GEA VARIVENT X, Operating Instruction

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8 Operation and control 33
8.1 Safety instructions 33
9 Cleaning 34
9.1 Cleaning 34
9.1.1 Cleaning Process Examples 34
9.1.2 Cleaning effect 34
9.2 Passivation 35
10 Maintenance 36
10.1 Safety instructions 36
10.2 Inspections 37
10.2.1 Product contact seals 37
10.2.2 Pneumatic connections 37
10.2.3 Electrical connections 38
10.3 Maintenance intervals 38
10.4 Prior to disassembly 39
10.5 Disassembling Valve X 39
10.5.1 Manually lift valve X 39
10.5.2 Exposing the Lower Valve Disk 41
10.5.3 Removing the Lower Valve Disk 42
10.5.4 Removing the Control Top 44
10.5.5 Disconnecting the Valve from the Housing 45
10.5.6 Removing the Upper Valve Disk 46
10.6 Disassembling Valve W 47
10.6.1 Manually lift valve W 47
10.6.2 Removing the Control Top 48
10.6.3 Disconnecting valve W from the housing 48
10.6.4 Releasing the Valve Disk 50
10.7 Maintenance 53
10.7.1 Cleaning the Valve 53
10.7.2 Replacing the V-Ring 54
10.7.3 Exchanging the O-ring (TEFASEP gold) 56
10.7.4 Lubricating Seals and Threads 58
10.8 Installation 58
10.8.1 Installing the valve 58
10.8.2 Torques for the Clamps and Clamp Connections 59
10.8.3 Check stroke 59
11 Alarms 61
11.1 Malfunctions and remedies 61
12 Decommissioning 62
12.1 Safety instructions 62
12.2 Disposal 62
12.2.1 General notes 62
12.2.2 Valve Actuator Disposal 62
13 Spare parts list - shuttle valve X 63
14 Spare parts list - shuttle valve X_V 70
15 Spare parts list - Shuttle valve W 74
16 Spare parts list - shuttle valve X_V 81
17 Appendix 84
17.1 Lists 84
17.1.1 Abbreviations and terms 84
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4 08.03.2022