Burkert Type 8697 - Manual (Page 21)

21
Fluid installation
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
pneumatic control unit
Danger!
risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure
and deaerate/drain lines.
procedure:
→
Connect the control medium to the pilot air port (1)
(3 to 7 bar, oil, water and dust-free instrument air).
→
Attach the exhaust airline or a silencer to the exhaust air port (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 port.
Exhaust air port
label: 3
Pilot air port
label: 1
Fig. 16: Pneumatic connection
Caution: (Exhaust air concept):
In compliance with degree of protection 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
Type 8697