CVS 1051 Series Instruction Manual

CVS Series 1051/1052
Rotary Actuator
Sizes 30 - 70
All CVS Controls actuators are to be installed and
maintained in accordance with instructions supplied
by CVS Controls.
This manual includes information on installing,
maintaining and adjusting the CVS Series 1051
Actuator, sizes 30 to 60, and Series 1052, sizes 40-
70. For information on other equipment used with
these actuators, consult the appropriate manuals.
Introduction
The CVS Series 1051/1052 Diaphragm Rotary
Actuator is a pneumatic spring-return actuator
designed for use with rotary-shaft control valves.
This is a direct-acting actuator, and an increase in
the loading pressure extends the diaphragm rod out
of the spring barrel. The CVS Type 1051/1052
Actuator is suitable for on-off service, or for
throttling service when used with a valve positioner.
The Series 1052 Actuator includes a spring
adjuster, which is suitable for use with or without a
positioner.
The stroking time is dependent on the actuator size,
rotation, spring rate, initial spring compression and
supply pressure. If the stroking time is critical for
your application, consult CVS Controls Ltd. for
proper settings.
The travel indicator is a combination graduated disk
and pointer located on the actuator end of the valve
shaft. Fixed travel stops are an available option.
Refer to Table 1 for additional specifications for the
CVS Series 1051/1052 Actuator. Additional
information specific to the actuator as shipped from
the factory are stamped on the nameplate
(Figure 2) installed on the actuator.
Head Office
3900 – 101 Street
Edmonton, Alberta, Canada T6E 0A5
Office: (780) 437-3055
Fax: (780) 436-5461
Website: www.cvs-controls.com
CVS Series 1051 Actuator
Installation
When the actuator and the valve are shipped
together from CVS Controls Ltd., the actuator is
usually mounted onto the valve. Refer to the valve
body instruction when installing the valve into the
pipeline, and then follow the instructions in the
Loading Connections portion of this manual.
If the actuator has been shipped separately, or if it is
necessary to mount the actuator onto the valve, refer
to procedures in the Actuator Mounting portion of this
manual.
E-Mail: info@cvs-controls.com
Instruction Manual
CVS Series 1052 Actuator
Calgary Sales Office
3516 114 Avenue SE
Calgary, Alberta, Canada T2Z 3V6
Office: (403) 250-1416
Fax: (403) 291-9487
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