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| Volume Damper |
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| Construced of galvanized steel sheet 0.9 mm. thick , for frame , jambs and blades , high strength structure , blades can be adjusted manually from full open to full close in opposed pattern for high effictiveness in air volume control performance . Lockable crank arm for manually adjusting the blades , and scale plate for indicating the blade position settings , are also completely equipped , one type (VD). Applications for mounting to duct line , building sidewall or shaft for control volume of supplied , exhausted , fresh or pressurized air manually . |
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| Type - VD |
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| Partirl open |
Full Close |
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