E+H Proline Promass X 300 Coriolis Mass Flowmeter

High-Capacity Coriolis Measurement for Large-Scale Industrial Flow Monitoring

When managing high-volume liquid and gas transfer in demanding onshore and offshore industrial applications, process control managers and measurement engineers require absolute precision, long-term stability, and continuous reliability. The Endress+Hauser Proline Promass X 300 Coriolis mass flowmeter (8X3B) represents the pinnacle of large-bore Coriolis flow measurement technology. Specifically designed to handle extreme flow rates up to 4,100 metric tons per hour (4,520 short tons per hour), the Promass X 300 solves the historical challenges associated with measuring massive fluid quantities through a single installation point. By replacing complex, high-maintenance multi-pipe meter runs with a single high-capacity instrument, industrial plant operators significantly reduce total cost of ownership, lower structural footprint requirements, and streamline pipeline maintenance schedules.

As a leading global distributor of premium industrial automation instruments and process control devices, we supply genuine Endress+Hauser Promass X 300 mass flowmeters to engineering procurement contractors (EPCs), system integrators, and industrial facility buyers across international markets. Whether your facility operates in oil and gas production, marine bunkering, heavy chemical manufacturing, or bulk custody transfer, the Promass X 300 delivers uncompromised accuracy and continuous process visibility.

Patented Four-Tube Sensor Design with Ultra-Low Pressure Drop

The foundation of the Promass X 300 flowmeter’s exceptional performance lies in its patented four-tube measuring system. Available in nominal pipe sizes ranging from DN 300 to DN 400 (12 inches to 16 inches), this four-tube architecture ensures optimal flow distribution across the sensor, enabling maximum throughput while keeping pressure drop across the pipeline remarkably low. Low pressure loss is a critical advantage for heavy oil loading, pipeline transport, and refinery operations, as it reduces overall pumping power consumption and prevents process fluid cavitations.

Constructed from premium corrosion-resistant 316/316L (1.4404/1.4435) stainless steel, the wetted parts and sensor housing are engineered to withstand aggressive chemical environments, high process pressures up to PN 100 / Class 600, and wide process temperature fluctuations from -50 °C to +180 °C (-58 °F to +356 °F). Furthermore, because the Coriolis measuring principle operates independently of physical fluid properties—such as fluid viscosity, density, or velocity profiles—the Promass X 300 requires zero straight inlet or outlet pipe runs. This space-saving feature allows project design engineers to install the flowmeter directly downstream of pipe bends, valves, or pumps, making it the ideal solution for space-constrained environments like FPSO vessels, offshore production platforms, and compact skid systems.

Multivariable Capability & Custody Transfer Accuracy

The Promass X 300 is a true multivariable mass flowmeter capable of simultaneously measuring mass flow, volume flow, fluid density, temperature, reference density, and concentration (such as API gravity tables or Brix values) from a single process connection. Rather than purchasing, installing, and calibrating multiple standalone sensors for flow, temperature, and density, plant engineers can rely on a single Promass X 300 device to provide a comprehensive dataset for batching, blending, and process diagnostics.

For custody transfer, fiscal metering, and high-value bulk liquid trading, precision is paramount. The Promass X 300 delivers standard mass flow measurement accuracy of ±0.10%, with an optional premium calibration accuracy reaching ±0.05% for liquid applications. Excellent density accuracy (±0.0005 g/cm³) ensures precise mass-to-volume conversions for crude oil, liquid hydrocarbons, liquified petroleum gas (LPG), and liquid chemicals. Certified with international metrological standards including MID MI-005 and PTB approvals, the Promass X 300 provides verifiable measurement traceability that satisfies regulatory requirements for international commercial transfers.

Smart 300 Transmitter Architecture & Digital Connectivity

Paired with the advanced Proline 300 compact dual-compartment transmitter housing, the Promass X 300 provides flexible integration into existing DCS, PLC, and industrial control networks. The transmitter housing is constructed from rugged aluminum with protective coating or stainless steel, engineered to meet IP66/IP67 (Type 4X) ingress protection and hazardous area explosion-proof certifications (ATEX, IECEx, cCSAus, NEPSI).

The device features an intuitive local display with a four-line backlit touch screen, allowing field personnel to configure parameters, view real-time process trends, and respond to diagnostic alarms without opening the housing cover in hazardous environments. For flexible digital connectivity, the Promass X 300 transmitter supports up to three configurable input/output (I/O) modules and compatible digital fieldbus protocols, including HART, WirelessHART, PROFIBUS DP/PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, EtherNet/IP, and Ethernet-APL. Wireless configuration via integrated WLAN connectivity enables technicians to perform remote setup and diagnostic checks conveniently using a smartphone, tablet, or field laptop.

Integrated Heartbeat Technology for Continuous Diagnostics

Unplanned downtime in high-capacity pipelines can cost operators thousands of dollars per hour. To safeguard process continuity, the Endress+Hauser Promass X 300 integrates Heartbeat Technology—a sophisticated digital diagnostic and self-monitoring system. Heartbeat Technology continuously monitors internal sensor health, electrode integrity, and signal electronics in real time without interrupting ongoing flow measurements.

Field verification can be performed on-demand or automated on a scheduled basis, generating ISO 9001-compliant audit documentation directly from the transmitter. By detecting process anomalies such as severe corrosion, sensor coating buildup, or entrained gas early, maintenance teams can transition from reactive troubleshooting to predictive maintenance strategies.

Your Trusted Global Distributor for Endress+Hauser Instrumentation

As an established industrial automation instrument distributor, we bridge the gap between world-class manufacturers and global project requirements. We offer fast quotation responses, comprehensive technical model selection support, competitive distributor pricing, and worldwide logistics services for the complete Endress+Hauser Proline Promass flowmeter lineup. Contact our technical sales team today to request a quote, verify model availability, or discuss your specific process flow application requirements.

Technical Specifications

• Measuring Principle: Coriolis mass flow measurement

• Sensor Architecture: Patented four-tube system with low pressure drop

• Nominal Diameter Range: DN 300 to 400 (12″ to 16″)

• Max. Mass Flow Measurement Error: Standard ±0.10% (liquid); Optional PremiumCal ±0.05% (liquid); ±0.25% (gas)

• Density Measurement Accuracy: ±0.0005 g/cm³

• Maximum Measuring Range: 0 to 4,100 t/h (0 to 4,520 tn. sh./h)

• Medium Temperature Range: -50 to +180 °C (-58 to +356 °F)

• Maximum Process Pressure: PN 100, Class 600

• Wetted Materials: Stainless steel 1.4404/316/316L; Sensor exterior 1.4435/316L

• Transmitter Housing Material: Coated AlSi10Mg aluminum or stainless steel 1.4409 (CF3M)

• Degree of Protection: IP66/IP67 (Type 4X enclosure)

• Display / Local Operation: 4-line backlit display with touch control and optional WLAN access

• Digital Communication: HART, WirelessHART, PROFIBUS DP/PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, EtherNet/IP, Ethernet-APL, OPC-UA

• Diagnostic Verification: Integrated Heartbeat Technology with ISO 9001 compliant verification

• Hazardous Area Certifications: ATEX, IECEx, cCSAus, NEPSI, INMETRO, EAC, UK Ex

Applications

• Oil & Gas Offshore Platforms & FPSO: High-capacity mass flow measurement for crude oil production, hydrocarbon separation, and offshore bunkering operations.

• Refineries & Petrochemical Terminals: Precise custody transfer, bulk liquid loading/unloading, and crude oil blending in large-diameter pipelines.

• Chemical Processing: Large-scale mass metering and inline density control for aggressive solvents, liquid chemicals, and industrial intermediates.

• Marine Bunkering & Fuel Transfer: High-accuracy mass flow measurement for heavy fuel oil (HFO), marine gas oil (MGO), and liquified petroleum gas (LPG).

• Industrial Utility & Gas Management: High-volume flow measurement for natural gas, industrial processing gases, and bulk liquid nitrogen or oxygen systems.

FAQ

Q1: Why is the four-tube sensor design advantageous for large flow rates? A: The four-tube design splits the incoming flow into four parallel paths, allowing extremely high flow capacity up to 4,100 t/h while keeping pressure loss across the sensor minimal compared to dual-tube designs.

Q2: Does the Promass X 300 require straight inlet or outlet pipe runs for installation? A: No, the Coriolis measuring principle operates independently of fluid flow profiles and turbulence, allowing installation directly after elbows, valves, or reducers without sacrificing measurement accuracy.

Q3: Can we order genuine Endress+Hauser Promass X 300 flowmeters through your company? A: Yes, as an international distributor of industrial automation instruments, we source 100% genuine Endress+Hauser products with fast price quotations, technical configuration assistance, and global shipment support.

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