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Allweiler
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NIT Series
Allweiler NIT Series User Manual
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Centrifugal
Pump
with
Vo
l
u
t
e
C
a
s
i
n
g
Original
Operating
Manual
NIT
series
V
ersion
BA-2017.03
en-US
ID-No.
550
154
160-282/0
ALL
WEILE
R
GmbH
Postfach
1
140
Allweilerstr.
1
78301
Radolfzell
Germany
Phone:
+49
(0)
7732-8
6-0
Fax:
+49
(0)
7732-8
6-43
6
E-mail:
service@allweiler
.de
Internet:
http://www
.allweiler
.com
We
reserve
the
right
to
m
ake
technical
changes.
Read
carefully
before
use.
Save
for
future
use.
2
Table of Contents
Table of Contents
2
About this Document
5
Target Groups
5
Other Applicable Documents
5
Target Groups and Their Duties
5
Other Applicable Documents and Their Purpose
5
Warnings and Symbols
6
Technical Terms
6
Warnings and Consequences of Disregarding Them
6
Symbols and Their Meaning
6
Technical Terms and Their Meaning
6
Safety
7
Intended Use
7
General Safety Instructions
7
Product Safety
7
Obligations of the Operating Company
8
Obligations of Personnel
8
Specific Hazards
8
Explosion Hazard Area
8
Hazardous Pumped Media
8
Layout and Function
9
Labels
9
Type Plate
9
ATEX Plate
9
Pump Type Code
9
Layout
10
Shaft Seals
11
Mechanical Seals
11
Auxiliary Systems
11
Sealing Systems
11
Safety Stuffing Box
11
Tics
11
Transport, Storage and Disposal
12
Transport
12
Unpacking and Inspection on Delivery
12
Lifting
12
Preservation
12
Storage
12
Aggregate
12
Treatment for Storage
12
Removing the Preservative
13
Disposal
13
Setup and Connection
14
Preparing the Setup
14
Checking the Ambient Conditions
14
Preparing the Installation Site
14
Removing the Preservative
14
Installing the Heat Insulation (Optional)
14
Planning the Pipes
15
Specifying Supports and Flange Connections
15
Specifying Nominal Diameters
15
Specifying Pipe Lengths
15
Optimizing Cross-Section and Direction Changes
15
Discharging Leaks
15
Providing Safety and Control Devices (Recommended)
15
Installing in the Pipe
16
Keeping the Piping Clean
16
Install Pump Aggregate
16
Installing Auxiliary Pipes (if Available)
16
Installing the Motor
17
Electrical Connection
18
Connecting the Motor
18
Checking the Direction of Rotation
18
Installing the Coupling Guard
18
Performing the Hydrostatic Test
18
Operation
19
Preparations for the Initial Start-Up
19
Identifying the Pump Type
19
Removing the Preservative
19
Preparing Auxiliary Systems (if Available)
19
Filling and Bleeding
19
Checking the Direction of Rotation
20
Start-Up
20
Switching on
20
Switching off
21
Shutting down
21
Measures to be Taken if the Pump Is Shut down
21
Measures Depending on the Behavior of the Pumped Medium
21
Start-Up Following a Shutdown Period
22
Operating the Stand-By Pump
22
Measures to be Taken after Prolonged Shutdown Periods
22
Maintenance
23
Inspections
23
Antifriction Bearing
23
Mechanical Seals
23
Sealing Medium
24
Cleaning the Pump
24
Dismounting
24
Returning the Pump to the Manufacturer
25
Preparations for Dismounting
25
Removal of the Flanged Motor
25
Measures for Return
25
Installing
26
Installation of the Pump
26
Installation of the Flanged Motor
26
Ordering Spare Parts
27
Troubleshooting
28
Fault Number Assignment
28
Troubleshooting List
30
Appendix
31
Sectional Drawings
31
Auxiliary Connections
31
Part Numbers and Designations
31
Tab
31
Abbreviations of the Connection Designations
31
Designations of Components According to Part Numbers
32
Sectional Drawings
33
Fan Casing
34
And 50-250)
34
Connections
34
40-250/01 and 50-250/01
34
Technical Specifications
36
Stub Shaft Diameter at the Shaft Seal
36
Ambient Conditions
36
Parameters for Auxiliary Systems
36
Sound Pressure Levels
36
Tab
36
Assignment of the Pump Size to the Stub
36
Shaft Diameter
36
Operating Parameters for Sealing Medium in
36
Open Flow System
36
Tightening Torques
37
Tab
37
Cleaning Agents
37
Maximum Flange Loads
38
Tab
39
Spare Parts for Two Years of Continuous Operation
39
Declaration of Harmlessness
40
Declaration of Conformity According to EC Machine Directives
41
4
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Allweiler NIT Series Specifications
General
Brand
Allweiler
Model
NIT Series
Category
Water Pump
Language
English
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