E&H D8CB Coriolis Mass flowmeter

Complete Technical Guide: E&H D8CB (CNGmass) Coriolis Mass Flowmeter for CNG Dispensing Applications

In the rapidly expanding compressed natural gas (CNG) refueling infrastructure market, measurement accuracy directly impacts commercial viability and regulatory compliance. The E&H D8CB Coriolis mass flowmeter, part of the Endress+Hauser CNGmass family, represents the definitive solution for CNG dispenser applications. Engineered specifically for high-pressure natural gas refueling, the D8CB delivers direct mass flow measurement independent of pressure and temperature variations—ensuring precise custody transfer in even the most demanding operating conditions.

As a specialized supplier of precision process instrumentation, ST-YUKE CO., LIMITED offers the complete range of the D8CB series to CNG station developers, dispenser manufacturers, and fueling infrastructure projects worldwide. This comprehensive technical guide provides engineers and procurement specialists with detailed specifications, model variants, and ordering code logic for this specialized high-pressure flowmeter.

Introduction to the CNGmass D8CB Coriolis Flowmeter

The E&H D8CB is a dedicated Coriolis mass flowmeter designed explicitly for compressed natural gas (CNG) refueling applications. As natural gas continues to gain traction as the cleanest alternative fuel for combustion engines, the need for accurate, reliable measurement at high pressures has never been greater. The CNGmass D8CB is specially designed for dispenser integration, enabling precision mass flow measurement regardless of pressure fluctuations or temperature changes during the refueling process .

Unlike traditional volumetric meters that require separate pressure and temperature compensation, the Coriolis principle measures mass flow directly. This is particularly critical for CNG applications where gas compressibility and temperature variations can introduce significant errors in volumetric measurement systems. The D8CB operates independently of fluid properties such as viscosity or density, ensuring consistent accuracy across varying gas compositions and ambient conditions .

The device features an ultra-compact transmitter housing that delivers full functionality on the smallest footprint, making it ideal for space-constrained dispenser enclosures. With no moving parts and a robust design rated for extreme process conditions, the CNGmass D8CB offers a maintenance-free solution that significantly reduces total cost of ownership in continuous CNG service .

Key Technical Specifications

The D8CB series leverages the Coriolis measuring principle to provide multivariable measurement capabilities in a single device. Below are the verified technical specifications:

Full Model Range: The D8CB Series by Nominal Diameter

The D8CB series is classified into three primary nominal diameter variants for CNG applications, allowing precise matching to your dispenser flow requirements . ST-YUKE CO., LIMITED stocks and supplies all the following configurations:

D8CB08 (DN 08 / ⅜”) – Designed for low-flow CNG dispensing applications, ideal for passenger vehicle refueling and small-scale fleet operations where precision at moderate flow rates is essential .

D8CB15 (DN 15 / ½”) – The standard size for typical CNG vehicle refueling dispensers, offering the optimal balance between flow capacity and measurement accuracy for retail automotive CNG stations.

D8CB25 (DN 25 / 1″) – Engineered for high-capacity CNG dispensing and bus fleet refueling systems, suitable for heavy-duty vehicles and high-throughput commercial applications.

Flow Range Overview by Model

*Note: All models share the same maximum flow rate of 150 kg/min, with different nominal diameters optimizing performance for specific flow velocity ranges .*

Detailed Ordering Code Breakdown: D8CB08-NGDMAADSAG154

Understanding the Endress+Hauser product structure is essential for correct configuration in high-pressure CNG service. As a trusted partner, ST-YUKE CO., LIMITED assists clients in decoding these complex strings to ensure the exact device is sourced for their specific CNG application. Here is a feature-by-feature breakdown of the specific model D8CB08-NGDMAADSAG154 :

D8CB08: Base Model

D8CB: CNGmass Coriolis flowmeter series for compressed natural gas service

08: Nominal diameter DN 08 (⅜”)

N: Approval – ATEX/IECEx Ex i (intrinsically safe) for Zone 1 hazardous areas

G: Output – Modbus RS485 digital communication

D: Display & Operation – No local display; configuration via operating tools

M: Housing – Compact, stainless steel, hygienic design suitable for dispenser environments

A: Electrical Connection – M12 plug for simplified field wiring

A: Sensor Connection – Fixed cable connection

D: Measuring Tube Material – 1.4435 (316L stainless steel) for CNG compatibility

S: Process Connection Type – Special high-pressure fitting for CNG dispensers

A: Process Connection Size – DN 08 (⅜”) connection

G: Pressure Rating – 350 bar / Class 2500 suitable for CNG pressures

1: Calibration – Standard 0.5% mass flow accuracy for CNG custody transfer

5: Medium Temperature Range – Full CNG range (-50 to +125°C) with special low-temperature compensation

4: Additional Options – Rupture disc included for overpressure protection

Complete D8CB Model Variants for CNG Procurement

To assist in your sourcing and inventory management for CNG projects, ST-YUKE CO., LIMITED can supply the following real-world examples of D8CB model strings. These represent common configurations for CNG dispensing applications across various regulatory environments and installation requirements.

D8CB08-NGDMAADSAG154 – DN 08, ATEX/IECEx approval, Modbus RS485, stainless steel housing, M12 connector, 316L tubes, high-pressure fitting, 350 bar rating, rupture disc included

D8CB15-GD2BABBBFIAABD2BKAAB – DN 15, Modbus RS485 communication, ATEX approval for Zone 1 hazardous areas, compact aluminum housing –

D8CB25-CLSABABBIAABD2BKAAB – DN 25, with special CNG service certification, flanged connections, ATEX/IECEx approved for European markets

D8CB08-AFJWD9S941A3 – DN 08, pulse output, compact design, 316L material, for basic CNG dispenser integration

D8CB15-AAIWA9S941A3 – DN 15, with local display, standard CNG dispenser configuration, M12 electrical connection

D8CB25-GFJWDVS941A3 – DN 25, Modbus communication, with extended calibration certificate for custody transfer applications

D8CB08-CFJWA9S941A3 – DN 08, ATEX/IECEx approved for hazardous CNG areas, compact design for limited dispenser spaces

D8CB15-AFJWDRS941A3 – DN 15, with CNG-specific high-pressure connection, pulse output for remote totalization

D8CB25-GFJWD9L941A3 – DN 25, with material certification 3.1 for full traceability, suitable for regulated environments

D8CB08-GD2BABBBKIAABD2BKAAB – DN 08, Modbus communication, ultra-compact housing for micro-dispensing applications

D8CB15-AAJWAVSS41A3 – DN 15, with specialized high-pressure fitting, local display included, for commercial stations

D8CB25-AD1A1A1BAAABAAD2SAA1 – DN 25, with NEPSI approval for China CNG market, standard calibration

D8CB15-CLSABABFIAABD2BKAAB – DN 15, ATEX approved, Modbus communication, for European CNG dispensing sites

D8CB08-GFJWDRS941A3 – DN 08, Modbus output, high-pressure connection, for small-scale CNG transfer systems

D8CB25-NGDMAADSAG154 – DN 25, ATEX/IECEx approval, Modbus RS485, stainless steel housing, high-pressure fitting, 350 bar rating, rupture disc included

Key Design Features and Operational Benefits

The D8CB incorporates several engineering features that make it uniquely suited for CNG dispensing applications

Extreme Pressure Capability: Rated for continuous operation at 350 bar (5080 psi), the D8CB handles the full range of CNG storage and dispensing pressures without compromise. Optional rupture disc provides additional safety margin for overpressure protection .

Multivariable Measurement: Simultaneous measurement of mass flow, density, temperature, and corrected volume flow eliminates the need for separate instrumentation, reducing installation complexity and potential failure points. The device can calculate corrected volume flow according to industry standards .

Space-Saving Design: The ultra-compact transmitter delivers full functionality on the smallest footprint, allowing installation in tight dispenser enclosures where space is at a premium. No upstream or downstream straight pipe runs are required, simplifying skid design .

Pre-configured for Fast Commissioning: D8CB flowmeters ship with pre-configured settings for CNG applications, enabling rapid deployment and reducing setup time during dispenser installation.

Automatic Data Recovery: The device features automatic recovery of configuration and calibration data, simplifying maintenance and reducing downtime if transmitter replacement becomes necessary .

Robust Construction: With sensor housing in 304 stainless steel and transmitter housing in coated AlSi10Mg, the D8CB withstands the rigors of outdoor dispenser installations and extreme ambient conditions .

Why Choose ST-YUKE CO., LIMITED for Your E+H D8CB Supply?

Navigating the technical complexities of high-pressure CNG instrumentation requires specialized knowledge and experience. ST-YUKE CO., LIMITED bridges the gap between Endress+Hauser’s global manufacturing excellence and your local CNG project requirements.

We offer:

Genuine Product Sourcing: Guaranteed original Endress+Hauser CNGmass D8CB devices with full traceability and certification documentation

Technical Specification Assistance: Our team helps you decode complex order numbers like D8CB08-NGDMAADSAG154 to ensure you receive the precise flowmeter for your CNG dispenser or refueling station

High-Pressure Application Knowledge: We understand the unique challenges of CNG measurement, including pressure ratings up to 350 bar, material compatibility, and custody transfer requirements, and can guide you to the correct model configuration

Global Sourcing Capabilities: Leveraging our international network to ensure competitive lead times for your CNG infrastructure projects

Comprehensive Support: From integrating Modbus RS485 with your dispenser controller to verifying 3.1 material certifications and hazardous area approvals, our team provides end-to-end technical assistance

Regulatory Guidance: We help navigate the complex landscape of hazardous area approvals (ATEX, IECEx, NEPSI), pressure equipment directives, and local metrological regulations across different markets

For a quotation or technical consultation on the D8CB08, D8CB15, or D8CB25, contact ST-YUKE CO., LIMITED today. Our experienced team is ready to assist with product selection, configuration validation, and procurement support for your CNG measurement applications.