Description
High-pressure gas flow meter for natural gas distribution
The cutting-edge technology for natural gas measurement: The new FLOWSIC550 ultrasonic compact gas meter from Endress+Hauser ensures highly accurate metering for low volumes at high pressures in gas distribution - a perfect addition to FLOWSIC500. In the absence of mechanical moving parts, the FLOWSIC550 is a robust, fail-safe and low-maintenance device, allowing for a significant reduction in operating costs. It is overload-proof, accurate and is monitored by an intelligent diagnostics system.
FLOWSIC550 can easily be integrated into existing measuring stations. The FLOWSIC550 operates either in an energy self-sufficient configuration or in network operation. When utilized in transfer and measuring stations, FLOWSIC550 ensures a continuous and blockage-free gas supply.
Features
- Rugged and time-proven ultrasound technology
- 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 and 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
Specifications
Specifications
Brand
Certifications & Approvals
Hydrogen Compatibility %
Hydrogen Compatible up to 30%
Hydrogen Compatible up to 20% Measuring Range
- Volume Flow, a. c., 2": 88 to 7,062 cfh
- Volume Flow, a. c., 3": 226 to 17,660 cfh
Repeatability
- ≤ 0.1 %
Accuracy
- Accuracy Class 1; Maximum Allowed Error Limits
- Qmin up to 0.08 Qmax: ≤ ± 2 %
- 0.08 QmaxUup to Qmax: ≤ ± 1 %
Gas Temperature
- -40° to 158° F
Operating Pressure
- ANSI 300 (ASME B16.5): 72.5 to 705 psi(g) for 158° F; 72.5 to 740 psi(g) for -40° to 100° F
- ANSI 600 (ASME B16.5): 72.5 to 1,410 psi(g) for 158° F; 72.5 to 1,480 psi(g) for -406 to 100° F
Sealing Surface
- Raised Faced, Stock Finished
Ambient Temperature
- -40° to 158° F
Certifications & Approvals
- OIML R 137-1&2:2012
- AGA 9, 2022
- NEC/CEC (US/CA)
Enclosure Rating
- IP66
Digital Output
- 2x Pulse and Status (HF with fmax = 2 kHz, LF with fmax = 10 Hz)
- Modbus: 2x RS-485, External Powered
Bluethooth
- Bluetooth Low Energy 4.2 Adapter or Wired M12/USB Adapter
Material in Contact With Media
- Low Temperature Carbon Steel
Mounting
- Horizontal or Vertical Installation with 3D Straight Inlet and 2D Straight Outlet Piping
Electrical Connection
- Intrinsically Safe Supply 8-16 VDC, max. 50 mA
- Battery Powered (Life Time Over 5 Years)
Weight
- DN 50: 20 kg
- DN 80: 40 kg
Why Choose Endress+Hauser FLOWSIC550
Why Choose Endress+Hauser FLOWSIC550
Value Elements
- High-Pressure Ultrasonic Gas Measurement
- Designed for accurate low-volume natural gas measurement in high-pressure distribution networks.
- Ultrasonic technology uses sound pulses to measure gas flow without relying on mechanical movement inside the meter body.
- High Turndown Ratio for Variable Demand
- A high turndown ratio allows the FLOWSIC550 to measure a wider range of natural gas flow rates with one meter.
- This is valuable in Canadian gas distribution systems where seasonal heating demand can create large differences between winter and summer flow.
- Low-Maintenance Meter Design
- With no moving parts, the FLOWSIC550 reduces wear-related issues common with traditional turbine and mechanical gas meters.
- This supports lower operating costs and improved reliability at important natural gas measurement points.
- Compact Installation and Easy Integration
- The compact FLOWSIC550 design fits tight high-pressure meter stations and integrates well into existing gas measurement installations.
- It is a strong option for turbine meter replacement or station modernization projects.
- Integrated Volume Correction and Diagnostics
- Integrated volume correction can reduce the need for separate correction equipment and simplify natural gas meter station design.
- Built-in diagnostics and FLOWgate access make commissioning, data reading, and meter health checks easier for field and operations teams.
Comparison vs. Next Best Alternative (NBA)
- FLOWSIC550 vs. Traditional Turbine Gas Meters
- Unlike turbine gas meters, the FLOWSIC550 uses ultrasonic measurement to avoid wear-related accuracy loss and maintenance concerns.
- It also includes integrated volume correction, which can reduce external equipment requirements in the meter run.
- Stronger Fit for Compact High-Pressure Stations
- The FLOWSIC550 is well-suited for compact high-pressure natural gas installations where space is limited or existing turbine meters need modernization.
- Improved Visibility Into Meter Health
- Continuous self-monitoring gives operators better insight into meter condition and supports more informed maintenance decisions.
- Reliable Performance With Fluctuating Flow
- The FLOWSIC550 performs reliably in fluctuating or on/off natural gas flow conditions, making it a strong option where flow is not steady or predictable.
Where Do I Use This Product and Why?
- Canadian Natural Gas Distribution Systems
- Use the FLOWSIC550 where low-volume natural gas flow must be measured accurately at high pressure, especially where billing accuracy, reliability, and compact installation matter.
- Custody Transfer and City Gate Stations
- The FLOWSIC550 is well-suited for custody transfer points, town border stations, and city gate stations where accurate, accountable natural gas measurement is required.
- Remote or Space-Constrained Meter Stations
- Compact design and flexible power options make it practical for remote Canadian gas meter stations or installations where footprint and power availability are limited.
- Turbine Meter Replacement or Station Modernization
- Choose the FLOWSIC550 when upgrading turbine gas meter installations to a modern ultrasonic gas meter with less wear, easier data access, and reduced maintenance.
- Variable Seasonal Demand and Critical Distribution Points
- The FLOWSIC550 supports dependable gas measurement through seasonal demand changes, fluctuating flow, and critical distribution applications where continuous gas supply matters.