GEA VARIVENT A, Translation Of The Original Operating Instructions

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Table of Contents
4
Operating Instructions · Control Valve A
Edition 2016-06-07
Control Valve with Welding Ends .................................................................................................................... 27
Pneumatic Connections .................................................................................................................................. 29
Electrical Connections ..................................................................................................................................... 30
Commissioning ................................................................................................................................................ 31
• Checks Prior to Commissioning .................................................................................................................. 31
• Testing the Valve Function Without Product ............................................................................................... 31
• Valve Stroke ................................................................................................................................................ 32
• Tests During the Product Run ..................................................................................................................... 32
• Operation .................................................................................................................................................... 32
Cleaning and Passivation ............................................................................................................................. 33
Cleaning .......................................................................................................................................................... 33
Cleaning Process Examples ........................................................................................................................... 33
• Typical Cleaning Parameters in Dairy Operations ...................................................................................... 33
• Typical Cleaning Parameters in Breweries ................................................................................................. 33
• Cleaning Parameters .................................................................................................................................. 34
• Passivation .................................................................................................................................................. 34
Malfunctions .................................................................................................................................................. 35
Maintenance .................................................................................................................................................. 36
Inspections ...................................................................................................................................................... 36
• Product Contact Seals ................................................................................................................................ 36
• Pneumatic Connections .............................................................................................................................. 36
• Electrical Connections ................................................................................................................................ 36
Maintenance Intervals ..................................................................................................................................... 37
Prior to Disassembly ....................................................................................................................................... 37
Disassembly .................................................................................................................................................... 38
Maintenance .................................................................................................................................................... 39
• Cleaning the Valve ...................................................................................................................................... 39
• Replacing Seals .......................................................................................................................................... 39
• Lubricating Seals and Threads ................................................................................................................... 41
Assembly......................................................................................................................................................... 42
Dismantling the Actuator Housing Cover ........................................................................................................ 43
Checking the Function .................................................................................................................................... 43
• Setting the Stroke ....................................................................................................................................... 43
• Valve Stroke ................................................................................................................................................ 44
Disposal .......................................................................................................................................................... 44
• General Notes ............................................................................................................................................. 44
• Valve Actuator Disposal .............................................................................................................................. 44
Technical Data ............................................................................................................................................... 45
Type Plate ....................................................................................................................................................... 45
Technical Data ................................................................................................................................................ 46
Resistance of Sealing Materials ...................................................................................................................... 47
Pipe Ends ........................................................................................................................................................ 47
Tools ............................................................................................................................................................... 48
Lubricants ........................................................................................................................................................ 49
Weights ........................................................................................................................................................... 49
Spare Parts Lists – Control Valves .............................................................................................................. 51
Control Valve A ............................................................................................................................................... 51
Control Valve A...W ......................................................................................................................................... 53
Control Valve A...X .......................................................................................................................................... 55