D690 Round Damper
LOW-LEAKAGE, SINGLE-BLADE
PRODUCT DATA
Construction:
Frame: Sleeve-type, spiral duct, crimped on downstream side.
6 to 10 in. (152 to 254 mm) diameter: 24 gage galvanized
steel.
12 to 16 in. (305 to 406 mm) diameter: 22 gage galvanized
steel.
Sleeve length: Diameter plus 1 in. (25 mm), minimum length
12 in. (305 mm).
Blade: 16 gage galvanized steel.
Shaft: 1/2 in. (13 mm) diameter, zinc-coated steel.
Extends 3.875 in. (153mm) beyond actuator mounting
plate.
Bearings: Flanged bronze oilite, pressed into frame.
Seals: Closed-cell neoprene on frame with silicone rubber
bead.
Maximum Approach Velocity:
2500 ft/min (17.8 m/s), max. static pressure 4 in. wc.
Damper Travel: 90 degrees.
APPLICATION
The D690 Round Damper is used in conventional air handling
systems to control airflow in a round duct. The damper is
specifically designed to mount to the Honeywell actuators.
FEATURES
• Neoprene and silicone seal for tight closing and low
leakage.
• Oilite bearings for long life.
• 90-degree damper travel for a variety of applications.
• Designed to mount to a variety of Honeywell actuators
for an economical package.
SPECIFICATIONS
Models: Order D690 Damper model according to diameter.
See Table 1.
Dimensions: See Fig. 1.
Finish: Mill galvanized.
Pressure Drop:
Max. at full open: 0.035 in. wc at 1000 ft/min (5 m/s).
Leakage: 12.5 cfm per sq ft of Damper face at 1 in. wc.
Refer to Table 2 for leakage at pressures other than 1 in. wc.
Torque:
Accommodates actuators of up to 44 lb-in. (5 Nm) of torque.
Mounting Plate:
8.5 in. x 9 in. (width x length).
Damper Opening:
Rotate clockwise (cw) to open.
Actuator Mounting:
Attached plate for mounting Honeywell ML6161, ML6171,
MN6105, MN7505, Zelix model series, Spyder MicroVAV
Actuator.
Temperature Range: 32°F to 130°F (0°C to 54°C).
Shipping Weight: See Table 1.
Accessories:
4074EVK Short Shaft Adapter Kit for use when damper shaft
length is less than 1-3/8 in. (35 mm).
Put Bar Code Here
63-2577-01
D690 ROUND DAMPER
Table 1. D690 Diameters, Lengths and Shipping Weights.
Diameter
in in. (mm)
Length
in in. (mm)
Shipping Weight
in lb (kg)
6 (152)
12 (305)
3 (1.4)
8 (203)
12 (305)
4 (1.8)
10 (254)
12 (305)
5 (2.3)
12 (305)
13 (330)
6 (2.7)
14 (356)
15 (381)
8 (3.6)
16 (406)
17 (432)
10 (4.5)
2X
2-31/64
(63)
2X 1-15/16
(49)
9
(229)
4-17/64
(108)
2X
4-7/64
(104)
7X
ø1/8
(3)
Table 2. D690 Leakage Multipliers.
Static Pressure in in. wc
1
cfm
12.5
2
17.625
3
21.625
4
25
2X 5-1/2 (140)
2X 5-55/64 (149)
5-13/64 (132)
8-1/2 (216)
M33003
Fig. 2. D690 Actuator Mounting Plate Dimensions, in
inches (mm).
EXAMPLE:
Leakage at 4 in. wc ( 2.00 × 12.5 ) = 25.0 cfm per sq ft
600
NOTE: The actuator can accommodate the optional
field-installed auxiliary switches.
500
1.0"
400
SEALS
FRAME
CFM
BLADE
0.5"
300
BEARINGS
SHAFT
200
CONTROL
ROD
100
0
6 TO 16 IN.
(152 TO 406 MM)
IN 2-IN. (51 MM)
INCREMENTS
1/2 IN.
(12 MM)
0
10
20
30
40
50
60
70
80
DAMPER POSITION IN DEGREES
90
M974
Fig. 3. 6-inch D690 flowrate vs. damper position.
3-7/8 in.
(153 mm)
M33002
900
Fig. 1. D690 Dimensions.
800
1.0"
700
600
CFM
500
0.5"
400
300
200
100
0
0
10
20
30
40
50
60
70
DAMPER POSITION IN DEGREES
80
90
M975
Fig. 4. 8-inch D690 flowrate vs. damper position.
63-2577—01
2
D690 ROUND DAMPER
1400
3000
1.0"
1200
1.0"
2500
1000
2000
0.5"
CFM
800
CFM
0.5"
1500
600
1000
400
500
200
0
0
10
20
30
40
50
60
70
80
DAMPER POSITION IN DEGREES
0
90
0
10
20
30
40
50
60
70
DAMPER POSITION IN DEGREES
M976
Fig. 5. 10-inch D690 flowrate vs. damper position, in
inches (mm).
80
90
M979
Fig. 8. 16-inch D690 flowrate vs. damper position.
1800
1.0"
1600
1400
1200
0.5"
1000
CFM
800
600
400
200
0
0
10
20
30
40
50
60
70
80
DAMPER POSITION IN DEGREES
90
M977
Fig. 6. 12-inch D690 flowrate vs. damper position.
M33004
Fig. 9. D690 w MN6105.
2500
1.0"
2000
1500
0.5"
CFM
1000
500
0
0
10
20
30
40
50
60
70
DAMPER POSITION IN DEGREES
80
90
M978
Fig. 7. 14-inch D690 flowrate vs. damper position.
3
63-2577—01
D690 ROUND DAMPER
M33063
M33005
Fig. 10. D690 w MS7505.
Fig. 12. D690 w ML6161
M33006
Fig. 11. D690 w Spyder Micro VAV
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark
© 2011 Honeywell International Inc.
63-2577—01 M.S. Rev. 08-11
Printed in United States