PRODUCT INFORMATION
This model is attached with split handle so volume can be flexiblely controlled. It can be classified into 2 models: VD -A and VD - B
- VD-A: normal type for low speed duct
- VD- B: for high speed duct, high pressure or when even air pattern is designed.
- When using fir & volume damper and worm gear damper, it can be replace with handle.