Allweiler NIT Series - Table of Contents

Table of contents
Table of contents
1 About this document ............................... 5
1.1 Target groups ................................. 5
1.2 Other applicable documents ................ 5
1.3 Warnings and symbols ....................... 6
1.4 Technical terms ............................... 6
2 Safety ................................................. 7
2.1 Intended use .................................. 7
2.2 General safety instructions .................. 7
2.2.1 Product safety ................................ 7
2.2.2 Obligations of the operating company . .... . 8
2.2.3 Obligations of personnel ..................... 8
2.3 Specific hazards .............................. 8
2.3.1 Explosion hazard area ....................... 8
2.3.2 Hazardous pumped media .................. 8
3 Layout and function ................................ 9
3.1 Labels ......................................... 9
3.1.1 Type plate ..................................... 9
3.1.2 ATEX plate .................................... 9
3.1.3 Pump type code .............................. 9
3.2 Layout ......................................... 10
3.3 Shaft seals .................................... 11
3.3.1 Mechanical seals ............................. 11
3.4 Auxiliary systems .. .. .. .. ... .. .. .. .. . .. .. .. .. . 11
3.4.1 Sealing systems ... .. . .. .. .. ... .. .. .. .. . .. .. .. 11
4 Transport, storage and disposal .................. 12
4.1 Transport ...................................... 12
4.1.1 Unpacking a nd ins pection on delivery . .. .. . 12
4.1.2 Lifting .......................................... 12
4.2 Preservation .................................. 12
4.3 Storage ....................................... 12
4.4 Removing the preservative .................. 13
4.5 Disposal ....................................... 13
5 Setup and connection .............................. 14
5.1 Preparing the setup .......................... 14
5.1.1 Checking the ambient conditions .. .. .. .. .. . 14
5.1.2 Preparing the installation site ............... 14
5.1.3 Removing the preservative .................. 14
5.1.4 Installing the heat insulation (optional) . .. .. 14
5.2 Planning the pipes ........................... 15
5.2.1 Specifying supports and flange
connections ................................... 15
5.2.2 Specifying nominal d iame ters .. .. .. .. ... .. .. 15
5.2.3 Specifying pipe lengths ...................... 15
5.2.4 Optimizing cross-section and direction
changes ....................................... 15
5.2.5 Discharging leaks ............................ 15
5.2.6 Providing safety and c on trol device s
(recommended) .............................. 15
5.3 Installing in the pipe .......................... 16
5.3.1 Keeping the piping clean .................... 16
5.3.2 Install pump aggregate ...................... 16
5.3.3 Installing a uxiliary pipes (if available) ... .. .. 16
5.4 Installing the motor ........................... 17
5.5 Electrical connection ......................... 18
5.5.1 Connecting the motor ........................ 18
5.5.2 Checking the direction of rota tion .. .. .. .. .. . 18
5.6 Installing the coupling guard ................ 18
5.7 Performing the hydrostatic test .............. 18
6Operation ............................................ 19
6.1 Preparations for the initial start-up . .. .. .. .. . 19
6.1.1 Identifying the pump type .................... 19
6.1.2 Removing the preservative .................. 19
6.1.3 Preparing auxiliary systems (if
available) ..................................... 19
6.1.4 Filling and bleeding .......................... 19
6.1.5 Checking the direction of rota tion .. .. .. .. .. . 20
6.2 Start-up ....................................... 20
6.2.1 Switching on .................................. 20
6.2.2 Switching off .................................. 21
6.3 Shutting down ................................ 21
6.4 Start-up following a shutdown period .. .. ... 22
6.5 Operating the stand-by pump ............... 22
7 Maintenance ......................................... 23
7.1 Inspections ................................... 23
7.2 Maintenance .................................. 23
7.2.1 Antifriction bearing ........................... 23
7.2.2 Mechanical seals ............................. 23
7.2.3 Sealing medium .............................. 24
7.2.4 Cleaning the pump ........................... 24
7.3 Dismounting .................................. 24
7.3.1 Returning the pump to the manu fac-
turer ........................................... 25
7.3.2 Preparations for dismounting ................ 25
7.3.3 Removal of the flanged motor ............... 25
7.4 Installing ...................................... 26
7.4.1 Installation of the pump ...................... 26
7.4.2 Installation of the flanged motor ............. 26
7.5 Ordering spare parts ......................... 27
8 Troubleshooting .................................... 28
9 Appendix ............................................. 31
9.1 Sectional drawings ........................... 31
9.1.1 Auxiliary connection
s ........................
31
9.1.2 Part numbers and desi
gnations .............
31
9.1.3 Sectional drawings ........................... 33
9.2 Technical specifications ...................... 36
9.2.1 Stub shaft diameter at the shaft seal ... .. .. 36
9.2.2 Ambient conditions ........................... 36
9.2.3 Parameters for auxiliary systems . .. . .. .. .. . 36
9.2.4 Sound pressure levels ....................... 36
9.2.5 Tightening torques ........................... 37
2 NIT series BA-2017.03 en-US 160-282/0 – 550 154