Burkert Type 2012 - Manual (Page 19)

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.
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