Burkert 8695 Guide Rapide page 18

FluidInstallation
8.2. installing the Process Valve
Thread type and dimensions can be found in the corresponding data
sheet.
→
Connect the valve according to the operating instructions for the
valve.
8.3. Pneumatic connection of the control
head
Danger!
risk of injury from high pressure!
• Before dismounting pneumatic lines and valves, turn off the
pressure and vent the lines.
procedure:
→
Connect the control medium to the pilot air port (1)
(3 – 7 bar; instrument air, free of oil, water and dust).
→
Attach the exhaust airline or a silencer to the exhaust air port (3)
(see "Fig. 8: 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.
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Type 8695
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 port.
Fig. 8: Pneumatic Connection
english
Pilot air port
(label: 1)
Exhaust air port
(label: 3)
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