UNI Geräte 10-EVSA, Operating And Maintenance Instructions Manual

Page: 13 / 25

Maintenance
03/2021 221.100.002-00 13
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4. If there is damage to the valve seat: Replace the complete valve.
5. If there is wear on the guide rings: Replace guide rings.
6. If there is damage to the sealing elements:
• Flange version 4/10-EVSA...; 16-EVSA 30N(H)..: Install the spare parts kit (Page 13)
• Flange version 16/25-EVSA: Install the spare parts kit (Page 13)
• Threaded version 4/10-EVSA 10 – 20 (1” – 2”): Install the spare parts kit (Page 13)
7. Check the valve for internal leaks.
8. Check the valve for external leaks.
9. Subject the valve to a functional test.
10. Install the valve in the system (See “Installation” on page 10).
13.3 Maintenance at the manufacturer
If repair or maintenance work is to be carried out at the manufacturer’s site, take the following steps before
delivery:
1. Clean any substances harmful to health or the environment from the valves.
2. Complete the decontamination declaration and enclose it with the valve.
13.4 Installing the spare parts kit
Danger
Risk of explosion due to incorrect lubricants and sealing materials!
The medium may undergo a chemical reaction and explode if unsuitable lubricants or sealing materials are
used.
•
For specific applications such as oxygen, use only approved lubricants and suitable sealing materials
(BAM approval, see also accompanying document 225.100.259).
Attention
Material damage due to contaminated surface.
Dirty surfaces can damage parts of the valve.
•
Place all parts on a clean surface after disassembling them.
Note
Replace all the spare parts contained in the spare parts kit.
Spare parts
Version Fig. Type Spare part
Flange version
Fig. 1
4-EVSA 5N(H) – 150(H)
10-EVSA 5N(H) – 150(H)
16-EVSA 30N(H)
Spare parts kit, solenoid drive (800)
Fig. 2
16-EVSA 10N(H)/15N(H)
25-EVSA 20N(H)
Spare parts kit, solenoid drive (800)
Flange version Fig. 3 40-EVSA 5NH Solenoid drive (800)
Fig. 4 40-EVSA 10NH Solenoid drive (800)
Fig. 5 40-EVSA 25NH Solenoid drive (800)
Threaded ver-
sion Fig. 6 4-EVSA 2 - 7 Solenoid drive (800)
Fig. 6 10-EVSA 3 - 7 Solenoid drive (800)
Fig. 6 4/10-EVSA 10 - 20 Spare parts kit, solenoid drive (800)
Fig. 7 40-EVSA 5 Solenoid drive (800)