Lutz B70V - English

15
0698-050 B70V/B70V-SR - 04/19
en
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1. General .................................................................................................................17
1.1 Scope of supply .............................................................................................17
1.2 Year of construction ......................................................................................17
2. Motor types ..........................................................................................................17
2.1 Drive units for type B70V-D, series 12.1 - 75.1 ..............................................17
2.2 Drive units for type B70V-SR, series 12.1 - 50.1 ............................................17
3. Pump tubes ..........................................................................................................17
3.1 Operating limits of the torsion shaft for series 12.1 - 50.1 ...........................18
3.2 Resistance .....................................................................................................19
3.3 Operating temperature ................................................................................19
4. Starting up ...........................................................................................................19
4.1 Installation of the B70V ................................................................................19
4.2 Installation of the B70V-SR ...........................................................................19
4.3 Electrical connection of three-phase motors ................................................19
4.4 Direction of rotation .....................................................................................19
4.5 Operating a three-phase motor with attached frequency converter ............19
4.6 Mechanical loads on the pump tube ............................................................20
4.7 Maximum immersion depth .........................................................................20
5. Operation .............................................................................................................20
5.1 Dry running ...................................................................................................20
5.2 Suction funnel ...............................................................................................20
5.3 Operation with closed discharge ..................................................................20
6. Maintenance ........................................................................................................20
6.1 Cleaning ........................................................................................................20
6.2 Mechanical seal ............................................................................................20
6.3 Packing gland ...............................................................................................20
6.4 Lubrication ....................................................................................................21
6.5 Changing the stator ......................................................................................21
7. Repairs .................................................................................................................21
8. Explosion proof pump tubes ................................................................................22
8.1 General .........................................................................................................22
8.2 Special conditions .........................................................................................22
8.3 Equipotential bonding and earthing ............................................................22
8.4 Conductive hoses / hose connections ...........................................................22
8.5 Explosion protection regulations ..................................................................23
8.6 Classication of zones for explosion hazard areas .......................................23
8.7 Explanation of the zone classication when using
eccentric screw pumps for ammable liquids ..............................................23
8.8 Traceability ....................................................................................................23
Declaration of Conformity .............................................................................27