GEA ECOVENT, Operating Instructions Manual

Page: 47 / 128

9 Maintenance
This chapter contains information about valve maintenance, inspection and repairs. It
also describes the personnel qualifications required for the individual actions.
It is addressed to all persons who carry out actions related to the valve.
INFO
During all repair work, observe the chapter
2 Safety
of this Operating In-
structions.
9.1 Carrying out inspections
Between the maintenance periods, the valves must be checked for leakage and proper
function.
9.1.1 Checking seals that come into contact with the product
Prerequisites
●
Access to seals that come into contact with the product
1. Regularly check the seals that come
into contact with the product:
1.1 Check the sealing ring between
upper housing and lantern.
1.2 Check the V-ring in the valve
disks.
1.3 Check the O-rings between the
valve housings.
5
1
7
5
5
5
5
5
7
Þ
Seals that come into contact with the product have been tested.
9.1.2 Checking the pneumatic connection
Prerequisites
●
Access to the pneumatic connection
1. Check the operating pressure at the pressure reducing and filter station.
2. Regularly clean the air filter in the filter station.
3. Check that the air connections are tight.
4. Check the lines for kinks and leaks.
5. Check the solenoid valves for proper function.
Þ
The pneumatic connection has been checked.
9.1 Carrying out inspections - 47 / 128