Physical Location And Placement; Pneumatic Connections - Emerson Fisher 1052 Safety Manual

1052 Actuator
October 2017
The useful life of the 1052 actuator is discussed in the Failure Modes, Effects and Diagnostic Analysis Report for the
1052 actuator.
Installation and Commissioning
Installation
WARNING
To ensure safe and proper functioning of equipment, users of this document must carefully read all instructions, warnings,
and cautions in each applicable instruction manual.
The Fisher 1052 diaphragm rotary actuator must be installed per standard practices outlined in the instruction
manual.
The environment must be checked to verify that environmental conditions do not exceed the ratings.
The 1052 actuator must be accessible for physical inspection.

Physical Location and Placement

The 1052 actuator shall be accessible with sufficient room for the valve, actuator, pneumatic connections, any other
components of the final control element. Provisions shall be made to allow for manual proof testing.
Pneumatic piping to the actuator shall be kept as short and straight as possible to minimize the airflow restrictions and
potential clogging. Long or kinked pneumatic tubes may also increase the valve closure time.
The 1052 actuator shall be mounted in a low vibration environment. If excessive vibration can be expected special
precautions shall be taken to ensure the integrity of pneumatic connectors or the vibration should be reduced using
appropriate damping mounts.

Pneumatic Connections

Recommended piping for the inlet and outlet pneumatic connections to the 1052 actuator is stainless steel or PVC
tubing. The length of tubing between the 1052 actuator and the control device, such as a solenoid valve, shall be kept
as short as possible and free of kinks.
Only dry instrument air filtered to 50 micron level or better shall be used.
The process air pressure shall meet the requirements set forth in the installation manual.
The process air capacity shall be sufficient to move the valve within the required time.
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Instruction Manual Supplement
D103790X012