nFrame: High quality Stainless Steel sheet (Grade 304/316L) of thickness 1.2mm depending on size
nFrame Size: 125mm depth and standard flange height of 25mm.
nBlades: Single skin ridge shaped blade constructed out of 1.2mm thick S.S sheet as standard.
nDrive Shaft: S.S square rod of size 12.7mm x 12.7mm.
nBushings: Self-lubricating S.S Ball bearing.
nBlade linkage: Nylon gear.
nBlade Stopper: S.S angle of thickness 0.7mm.
nHandle: S.S locking hand quadrant.
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Designed for offshore applications in heating, ventilating and air-conditioning systems.
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Can also be used in chemical industries and kitchen ventilation.
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Joints are welded and protected by chemical cleaning process.
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Blades are coupled by toothed nylon gears which provides opposed blade operation.
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Hand locking quadrant is provided with clear open/close indication and three intermediate open positions (1/4 – 1/2 – 3/4).
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Foam gasket is sealed across the blade edges to minimize air leakage between the blades.
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Flanged edges are supplied un-drilled as standard.
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Dampers without flanges available as option for duct insertion purpose.