Teren AFMB Average Duct Flow Measurement Blade

The AFMB Average Flow Measurement Blade provides an easy and low-cost solution for measuring air velocity and volume in both square and circular ducts. Installed within the duct, it stably and accurately measures the total, static, and velocity pressure, utilizing the principle that the square root of the velocity pressure is proportional to air velocity.

This device is well-suited for various air conditioning systems, vacuum cleaning applications, and especially environments with high temperature, dusty air, or high flow rates. Common applications include laboratories, air circulation test equipment, smoke purification, and exhaust systems. The AFMB is designed for use with differential pressure (DPV) transmitters, similar meters, or gauges.

For installation accuracy, the AFMB features -10~30mm scale rulers at both ends, which aid in confirming correct insertion at the duct's midpoint. The integrated flange ensures reliable duct installation with good air tightness.

Specifications Parameter Value Length 100~3000mm, see models Velocity Range 3~100m/s (9~10000Pa) Accuracy< 3% (related with the install position, quantity of blades installed and the matched DP transmitter) Repeatability< 0.3% Operating Temperature Up to 85°C Max Pressure 1 bar (static pressure) Coefficient 0.82 Material Die cast aluminum, nickel-plated copper nozzle, PC flange Note Once installed, it is recommended to adjust the readout of the matched transmitter to the value of another precision air flow meter, to complete a calibration to improve the accuracy Models Model Length (mm) AFMB-100 100 mm AFMB-125 125 mm AFMB-160 160 mm AFMB-200 200 mm AFMB-250 250 mm AFMB-315 315 mm AFMB-400 400 mm AFMB-500 500 mm AFMB-630 630 mm AFMB-800 800 mm AFMB-1000 1000 mm AFMB-1500 1500 mm AFMB-2000 2000 mm AFMB-2500 2500 mm AFMB-3000 3000 mm Other lengths customized (100-3000mm)