pFlow D348D Plus Multipath Ultrasonic Flowmeter

Overview

The pFlow D348D Plus Multipath Ultrasonic Flowmeter is a state-of-the-art transit-time flow measurement instrument built on ARM COMA technology and low-voltage broadband pulse transmission. Designed to serve as a universal solution for demanding industrial flow measurement, the D348D Plus configures from 2 up to 6 acoustic sound channels, giving plant engineers redundant, high-reliability readings on large-diameter pipes where single-path meters struggle with turbulence and internal scaling. It is tolerant of liquids carrying small amounts of air bubbles or suspended solids, a common reality in industrial water, chemical, and cooling circuits.

As the official authorized partner and exclusive regional representative for pFlow Gentos, Seven Star LLC proudly supplies the D348D Plus to energy-saving audit programs, carbon assessment initiatives, and large-scale industrial metering projects across the Sultanate of Oman, Muscat, and the wider GCC region. Facility managers and energy auditors rely on this multipath instrument to deliver the non-contact, high-precision data needed to identify waste and support data-driven energy-efficiency decisions.

Measurement Principle

The pFlow D348D Plus operates on the ultrasonic transit-time principle, transmitting high-frequency acoustic pulses between transducer pairs mounted along the pipe. A pulse traveling with the direction of flow arrives faster than one traveling against it, and the meter’s internal microprocessor calculates the precise time differential between the two signals. Because this differential is directly proportional to fluid velocity, the instrument delivers volumetric flow readings accurate to ±0.5% of the measured value, with repeatability of 0.10%.

By operating multiple sound paths simultaneously across 2 to 6 channels, the D348D Plus compensates for velocity profile distortion caused by upstream disturbances, elbows, or partially filled large-diameter piping. Because the acoustic measurement involves zero moving parts, there is no mechanical wear, no pressure drop introduced into the line, and no risk of process contamination—critical advantages for continuous industrial operation and long-term energy audit accuracy.

Engineering Design of the pFlow D348D Plus

The pFlow D348D Plus transmitter is housed in a die-cast aluminum enclosure rated IP65, suitable for demanding plant-room and outdoor installation environments, while its encapsulated transducers carry an IP68 rating for long-term submerged or exposed duty. The unit is equipped with a 4.7-inch TFT color display and a 24-key tactile keypad, allowing field engineers to configure pipe parameters, sound-path count, and fluid characteristics directly on site without additional software.

Installation flexibility is a core design strength: the D348D Plus supports clamp-on and insertion mounting across pipe sizes from 1 inch to 200 inches (25mm to 5000mm), and standard transducer cable runs to 30 feet (9 meters) accommodate awkward plant layouts. A built-in TF card slot records up to 8 GB of logged flow data at intervals as tight as one second, giving auditors a complete historical dataset for later analysis.

Key Features

The pFlow D348D Plus combines multipath redundancy with rugged industrial construction. Core capabilities include:

• Configurable 2 to 6 acoustic sound channels for high-reliability measurement on large and irregular pipe diameters.
• Exceptional flow accuracy of ±0.5% of measured value with repeatability of 0.10%.
• Broad pipe size compatibility from 1″ to 200″ (25mm to 5000mm) across steel, aluminium, and PVC piping.
• Low-power ARM COMA processing chip with strong anti-jamming performance in electrically noisy plant environments.
• TF card data logging up to 8 GB, with recording intervals as fast as one second for detailed energy audits.
• Multiple output options including 4–20mA analog, pulse/OCV, relay, and RS-485 Modbus communication.
• Die-cast aluminum IP65 transmitter housing paired with IP68-rated encapsulated transducers.
• 4.7-inch TFT color display with a 24-key tactile keypad for straightforward on-site commissioning.

Industrial Applications

The multipath design and wide pipe-size range of this ultrasonic flowmeter make the pFlow D348D Plus a natural fit for energy-saving audits, carbon footprint assessments, and large-diameter process metering across Oman’s industrial base. District cooling plants, municipal water networks, and petrochemical facilities use the D348D Plus to capture continuous, non-intrusive flow data that feeds directly into energy-efficiency and carbon-trading reporting programs.

As the officially authorized partner for pFlow Gentos, Seven Star LLC distributes the D348D Plus to water and wastewater treatment plants, HVAC networks, and process industries throughout the Sohar and Salalah economic zones and the broader GCC. Because the instrument tolerates minor air entrainment and suspended solids, it performs reliably in real-world industrial water and chemical lines where laboratory-grade purity cannot be guaranteed, giving energy auditors confidence in the resulting data.

Technical Specifications

Full technical parameters for the pFlow D348D Plus multipath ultrasonic flowmeter:

Call To Action

To submit a formal Request for Quote (RFQ), check regional warehouse stock availability, or download complete technical datasheets for the pFlow D348D Plus Multipath Ultrasonic Flowmeter, 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 precision multipath flow metering for your energy-saving audit and industrial monitoring projects.