purpose

Applied to the ducts of fresh air systems, exhaust systems, variable air volume air conditioning systems, and purification air conditioning systems, the air volume is kept constant within a certain precision range.

function

·Wind direction adjustment: Automatic mechanical mechanism, no external power required.

·Working temperature: 10-15 ℃.

·Pressure difference: range 50-10Pa.

·Installation method: Horizontal or vertical installation.

·High precision flow regulation, flow range 4:1

·There is an external pointer displaying the flow scale, with a scale error of ± 4%.