Honeywell Elster TRZ2 G65~G1000 Gas Turbine Flowmeter for In Plant Trade and Transportation Measurement

Honeywell Elster TRZ2 Gas Turbine Flowmeter (DN50-150, for Custody Transfer Metering)‌

Application Scenarios

The TRZ2 gas turbine flowmeter is dedicated to high and low-pressure gas metering, delivering outstanding performance in custody transfer metering.

Brief Introduction

Honeywell Elster TRZ2 gas turbine flowmeter is renowned for its long-term stability, offering high accuracy and reliability in gas flow measurement. Its unique measuring cartridge design drastically cuts maintenance downtime, allowing on-site cartridge replacement and flow range adjustment.

Working Principle

Gas flowing through the flowmeter drives the turbine blades to rotate, and the impeller’s revolution count is proportional to the gas volume passing through the meter. The specially designed flow straightener at the inlet accelerates airflow and eliminates potential flow turbulence, ensuring high-precision metering within the allowable error range even at low flow rates. The rotation of turbine blades is decelerated by the gear train, then transmitted via a magnetic coupling mechanism to an 8-digit mechanical counter housed in a pressure-free register.

Main Features

• ‌Model‌: G65-1000
• ‌Flow Range‌: 5-1600m³/h
• ‌Caliber‌: DN50-150 (2″-6″)
• ‌Pressure Rating‌: PN10,16,25,40,64,100 and ANSI150,300,600
• ‌Temperature Range‌: -20℃ ~ +70℃
• ‌Gas Turbine Flowmeter with Measuring Cartridge‌
• ‌Manual Oil Pump‌ (standard configuration for PN25-100 and ANSI30-600 turbine flowmeters)
• ‌Temperature Measuring Pocket‌ built into the meter body (optional)
• ‌High-Frequency Pulse Generator‌ (optional)
• ‌Applicable Media‌: Natural gas, petroleum gas, city gas, butane, air, nitrogen, etc.
• S1 Counter (standard configuration)
• ‌8-digit Mechanical Counter‌
• ‌Register can be rotated 350°‌
• ‌Protection Class IP67‌
• ‌Absolute-ENCODER S1 Counter‌ (optional) can be used as the main counter
• Pulse Generator
  • ‌Low-Frequency Pulse Generator‌: 2 units configured, used to transmit actual working condition flow in m³ to the volume corrector, maximum frequency 0.5Hz
  • ‌High-Frequency Pulse Generator‌ (optional): Provides higher pulse level or better resolution, two types available: A1S detects turbine blades, A1R detects reference holes on the turbine
• Absolute-ENCODER S1 Counter (optional)
  • Adopts photoelectric reading method, transmits readings to auxiliary equipment via electronic interface
  • Powered directly from the electronic interface of auxiliary equipment, no external power supply required
  • Can be installed on mechanically driven counters, certified by German PTB
  • Available interfaces: NAMUR, M-Bus and SCR

Technical Parameters

• ‌Accuracy‌: ±1% (0.2Q to Qmax), ±2% (-0.2Q to 0.2Q)
• ‌Media Temperature Range‌: -20℃ to +60℃ (standard), consult for other temperature ranges
• ‌Ambient Temperature Range‌: -20℃ to +70℃
• ‌Pressure Rating‌: PN10, 16, 25, 40, 64, 100 / ANSI 150, 300, 600
• ‌Installation Dimensions‌: Multiple sizes available, refer to the parameter sheet for details
• ‌Weight‌: Ranges from 10kg to 90kg depending on caliber and pressure rating
• ‌Pulse Value‌: Ranges from 0.1 imp/m³ to 28000 imp/m³ depending on the model

Materials & Standards

• ‌Housing Material‌: GGG-40 (ductile iron) or steel, meeting the highest safety standards and fire-resistant (HTB)
• ‌Compliance Standards‌: Manufactured in accordance with DIN EN ISO 9001:2000 and DIN EN ISO 14001, complying with EC directives 97/23/EC, 94/9/EC, 71/318/EC, etc.

Installation & Maintenance

• ‌Installation‌: When installing the flowmeter, the length of the inlet straight pipe section must meet the requirements to ensure optimized flow pattern
• ‌Maintenance‌: Equipped with a measuring cartridge, maintenance time is drastically reduced, enabling on-site cartridge replacement and flow range adjustment

The TRZ2 gas turbine flowmeter, characterized by high accuracy, high reliability and easy maintenance, is an ideal choice for custody transfer metering.