Table of contents
List of figures
Fig. 1 Type plate (example) ........................ 10
Fig. 2 Digital nameplate, standard version
(example) ..................................... 10
Fig. 3 Digital nameplate, variant with optional RFID
transmitter (example) ........................ 10
Fig. 4 Pump type code (example) .................. 11
Fig. 5 Layout ......................................... 12
Fig. 6 Single mechanical gasket with depressurized
quenching receptacle (sketch) .............. 13
Fig. 7 Fastening the lifting gear to the pump
aggregate ..................................... 14
Fig. 8 Straight pipe lengths upstream
and downstream of the pump
(recommended) .............................. 17
Fig. 9 Widening the stub shaft ...................... 18
Fig. 10 Widening the stub shaft ...................... 24
Fig. 11 Widening the stub shaft ...................... 25
Fig. 12 U3...D – Unbalanced mechanical seal – sizes
with diameter 16 at the shaft seal .... .. ... .. 31
Fig. 13 Stub shaft version with clamping ring .. .. .. . 32
Fig. 14 U3...D – Unbalanced mechanical seal – sizes
with diameter 30 at the shaft seal .... .. ... .. 33
Fig. 15 Sizes with shaft diameter 24 at the shaft
seal ............................................ 34
Fig. 16 Attachment of the guard sheet to the motor
bell housing ................................... 34
Fig. 17 Version with housing cover 360-250, sizes
40-250, 50-250 and 65/-200 ................. 34
Fig. 18 Two-stage sizes with diameter 30 at the shaft
seal, non-cooled, unbalanced mechanical
seal ........................................... 35
Fig. 19 Stub shaft version with clamping ring .. .. .. . 36
Fig. 20 Housing cover version (sizes 2/40-250 and
2/50-250) ..................................... 36
Fig. 21 U3...D – Unbalanced mechanical seal – sizes
with diameter 40 at the shaft seal .... .. ... .. 37
Fig. 22 Version with intermediate ring for sizes
65-400 ........................................ 38
Fig. 23 Version with housing cover 470-
315, sizes
65-315, 80-315 and 100/-315 .. .. .. .. .. .. .. . 38
Fig. 24 Attachment of the guard sheet to the motor
bell housing ................................... 38
Fig. 25 Flange loads at the pump ................... 41
List of tables
Tab. 1 Target groups and their duties .............. 5
Tab. 2 Other applicable documents and their
purpose ....................................... 5
Tab. 3 Warnings and consequences of disregarding
them ........................................... 6
Tab. 4 Symbols and their meaning ................. 6
Tab. 5 Technical terms and their meaning . . . .. .. .. 6
Tab. 6 Treatment for storage ........................ 14
Tab. 7 Measures to be taken if the pump is shut
down .......................................... 21
Tab. 8 Measures depending on the behavior of the
pumped medium ............................. 21
Tab. 9 Measures to be taken after prolonged
shutdown periods ............................ 22
Tab. 10 Measures for return .......................... 24
Tab. 11 Fault number assignment ................... 27
Tab. 12 Troubleshooting list .......................... 29
Tab. 13 Abbreviations of the connection
designations .................................. 30
Tab. 14 Designations of components according to
part numbers ................................. 31
Tab. 15 Assignment of the pump size to the stub
shaft diameter ................................ 39
Tab. 16 Ambient conditions ........................... 39
Tab. 17 Sound pressure level ........................ 39
Tab. 18 Tightening torques ........................... 40
Tab. 19 Cleaning agents .............................. 40
Tab. 20 Maximum flange loads ....................... 41
Tab. 21 Spare parts for two years of continuous
operation ...................................... 42
Tab. 22 Declaration of harmlessness ............... 43
Tab. 23 Declaration of conformity according to EC
Machine Directive ............................ 44
4 NI series BA-2021.06 en-US 550 113 – 146-900/E