Repairs; Safety Instructions; Replacing The Diaphragm - Burkert 2730 Manuel D'utilisation

11

REPAIRS

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 authorised technicians only
and with the appropriate tools!
▶ Observe the tightening torques.
▶ On completion of the work check valve for leaks and function.
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.
24
english
Type 2730 / 2731 / 2731K
Repairs
11.2 Replacing the diaphragm
Required spare part
• Diaphragm
Fastening types
Orifice DN Fastening types for diaphragms
(diaphragm
PTFE
size)
15 Diaphragm buttoned
20
Diaphragm with bayonet
catch
25
32
Diaphragm with bayonet
40
catch
50
Tab. 12: Fastening types for diaphragms
DANGER!
Risk of injury from discharge of medium and pressure!
It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.
▶ Before removing a device, switch off the pressure and vent the
lines.
EPDM / FKM
Diaphragm buttoned
Diaphragm screwed in