Assembly / Installation; Safety Instructions; Assembly; Pneumatic Installation - Burkert 8681 Quick Start Manual

Assembly/Installation
7. ASSEMBLY / INSTALLATION
7.1. Safety instructions
DANGER!
Risk of injury from high pressure in the equipment!
• Before loosening pneumatic lines and valves, turn off the pressure
and vent the lines.
Danger of explosion in explosive atmosphere
(only in the event of a fault as it is zone 2)!
• Opening the hood or the housing in an explosive atmosphere is
only allowed in a not energized state!
WARNING!
Risk of injury due to electrical shock!
• Before reaching into the system (except for the Teach-In procedure
in a non-explosive atmosphere) switch off the power supply and
secure it to prevent restarting!
• Observe applicable accident prevention and safety regulations
for electrical equipment!
Risk of injury from improper installation!
• Installation may be carried out by authorized technicians only and
with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
• Secure system from unintentional activation.
• Following assembly, ensure a controlled restart.
Type 8681
7.2.

Assembly

For the installation of the Control Head Type 8681 to a process
valve, you will require a process valve-specific hub flange as an
adapter. The hub flange must be adapted to the design of the
process valve.
→
Mount the piston rod with the target on the process valve spindle.
Observe reference dimensions!
→
Fasten the hub flange on the process valve. During this, observe
central alignment and sealing conditions!
→
Check the secure fit of the sealing rings (in the upper and lower
grooves).
→
Mount the control head on the hub flange (seamlessly 360°
rotatable).
→
Secure the control head with the two locking screws (shoulder
screws M5, tightening torque: max. 3.2 Nm) in the middle grove
of the hub flange (see operating instructions).
7.3. Pneumatic Installation
→
Connect the required working connections 2/A1 to 2/A3 (each
according to model) with the corresponding connections on the
process valve.
→
Connect the supply line to supply pressure connection 1/P (2.5
to 8 bar).
→
A silencer has already been mounted on the Exhaust Air Connection
(3/R) in the supplied state.
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