Data Sheet for Product
Submittal Sheet
Document No. 154-035
November 11, 2021
Pneumatic Damper Actuators
Siemens Industry, Inc.
Description
The No. 3 Damper Actuators are rolling diaphragm actuators that
provide modulating or two-position control. The No. 4 Damper
Actuators are rolling diaphragm actuators that are suitable in
applications requiring a medium effective diaphragm area and
long stroke. The No. 6 Damper Actuators are heavy-duty rolling
diaphragm actuators that are suitable in applications requiring a
large, effective diaphragm area and long stroke.
Features
• All metal body construction
• Variety of spring ranges for sequencing
• Pivot mounting for extended shaft
• Positioning relay (optional)
Product Numbers
Stroke
Description
Mounting Style
Nominal Spring Range
Actuator
Clevis
Bracket
Ball Joint
Connector
Pivot
Positioning
Relay
Front
Fixed
Pivot
Extended
Shaft
3-7 psi
(21-48 kPa)
5-10 psi
(35-69 kPa)
8-13 psi
(55-90 kPa)
No. 3 Damper Actuator
2-3/8
in.
(60
mm)
●
●
331-4310
331-4510
331-4810
●
●
●
331-4313
331-4513
331-4813
●
●
●
●
331-4314
331-4514
331-4814
●
●
●
●
—
331-4531
331-4831
●
●
●
●
●
332-4331
332-4531
332-4831
●
●
●
331-4312
331-4512
331-4812
●
●
●
3
331-4311
331-4511
331-4811
●
●
●
●
3
—
—
332-4811
2-3/4
in.
(70
mm)
●
●
—
—
—
—
331-4826
1
331-4827
1
●
●
●
—
—
331-4824
1
●
●
●
●
—
331-4551
1
331-4841
1
●
●
●
●
—
—
331-4821
1
Description
Mounting Style
Nominal Spring Range
Actuator
Clevis
Bracket
Ball Joint
Connector
Pivot
Positioning
Relay
Front
Fixed
Pivot
Extended
Shaft
3-7 psi
(21-48 kPa)
3-13 psi
(21-90
kPa)
5-10 psi
(35-69 kPa)
8-13 psi
(55-90 kPa)
2-3, 8-13 psi
(14-21, 55-90 kPa)
Hesitation Model
No. 4 Damper
Actuator
●
●
331-2910
—
331-2917
331-2963
—
●
●
●
—
—
—
—
331-2974 (2-3/8 in. stroke)
●
●
●
—
331-3018
—
331-3017
—
●
●
●
331-2904
1
331-2905
1
331-2906
1
331-2961
1
331-2909
●
●
●
●
331-2929
331-2930
331-2931
331-2968
—
●
●
●
3
331-3000
331-3001
331-3002
331-2973
1
—
●
●
●
●
3
—
—
—
332-2973
—
OEM specials
OEM specials
—
—
331-2976
1
331-2998
1
—
1
UL Recognized Components under UL’s Damper Actuator category (EMKU2), which covers pneumatic damper actuators intended to be employed on fire
dampers and leakage rated dampers.
2
Available upon request.
3
Mounted on plate for extended shaft with clevis and crank for 3/8-inch (10-mm), 7/16-inch (11-mm), or 1/2-inch (13-mm) diameter shaft.