GESTRA Gestramat CW 41, Original Installation Instructions

Page: 23 / 40

23
Spare parts for diaphragm actuator
No spare parts are available for the diaphragm
actuator. In the event of damage, please replace
the complete diaphragm actuator.
Nominal
size
DN25 DN40,
DN50
DN80,
DN100
Diaphragm
actuator
order
number 184984 184983 184975
Removing the equipment
You must remove the equipment prior to any
maintenance or repair work.
DANGER
If the equipment is used in contaminated
areas there is a risk of severe injuries or
death caused by harmful substances in or
on the equipment.
 Only qualified personnel are allowed to
perform work on contaminated
equipment.

Always wear the protective clothing
prescribed for contaminated areas
when working on the equipment.
 Make sure that the equipment is
completely decontaminated before
carrying out any service work.

Follow the pertinent instructions for
handling the hazardous substances in
question.
DANGER
Personnel working on pipes are exposed to
safety risks and may suffer severe injuries,
poisoning or even loss of life.

Make sure that no hot or hazardous
fluid is in the equipment or the pipes.
 Make sure that the pipes upstream
and downstream of the equipment are
depressurised.

Make sure that the installation is
switched off and protected against
unauthorised or unintended activation.
 Make sure that the equipment and the
pipes have cooled down to room
temperatures.

Wear protective clothing that is
suitable for the fluid and, if necessary,
wear protective gear.
For more information on suitable protective clothing
and safety gear refer to the safety data sheet of the
fluid in question.
When the equipment is closed, the higher-level
system parts are under operating pressure. To let
off pressure, proceed as follows:

Block off the supply lines to the equipment.

In the event of back pressure, you must also
block off the drainage line downstream of the
equipment.
The screw plugs opposite the thermometer and
pressure gauge feature a hole. Through this, you
can let off pressure with the screw plugs.
 Slacken one of the two screw plugs slightly.
You can now hear the medium diverting through the
hole. The display on the pressure gauge changes.
 Once the pressure has fully dissipated, close the
screw plug.
 Only commence work once the pressure gauge
displays zero pressure.