HeliflutM TZN

Features

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

Overview

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

• The HELIFLU™ TZN Flowmeters meet International Measurement Standards.
• The HELIFLUTM TZN Flowmeters meet API and OIML Recommendations for Custody Transfer Applications.
• The HELIFLU™ TZN Flowmeter rangeability is higher than 10:1.
• The HELIFLUTM TZN Flowmeters cover a wide range of viscosities from 0.1 to more than 600 cSt.
• The HELIFLUTM TZN Flowmeters are calibrated on in-house internationally recognized benches on real hydrocarbons

Specifications

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