The HUALIU LUXZ series smart precession vortex flowmeter is a new-generation gas flow instrument independently developed by HUALIU. It integrates flow, temperature and pressure detection in a single unit and automatically performs temperature, pressure and compressibility-factor compensation. The product is widely used for the metering of natural gas, air and general gases, making it an ideal instrument for gas metering in the petroleum, chemical, power and metallurgical industries.

The flow sensor adopts a Venturi-like flow profile with a set of helical guide vanes at the inlet side, forcing the fluid to generate an intense swirling flow. As the fluid enters the diffuser section, backflow induces a gyroscopic vortex precession phenomenon whose precession frequency is proportional to the flow rate and independent of the fluid's physical properties and density, thus achieving good linearity over a wide flow range. The detected signal is amplified, filtered and shaped into a pulse signal, which is fed together with the temperature and pressure signals into a microprocessor for integration, displaying the instantaneous flow, totalized flow, temperature, pressure and other parameters in real time on the display.

The flowmeter has no mechanical moving parts, offering stable and reliable operation, a long service life and maintenance-free long-term running. Dual-detection technology and intelligent anti-vibration technology effectively suppress interference caused by pipeline vibration and pressure fluctuation. The transmitter can output frequency pulse and 4-20mA analog signals and is equipped with RS-485 and HART interfaces for easy networking and remote transmission. The housing can be specified in aluminum alloy or stainless steel, and the display head rotates 360° for easy installation and use, powered by an external supply or a built-in lithium battery.