Genesis Positive Displacement Meter

Manufacturing: Guidant Measurement, Smith Meter® brand

The Genesis Positive Displacement (PD) meter, available in 2" and 3" carbon steel models, is a single-case rotary vane meter. It was designed to meet the accuracy and reliability requirements of the custody transfer market. The equipment is ideal for applications such as blending biofuels and other refined products, including gasoline, diesel oil, ethanol, biodiesel, and jet fuel.

How it works

The Genesis meter is a rotary positive displacement meter that measures product flow and features an integrated electronic output. This allows for excellent linearity and repeatability across the entire measurement range, without the need for a separate pulse transmitter.

As the fluid passes through the meter, the rotor and vanes rotate around a fixed eccentric, causing the vanes to move alternately (reciprocal motion). This successive movement forms precisely sized "measurement chambers" between the two vanes, the rotor, the body, the bottom cover, and the top cover. A continuous series of these measurement chambers are generated as the rotor rotates. Neither the vanes nor the rotor come into contact with the stationary walls of the "measurement chamber."

applications

• Measurement in blends of biofuels and refined products.
• Applications with gasoline, ethanol, biodiesel and aviation kerosene.
• Custody transfers that require high accuracy and reliability.

Technical specifications

• Available models: 2" and 3" in carbon steel
• Connections: ASME 150 2" and 3" flanges and DIN PN16 and PN25 (DN 50 and DN 75)
• Maximum Working Pressure: 285 psig for ASME 150 flanges
• Operating temperature range: -29°C to 65°C
• Precision:
  • Repeatability +/- 0.01% and Linearity of +/- 0.075%, for the 15:1 range; 
  • Repeatability +/- 0.02% and Linearity of +/- 0.10%, for the 30:1 range;
• Flow rate range (turndown): Standard 15:1 linear performance, with 30:1 option, ideal for terminal mixing and low flow applications.

Advantages of the Genesis Meter

• High accuracy: ideal for custody applications, with pulse output that allows excellent linearity and repeatability, without the need for a separate pulse transmitter.

• Sealed design: eliminates the possibility of volatile organic compound (VOC) emissions and the maintenance requirements of gaskets and gear trains.

• Low wear: Horizontal shaft design with hybrid ceramic ball bearings and PEEK (polyetheretherketone) wear strips significantly reduces blade tip wear.

• Compact and easy to install: The in-line installation design is simple, without the need for special measuring runs.

• Versatile: The meter's accuracy applies to a variety of refined products, from ethanol to biodiesel, with viscosities up to 20 centistokes (cSt).

Certifications and compliance

• Electrical approvals for hazardous areas: INMETRO / UL Brazil, UL/CUL (USA) and Canada), IECEx, ATEX (European Union) 
• Metrological certifications: INMETRO/Dimel Ordinance No. 172, of August 9, 2023; NTEP (USA), Canadian NOA (Canada), OIML R117-1, MID (European Union), NMI (Australia)
• Safety and pressure standards: Pressure Equipment Directive (PED) of Europe and CRN (Canada)
• Electromagnetic compatibility (EMC): in accordance with the European Union EMC Directive 2014/30/EU and EN 61326-1

Contact

For more information about Genesis Positive Displacement Meters and other liquid measurement solutions, contact terminais@staging.fluxo.si.