LWQ Gas Turbine Flow Meter
LWQ Gas Turbine Flow Meter
The LWQ Gas Turbine Flow Meter integrates temperature, pressure, flow sensing, and intelligent totalization into one unit, suitable for high-precision metering of natural gas, coal gas, liquefied gas, hydrocarbon gas, etc., with wide rangeability, low pressure loss, and low starting flow.
- Integrates temperature, pressure, and flow, with automatic tracking compensation to display standard volume
- Wide rangeability ≥20:1, accuracy up to 1.0 grade, starting flow as low as 0.6 m³/h
- Built-in pressure and temperature sensors, compact structure, high safety
- Explosion-proof ExdIIBT4 / ExiaIICT4, protection IP65
- Low power consumption, 3.6V lithium battery can be used continuously for more than 1 year
- Meter head can be rotated 350° for easy on-site reading
Overview
Product Overview
The gas turbine flow meter integrates fluid mechanics and electromagnetic theory, combining temperature, pressure, and flow sensors with an intelligent totalizer. It offers excellent low-pressure and high-pressure metering performance, multiple signal outputs, and low sensitivity to flow disturbances, widely used for metering natural gas, coal gas, liquefied gas, hydrocarbon gas, etc. The product is manufactured and verified according to JJG 1037, GB/T 21391, and other standards.
Measurement Principle
The gas drives the turbine to rotate, and its rotational speed is proportional to the average flow velocity in the pipe. The detection coil senses pulse signals with the same frequency as the blade rotation. After totalization and automatic compensation combined with temperature and pressure measurements, the accumulated volume under standard conditions is displayed.
Structure and Performance
Using high-quality aluminum alloy turbine and imported dedicated bearings, the metering chamber is isolated from the gas passage. The core is integrated for durability and reliability.
Specifications
| Applicable Medium | Natural gas, coal gas, liquefied gas, hydrocarbon gas, etc. |
| Nominal Diameter | DN50–DN300 |
| Accuracy Class | Class 1.5 (high accuracy Class 1.0) |
| Rangeability | ≥20:1 |
| Repeatability | 0.05%R~0.2%R |
| Starting Flow Rate | As low as 0.6 m³/h |
| Explosion-proof Classification | ExdIIBT4 / ExiaIICT4 |
| Protection Level | IP65 |
| Power Supply | 3.6V 10AH lithium battery / external power supply |
| Output Signal | Pulse / 4–20mA / RS485 |
| Applicable Standards | JJG 1037, GB/T 21391 |