Our Solution
No matter the application, plant safety is paramount and relies on the dependability of your instrumentation. Rosemount™ 8800 Quad Vortex Flow Meters with safety certification offer the ultimate redundant flow measurement. With four independent sensors and transmitters, our proprietary solution provides the utmost reliability to guard against spurious trips using a 2oo3 voting method.
The 8800 Quad Vortex Flow Meter offers world-class reliability with a gasket free, non-clog meter body that eliminates potential leak points, maximizing process availability without the need to shutdown for maintenance. Our unique design features isolated sensors that eliminate the need to break process in the uncommon case of sensor replacement.
Application
Chemical
• Steam Measurement: Increased reliability and safety for mass and energy balance, benchmark efficiencies, and improvements
• Steam Cracking Furnace: Increase furnace efficiency with accurate and reliable measurement of steam and ethane.
• Reformer: Increase uptime and prevent damaging/cracking of tubes and lost production by accurately maintaining proper steam flow to avoid damage/crack tubing and safety risks
Power
• Feedwater Flow: Increased reliability and safety for combined cycle power plants Refining
• Light Gas Oil Hydrotreating Units (GOHT): Utilizing feed strippers to remove dissolved O2 from storage feed tanks
• Delayed Coker Heater: Wide turndown range offers the flexibility for Spalling process of decoking of furnace tube walls Offshore Oil & Gas
• Critical Steam Measurement: Ideal in high corrosive atmospheres where safety is crucial
Flow Meter Accuracy
± 0.70% of mass flow rate in water using 8800 MultiVariable (MTA/MCA option)
± 2% of mass flow in steam using 8800 MultiVariable (MTA/MCA option)
± 1.3% of rate at 30 psia through 2,000 psia in steam using 8800 MultiVariable (MPA option)
± 1.2% of rate at 150 psia in steam using 8800 MultiVariable (MCA option)
± 1.3% of rate at 300 psia in steam using 8800 MultiVariable (MCA option)
± 1.6% of rate at 800 psia in steam using 8800 MultiVariable (MCA option)
± 2.5% of rate at 2,000 psia in steam using 8800 MultiVariable (MCA option)
± 0.65% of volumetric rate for liquids (uncompensated)
± 1% of volumetric rate for gas and steam (uncompensated)
Turndown
38:1
Output
4-20 mA with HART® 5 or 7
4-20 mA with HART® 5 or 7 and scalable pulse output
FOUNDATION fieldbus ITK6 with 2 Analog Input blocks, 1 Backup Link Active Scheduler function block, 1 Integrator function block, and 1 PID function block
Modbus RS-485 with device status and 4 variables
Wetted Material
Stainless Steel; 316 / 316L and CF3M
Nickel Alloy; C-22 and CW2M
High Temp Carbon Steel; A105 and WCB
Low Temp Carbon Steel; LF2 and LCC
Duplex; UNS S32760 and 6A
Consult factory for other wetted material
Flange Options
ANSI Class 150 to 1500
DIN PN 10 to PN 160
JIS 10K to 40K
Flanges are available in a variety of facings
Consult factory for additional flange ratings
Operating Temperatures
-330°F to 800°F (-200°C to 427°C)
Line Size
1/2″ – 12″ (15 – 300mm)
Features
- An isolated sensor allows for online replacement without breaking the process seal
- Increase plant availability, decrease maintenance costs, and eliminate potential leak points with a unique gasket-free meter body design
- The CriticalProcess valve (CPA option) provides an extra level of safety assurance by allowing users to verify secondary containment integrity
- Achieve vibration immunity with a mass balanced sensor and Adaptive Digital Signal Processing with visual filtering
- A standard internal signal generator included in every meter simplifies electronics verification
- All meters are calibrated and are given a unique calibration number
- IEC 61508 certified for use in safety instrumented systems up to SIL 3
- Detect liquid to gas phase change using Smart Fluid Diagnostics
