Installation And Setup; Overview; Svi Ii Esd Exploded View - GE Masoneilan SVI II ESD Installation And Maintenance Manual

4. Installation and Setup

Overview

Figure 40 shows the SVI II ESD positioner which is designed to prevent and mitigate possibly
negative situations. It is a position controller assembled on a pneumatically actuated valve
assembly. Its role is to position an emergency shutdown valve to 0% or 100% with a probability
of failure on demand (PFD) in accordance with IEC61508 for SIL3 application. It replaces solenoid
valves typically utilized to actuate a spring-return. This section provides detailed procedures for
installing the SVI II ESD.
NOTE
Pneumatic Train and
Cover (I/P Module, Relay)
I/P
© 2016 General Electric Company. All rights reserved.
Prior to beginning the installation process review the "Safety Information"
on page 17.
SVI II ESD Cover
Manifold
Relay
Figure 40 SVI II ESD Exploded View
SVI II ESD Assembly
Electronics
Module
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