Repairs; Safety Instructions; Replacing The Diaphragm - Burkert 2103 Manuel D'utilisation

Type 2103, 2104, 2105
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.
Repairs
WARNING!
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the product with
pilot pressure, then switch on the medium.
11.2 Replacing the diaphragm
Required spare part
• Diaphragm
Fastening types
Orifice DN Fastening types for diaphragms
(diaphragm
PTFE
size)
8 Diaphragm buttoned
15
Diaphragm with bayonet
catch
20
25
Diaphragm with bayonet
40
catch
50
Tab. 15: Fastening types for diaphragms
english
EPDM / FKM
Diaphragm buttoned
Diaphragm screwed in
37