Emerson Process Management 3024C - Manual

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D103048X012
Type 3024C Diaphragm Actuator
Contents
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the Actuator on the Valve 5 . . . . . . . . .
Actuator Maintenance 7 . . . . . . . . . . . . . . . . . . . . . .
Disassembly 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the Actuator Action 11 . . . . . . . . . . . . .
Side-Mounted Handwheel 11 . . . . . . . . . . . . . . . .
Adjustable Travel Stops 12 . . . . . . . . . . . . . . . . . .
Parts Ordering 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides information on
installation, adjustment, maintenance, and parts
ordering for the Type 3024C actuator (figure 1) for
sizes 30 to 45 and 30E to 45E.
Note
This manual assumes throughout that
the valve construction is
“push-down-to-close.”
Do not install, operate, or maintain a Type 3024C
actuator without first
D being fully trained and
qualified in valve, actuator, and accessory
installation, operation and maintenance, and
D
carefully reading and understanding the contents of
this manual. If you have any questions about these
instructions contact your Emerson Process
Management
t sales office before proceeding.
Figure 1. Type 3024C Actuator with Sliding-Stem Valve
W8488
Note
Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use and maintenance of any
product. Responsibility for the
selection, use, and maintenance of any
product remains with the purchaser
and end-user.
Description
The Type 3024C direct acting (extends
stem/air-to-close) actuator (figure 8) and the reverse
acting (retracts stem/air-to-open) actuator (figure 9)
are spring-opposed pneumatic diaphragm actuators
that provide automatic throttling or on-off operation
of sliding-stem control valves.
The actuator will position the valve plug in response
to varying pneumatic loading pressure on the
actuator diaphragm. Figure 2 shows the operation of
Instruction Manual
Form 5760
March 2007
3024C Actuator