Specs at a glance
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Measured variables
Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*)
(*) additional function included with integrated volume correction -
Measuring Medium
Natural gas (dry, odorized), air
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Nominal pipe size
DN 50 (2") … DN 150 (6")
Field of application
State-of-the-art technology for maximum measurement accuracy: The FLOWSIC550 ultrasonic compact gas flowmeter ensures highly accurate billing of low volume flows in high-pressure networks – a perfect complement to the FLOWSIC500. It is overload-proof, accurate and is monitored by an intelligent diagnostics system. FLOWSIC550 can be easily integrated into existing measuring stations. When used in transfer and measuring stations, FLOWSIC550 ensures a continuous and blockage-free gas supply.
Gas Measurement of low volume applications at high pressures
Custody transfer: gas distribution, storage, and transmission systems
Town border stations and city gate stations
Device properties:
Diagnostics and permanent operational self-monitoring
Durable and reliable without moving parts
Compact meter installations
Integrated volume correction
Battery or intrinsically safe power supply
Bluetooth Low Energy (BLE)
Benefits
Ultimate measurement certainty and safety of continuous gas supply
Simple installation, replacement of turbine gas meters
Reduction of installation costs due to integrated volume correction
Easy Commissioning and data reading via FLOWgateTM (PC and App)
Minimal operating costs due to being nearly maintenance-free
Reliable even when the gas flow fluctuates (on/off applications)
Self-sufficient operation possible
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
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Most downloaded
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Operating Instruction (BA)
FLOWSIC550
English version - 01/2025
Ultrasonic Gas Flow Meter
EN 01/01/2025Language:
English
Version:
01/01/2025
File size:
4.1 MB
File name:
8029793_AE00_OI_FLOWSIC550_en_V1-1_2025-02_EHS.pdf
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Metrology
Product family: FLOWSIC, FLOWSIC550
English version - 04/2025
Product root: IFL550- Region: Europe Approval agency: PTB Approval number: DE-24-MI002-PTB001, Revision 2 Metrology type: Metrology
EN 10/04/2025Language:
English
Version:
10/04/2025
File size:
1.1 MB
File name:
E400868_02_AP_FLOWSIC550_ml_PTB_DE-24-MI002-PTB001_Rev02.pdf
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21 documents
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Operating Instruction (BA)
FLOWSIC550
Ultrasonic Gas Flow Meter
EN 01/01/2025Language:
English
Version:
01/01/2025
File size:
4.1 MB
File name:
8029793_AE00_OI_FLOWSIC550_en_V1-1_2025-02_EHS.pdf
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Short Instruction (KA)
CDUSB100
Connection device for commissioning and service
Language:
English
Version:
01/08/2025
File size:
1.6 MB
File name:
8029508_AE00_KA_CDUSB100_en_V1-2_2025.08_EHS_WEB.pdf
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Short Instruction (KA)
CDBT100
Connection device for commissioning and service
Language:
English
Version:
01/02/2025
File size:
1.5 MB
File name:
8029783_AE00_KA_CDBT100_en_V2-1_2025.02_EHS_WEB.pdf
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Short Instruction (KA)
FLOWgate – Quickstart
Installation of FLOWgate
Language:
English
Version:
01/03/2025
File size:
327.3 KB
File name:
8030460_AE00_KA_FLOWgate_Installation_en_V1-4_2025-03_EHS.pdf
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Competence Brochure (CP)
FLOWSIC流量メータと流量測定機器
精密な計量— 正確な請求とプロセス制御のために
Language:
Japanese
Version:
27/09/2025
File size:
20.3 MB
File name:
CP01584DJA_0225_Flow_meters_LowRes.pdf
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Competence Brochure (CP)
FLOWSIC – flow meters and instruments
Precise quantity measurement for accurate billing and process control
Language:
English
Version:
13/05/2025
File size:
3.1 MB
File name:
8030079_CP_Flow_meters_en_V2-0_2025.05_EHS_WEB.pdf
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Competence Brochure (CP)
MISURATORI E STRUMENTI PER LA PORTATA FLOWSIC
MISURATORI E STRUMENTI PER
LA PORTATA FLOWSIC
Misura precisa delle quantità –
fatturazione precisa e controllo di
processoLanguage:
Italian
Version:
27/05/2025
File size:
6.1 MB
File name:
CP01584D16IT_02.25-00.pdf
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Innovation (IN)
FLOWSIC550 – high pressure gas flow meter for natural gas distribution
The FLOWSIC550 ultrasonic compact gas meter ensures highly accurate metering for low volumes at high pressures in gas distribution.
Language:
English
Version:
07/04/2025
File size:
3.9 MB
File name:
8029942_IN_FLOWSIC550_en_V2-3_2025.03_EHS.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC550, FLOWSIC900
Product root: IFL550-, IFL900-
Region: Europe (ATEX)
Approval agency: CSA
Protection: Ex iLanguage:
English
Version:
27/08/2025
File size:
74 KB
File name:
9407805_00_AP_CDUSB100_en_ATEX_CSANe_24ATEX1171X_Rev00.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC550, FLOWSIC900
Product root: IFL550-, IFL900-
Region: International (IECEx)
Approval agency: CSA
Protection: Ex iLanguage:
English
Version:
27/08/2025
File size:
843.9 KB
File name:
9407802_00_AP_CDUSB100_en_CSA_IECEx_CSAE_24.0043X_Rev00.pdf
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