AMOT 10GEF, Operation And Maintenance Manual, Page: 58 / 80

58
System Integration
Rev 12 – NOV 2019 OMMG00012
•
Do not install the valve in a position that inhibits the operation of the
manual override handle or access to any electrical/pneumatic actuator
connections.
•
If possible, avoid installation in areas with a risk of water spray or
extreme dirt.
Valve Installation
CAUTIONS
To ensure correct operation of the valve, the valve must not be subject
to stresses from misaligned pipe attachment. Ensure that each valve
flange is attached to one pipe at a time, and that the flange face to
face, and centre to face dimensions are observed. If the pipework
cannot be joined to the valve without causing stress to the valve, the
pipe positions must be adjusted to suit.
Valve assemblies should be suitably supported back to a solid
structure capable of bearing the load when installed into system. It is
not recommended that the weight of the valve assembly is supported
by the adjoining pipework alone.
Ensure that any relevant information from the flange standard of the
flange specification chosen are followed. e.g. bolting and gasket
material requirements.
In situations where the valve has been subject to prolonged low
temperatures, such as on-site or warehouse storage, great care must
be taken to raise the temperature of the valve at a controlled rate of
not more than 1°C/minute, in order to prevent damage to the
component parts.
Contaminants such as large grit particles or swarf could damage the
rotor or even prevent it from rotating in extreme cases. System fluid
flowing through the G Valve must be suitably filtered to ensure
uninterrupted functionality.
• If it is not already installed onto the valve, install the valve actuator as per
the actuator installation instructions in Section 4.8.1.
•
Ensure all flange faces, and valve internals are clean and free from any
debris.
•
For correct operation, ensure no debris is present on any of the valve
externals.
•
Insert one bolt (and washer, if fitting) through each hole of the connecting
pipe flange.
•
Centre the ring gasket on the flange face; the gasket OD should sit
comfortably in the circumference created by the fitted bolts.
•
Using suitable lifting and supporting equipment, fit the valve to the flanged
pipe, ensuring the correct valve port is fitted.