DRUM-TYPE GAS METERS
Modelo: Serie TG
RITTER Drum Gas Meters ? TG Series
The RITTER TG Series drum gas meters are high-precision volumetric instruments designed for accurate measurement of gas flow and total gas volume in laboratory, research, and industrial applications.
These meters operate according to the positive displacement principle, using a measuring drum rotating inside a packing liquid. As gas flows through the instrument, the drum fills and empties periodically, allowing extremely accurate determination of the gas volume.
RITTER drum gas meters are especially suitable for applications requiring direct volumetric gas measurement, independent of gas composition, temperature, or humidity.
The TG series offers a wide range of sizes and material configurations, enabling the instrument to be adapted to different flow ranges and chemically aggressive gases.
Key Benefits
High measurement accuracy: ?0.5% across the entire flow range
Calibration traceable to the German national primary standard (PTB)
Accurate measurement of all gases and gas mixtures
Suitable for corrosive and inert gases
Wide selection of measurement ranges
Real-time data acquisition option via pulse generator
Durable construction with chemically and mechanically resistant materials
Low maintenance (only the packing liquid level needs to be checked)
Typical Applications
Drum gas meters are widely used in:
Research laboratories
Industrial process control
Gas technology development
Measurement of gas consumption in experimental setups
Calibration of gas measuring instruments
Combustion testing
Chemical and petrochemical processes
Environmental and biogas applications
Measurement Principle
The instrument operates using a multi-chamber measuring drum rotating inside a packing liquid (usually water or low-viscosity oil).
During drum rotation:
Gas enters one chamber of the drum.
The chamber fills progressively while the drum rotates.
Once filled, the chamber empties at the outlet of the meter.
The process continues continuously with each chamber.
Each rotation corresponds to a defined gas volume, enabling direct and highly accurate measurement of total gas volume.
Advantages of Drum-Type Volumetric Gas Meters
Unlike other gas measurement methods that depend on secondary variables (velocity, calorific value, thermal conductivity, etc.), drum gas meters measure the actual gas volume directly.
This means:
Gas composition does not affect the measurement
Complex correction factors are not required
Temperature and humidity have minimal influence on accuracy
In addition, these meters do not require external power supply, unless optional accessories such as pulse generators or data acquisition systems are installed.
Advantages of RITTER Drum Gas Meters
High Resistance Materials for Corrosive Gases
RITTER drum gas meters are designed for corrosive gases using high-quality thermoplastics such as:
PVC
PP (polypropylene)
PVDF
Electrically conductive PE (PE-el)
This allows selection of configurations that are fully resistant to aggressive gases.
Homogeneous Welded Measuring Drum
Unlike many other meters, the RITTER measuring drum is manufactured using welding with the same material as the drum itself, eliminating weak points that could be attacked by corrosive gases.
This significantly increases the service life of the instrument.
Resistance to Packing Liquid Reactions
All drum gas meters contain a packing liquid. In some meters, chemical reactions between the gas and the liquid can produce corrosive compounds.
RITTER drum gas meters are designed to prevent this issue, ensuring longer durability and stable measurement performance.
Available Measurement Ranges
The TG series includes 8 different meter sizes, covering flow ranges from:
1 L/h up to 18,000 L/h
Available models include:
TG 0.5
TG 1
TG 3
TG 5
TG 10
TG 20
TG 25
TG 50
Available Materials
The meters can be configured with different materials depending on the chemical properties of the gas:
Housing Material Drum Material
Stainless Steel PVC grey
Stainless Steel PE-el
Stainless Steel PP grey
Stainless Steel PVDF
Transparent PVC PVC grey
PP grey PP grey
PVDF PVDF
PE-el PE-el
Standard Equipment
Multi-chamber measuring drum
Magnetic coupling between drum and counter
Mechanical totalizing counter (8 or 9 digits)
Large single-pointer dial
Supports for thermometer and manometer
Viton sealing
Leveling feet
Bubble level for installation alignment
Options and Accessories
Integrated Options
Adjustable 8-digit LCD display
Pulse generator (standard or Ex-proof version)
High-precision packing liquid level indicator
External Accessories
RIGAMO software
Temperature sensors for gas or packing liquid
Gas thermometers
Packing liquid thermometers
Pressure gauges for different pressure ranges
Pressure transmitters
Available Packing Liquids
Pioneer 4281
HCl solution 1.8% for gas mixtures with CO?
Silox packing liquid (for gas mixtures without CO?)
CalRiX packing liquid
Marca: Ritter
+54 9 11 6713-8305
