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MWA Technology
MWA Technology Limited, Offices & Workshop,
2 Wharton Street Ind. Est., Birmingham, West Midlands, B7 5TR

+44 (0) 121 327 7771

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Rotary Gas Meters from MWA Technology

Rotary Gas Meters

A highly machined precision piece of equipment, the rotary gas meter is a more precise instrument that handles higher pressures than diaphragm meters.

These positive displacement meters are designed to measure gas, for custody transfer or technical measurement applications.

CGR-FX rotary gas meters range

CGR40 - CGR100
CGR-FX rotary gas meters range available at MWA Technology
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CGR-FX rotary gas meters range

CGR40 - CGR100
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The rotary gas meters are positive displacement meters, designed to measure quantity of gas, for custody transfer or technical measurement applications. The devices are mainly applied for gas flow ranges from 0.2 up to 650 m³/h, and the pressure range up to 20 bar.

  • Inline gas meters with wafer connections to suit PN16 flanges, ANSI 150 alternative
  • Fitted with low frequency pulse output as standard
  • Aluminium body, suitable for natural gas and LPG, -20°C to +60°C
  • Nominal rangeability 1:50, Meters read in cubic metres, index can be head rotated through 360°
MWA Code Size Connections Pulse Values Max pressure Min
m³/hr
Max
m³/hr
Weight
CGR40G16 1½” PN16 flanges Pulse output, 1 pulse = 0.01 m³/hr 20 bar 0.5 25.0 3.6kg
CGR40G26 1½” PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 0.8 40.0 3.6kg
CGR40G40 1½” PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 1.3 65.0 5.3kg
CGR50G16 2½” PN16 flanges Pulse output, 1 pulse = 0.01 m³/hr 20 bar 0.5 25.0 5.3kg
CGR50G25 2″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 0.8 40.0 5.3kg
CGR50G40 2″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 1.3 65.0 5.3kg
CGR50G65 2″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 2.0 100.0 5.3kg
CGR80G100 3″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 3.0 160.0 7.4kg
CGR80G160 4″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 5.0 250.0 7.4kg
CGR100G100 4″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 3.0 250.0 7.4kg
CGR100G160 4″ PN16 flanges Pulse output, 1 pulse = 0.1 m³/hr 20 bar 5.0 250.0 11.6kg
CGR100G250 4″ PN16 flanges Pulse output, 1 pulse = 1 m³/hr 20 bar 8.0 400.0 11.6kg
CGR100G400 4″ PN16 flanges Pulse output, 1 pulse = 1 m³/hr 20 bar 13 650.0 11.6kg

CGR rotary gas meter ancillaries

Description
CGR calibration certificates
CGR 6-pin pulse plug
CGR 6-pin pulse plug and 2 metre lead
CGR high frequency pulse output – external
CGR high frequency pulse output – internal
CGR Remote 6-digit single LCD display Programmable installed in IP67 enclosure
CGR Chatterbox – e.Model unit, battery operated, 4 outputs, Atex IS.
CGR Chatterbox – e.Model unit, battery operated, 4 outputs, Atex IS. C/W enclosure
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Dresser Rotory Displacement Gas Meter

Dresser Rotory Displacement Gas Meter available at MWA Technology
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Dresser

Dresser Rotory Displacement Gas Meter

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The Dresser Meter is designed to measure the volume of gases and gas mixtures with a high degree of accuracy. The industry accepted rotary positive displacement operating principle ensures permanent, non-adjustable accuracy by using precision machined two-lobe impellers encased within a rigid measuring chamber.

Dresser Meters are recognized for highly accurate measurement from Qmin to Qmax. The meter’s rangeability, the ability to measure gas over a wide flow range within a specified accuracy, provides the best over-all measurement accuracy on a “day-after-day” basis, not just laboratory testing. Our meters are designed to provide accurate gas measurement over widely fluctuating flow, pressure, and temperature conditions.

Unlike other meter types, measurement accuracy is not affected by changes in specific gravity, pressure, or fluctuating flow. Dresser Meters may be used from a few ounces up to full capacity of the meter’s maximum pressure rating with highly accurate measurement over a wide operating range. This equates to a lower total cost.

Principle Features:

  • Full range of meter sizes from G16 through G1000
  • High Pressure meter sizes from G16 through G100
  • Permanent Metrological repeatability
  • Accuracy independent of gas specific gravity, line pressure, or fluctuating flow
  • Flange Classes ANSI #150 FF 2” to 8” or PN 16 FF in pipe sizes DN40 to DN200
  • Temperature range: -40°C to +70°C
  • Permanently lubricated, maintenance free gear reduction Accessory Units
  • Euro Counter: 355° rotateable index with LF Pulser, Optional HF pulser available upon request
  • Series 3 – numerous types available
  • MID Certified
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Dresser Series C Rotary Meter

Dresser Series C Rotary Meter available at MWA Technology
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Dresser

Dresser Series C Rotary Meter

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GE Energy’s innovative Dresser Series C Rotary Meter helps reduce installation and maintenance costs while improving measurement accuracy by utilizing advanced components and manufacturing technology.

Series C Design Features:

  • Compact size and lower weight
  • High performance rotor (impeller) profile for increased range ability
  • Superior strength ensures reduced sensitivity to pipe stress
  • Decreased susceptibility to damage from pressure shocks
  • Simplified maintenance and repair
  • Multi-functional index
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Elster RABO Rotary Gas Meter

RABODN32 - RABODN150
Elster RABO Rotary Gas Meter available at MWA Technology
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Elster

Elster RABO Rotary Gas Meter

RABODN32 - RABODN150
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The advantages of a Rotary Gas Meter over Diaphragm or Turbine Type:

  • Compact size
  • Low pressure drop
  • High accuracy
  • Ease of installations
  • No straight lengths of pipe required
  • Excellent Turndown
  • Immune to pulsating loads
  • No change of accuracy with increase in operating pressure

Design innovations for the new Elster RABO range:

  • Reduced overall dimension while enlarged volume of measuring chamber
  • Reduced pressure loss due to enlarged chamber volume
  • Robust Impeller design. Short Impeller shafts
  • Usage of permanent-lubricated ball bearings
  • Rotatable Index on Meter front, to allow vertical or horizontal installation
  • Several Index variants as i.e. S1 Index, ABSOLUTE-Encoder
  • Environmental friendly “Hard Coat“ Surface
  • Increased cyclic volume for reduced pressure drop
  • Lower piston speed for low-noise operation
  • Short housing depth for short wall spacing
  • Harmonization of the permitted temperature range to MID/PED/ATEX (-25 to 70°C)
  • Available in 32mm and 40mm sizes (G16 – G65)
MWA Code Description Body Length
RABODN32G16 Elster. DN32 Rotary Gas Meter Qmin 1.3 m³/h Qmax 25 m³/h PN16 171mm
RABODN32G25 Elster. DN32 Rotary Gas Meter Qmin 2 m³/h Qmax 40 m³/h PN16 171mm
RABODN32G40 Elster. DN32 Rotary Gas Meter Qmin 3 m³/h Qmax 65 m³/h PN16 171mm
RABODN32G65 Elster. DN32 Rotary Gas Meter Qmin 5 m³/h Qmax 100 m³/h PN16 171mm
RABODN40G16 Elster. DN40 Rotary Gas Meter Qmin 1.3 m³/h Qmax 25 m³/h PN16 171mm
RABODN40G25 Elster. DN40 Rotary Gas Meter Qmin 2 m³/h Qmax 40 m³/h PN16 171mm
RABODN40G40 Elster. DN40 Rotary Gas Meter Qmin 3 m³/h Qmax 65 m³/h PN16 171mm
RABODN40G65 Elster. DN40 Rotary Gas Meter Qmin 5 m³/h Qmax 100 m³/h PN16 171mm
RABODN50G16 Elster. DN50 Rotary Gas Meter Qmin 1.3 m³/h Qmax 25 m³/h PN16 171mm
RABODN50G25 Elster. DN50 Rotary Gas Meter Qmin 2 m³/h Qmax 40 m³/h PN16 171mm
RABODN50G40 Elster. DN50 Rotary Gas Meter Qmin 3 m³/h Qmax 65 m³/h PN16 171mm
RABODN50G65 Elster. DN50 Rotary Gas Meter Qmin 5 m³/h Qmax 100 m³/h PN16 171mm
RABODN50G100 Elster. DN50 Rotary Gas Meter Qmin 8 m³/h Qmax 160 m³/h PN16 171mm
RABODN80G100 Elster. DN80 Rotary Gas Meter Qmin 8 m³/h Qmax 160 m³/h PN16 171mm
RABODN80G160 Elster. DN80 Rotary Gas Meter Qmin 13 m³/h Qmax 250 m³/h PN16 241mm
RABODN80G250 Elster. DN80 Rotary Gas Meter Qmin 20 m³/h Qmax 400 m³/h PN16 241mm
RABODN100G160 Elster. DN100 Rotary Gas Meter Qmin 13 m³/h Qmax 250 m³/h PN16 241mm
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Itron Delta MRA Rotary Gas Meter

MRA
Itron Delta MRA Rotary Gas Meter available at MWA Technology
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Itron

Itron Delta MRA Rotary Gas Meter

MRA
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Commercial & Industrial Rotary Meter. Delta meters are volumetric meters. The flow of gas moves the pistons and each rotation traps and transfers a specific volume of gas. The movement is mechanically transmitted to the totaliser through the magnetic coupling.

Key Features

  • Flow rate: From 0.25 m3/h to 1000 m3/h, G10 to G650
  • Nominal Diameters: DN 25 to DN 150 (1” to 6”)
  • Maximum Working Pressure: Up to 100 bar depending on the body material and flanging
  • Body Materials: Aluminium, ductile iron or steel. Compliant with the Pressure Equipment Directive 97/23/EC
  • Temperature Ranges:
    • ATEX/PED: -30° C to +60° C
    • MID: -25° C to +55° C
    • Storage temperature: -40° C to +70° C
  • Metrology: In accordance with MID and OIML, large rangeability up to 1:200. Compliant with the Measuring Instrument Directive 04/22/EC
  • Intrinsic Safety Approval: L.C.I.E. 06 ATEX 6031 X – Compliant with the Directive 94/9/EC.

Technical Details

Model Number Flowrate Qmax m3 Flange size Description 1 pulse = m3
MRA25A 25 40 screwed Body length 121mm 0.01
MRA40A 40 40 screwed Body length 121mm 0.01
MRA65B 65 50mm Body length 171mm 0.1
MRA100B 100 50mm Body length 171mm 0.1
MRA160C 160 80mm Body length 171mm 0.1
MRA200C 200 80mm Body length 171mm 0.1
MRA250C 250 80mm Body length 241mm 1
MRA250D 250 100mm Body length 241mm 1
MRA300D 300 100mm Body length 241mm 1
MRA400D 400 100mm Body length 241mm 1
MRA450D 450 100mm Body length 241mm 1
MRA650SE 650 150mm Body length 450mm 1
MRA1000SE 1000 150mm Body length 450mm 1
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Rotary meter Delta QD

QD25 - QD60
Rotary meter Delta QD available at MWA Technology
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Itron

Rotary meter Delta QD

QD25 - QD60
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  • Delta QD volumetric meters
  • High accuracy and rangeability meter
  • Very low pressure loss
  • Protection class IP67
  • ATEX Directive 94/9/EC (Intrinsic safety level: II ½G Ex ia IIC T5 c T6)
  • Standard pulse output
MWA Code Size Connections Max pressure Min
m³/hr
Max
m³/hr
Weight
QD 25 40mm Screwed 16 bar 0.8 m³/hr 25.0 3.6kg
QD 60 40mm Screwed 16 bar 0.8 m³/hr 60.0 3.6kg
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