Installing The Process Valve; Pneumatic Connection Of The Pneumatic Control Unit - Burkert 8690 Manuel D'utilisation

Fluid Installation
7.2.
installing the process Valve
Thread type and dimensions can be found in the corresponding data
sheet.
7.3. pneumatic connection of the
pneumatic control unit
Danger!
danger – high pressure in the equipment!
• Before loosening the lines and valves, turn off the pressure and
vent the lines.
procedure:
→
Connect the control medium to the pressure supply connection (1)
(3 to 7 bar, oil, water and dust-free instrument air).
→
Attach the exhaust airline or a silencer to the exhaust air con-
nection (3).
Important information for the problem-free functioning of the
device:
• The installation must not cause back pressure to build up.
• Select a hose for the connection with an adequate cross-section.
• The exhaust air line must be designed in such a way that no water
or other liquid can get into the device through the exhaust air
connection.
Type 8690
Fig. 17: Pneumatic connection
Caution: (Exhaust air concept):
In compliance with protection class IP67, an exhaust air line
must be installed in the dry area.
Keep the adjacent supply pressure always at least 0.5 –
1 bar above the pressure which is required to move the
actuator to its end position.
english
Pressure supply
connection
label: 1
Exhaust air
connection
label: 3
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