Maintenance, Cleaning; Safety Instructions; Maintenance Work; Inspection Intervals - Burkert 2730 Manuel D'utilisation

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11

mainTenance, cleaning

11.1

safety instructions

Danger!
danger – high pressure in the equipment!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
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.
20
english
Type 2730 / 2731 DN 65-100
Maintenance,Cleaning
11.2

maintenance work

11.2.1 actuator
The actuator of the diaphragm control valve is maintenance-free
provided it is used according to these operating instructions.
11.2.2 Wearing parts of the diaphragm
control valve
Parts which are subject to natural wear:
• Seals
• Diaphragm
If leaks occur, replace the particular wearing part with an appro-
priate spare part (see chapter "13 Replacement Parts").
A bulging PTFE diaphragm may reduce the flow.
The replacing of the wearing parts is described in chapter
"12 Repairs".

11.2.3 inspection intervals

Check diaphragm for wear after maximum 10
Muddy and abrasive media require correspondingly shorter
inspection intervals!
switching cycles.
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2731

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