Industrial Instrumentation | AMAC Group Saudi Arabia
Natural Gas Ultrasonic, Turbine & Metering Flowmeters
Industrial gas flowmeasurement requires clear separation of operational volumetric measurement, gas utility monitoring, allocation and regulated fiscal custody transfer. AMAC reviews gas ultrasonic, turbine and DP metering quotations alongside pressure/temperature correction, gas quality and flow computers for Saudi refinery, petrochemical and EPC customers.
Request Technical RFQEmail BOQ / Datasheets
Selecting a natural gas measuring technology
| Meter principle | Relevant scope | Key risk/selection |
|---|---|---|
| Inline gas ultrasonic two-path | Utility and process gas; certain models intended for non-custody duties | Gas condition, acoustics, flow profile, approvals |
| Multirun / multipath gas ultrasonic | High-performance transmission/custody measurement with approved model | Calibration and meter run design, diagnostics, wet-gas risk |
| Gas turbine | Clean dry natural gas with valid flow-rate and pressure ranges | Bearings, low flow, cleanliness and gas quality |
| Differential pressure (orifice/Annubar) | Engineered gas metering and measurement with compensation | Square-root calculation, primary device, impulse lines, pressure loss |
| Thermal mass | Compressed air, stable-mixture process gas or combustion air | Gas-specific calibration, moisture, non-fiscal duty unless approved |
| Coriolis mass | Selected gas process applications | Gas density, pressure loss, flow/line sizing and cost |
OEM model families for identification
KROHNE OPTISONIC 7300: two-path gas ultrasonic meter for natural and process gases; OEM describes non-custody-transfer natural gas applications. Emerson Rosemount 3414: multipath ultrasonic gas family for fiscal duty, with required flow calibration and project acceptance. Endress+Hauser Prosonic Flow G 300: multivariable natural/process-gas ultrasonic reference. These models have different certifications and design limits. Do not quote one as direct equivalent to another from DN alone.
Actual versus standard gas volume and energy
State whether the customer requires actual m³/h, standardized Sm³/h or normalized Nm³/h and define the reference pressure, reference temperature, gas compressibility and gas heating value if energy is needed. A flow computer may apply accepted AGA, ISO and other standards using pressure, temperature and gas composition. This can be a regulated metering system rather than a single instrument replacement.
Installation and commercial metrology
- Pipe DN/ID, pressure class, gas pressure/temperature, gas constituents and possible condensation/liquid carryover.
- Minimum/normal/max actual flow, operating viscosity and density, required uncertainty and rangeability.
- Available upstream/downstream straight run, flow conditioner, valves, turbulence and vibration.
- Meter run calibration, diagnostic interfaces, flow computer integration and approved calculation standards.
- Hazardous area, material selection, NACE and plant HSE/pressure code requirements.
- Fiscal/billing status, approved meter standards, proving/verification and FAT/SAT evidence.
Complete gas metering packages
Full scope may include ultrasonic/turbine meter, upstream meter run, instrumentation manifolds, pressure/temperature sensors, gas chromatograph or analyzer, flow computer, ESD interface, electrical cabling, control panel and commissioning. Compare thermal mass gas flowmeters only where application and gas stability justify the technology.
What to provide for quotation
- Gas composition, methane/CO2/H2S range, moisture and operating temperature
- Actual and normalized flow at defined P/T reference; project max/min pressure
- Pipe bore, flange, ANSI pressure rating and installation run
- Process utility or custody-transfer duty, applicable standards and calibration
- Flow computer, gas analysis, P/T compensation and integration scope
- OEM model/serial, number of meters and Saudi project site
Speak to AMAC Sales
Provide exact make/model and serial number for a replacement or instrument index, P&ID, datasheets, BOQ, project specification and approved-vendor requirements for new installations and E&I packages.
sales@amac-group.com · +966 53 217 2711 · RFQ contact form
OEM families are technical identification references, not claims of AMAC manufacturer authorization, stocked parts or guaranteed certification. Confirm model/approvals and delivery before procurement.
Related measurement and instrumentation
Thermal mass · Flow computers · Gas analyzers · All flow technologies