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111 6138 050 E
Danger:
Safe operation of the valve is only ensured if the valve is installed, commissioned and
serviced by qualified personnel in compliance with warning references in this SDI. In
addition, the general installation and safety regulations for piping, installation construction
and the professional use of tools and safety equipment must be guaranteed. Observe
unconditionally during all work on the control valve. Ignoring this information may cause
physical or material damages.
Pre-installation precautions:
•
Provide protection against adverse weather conditions, e.g. moisture; (otherwise use drying agent).
•
Suitable protective action prevents damage.
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 position with actuator installed in the upright position. Inclined to horizontal installation without
support is only permissible for actuators with a low specific weight.
The permitted actuator weight when installed in the horizontal position, relative to valve stem, without
additional support at site is:
Pipes should be insulated to protect actuators against high temperatures; here sufficient room is to be left for
servicing the stem seal pack. For trouble free function of the control valve the pipe immediately upstream of
the valve should be straight for the length of at least 2x DN and the pipe immediately downstream for the
length of at least 6x DN.
Pipes should be insulated to protect actuators against high temperatures; here sufficient room is to be left for
servicing the stem seal pack. For trouble free function of the control valve the pipe immediately upstream of
the valve should be straight for the length of at least 2x DN and the pipe immediately downstream for the
length of at least 6x DN.
Actuator mounting and removal information:
The control valve is normally supplied complete with actuator. It is not permitted to remove or replace an
actuator on systems in operation, under operating temperature and pressure. For conversion or service, the
actuator mounting procedure should follow the actuator SDI.
During mounting procedure care should be taken NOT to rotate the plug with downward pressure.
The maximum valve operating force0 must be observed when replacing the actuator. This is:
Commissioning:
•
Prior to commissioning check information on material, pressure, temperature and flow-direction are
in conjunction with the installation piping system plan.
•
Follow TRB 700.
•
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 qualified personnel carry out commissioning.
Correct functional position of the valve is ascertained.
Maintenance of existing protective facilities is carried out
7kg for DN 15 - 40
2000N for DN 15 – 40
3
A
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