INOXPA PHARMAVALVE, Installation, Service & Maintenance Manual

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ED. 2009/09 / 13
6. Maintenance
6.1. GENERAL
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 disposed of/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 pipe work is 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 gaskets in stock.
During maintenance, pay particular attention to the danger warnings indicated in this manual.
The valve and pipes should not be pressurised during maintenance.
The valve should not be hot during maintenance. Danger of burns!
6.2.1. Diaphragm Maintenance.
REPLACING THE DIAPHRAGM
Preventive maintenance
Replace after twelve (12) months.
In general, the diaphragm must be inspected every 50 hours of sterilisation (steam
or superheated water)
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.
The following can be used as a general guide:
• For water under 100ºC, inspect the diaphragm every 1000 working hours.
• For steam above 100ºC, with a maximum of 135ºC, inspect the diaphragm
every 50 hours of exposure.
• For EPDM diaphragms constantly subjected to steam, check every 250
hours. (use an on/off valve before the PHARMAVALVE to prolong the life of
the EPDM diaphragm)
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 diaphragm material. See the
following table.
SEAL COMPONENT LUBRICANT
Class NLGI DIN
51818
VMQ Klübersynth UH 1 64-2403 3
EPDM PARALIQ GTE 703 3