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Dampers and Components
Malco 28 Gauge Dampers feature 1/4 in. (6.4 mm) bearings allowing bearing holes to be made in
round duct with the use of a scratch awl. Squeeze pipe so that it is oval shaped. Insert damper into
pre-punched bearing hole(s). Pipe will spring back to round when released. Secure with wing nut(s)
provided. Damper may be adjusted with screwdriver or optional damper handle. Available with or
without handles.
See below.
D8HT100
D5100
D7HT100
D6HT100
D6100
• Fast installing hammer-on design.
• For use on 30-24 gauge (0.41-0.71 mm) galvanized steel.
• Standard 5/16 in. (8 mm) threads. / Packaged 12 sets per bag.
•
Note: Not for stove pipe:
Use only for air handling applications
where temperature does not exceed 350°F (176°C).
Single Bearing / Spring Loaded:
1-spring bearing / 1-inside washer /
1-handle / 1-wing nut
Double Bearing :
2-spring bearing / 1-inside washer /
1-handle / 1-wing nut
Double Bearing :
1-spring bearing / 1-fixed tip / 1-inside washer /
1-handle / 1-wing nut
Catalog
Pipe Diameter
Number
in. (mm)
Bearing
Standard Dampers, including Wingnuts
(Unassembled)
28 Gauge (0.48 mm) 100 packs
D5100
5 (127)
single
D6100
6 (152)
single
D6HT100
6 (152)
double
D7HT100
7 (178)
double
D8HT100
8 (203)
double
Standard Dampers, including Wingnuts
(Pre-assembled)
28 Gauge (0.48 mm) 100 packs
D4AST
4 (102)
single
D5AST
5 (127)
single
D6AST
6 (152)
single
D7AST
7 (178)
single
D8AST
8 (203)
single
D6HTAST
6 (152)
double
D7HTAST
7 (178)
double
D8HTAST
8 (203)
double
Bulk Components
(100 pack) Damper Handles
H1100
Damper Regulator Hardware
DR69
DR70
DR71
Dampers
Hardware and Components
CAUTION:
Malco Dampers are designed for
forced air systems, they are not capable of being
used in wood, coal, or other similar systems.
D4AST