The HELIFLU™ TZN Flowmeter is designed for high accuracy measurement of liquids : from very light LPG
products to heavy crude oil. The advanced design and robust construction together with a wide range of available options enable the HELIFLUTM TZN Flowmeter to be used in the most severe environmental
& process conditions.
Key Technological Features
• Wide measurement range up to 15:1 turndown ratio,
• Low pressure drop & back pressure,
• Innovative design of helical profile,
• Simple, robust construction,
• Titanium rotor,
• Excellent resistance to corrosion, high pressures & temperature changes,
• Insensitivity to density changes,
• Low sensitivity to viscosity changes,
• Optional designs for low temperature and high wax / contaminants applications
Key Customer Advantages
• Custody transfer accuracy,
• High stability & reliability,
• Low energy consumption,
• Wide range of viscosities,
• Linearity suitable for multi-product measurement,
• Low cost of ownership, Simplified maintenance,
• Long service life : up to 100,000h MTBF,
• Use for dirty crude oil applications,
• Use for master metering calibration.
High Accuracy Flowmeters
Environment
•Ambient temperature range – -50 to +80°C (-58 to +176°F)
•Process temperature range – -50 to +180°C (-58 to +356°F)
•Storage temperature – -50 to +60°C (-58 to +140°F)
•Climatic protection – IP 66
Safety
•Ex ia version (with coil &/or preamp) – Compatible with installation in Zones 1 & 2 Group II G
•Ex d version (with coil &/or preamp) – Compatible with installation in Zones 1 & 2 Group II G
Mechanical
•Meter size – 0.5 to 20”
•Flange Rating – ANSI 150/300/600/900/1500/2500
•Meter body material – Carbon steel, stainless steel (other upon request)
•Flange material – Carbon steel, stainless steel
•Rotor material – Titanium or Aluminium
•Bearings material – Tungsten carbide or graphite
•Options – Body & flanges in low temperature carbon steel,
•Duplex stainless steel
•NORSOK compliant (on request)
Performances
•Accuracy – ± 0.15 %
•Repeatability – ± 0.02 %
•Max. flow rate – 0.6 to 6000 m3/h
•Viscosity range – 0.1 to 350 cSt (higher upon request)
Electrical options
•Pick-up coil – 1 or 2
•Pick-up coil + preamp. – Available
•Pick-up coil + remote preamp. – Available
•Local converter – Available
•Pick-up-coil + preamp. + pulse multiplier – Available
Approvals
•Electrical – ATEX (94/09/EC) compliant / IECEx (Ex d) certified
•Pressure – PED (97/23/EC) compliant
•Environment – EMC (2004/108/EC) compliant
•Metrology – OIML R117-1 / MID 2004/22/EC (class 0.3) and other national
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