25
Maintenance, cleaning
Visual inspection:
According to the usage conditions, perform regular visual
inspections:
→
Check medium ports for tightness.
→
Check relief bore on the pipe for leaks.
Relief bore
Image20: Reliefbore
10.2.1
Cleaning
Commercially available cleaning agents can be used to clean the
outside.
NOTE!
Avoid causing damage with cleaning agents.
▶
Before cleaning, check that the cleaning agents are compa
-
tible with body materials and seals.
10.3
Replacing wearing parts
10.3.1
Replacing the valve seat
The valve set consists of
•
swivel plate with seal
•
pin
•
seal
To change the valve set, first remove the actuator from the valve
body.
DANGER!
Risk of injury from discharge of pressure and escaping
medium!
Dismantling a device which is under pressure is hazardous due
to a sudden discharge of pressure or escaping medium.
▶
Before disassembly, shut off the pressure and vent all lines.
WARNING!
Risk of injury due to using wrong tool!
Performing installation work, using unsuitable tools, is
hazardous due to possible damage to the device.
▶
To remove the actuator from the valve body, use an open-
end wrench, never a pipe wrench.
Type 2101
English