Burkert 2031 Manuel de démarrage rapide - Page 14
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7.2.2 Connection of the control medium
Control function A:
→ Connect control medium to lower connection.
Control function B:
→ Connect control medium to upper connection.
Control function I:
→ Connect control medium to upper and lower connections
(see "Fig. 5: Control air connection").
→ Pressure on the upper connection closes the valve.
→ Pressure on the lower connection opens the valve.
7.3
Maintenance work
7.3.1 Actuator
The actuator of the diaphragm valve is maintenance-free provided
it is used according to these operating instructions.
7.3.2 Wearing parts of the diaphragm valve
Parts which are subject to natural wear:
• Seals
• Diaphragm
→ If leaks occur, replace the particular wearing part with an
appropriate spare part.
→ Periodic control of the leakage detection bore (see "Fig. 6").
14
english
Type 2030, 2031, 2031 K, 2032,
Installation
Leakage
detection bore
Diaphragm
Valve body
Fig. 6:
Leakage detection bore
The maintenance and repair instructions can be found in
the internet at: www.burkert.com.
A distended PTFE diaphragm may reduce the flow-rate.
7.3.3 Inspection intervals
The following maintenance work is required for the diaphragm
valve:
→ After the first steam sterilization or when required
retighten body screws crosswise.
→ After maximum 10
switching cycles check the diaphragm for
5
wear.
Muddy and abrasive media require correspondingly shorter
inspection intervals!
2033, 2037
Diaphragm
socket
Port connection