7.2 Notes on commissioning 34
8 Operation and control
35
8.1 Safety instructions
35
9 Cleaning
36
9.1 Cleaning
36
9.1.1 Cleaning Process Examples 36
9.1.2 Cleaning effect 36
9.1.3 Cleaning the Leakage Cavity 37
9.2 Passivation 37
10 Maintenance
38
10.1 Safety instructions
38
10.2 Inspections 39
10.2.1 Product contact seals 39
10.2.2 Pneumatic connections 39
10.2.3 Electrical connections 39
10.2.4 Signs on the valve 40
10.3 Maintenance intervals 40
10.4 Prior to disassembly 40
10.5 Disassembly 41
10.5.1 Start disassembly 41
10.5.2 Removing the control top 42
10.5.3 Disconnecting the Valve from the Housing 44
10.5.4 Disassembling the Valve into Individual Parts 44
10.5.5 Disassembly balancer plug 45
10.5.6 Disassembly of the housing combination 46
10.6 Installation 46
10.6.1 Torques for the clamps and clamp connections 46
10.6.2 Assembling the valve from individual parts 46
10.6.3 Fitting the control top 48
10.6.4 Assembly of the housing combination 49
10.6.5 Assembly balancer plug 50
10.6.6 Installing the valve insert in the housing 52
10.6.7 Checking the function 53
10.7 Maintenance 54
10.7.1 Cleaning the valve 54
10.7.2 Replacing Seals 55
Replacing V-Ring double-disk 55
Replacing V-Ring RA valve disk 57
Replace more seals 58
10.7.3 Lubricating seals and threads 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 - Double seat valve R
63
14 Dimension sheet - VARIVENT® double seat valve R 75
15 Appendix 77
15.1 Lists
77
15.1.1 Abbreviations and terms 77
430BAL008386EN_3
4 07.02.2022
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