Kracht GmbH
ii 88046020002
1 General ................................................................................................................................................................4
1.1 About the documentation ....................................................................................................................................................... 4
1.2 Manufacturer address................................................................................................................................................................ 4
1.3 Applicable documents............................................................................................................................................................... 4
1.4 Symbols...........................................................................................................................................................................................5
2 Safety...................................................................................................................................................................6
2.1 Intended use.................................................................................................................................................................................. 6
2.2 Personnel qualification and training.................................................................................................................................... 6
2.3 Basic safety instructions............................................................................................................................................................ 7
2.4 Fundamental hazards.................................................................................................................................................................7
3 Device description.............................................................................................................................................. 9
3.1 Functional principle .................................................................................................................................................................... 9
3.2 Basic design.................................................................................................................................................................................10
3.3 Type key ........................................................................................................................................................................................11
4 Technical data...................................................................................................................................................13
4.1 General ..........................................................................................................................................................................................13
4.2 Overview nominal sizes...........................................................................................................................................................14
4.3 Overview connection sizes.....................................................................................................................................................15
4.4 Flow resistance Δp ....................................................................................................................................................................17
4.4.1 Ball bearings..................................................................................................................................................................17
4.4.2 Plain bearings...............................................................................................................................................................20
4.5 Operating pressure...................................................................................................................................................................22
4.6 Permissible temperature range............................................................................................................................................23
4.7 Material data ...............................................................................................................................................................................24
4.8 Weight ...........................................................................................................................................................................................25
4.9 Dimensions ..................................................................................................................................................................................26
5 Transport and storage .....................................................................................................................................27
5.1 General ..........................................................................................................................................................................................27
5.2 Storage ..........................................................................................................................................................................................27
5.3 Storage conditions....................................................................................................................................................................28
6 Installation ........................................................................................................................................................29
6.1 Important notes about explosion protection.................................................................................................................29
6.2 Mechanical installation............................................................................................................................................................30
6.2.1 Preparation....................................................................................................................................................................30
6.2.2 Plate connection ........................................................................................................................................................30
6.2.3 Pipe connection...........................................................................................................................................................32
6.2.4 Rotary encoder ............................................................................................................................................................32
6.3 Electrical connection ................................................................................................................................................................33
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