Technical Instructions
POWERS™ Controls No. 6 Pneumatic Damper Actuator
Document No. 155-029P25
December 3, 2004
Table 1. Product Numbers for No. 6 Pneumatic Damper Actuators.
Product Numbers
Nominal Spring Range
Description
Mounting Style
3-8 psi
(21-55 kPa)
3-13 psi
(21-90 kPa)
8-13 psi
(55-90 kPa)
Actuator, integral pivot
Pivot
331-2793
331-2794
331-3060
1
Actuator, integral pivot and forward travel stops (Figure
1)
Pivot —
331-2796
331-2988
Actuator with clevis for frame mounting (Figure 2) or
remote extended shaft mounting (Figure 3)
Pivot
2
331-2857 331-2858 331-2856
1
Actuator with clevis and positioning relay (Figure 16)
Pivot
2
— —
332-2856
Actuator, integral pivot with pivot post
3
Extended Shaft
331-3012
331-3013
331-3011
1
Actuator, integral pivot with pivot post and positioning
relay
3
(Figure 16)
Extended Shaft with
Positioning Relay
— —
332-3011
1
UL Recognized Components for Fire/Smoke Applications.
2
Also order frame mounting kit accessories.
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. Parts for frame mounting (blade drive) included with kit.
NOTE:
When the actuator is ordered with universal mounting, the mounting plate, pivot post and hardware, clevis,
damper crank, rocker arm, and all screws/nuts are included. Order other frame mounting accessories as
required, if not supplied by damper manufacturer.
Specifications
Effective diaphragm area
17.9 inches
2
(115 cm
2
)
Stroke
4 inch (102 mm)
Housing Aluminum
Stem
Type 416 stainless steel
Diaphragm
Ozone-resistant silicone rubber
Spring
Steel
Bearing
Bronze oilite
Maximum air pressure
30 psig (210 kPa)
Nominal spring ranges
3 to 8 psi (21 to 55 kPa)
3 to 13 psi (21 to 90 kPa)
8 to 13 psi (55 to 90 kPa)
Ambient temperature range
Operation
-20°F to 200°F (-29°C to 93°C)
Air connection
1/8-inch NPT
Type of mounting
Pivot, universal (extended shaft or
frame
mount)
Thrust and torque rating
See Table 2
Dimensions
See Figure 13 through Figure 16
Shipping Weight
9 lb (4.08 kg)
Agency Approvals
Complies with UL555 and UL555S
Page 2
Siemens Building Technologies, Inc.