 seconds, with no pipe cutting and no interruption to the cooling process.

02What pipe sizes and materials does the F2 support?

The F2 is designed for pipe sizes from DN20 to DN80 and works across carbon steel, stainless steel, PVC, and copper piping commonly found in HVAC and cooling systems.

03Can the F2 be monitored remotely?

Yes. The F2 offers native WiFi connectivity and Gentos iCloud data storage, allowing flow data to be reviewed remotely from a PC or mobile device without visiting the installation point.

04Does the F2 need regular maintenance?

No. Once activated, the F2 is maintenance-free, and its clamp-on ultrasonic sensing introduces no moving parts, mechanical wear, or pressure drop into the piping system.

05Is Seven Star LLC an authorized representative for pFlow products?

Yes. Seven Star LLC is the officially authorized partner and exclusive regional representative for pFlow Gentos in Oman and the GCC, supplying genuine products with local technical support.