Burkert Type 2012 User Manual Page 19

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19
Maintenance, Cleaning
Type 2012
9 MAINTENANCE, CLEANING
9.1 Safety instructions
DANGER!
Danger – high pressure in the equipment!
Before loosening the lines and valves, turn off the pressure and
vent the lines.
Risk of injury due to electrical shock!
Before reaching into the system, switch off the power supply and
secure to prevent reactivation!
Observe applicable accident prevention and safety regulations
for electrical equipment!
WARNING!
Risk of injury from improper maintenance!
Maintenance may be performed by authorised technicians only!
To screw on or unscrew valve body or actuator, use an open-end
wrench, never a pipe wrench, and observe tightening torques.
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
Secure system from unintentional activation.
Following maintenance, ensure a controlled restart.
WARNING!
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically.
If the pressure fails, no defined position is reached.
To ensure a controlled restart, first pressurize the device with pilot
pressure, then switch on the medium.
Risk of injury from moving parts in the device!
Do not reach into openings.
9.2 Maintenance work
Actuator:
The actuator of the globe control valve is maintenance-free provided
it is used according to these operating instructions.
Wearing parts of the globe control valve:
Parts which are subject to natural wear:
Valve seat,
Seals.
If leaks occur, replace the particular wearing part with an appro-
priate spare part.
Visual inspection:
Perform regular visual inspections according to the application
conditions:
Check media connections for leaks.
Check release bore on the tube for leaks.
english
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