TRVS15 25 Johnson Controls
PB_VG3000_03 2020
8
Installation Site Information
The valve installation site should be easily accessible
and provide sufficient room for service and removal of
actuators. Manual shut-off valves should be located up
and downstream of the control valve, to facilitate service
and repairs without drainage of the piping system.
The control valve should preferably be installed in vertical
or horizontal position.
Piping should be insulated to protect actuators against
high temperatures. Insulation should leave sufficient room
for service of stem packing.
To ensure trouble free function of the control valves the
pipe immediately upstream of the valve should be straight
far the length of at least. 2x DN and the pipe immediately
downstream straight far the length at least 6x DN.
Commissioning
Prior to commissioning check information on material,
pressure, temperature and flow direction in conjunction
with the installation piping system plan. Impurities in the
piping system and valves, such as dirt, welding beads
etc. will cause the system to leak. Prior to commissioning
a new installation or re-commissioning after repairs or
service, ensure that:
• Correct installation and assembly work has been
completed.
• Only qualied personnel carry out commissioning.
• Correct functional position of the valve is ascertained.
• Maintenance of existing protective facilities is carried
out.
Valve Removal
In addition to general guidelines the following points
should be observed:
• Pressure free piping system
• Cooled uid
• Drained piping system
• With corrosive or aggressive uids, the piping system
should be vented.
Work to be performed by qualified personnel only.