Products & services

    Products & Services

    Products & Services

    A unified portfolio across six specialist companies – covering every layer of precision gas measurement, plus the engineering, calibration and field services to keep it running.
    NMi certifiedMID approvedOIML R137ATEX / IECExH₂ ready
    Flow meters

    Ultrasonic, rotary and turbine technologies for every gas measurement task.

    Supplied by Transus Instruments · Flow Meter Group · Flocaltec
    Our flow meter portfolio covers the full operating envelope of the European gas grid. From the patented Transus LPM-zD ultrasonic meter – a true zero-D design that eliminates upstream and downstream straight-pipe requirements – to the FMG rotary range up to G65,000 and turbine meters up to DN400, we offer one of the broadest fiscal-grade meter ranges in Europe.
    NMiMIDOIML R137ATEX / IECExPTB
    Transus

    UIM ultrasonic gas meter

    Multi-path ultrasonic gas meter for fiscal custody transfer and high-pressure process duty – high accuracy, wide turndown and optionally retractable transducers for in-service maintenance.
    Natural gasCustody transferOIML R137AGA-9
    Transus

    LPM ultrasonic meter (LPM-zD)

    True zero-D ultrasonic meter for distribution networks using patented Broadband Continuous Wave technology – no upstream/downstream straight pipe required.
    DistributionZero-DLPM-zDOIML R137
    Flow Meter Group

    Rotary gas meters

    FMR series rotary meters for distribution, industrial measurement and H₂ blends.
    Natural gasH₂ readyMID
    Flow Meter Group

    Gas turbine meters

    Turbine flow meters for high-flow distribution and industrial gas measurement.
    Natural gasMID
    Transus

    Flare gas meters

    Highly accurate single or dual path ultrasonic flare gas meter using patented Broadband Continuous Wave technology for flare, vent, fuel, boil-off, process and biogas applications.
    FlareVentEmissionsATEX
    Metering systems

    Turnkey pre-fabricated skids - designed, built, tested and certified in-house.

    Supplied by GGS Oil & Gas Systems
    GGS designs and manufactures complete metering skids for natural gas, LNG/BOG and hydrogen applications. Each skid is engineered to client P&ID, fully wired, pressure-tested and witness-calibrated before leaving the workshop – minimising on-site work, commissioning risk and downtime.
    PEDATEXMIDOIML R137EN 1776
    GGS

    Custody transfer systems

    Turnkey pre-fabricated metering skids for fiscal gas measurement – designed, built, tested and certified before shipment.
    Natural gasLNG / BOGHydrogenATEX
    GGS

    Gas quality systems

    Quality, analyzer and sampling systems for gas and liquid metering – gas chromatographs, automatic sampling, density, dew point, H₂O and H₂S analyzers, integrated into conditioned analyzer shelters.
    Gas qualityAnalyzerSamplingGGS
    Calibration & testing

    Traceable, NMi-witnessed calibration - in the lab and on your site.

    Supplied by Flocaltec
    Flocaltec operates an independent calibration laboratory in Gendringen with ISO 17025 accreditation and direct NMi witnessing. Our portfolio of transfer master meters covers turbine, rotary and ultrasonic technologies and provides the reference chain needed for fiscal recertification of in-service meters.
    ISO 9001NMiOIML R137
    Flocaltec

    Transfer master meters

    Reference meters for traceable on-site and laboratory calibration.

    NMi
    Flocaltec

    Mobile calibration units

    Calibration rigs that travel to site for in-situ proving and recertification.

    Mobile
    Sampling systems

    Representative sampling for liquid, gas and LPG - engineered to ISO and API.

    Supplied by Mechatest and GGS Oil & Gas Systems
    Mechatest specialises in representative sampling systems for fiscal, custody-transfer and quality applications across oil, gas and chemicals. Every system is engineered around the actual process conditions – phase, viscosity, pressure, temperature and contaminants – to ensure the sample reaching the analyser or laboratory cylinder is unchanged from the bulk fluid.
    ISO 3171ISO 10715API MPMS Ch.8ATEX
    Mechatest

    Liquid & gas sampling systems

    Manual and automatic sampling systems for liquid hydrocarbons and process gases – from probe to analyser, designed to ISO 3171, ISO 10715 and API MPMS Ch. 8.
    LiquidGasCustody transfer
    Mechatest

    FPSO sampling systems

    Offshore sampling systems for FPSO, FSO and FLNG platforms – representative sample collection for crude oil, produced water and gas under marine conditions.
    OffshoreFPSOMarine
    Mechatest

    Automatic sampling systems

    Automatic sampling systems for continuous, representative grab and spot sampling of crude oil, refined products and chemicals into laboratory containers.
    AutomaticBottleOEM
    Mechatest

    Steam & water sampling (SWAS)

    Steam and water analysis systems for power and process plants – continuous sampling, conditioning and analysis of boiler feedwater, steam and condensate to ASME and VGB guidelines.
    SWASPowerWater
    Mechatest

    Sampling components

    Sampling components including spring-return handles for Swagelok, Hoke and Fitok valves, sample cylinders, fittings and panels for building and maintaining sampling systems.
    ComponentsValvesOEM
    GGS

    Analyser systems

    Analyser integration and conditioning systems for hydrogen measurement, oxygen measurement and SWAS applications – from sample conditioning to analyser shelter integration.
    HydrogenOxygenAnalyserGGS
    GGS

    Sampling probe systems

    Engineered probes for representative gas sampling at custody transfer stations.
    SamplingProbeGGSGIIGNL
    GGS

    ISO8943 Intermittent LNG sampling systems

    Intermittent sampling systems for LNG custody transfer and quality measurement, designed and built to ISO 8943 with integrated vaporization and conditioning for laboratory analysis.
    LNGISO 8943SamplingGGS
    Control panels and systems

    Custom-engineered electrical and instrumentation panels for oil & gas.

    Supplied by GGS
    GGS designs and manufactures custom control panels and systems for oil & gas applications – from simple local control stations to complex multi-panel assemblies with PLC, SCADA and safety system integration. Every panel is engineered to client specifications, fully wired, function-tested and certified before leaving our Kalmthout workshop.
    IEC 61439ATEXIECExCE
    GGS

    Control panels and systems

    Custom-engineered electrical and instrumentation control panels for oil & gas applications – from design and assembly to testing, certification and commissioning. Including flow computers, PLC and supervisory systems.
    Control panelsOil & gas
    Components

    Precision-machined gears, cartridges and OEM spares - micron tolerances.

    Supplied by GTA
    From its Someren workshop, GTA precision-machines oval gears, rotor cartridges and other moving components to micron tolerances. Every part is 100% inspected on dedicated coordinate-measuring machines and supplied with full material certificates.
    ISO 9001
    GTA

    (Non)toothed components and gears

    Precision-machined toothed and non-toothed components and gears to micron tolerances for rotary meters and OEM applications.
    OEMPrecision
    GTA

    Mono-parts, assemblies and subassemblies

    Single-piece machined parts, assemblies and subassemblies built to customer drawings with full material certification.
    OEMAssembly
    Software & electronics

    Flow computers, telemetry and SCADA integration to AGA, ISO and IEC.

    Supplied by GGS
    GGS delivers the full electronic stack: flow computers performing AGA3, AGA7, AGA8 and ISO 6976 calculations; secure communication gateways with Modbus, HART, OPC UA and IEC 60870; and integration into operator SCADA platforms with full data validation and audit trails.
    MIDNMiIEC 62443
    Ex-i Flow Measurement

    Ex-i Flow Measurement computers

    AGA3 / AGA7 / AGA8-compliant flow computers for fiscal calculation.

    AGA
    Omnicon Automation

    EnvisionSCADA

    Fully HTML5-enabled HMI / SCADA / IoT platform for rapid deployment and full white-label customisation – no programming required. Free development environment with scalable runtime licensing by tag count.
    SCADAHMIIoTHTML5

    Need a complete system, not just a meter?

    The complete gas measurement chain - six specialist companies covering precision components, flow meters, metering systems, and calibration.

    Group

    Onderzeel 6, 2920 Kalmthout, Belgium
    info@gmg-group.com
    +32(0)3 217 97 70
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