Burkert Type 2051 - Manual (Page 9)

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System Description
5. sysTem descripTiOn
designated application area 5.1.
The pneumatic swivel actuator type 2051 is designed for the actuation
of rotary valves, such as ball or butterfly valves.
general description 5.2.
Pneumatic swivel actuator Fig. 1:
The pneumatic swivel actuator Type 2051 consists of a single or
double-acting linear actuator with an internal coupling to a rotary
piece and an universal interface as per ISO 5211. During the linear
movements of the pistons through the pressure force of the control
air and the force of the resetting springs, the drive shaft is turned via
the coupling. This rotary movement can be used for the actuation of
respective control elements, such as ball or butterfly valves.
Operating principle 5.2.1.
Control function a
Single-acting actuator; resetting by spring force; activation e.g. with
pilot valve.
A
P
Control function B (on request)
Single-acting actuator; resetting by spring force.
B
P
english
Type 2051