ED. 2009/11
Maintenance
13
6.
Maintenance
6.1.
GENERAL INFORMATION
This valve, just like any other machine, requires maintenance. The instructions contained in this manual cover the identification
and replacement of spare parts. The instructions have been prepared for maintenance personnel and for those responsible for
the supply of spare parts.
Carefully read Chapter 8.
Technical specifications.
All replaced material should be duly eliminated/recycled according to the directives in effect in the
area.
Assembly and disassembly of the valves must only be carried out by qualified staff.
Before starting on maintenance work, ensure that the tubes are not pressurised.
6.2.
MAINTENANCE.
The following is recommended for appropriate maintenance
:
•
Regular inspection of the valve and its components..
•
Keep a record of the operation of each valve, noting any incidents.
•
Always have spare seals in stock.
During maintenance, pay particular attention to the danger indications indicated in this manual.
The valve and pipes should never be pressurised during maintenance.
The valve should never be hot during maintenance. Danger of burns!
6.2.1.
Maintenance of the gaskets.
REPLACEMENT OF GASKETS
Preventive maintenance
Replace after twelve (12) months.
Maintenance after a leak
Replace at the end of the process.
Scheduled maintenance
Regularly check that there are no leaks and that the valve is operating smoothly.
Keep a record of the valve.
Use statistics to plan inspections.
Lubrication
During assembly, apply lubricants compatible with the seal material. See the
following table.
GASKET COMPONENT
LUBRICANT
Class NLGI DIN
51818
NBR/ FPM
Klübersynth UH 1 64-2403
3
EPDM/ NBR/ FPM
PARALIQ GTE 703
3
The time interval between each preventive maintenance may vary according to the working conditions to which the valve is
submitted: Temperature, pressure, number of operations per day, type of cleaning solutions used, etc.
6.2.2.
Storage.
Storage of the valves should be carried out in an enclosed area, under the following conditions:
Temperature
from 15ºC to 30ºC
Relative humidity
<60%
Open-air storage of the equipment is NOT allowed.
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