Maintenance, Cleaning; Safety Instructions; Maintenance Work - bürkert 3232 Bedienungsanleitung

9 mainTenance, cleaning
9.1 safety instructions
Danger!
risk of injury due to electrical shock.
▶ Before reaching into the system , switch off the power supply
and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations
for electrical equipment!
Warning!
risk of injury from improper maintenance.
▶ Installation may be carried out by authorized technicians only
and with the appropriate tools!
risk of injury from unintentional activation of the system and
an uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.
9.2 maintenance work
9.2.1 actuator
The actuator of the diaphragm valve is maintenance-free provided it
is used according to these operating instructions.
18
english
Type 3232, 3233, 3233 K, 3234,

Maintenance, Cleaning

9.2.2 Wearing parts of the diaphragm valve
Parts which are subject to natural wear:
• Seals
• Diaphragm
→
If leaks occur, replace the particular wearing parts with an appro-
priate spare part (see Chapter "11").
A bulging PTFE diaphragm may reduce the flow-rate.
9.2.3 service life of the diaphragm
The service life of the diaphragm depends on the following factors:
• Diaphragm material,
• Medium,
• Medium pressure,
• Medium temperature.
9.2.4 cleaning
Commercially available cleaning agents can be used to clean the
outside.
note!
avoid causing damage with cleaning agents.
▶ Before cleaning, check that the cleaning agents are compatible
with the body materials and seals.
3235, 3239