Allweiler NT 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 Operator’s obligations ....................... 8
2.2.3 Obligations of personnel ..................... 8
2.3 Specific hazards .............................. 8
2.3.1 Explosion-hazard area ....................... 8
2.3.2 Electric shock ................................. 9
2.3.3 Hazardous and spraying (pumped)
liquids ......................................... 9
2.3.4 Moving parts .................................. 9
2.3.5 Hot surfaces .................................. 9
3 Layout and function ................................ 10
3.1 Labels ......................................... 10
3.1.1 Type plate ..................................... 10
3.1.2 Digital nameplate ............................. 10
3.1.3 Pump type code .............................. 11
3.2 Layout ......................................... 12
3.3 Shaft seals .................................... 12
3.3.1 Mechanical seals ............................. 12
3.3.2 Stuffing box ................................... 12
3.4 Auxiliary systems ....... . . .. . . . .. . . . .. . . .. . . .. 13
3.4.1 Sealing systems .. . . .. . . . .. . ... . . .. . . .. . . ... . . 13
4 Transport, storage and disposal .................. 14
4.1 Transport ...................................... 14
4.1.1 Unpacking and inspection on delivery . . .. . . 14
4.1.2 Lifting .......................................... 14
4.2 Treatment for storage ........................ 15
4.3 Storage ....................................... 15
4.4 Removing preservative ...................... 15
4.5 Disposal ....................................... 15
5 Setup and connection .............................. 16
5.1 Preparing the setup .......................... 16
5.1.1 Checking the ambient conditions ... . . . . .. . . 16
5.1.2 Preparing the installation site ............... 16
5.1.3 Preparing the foundation and surface .. . . . . 16
5.1.4 Removing preservative ...................... 16
5.1.5 Installing the heat insulation (optional) . . . . . 16
5.2 Installation on a foundation .................. 17
5.2.1 Placing the pump unit on the
foundation .................................... 17
5.2.2 Fastening the pump unit ..................... 17
5.3 Install
ation without a foundation .. . . . . .. . . . .
18
5.4 Installing the motor ........................... 18
5.5 Planning the pipes ........................... 18
5.5.1 Specifying supports and flange
connections ................................... 18
5.5.2 Specifying nominal diameters .. . . . ... . . . .. . . 18
5.5.3 Specifying pipe lengths ...................... 19
5.5.4 Optimizing changes in cross-section and
direction ...................................... 19
5.5.5 Discharging leaks ............................ 19
5.5.6 Providing safety and control devices
(recommended) .............................. 19
5.6 Connecting the pipes ........................ 19
5.6.1 Keeping the piping clean .................... 19
5.6.2 Installing auxiliary pipes (if available) . . . .. . . 19
5.6.3 Installing the suction pipe .................... 19
5.6.4 Installing the pressure pipe .................. 20
5.6.5 Inspection for stress-free pipe
connections ................................... 20
5.6.6 Checking the support foot for distortion (if
available) ..................................... 20
5.7 Electrical connection ......................... 20
5.7.1 Connecting the motor ........................ 20
5.7.2 Checking the sense of rotation .............. 20
5.8 Aligning the coupling precisely .............. 21
5.9 Aligning the motor ............................ 22
5.9.1 Aligning the motor with sets of shims .. . . . .. 22
5.9.2 Aligning the motor with adjusting
screws ........................................ 22
5.10 Installing the coupling guard ................ 22
6Operation ............................................ 23
6.1 Preparations for the initial start-up . . . . ... . . . 23
6.1.1 Identifying the pump type .................... 23
6.1.2 Removing preservative ...................... 23
6.1.3 Lubricating the bearings ..................... 23
6.1.4 Preparing auxiliary systems (if
available) ..................................... 23
6.1.5 Filling and bleeding .......................... 23
6.2 Start-up ....................................... 24
6.2.1 Switching on .................................. 24
6.2.2 Switching off .................................. 24
6.3 Shutting down the pump ..................... 24
6.4 Start-up following a shutdown period ... . ... 25
6.5 Operating the stand-by pump ............... 25
7 Maintenance ......................................... 26
7.1 Inspections ................................... 26
7.2 Maintenance .................................. 26
7.2.1 Antifriction bearings lubricated with
grease ......................................... 26
7.2.2 Mechanical seals ............................. 26
7.2.3 Stuffing box ................................... 26
7.2.4 Cleaning the pump ........................... 26
7.3 Dismounti
ng ..................................
27
2 NT series BA-2021.04 en-US 161-295/E