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Section 2: Introduction
This section explains:
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How to identify the received product,
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The intended use of the product
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Construction details
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Actuator specifications
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Identification
The A210-211-212-213 Series Rack and Pinion actuators are available as double-acting or
spring-return versions. 15 models are available, ranging from 9 Nm to 3500 Nm (80 to
31000 lbf.in) nominal torque output.
The A210-211-212-213 Series-Series uses standardized interfaces for solenoid, switchbox
or positioner mounting (VDI/VDE3845; NAMUR). The valve interface is equipped with
an insert in the pinion bottom that allows both ISO5211 or DIN3337 mounting.
The springs in the spring-return version allow a fail action in case of loss of air supply
pressure (Fail-to-Close or Fail-to-Open).
As from size PA032 and PA040 double-acting versions have flat end caps to reduce
actuator length and internal air volume.
Figure 1
Identification
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Top auxilliaries interface (VDI/VDE 3845; NAMUR)
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Solenoid interface (VDI/VDE 3845; NAMUR)
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Valve interface with ISO5211, DIN 3337 patterns and insert drive
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Spring-return actuators:
- with springs
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Double-acting actuators: - no springs
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