... meter; Lower pressure loss; For extreme condition and corrosive medium. HF25 series metal tube float flowmeter can measure liquid, gas or ... reliability. Unique exterior design is benefit for explosion proof performance. HF25 adopts magnetic detecting sensor and chip process technology and LED ... °C) air: 0.7~1800m³/h(0.1013Mpa, 20°C HF25 metal tube flow meter