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SERIES: KM-O(ST) & KM-T(ST)
Operating and maintenance instructions
3.2 INSTALLATION STEPS
> Transport the ball valve in its protective packaging to the
place of installation; to protect valve against contamination,
do not unpack until it is ready to be inserted into the pipe
. Remove protective caps at the connection ends of the
valve immediately prior to the installation.
> Check valve (and actuator) for transport damage. Do not
install damaged ball valves or actuators.
> Ensure that only ball vales are installed whose pressure
class, materials of wetted parts, connection type and
flange dimensions are in compliance with the operating
conditions. See relevant ball valve markings.
> The connection data for the actuator unit shall correspond
to the data of the control system. See type plate on actuator
unit. The pipe flanges shall be aligned with the ball valve
flanges and have plane-parallel ends.
> Even if the ball valves were transported in a clean
environment, make sure to check the ball valve and
connecting pipe for contamination or foreign matter prior
to installation. In case of a negative result, thoroughly
clean the valve and, most importantly, remove any hard
foreign matter.
> Use water or compressed air to clean the valves. Place
opening of valve perpendicular to the floor and clean
it. Ensure that the dust is completely removed from the
opening. Next, check and clean the pipe opening and the
connection place. There shall be no joints, rust spots and
foreign matter in order to prevent blocking and leakiness.
> The valve can be installed in any position. An actuator,
however, should not be located directly below the ball
valve: A leakage at the shaft may damage the actuator.
When installing a valve with horizontal actuator shaft and
the actuator dimension exceeds the valve dimension, the
plant supervisor shall decide whether the actuator requires
a support on site.
> When sliding the ball valve (and the necessary seals) into
an already existing pipe, ensure that the space between
the pipe flanges is sucient to prevent damage to the
flange connection surfaces and the seals. However, in
order to prevent any additional stresses in the pipe, this
space should not be larger than required.
INFO
As a rule, flange seals and flange screws are not included:
The torque of the flange screws shall be specified by the
supplier of the flange seal.
> To connect an actuator unit to the control unit, the relevant
instructions apply.
>After installation is finished, perform a functional test:
A ball valve with lever or gear/handwheel shall be easy
to OPEN and CLOSE.
> The following applies to an actuated ball valve: The
valve must properly close and open according to the
control commands. Any obvious malfunctions must be
eliminated prior to commissioning. See also section 4.2
(Troubleshooting).
Incorrectly executed control commands could cause a
danger to life and damage to the pipe system.
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