Section 4: Installation; Before You Start; Failure Modes; Valve Rotation - Emerson EL-O-Matic F Series Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 6

Section 4: Installation

This section explains:
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4.1

Before You Start

SAFETY FIRST
In case of an air or electrical failure, it is important to know the behavior of the actuator.
Before mounting the actuator on a valve, consult the following sections below.
4.2 Actuator Rotation Direction
4.2.1

Valve Rotation

For the following paragraphs we assume that valves rotate as indicated in figure 3.
Figure 3
Installation
The actuator rotation direction.
In which position the actuator will end after a failure.
Principles of operation:
— Solenoid operation
— Double acting and Spring return operation
Assembly codes.
Actuator to valve assembly.
Normal valve rotation
The valve is closed after
a clockwise rotation.
Section 4: Installation
September 2015
The valve is open after
a counterclockwise rotation.
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