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Honeywell D2 and D3 Series Rectangular Volume Control Dampers

Rectangular Volume Control Dampers
D2 and D3 Series

D2 series is an ultra-low leakage control damper which includes blade and jamb seals. The D3 series is a general purpose damper intended for applications where low leakage performance is not necessary.







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Table 1Table 2Table 3Table 4Table 5Table 6Table 7Table 8Table 9
Table 1Product Type
D2D642 (Class II Leakage, 3 V blade with seals)
D3D640 (Class III Leakage, 3 V blade without seals)
Table 2Blade Action
Table 3Frame
A16 gauge galvanized frame with galvanized
Table 4Axle Bearings and Seals Materials
AAcetal Bearings /No Seal
BAcetal Bearings/Vinyl Seal
CBronze Bearings/No Seal
DBronze Bearings / Vinyl Seal
Table 5Width
(006-072)Standard Rectangular Damper Width
Table 6Height
(006-072)Standard Rectangular Damper Height
Table 7Sizing
NNominal Sizing
Table 8Flange
ANo flange
Table 9Actuator Mounting
AExternal LH Standard withoutjackshaft (may include jackshaft for larger sizes)
BInternal LH Standard without jackshaft (may include jackshaft for larger sizes)
CExternal RH Standard without jackshaft (may include jackshaft for lager sizes)
Size Range: Minimum Size: One Blade: 6 in. wide by 6 in. high
Two Blade: 6 in. wide by 10 in. high
Maximum Size: Single Section: 48 in. wide by 72 in. high
Multiple Section: unlimited
Temperature Rating: 180 F (82 C) maximum
Standard Construction: Blade: 16 gauge galvanized steel 3-V
Action: Parallel or Opposed
Frame: 16 gauge galvanized steel Hat-channel
Bearings: Synthetic (Acetal)
Linkage: Side linkage out of airstream (concealed in frame)
Axles: 1/2 in. square plated steel
Jamb Seals: Compression-type Stainless Steel
Blade Edge Seals: Extruded Vinyl

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