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usa.siemens.com/hvac
Damper Actuators
B-65






Description





Features
●

●

 
 
 
●

Applications







No. 3 Pneumatic Actuator
331
Nominal
Spring
Rating
Max. Thrust lb. (N) Torque Rating lb.-in (Nm)
Full Stroke Forward
Spring
Return
(No Stroke)
0 psi
(0 kPa)
Gradual
Operation
2-position Operation
or with Positioner
15 psi
(103 kPa)
18 psi
(124 kPa)
25 psi
(172 kPa)
15 psi
(103 kPa)
18 psi
(124 kPa)
25 psi
(172 kPa)


       


       


       
With maximum hysteresis of 2.5 psi (17.2 kPa) @ 90° rotation.
11/05/21 B-47 Removephotoandcaption knoblochd
Siemens offers a
5-year warranty on
damper actuators