LPG Gas Meter

The LPG Flow Meter is engineered to accurately measure the flow of liquid and gas LPG regardless of changes in operation conditions. The meter features stable and repeatable measurements, which make it perfect for continuous operation.

LPG Flow Meter utilizes the technology of electronic measurement for conversion of the flow signals into consumption measurements for monitoring and record-keeping purposes.

The instrument is applied in various custody transfers, storage, distribution, and inventories of the LPG, where an accurate flow meter is needed.

Its robust design allows using the meter in such industrial applications as blending stations, LPG fill stations, etc.

• Measures LPG mass flow directly without pressure or temperature compensation.
• Based on thermal mass flow technology for accurate gas flow measurement.
• No moving parts for low maintenance and long service life.
• Very low pressure drop across the pipeline.
• Suitable for both horizontal and vertical installation.
• Flameproof electrical enclosure certified by PESO for hazardous areas.
• Provides stable and repeatable measurement performance.
• Suitable for industrial LPG applications such as boilers, furnaces, kilns, food processing, textile, metal, glass, and ceramic industries.

• Media: LPG (Liquefied Petroleum Gas)
• Flow Range: 0 to 500 SM³/hr
• Operating Temperature: -40°C to 150°C
• Maximum Operating Pressure: 10 Bar
• Installation: Horizontal or Vertical
• Pressure Drop: Very Low (Water Column)

Entry of Fluid

The LPG gas passes through the pipe into the meter body from where it moves to the measuring part where it is forced towards the sensing device to measure the flow rate accurately.

Flow Sensing

Depending on the type of meter used, the flowing gas either turns the precision rotor turbine or moves past the sensing device which emits pulses in proportion to the flow rate.

Pulse Sensing

The pulses are sensed using a non-contact sensing device which transforms the mechanical movement or flow sensing pulses into pulses without interfering with the flow process.

Temperature or Pressure Compensation

In case of applications requiring temperature and pressure compensation, the transmitter measures the values together with the flow signal to ensure accurate flow measurements in different operating conditions.

Data Presentation and Output

The data from the transmitter is shown on the local indicator and transmitted through output options such as 4-20 mA, pulse output, and RS485 Modbus to PLC, DCS, or SCADA systems based on the specific model used. 

Size Configurations

• Nominal Sizing Span (DN): DN15, DN20, DN25, DN40, DN80, DN100, DN150

Material Options

• Flow Body Metallurgy: 304 Stainless Steel standard configuration (316 Stainless Steel available as an alternative option)
• Sensor Core Elements (MOC): Pure Platinum Winding completely encapsulated inside an SS 316 protective layer
• Main Electronic Housing: Rugged Die-cast Aluminum alloy casing

End Connections

• Process Fitting Adapters: BSP threaded ports, or flanged connection formats engineered to DIN & ANSI dimensional metrics
• Flange Structural Pressure Ratings: PN 16, PN 40, PN 100 (conforming to BS EN 1092-1 specifications) or ANSI 150 and ANSI 300 Raised Face (RF) standards

Operating Parameters & Limits

• Active Measurement Range: 0 to 500 SM³/HR of gas flow volume
• Thermal Operating Boundaries: -40°C up to 150°C
• Maximum Mechanical Design Pressure: 10 bar
• System Accuracy Baseline: ±3% total deviation profile
• System Repeatability Profile: ±0.5% based strictly on target reading values
• Fluid Pressure Loss Profile: Negligible pressure drop (measured in terms of water column metrics)

Output Signals & Electrical Communication

• Analog Interface Output: 4-20 mA current loop or 3.5-10 Volt signaling cassettes
• Digital Communication Architecture: RS 485 MODBUS serial interface protocols
• Enclosure Protection Certification: Explosion-proof / Flameproof architecture certified for Gas Groups IIA and IIB usage parameters

System Integration & Hardware Upgrades

• Indicating Modules: Field-mounted local flow rate indicator matched with a running totalizer screen
• Printing Accessories: Direct connection link to an offline thermal or dot-matrix printer unit
• Remote Logging Modules: Integrated GSM cellular modem module alongside a dedicated internal data logger with matching PC system software

Flow Measurement Precision: The LPG Flow Meter is intended to ensure flow measurement precision and repeatability and to be used for custody transfers, inventory management, and process control operations.

High Reliability: Explosion-proof versions of the meter are available for use in hazardous environments and are capable of reliable operation at different pressures and other operating parameters.

Facilitates Monitoring Processes: The meter ensures consistent measurement of flow at a broad range of operating temperatures, thus enhancing the control over LPG distribution and storage facilities.

Ease of System Integration: The meter can have the following outputs available: pulse, 4–20 mA, and RS485 Modbus, facilitating its integration into PLC, DCS, and SCADA systems.