Burkert Type 3239 - Manual (Page 18)

18
Maintenance, Cleaning
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.
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.
english
Type 3232, 3233, 3233 K, 3234,
3235, 3239