Flowserve ZK210 - Manual (Page 12)

12
Operating Procedure
Installation
It is highly advisable to have the installation work done by qualified staff in the manner
described by these installation instructions. The manufacturer will not accept liability for
damage resulting from improper installation.
In addition, the installation instructions issued by the actuator manufacturers must be
observed.
During installation, it must be ensured that the installation space surrounding the valve is
large enough for the purposes of installation, removal, operation and maintenance.
Please check whether the weight of the valve makes an additional support necessary.
In the case of installation with a horizontal valve-spindle and a pneumatic actuator, the weight
of the actuator must be supported separately.
For the installation work, hoisting gear must be chosen which is designed for the weights
concerned.
The control valves may only be hoisted by the body and/or by the yoke of the valve.
During hoisting, damage to the actuator, the stuffing box and the lubricating device must be
avoided.
The control valve ZK 210 is welded into place directly into the pipe or is mounted between
flanges, depending on the connection facilities that are present.
In the case of welding-connections, the statutory and industrial rules for welding-connections
must be observed. Before welding, the welding locations must be cleaned.
Important
The valve is welded into place in the assembled state; any heat treatment that
is necessary for the welded joints can likewise be performed in the assembled
state. It must be ensured here that the region affected by the heat is limited to
the welded joints.
After the valve has been welded into place, it is recommended that it should
then be opened fully and flushed with water.
Flushing with caustic agents may only be performed if approved by the
manufacturer.
In the case of flange connections, precise positioning of the seals between the flanges must
be ensured. Before installation, the sealing surfaces must be cleaned.
Before the control valve is installed, all transportation packaging and all coverings of
connections must be removed.