HQ980 series thermal mass flow meter are introduce into America tech and research our Patent (patent No.: 98224228.X). and get the certification of explosion-proof (No.: GYB98463). Our product also pass country standard (JJG879-95). HQ980 flow meter direct mass flow measurement without the need for pressure or temperature correction and it become the most popular flow meter from all over the world.
type
HQ981in-line thermal mass flow meter
HQ983 insertion thermal mass flow meter
medium
gas（except for acetylene）
accuracy
±0.5%,±1%
application
Iron, steel, chemicals, petroleum, metallurgy, paper, food, urban drainage and other industries
diameter
D25mm—300mm
D40mm—2000mm
flow velocity
0.1—60m/s，if flow velocity>60m/s, choose bigger transmitter
range of pressure
