Component

Description

Oil Feed Pumps ALP 100-280

X0 27 4 90 A

Product No.

Printed Jan 2020

Book No. 9006010-02 V13
Marine & Diesel Equipment
Published By:
Alfa Laval Tumba AB
SE-147 80 Tumba, Sweden

Telephone: +46 8 530 650 00

Telefax: +46 8 530 310 40

© Alfa Laval Tumba AB 01-2020

Original instruction

This publication or any part there of may not

be reproduced or transmitted by any process
or means without prior written permission of
Alfa Laval Tumba AB.
Contents
1 EC Declaration of Conformity 7

2 Warning signs in text 9

2.1 Warning signs 9

3 Function Description 11
3.1 Application 11
3.1.1 Safety information 11

3.2 Design 12
3.2.1 Mechanical seal 12
3.2.2 Direction of Rotation 13
3.2.3 Pressure relief valve 13

3.3 Parts 14

4 Fault Finding 19
4.1 Possible faults 19
4.2 Troubleshooting 19

5 Maintenance 23
5.1 Safety instructions on maintenance and
repairs 23
5.2 Required maintenance 24
5.3 Mechanical seal 24
5.4 Ball bearing 25
5.5 Screw set 25
5.6 Cleaning the leakage vent hole 25
5.7 Replacing the spider coupling 27
5.8 Replacing the mechanical seal and ball
bearing 30
5.8.1 Dismantling 30
5.8.2 Assembly 32

6 Technical Data 35
6.1 Operating limits 35

3
 6.2 Required Net Positive Suction Height
(NPSH) values 35
6.3 Weights 36
6.4 Dimensions 37
6.4.1 Dimension drawing of ALP pump and pump unit 38

6.5 Capacity tables 39

6.5.1 Capacity at 50 Hz, delta = 4 bar 39
6.5.2 Capacity at 60 Hz, delta = 4 bar 40
6.5.3 Noise levels 41
6.5.4 Labelling 41

7 Installation 43
7.1 Installing the pump 43
7.2 Protect the pump against contamination 44
7.3 Piping 45
7.4 Strainer 45
7.5 Gauges 46
7.6 Commissioning 46
7.6.1 Cleaning the pipe system 46
7.6.2 Filling the pump 46
7.6.3 Checking the direction of rotation 48
7.6.4 Recommissioning the pump 49

8 Transportation, storage and

disposal 51
8.1 Unpacking and checking the state of
delivery 51
8.2 Lifting the pump/pump unit 52
8.3 Storage 53
8.3.1 Preservation 53
8.3.2 Preserving the internal surfaces of the pump 53
8.3.3 Preserving the external surfaces of the pump 54
8.3.4 Removing the preservation 54

8.4 Disposing of the pump 55

9 Spare parts 57
9.1 Spare part kits 57
9.1.1 Tightening torques 61
9.1.2 Required tools for maintenance work 61

4
 !

Study instruction manuals and observe the

warnings before installation, operation,
service and maintenance.

Not following the instructions can result

in serious accidents.

In order to make the information clear only

foreseeable conditions have been considered.
No warnings are given, therefore, for situations
arising from the unintended usage of the
machine and its tools.

5
!
 1 EC Declaration of Conformity

The designating company

Alfa Laval Kolding A/S

Company name

Albuen 31, DK–6000 Kolding, Denmark

Address

+45 79 32 22 00
Phone No.

hereby declares that

Denomination: Three-Screw Pump

Type: ALP
Date: 2019-01-16

Is in conformity with
- Machinery Directive 2006/42/EC

and furthermore declares that if motorised the following applicable directives have been used
- Directive 2014/35/EU on low voltage
- EMC Directive 2014/30/EU

The technical construction file for this machinery has been drawn up. The signer of this declaration
is authorized to compile the technical file.

Manager, Product Center Fluid Handling Bjarne Søndergaard

Title Name

Alfa Laval Kolding A/S

Company Signature

7
1 EC Declaration of Conformity
 2 Warning signs in text

2.1 Warning signs

Pay attention to the safety instructions in this
manual. Below are definitions of the three
grades of warning signs used in the text where
there is a risk for injury to personnel.

NGE R
! DA
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious
injury.

NG
WARNI
!
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.

ON
CAUTI
!
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury.

NOTE

NOTE indicates a potentially hazardous situation

which, if not avoided, may result in property damage.

9
2 Warning signs in text
 3 Function Description

The operating instructions form part of the pump

or of the pump unit and must be kept for future
reference. Furthermore please observe the
associated documents.

3.1 Application
Use the pump solely for transporting fuel or
lubricating oils that are chemically neutral and
that contain no gas or solid components.
Use the pump only within the performance
limitations specified on the machine plate and
in the "Technical data" section. In the case of
operating data that does not agree with the
specifications on the machine plate, please
contact the manufacturer.
The pump is specifically configured for the
operating pressure stated in chapter 5.

3.1.1 Safety information

The following general safety instructions must
be observed:

• No liability is accepted for damage arising

through non-observance of the operating
instructions.

- Read the operating instructions carefully

and observe them.
- The operator-owner is responsible for the
observance of the operating instructions.
- Installation, removal and installation work
may only be carried out by authorised
personnel.

• In order for the warranty to remain valid,

corrective maintenance carried out during
the warranty period requires the express
permission of the manufacturer.
• Observe the general regulations for the
prevention of accidents as well as the local
safety and operating instructions.

11
3 Function Description

• Observe the valid national and international

standards and specifications of the
installation location.
• In case of systems with an increased
potential of danger to humans and/or
machines the failure of a pump may not
lead to injuries or damage to property.

- Always equip systems with an increased

potential of danger with alarm equipment.
- Maintain and check the protective/alarm
equipment regularly.

• The pumped liquids can be dangerous

(e.g. hot, dangerous to health, poisonous,
combustible). Observe the safety
regulations for handling dangerous
materials.
• Pumped liquid can be subject to high
pressure and can cause damage and/or
personal injury should leaks occur.

3.2 Design
Screw pumps are rotating displacement pumps
whose displacement effect results from the
meshing of three rotating screws and the
enclosing housing. The radial support of the
screws is effected by the sliding contact in
the housing which requires lubrication by the
pumped liquid. Screw pumps are therefore not
suitable for dry running and can only be used up
to specific pressure and viscosity limits. Due to
the narrow tolerances, pumping of suspended
solids is not possible. Axial support of the
main screw is carried out by a deep-groove
ball bearing. An internal pressure relief valve
protects against excessive pressure that could
cause housing parts to burst.

3.2.1 Mechanical seal

The functionality of a mechanical seal is based
on the formation of a hydrodynamic film between
rotary seal ring and stationary seal ring of a
mechanical seal. The formation of this film
avoids solid body friction between both parts, the
stability of the film therefore is essential for the
functionality of the mechanical seal. However,
the formation of a fluid film also means that

12
 3 Function Description

the differential pressure on the seal will always

move some fluid through the gap which is filled
by the film. Therefore a properly designed
mechanical seal will always show a certain
amount of leakage.The amount of leakage is
depending on various factors, dominated by
size, rotation speed and differential pressure. In
any case, a leakage of less than 10 drops per
hour (approx. 0.5 cm3/h) is considered to be
normal and gives no reason for a replacement
of the seal.The integrated leakage vent hole
allows draining of this leakage. The drainage
through these hole has to be kept free, see 5.6
Cleaning the leakage vent hole on page 25.
Dry running must be avoided at all costs, as the
seal will overheat and be destroyed in a matter
of minutes.

3.2.2 Direction of Rotation

Standard direction of rotation: clockwise, viewed
from the drive; marked on the housing by two
arrows, see 7.6.3 Checking the direction of
rotation on page 48. Flow direction: marked on
the housing by two arrows, see 7.6.3 Checking
the direction of rotation on page 48.

3.2.3 Pressure relief valve

The integrated pressure relief valve prevents
very high pressures which can result in housing
parts bursting. The valve is purely there as
a safety element and should not be used
for control or regulation such as maintaining
pressure. Circulation through the pressure relief
valve for too long heats the pump to excess.
This reduces viscosity and can ultimately lead
to pump failure. Setting: The valve spring is
pretensioned to an opening pressure of 6 bar
±10 % for separator applications, or delta 10 bar
±10 % for fuel conditioning applications.

13
3 Function Description

3.3 Parts
1 Pressure relief valve 10 Mechanical seal
2 Screw plug 11 Pump
3 Idle screw 12 Adapter housing
4 End cover 13 Motor
5 Sealing sleeve 14 Bracket
6 Ball bearing 15 Motor-side coupling half
7 Main screw 16 Spider
8 Pump housing 17 Pump-side coupling half
9 Leakage vent hole

14
 3 Function Description

X027476A

Fig. 1.Structure of ALP pump

X027477A

Fig. 2.Structure of ALP pump with spider coupling and motor

15
3 Function Description

Parts table

Pos. no. Denomination Pos. no. Denomination

001 Pump 472 Circlip
039 Distance sleeve 501 Spring
043 Sealing sleeve 525 Coupling intermediate ring
052 Coupling 526 Pump bracket foot
056 Supporting ring 529 Motor
058 L-ring 661** Screw set
070 End cover 739.1 O-ring
131 Pump housing 817 Ball bearing
165.1 Screw plug 866 Feather key
165.2 Screw plug 894 Hexagon nut
180 Pump bracket 914.1 Socket screw
222 Flat gasket 914.2 Socket screw
305 Valve body 914.3 Socket screw
457 Mechanical seal 914.4 Socket screw
471 Circlip

** In case of wear of the screw set it is recommended to replace the pump.

16
 3 Function Description

165.2
131

222
070

165.1

817 056
914.1 043
305 471
501
859
866
661
056 472
471
8 817 472
043 859
457 739.1 739.1
661 457
866

X027479A

Fig. 1.ALP 100–280

052
914.3
529
525
039
914.2 180

001

914.4
894 526

X027480B

Fig. 2.Completion spider coupling ALP 100 – 280

17
3 Function Description
 4 Fault Finding

4.1 Possible faults

Faults can have different causes. The following
tables list the symptoms of a fault, the possible
causes and measures for elimination.

Fault Cause/Remedy
No pump suction 1, 2, 3, 4, 5, 6, 7, 8, 30
Delivery rate too low 2, 3, 4, 9, 10, 11, 12, 13, 14, 15, 16
Pump runs noisily 2, 3, 4, 6, 10, 12, 14, 18, 19, 20, 21
Motor overload 9, 10, 13, 21, 22, 25
Uneven delivery rate 2, 3, 4, 6, 10, 12, 14, 15
Leaking shaft seal 17, 23, 24, 25
Pump has seized up 26, 27, 28, 29

4.2 Troubleshooting
No. Cause Remedy
1 Pump suction pipe closed Check shut-off devices in the suction pipe and
open them, if necessary.
2 Suction valve or pipe obstructed Check the suction valve and pipe for clear passage.
3 Suction pipe or shaft seal leaks Check suction pipe or shaft seal for leaks. Pay
particular attention to leakage at valves and
connection points. If necessary, replace parts.
4 Suction head too high Reinstall the pump at lower suctiion head level.
- or -
Reduce pipe length
- or -
Increase pipe diameter
- or -
Heat the liquid to reduce viscosity
- or -
Check that the strainer is not clogged, see 7.4
Strainer on page 45.
5 Level of liquid in the intake container
too low Top up the pumped liquid.
6 Dirty filter/strainer Clean the filter/strainer.
7 Pump suction capacity reduced by
inadequate wetting Fill pump with liquid.

19
4 Fault Finding

No. Cause Remedy

8 Incorrect pump direction of rotation Carry out the electrical connection so that the
direction of pump rotation matches that of the
arrow on the flange cover, see 7.6.3 Checking the
direction of rotation on page 48
9 Differential pressure too high Check the system and reduce the differential
pressure.
10 Viscosity of the pumped liquid too Increase the temperature of the liquid
high
- or -
Reduce the rotation speed.
11 Viscosity of the pumped liquid too Decrease the temperature of the liquid
low
- or -
12 Airlock or gas in the liquid Increase the rotation speed.
Test the pipe system for ingress of air and replace
parts if necessary.
Reduce the suction head
- or -
Increase the inlet pressure.
13 Motor running at wrong voltage or Ensure that the motor voltage and frequency match
frequency the operating voltage.
Compare the speed of the motor with the pump
communication plate. If the data does not match,
adjust the speed of the motor.
14 Pressure relief valve opens during
normal operation Reduce operating pressure.
15 Pressure relief valve leaks Clean the pressure relief valve and reseat if
necessary.
16 Advanced wear of rotating pump Check screw set and housing and replace the
components pump if necessary.
Replace the seal and check the pumped liquid for
abrasive content.
17 Advanced wear of sealing surfaces Support the weight of the pipe system.
18 Pump distorted Loosen pipework connections and mount
stress-free, see 7.3 Piping on page 45.
19 Resonance in the system Provide a flexible bearing arrangement for the
pump unit
- or -
Make the connections with hoses.
20 Speed of flow in suction or pressure Set the flow speed in the suction pipe so that it
pipe too high does not exceed 1 m/s.
Set the flow speed in the pressure pipe so that it
does not exceed 3 m/s.
21 Ball bearing damaged Replace the ball bearing, see 5.8 Replacing the
mechanical seal and ball bearing on page 30.
22 Lack of lubrication or foreign bodies
have caused superficial damage to Check the screw set and the housing. If necessary
rotating pump components replace the pump with free shaft end.
23 Dry running has damaged the shaft Replace the shaft seal, see 5.8 Replacing the
seal mechanical seal and ball bearing on page 30.
When starting up the pump, pay attention to
venting.

20
 4 Fault Finding

No. Cause Remedy

24 Thermal or chemical loading of Check the maximum operating temperature.
elastomer seals exceeded Check the resistance of the elastomers with regard
to the pumped liquid.
25 Cold start when delivering
high-viscosity liquids Preheat the pumped liquid.
26 Foreign bodies in the pump Dismantle the pump and clean it.
Smooth the superficial damage to the housing and
the rotating parts with an oilstone. If necessary,
replace the pump.
27 Differential pressure is too high and Dismantle the pump and clean it.
has overloaded the screws Smooth the superficial damage to the housing and
the rotating parts with an oilstone. If necessary,
replace the pump.
Reduce the differential pressure.
28 Viscosity is too low and has Dismantle the pump and clean it.
overloaded the screws Smooth the superficial damage to the housing and
the rotating parts with an oilstone. If necessary,
replace the pump.
Increase the viscosity, for example by reducing the
operating temperature.
29 Dry running has damaged the pump Dismantle the pump and clean it.
equipment Smooth the superficial damage to the housing and
the rotating parts with an oilstone. If necessary,
replace the pump.
When resuming operation, take action to prevent
dry running, see 7.6.4 Recommissioning the pump
on page 49.
30 Pump does not vent Vent the pressure pipe at the highest point.

21
4 Fault Finding
 5 Maintenance

5.1 Safety instructions on maintenance and repairs

The following safety instructions must be
observed during all the repair work:

All the work may only be carried out by

authorized qualified personnel.
Wear protective clothing during all the work.
Switch off the motor and secure it against being
switched back on.
Before beginning the work let the pump/the
pump unit cool down to the ambient temperature
and remove it from the pipe system.
Ensure that the pump is depressurized.
Collect the emitted pumped liquid safely and
dispose of it in an environmentally compatible
manner.
Also observe the general drawings during all the
work, see Parts on page 14.

23
5 Maintenance

5.2 Required maintenance

The service life of the pump depends to a
great extent on the operating conditions. If the
operating limits are observed, see 6 Technical
Data on page 35, the pump has a service life
of many years. Signs of progressive wear of
individual pump elements:

Finding Cause Elimination

Incipient damage to
Increased running noises bearing Replace the bearing.
Increased leaking Incipient damage to seal Replace the shaft seal.
Deposits on the seal Non-volatile liquids Clean the seal.
Advanced wear of the
Increased play in the shaft coupling spider Replace the spider.
Reduction in the flow rate or pressure Advanced wear of screws
under constant operating conditions and housing Replace the pump.

Tab. 1 Check table for required maintenance

1. Check the pump visually and acoustically

every four weeks.

2. Check for signs of wear as listed in the

table above and eliminate the cause.

5.3 Mechanical seal

Mechanical seals are subject to a natural
wear that depends strongly on the respective
conditions of use. General statements about
the durability can therefore not be given.A
properly designed mechanical seal will always
show a certain amount of leakage. The
amount of leakage is depending on various
factors, dominated by size, rotation speed and
differential pressure. In any case, a leakage of
less than 10 drops per hour (approx.0.5 cm3/h)
is considered to be normal and gives no reason
for a replacement of the seal.In case of heavy
pollution with solidified and/or sticky leakage
residues disassemble the mechanical seal
completely and carefully clean it, together with
the inner surfaces of the sealing sleeve, see 5.8
Replacing the mechanical seal and ball bearing
on page 30. It is recommended to replace the
o-rings when reassembling the mechanical seal.

24
 5 Maintenance

5.4 Ball bearing

The ball bearings used are lifetime lubricated.
Maintenance is therefore not required. We
recommend renewing the ball bearings every
two years.

5.5 Screw set

Main and idle screws are precision machine
parts made from a high performance steel which
is further improved by a nitration treatment.
Provided the pump is operating under regular
conditions, the screws will have a very long
service life. The pump housing is manufactured
from nodular cast iron, including also the bores
where the screws are rotating. When operating
the pump with abrasive liquids, material loss
will generally progress faster in the pump
housing than on the screws. Screws therefore
are not available as spare parts. In case of
progressive wear, the complete pump will have
to be replaced.

5.6 Cleaning the leakage vent hole

The regular small amounts of leakage can result
in deposits that can prevent free draining of
further leakage liquids after a longer operating
period. The leakage vent hole must therefore
be checked monthly and if necessary cleaned.

ON
CAUTI
!
Bearing damage due to insufficient drainage
of shaft seal leakage

X027478A

Fig. 1 Cleaning the leakage vent hole

Check permeability of leakage vent hole

regularly.

1. Remove any drainage line that is

connected.

25
5 Maintenance

2. Check the permeability of the drainage line:

Observe whether a small amount of added
liquid drains, or

Check visually, or
Insert an arbor made of a soft material
(wood, plastic, etc.), see Fig. 1.
3. Clean the line or leakage vent hole, if it is
not free.

4. Reconnect any drainage line that is

connected.

26
 5 Maintenance

5.7 Replacing the spider coupling

Removing the coupling

180

052.1
039

914.2

X027481A

001 Pump 052.2 Motor-side coupling 529 Motor

half
039 Distance sleeve 052.3 Spider 914.2 Socket screws
052.1 Pump-side coupling half 180 Adapter housing 914.3 Socket screws

NG
WARNI
!
Risk of injury and/or damage to equipment
should the pump/pump unit fall
Lift large pumps/pump units using the crane.

Do not stand under raised loads.

1. Before dismantling close the suction and

pressure connection of the pump with
protective covers.
2. Loosen the connecting screws 914.3
between the motor 529 and adapter
housing 180 and lift the pump with adapter
housing from the motor, see Fig. 2
3. Loosen the fixing screw on the motor-side
coupling half 052.2.

27
5 Maintenance

4. Remove the spider 052.3 and pull off the

coupling half 052.2 using a suitable device.
5. Loosen the connecting screws 914.2
between the pump 001 and adapter
housing 180 and remove the adapter
housing, see Fig. 3.
6. Loosen the fixing screw on the pump-side
coupling half 052.1 and remove the
coupling half using suitable mounting
levers.

Installing the coupling

1. Slide the pump-side coupling half 052.1

onto the shaft until it stops. Heating the
coupling to 80–100 °C facilitates mounting.
Tighten the fixing screw of the coupling half.
2. Place the adapter housing 180 on the pump
and tighten the connecting screws 914.2,
see Fig. 4.
180

052.1
039

914.2

X027482A

3. Measure and write down the distance X

between the face of the coupling and the
connecting surface of the adapter housing,
see Fig. 5.

X027211A

28
 5 Maintenance

4. Mount the motor-side coupling half 052.2

on the shaft end of the motor, see Fig.
6. Heating the coupling to 80–100 °C
facilitates mounting.

X027483A

5. Check the distance between the face of the

coupling teeth and the connecting surface
of motor flange. The distance has to be
adjusted to the value X - c, see table below.
6. Insert the spider 052.3 and tighten the
fixation screw at the coupling half 052.2.
7. Place the pump with the adapter housing
on the motor.
8. Turn the pump slightly until the teeth of
the pump-side coupling half 052.1 mesh
correctly into the spaces of the spider
052.3.
9. Tighten the connecting screws 914.3
between the motor and adapter housing
with torque, see 9.1.1 Tightening torques
on page 61.

Linear offset Coupling diameter (mm) c

56 66 80 95
min. [mm] 2.0 2.5 3.0 3.0
max. [mm] 3.5 4.0 4.5 5.0

29
5 Maintenance

5.8 Replacing the mechanical seal and ball bearing

5.8.1 Dismantling
Aids:

Disassembly tool, see 9.1.2 Required tools for

maintenance work on page 61.

- Open-end wrench
- Extractor

1. Remove the circlip 472, screw plug 165.1

and feather key 866, see Fig. 7.
472

866
165.1

X027484A

2. Screw in the disassembly tool A by using

the open-end wrench B, see Fig. 8. The
main screw will be pressed out of the pump
housing. Remove the main screw from the
pump housing.

X027485A

3. Remove the circlip 471 and supporting ring

056, see Fig. 9.

X027251A

30
 5 Maintenance

4. Pull the ball bearing 817 from the main

screw using a suitable extractor C, see Fig.
10.

X027261A

5. Remove L-ring 058, sealing sleeve 043

along with o-ring 739.1 and stationary seal
ring of the mechanical seal along with
o-ring, see Fig. 11.
043 8
457

739.1
Fig. 11
X027517A

6. Remove the remaining parts of the

mechanical seal 457 from the main screw,
see Fig. 11.

31
5 Maintenance

5.8.2 Assembly
Aids:

1. Clean the fitting surfaces and the main

screw. Grease the main screw and o-rings
slightly.
2. Insert the L-ring 058 laterally into the
sealing sleeve 043.
058 043

X027614A

3. Press the stationary seal ring of the

mechanical seal along with o-ring manually
into the sealing sleeve 043, see Fig. 12.
Take the position of the clearance for the
adapter sleeve 859 into account.

X027281A

4. Slide the remaining parts of the mechanical

seal 457 onto the main screw, see Fig. 13.
457

Fig. 13
X027561A

5. Slide the new o-ring 739.1 onto the sealing

sleeve 043 and slide the sealing sleeve
onto the main screw, see Fig. 14.
043

739.1
Fig. 14
X027486B

32
 5 Maintenance

6. Press the ball bearing 817 onto the main

screw, see Fig. 15.

X027311A

7. Mount the supporting ring 056 and circlip

471. Slide the main screw with premounted
sealing sleeve into the pump housing
until the main screw engages into the idle
screws, see Fig. 16. In doing so turn
the main screw and take the position of
the clearance for the adapter sleeve into
account.

X027487A

8. Mount the screw plug 165.1, circlip 472 and

feather key 866, see Fig. 17.
472

866
165.1

X027488A

33
5 Maintenance
 6 Technical Data

6.1 Operating limits

Design pressure max. [bar] 16
Valve opening pressure [bar] 6 bar ± 10 %for separator systems
10 bar ± 10 % for fuel conditioning systems
Temperature max. [°C] 180

Temperature min. [°C] for pump materials -20

Viscosity min. – max. [mm2/s] 1.4 – 10 000

Rotation speed [min-1]
at 50 Hz 2 900
at 60 Hz 3 500

6.2 Required Net Positive Suction Height (NPSH)

values
The following table lists the required NPSH
values during operation with a low-volatile
liquid such as lubricating oil or hydraulic liquid.
When liquids have a readily volatile component
content, the required NPSH values increase
notably when the pumped liquid contains water
(e.g. heavy fuel oil), the values in the table have
to be increased by the vapor pressure of the
water at the specified operating temperature.

35
6 Technical Data

The required NPSH values also need to be

increased if there are gas contents, regardless
of whether it is dissolved or not. In case of any
doubt, please contact the manufacturer.

Size Vis- NPSH value [mWC] at Size Vis- NPSH value [mWC] at
cosity Rotation speed [min-1] cosity Rotation speed [min-1]
[mm2/s] [mm2/s]
1 450 1 750 2 900 3 500 1 450 1 750 2 900 3 500
ALP 6 2.0 2.8 3.4 ALP 6 2.1 2.4 4.0 5.3
100 37 2.0 2.2 3.2 3.8 230 37 2.4 2.7 4.5 6.0
152 2.4 2.6 3.8 4.6 152 2.8 3.2 5.5 7.5
380 2.9 3.1 4.6 5.7 380 3.4 3.9 6.9 9.5
ALP 6 2.0 2.7 3.2 ALP 6 2.3 2.6 4.5 6.1
115 37 2.0 2.2 3.0 3.6 280 37 2.5 2.9 5.1 7.0
152 2.4 2.5 3.6 4.4 152 3.0 3.5 6.3 8.8
380 2.8 3.0 4.4 5.4 380 3.6 4.2 8.0 11.4
ALP 6 2.0 2.1 2.9 3.6
165 37 2.1 2.3 3.3 4.1
152 2.5 2.7 4.0 5.0
380 2.9 3.2 4.9 6.1
ALP 6 2.2 2.4 4.0 5.2
215 37 2.4 2.7 4.5 6.0
152 2.8 3.2 5.5 7.5
380 3.4 3.9 6.9 9.5

6.3 Weights
ALP weights with spider coupling

Motor size Size 100 Size 165 Size 230 Weight of bracket with
115 215 280 screws [kg]
Weight of pump with free shaft end [kg]
20.7 33.3 37.1
Weight of adapter housing with spider coupling and screws [kg]
90 1.6 — — 0.5
100 2.1 2.1 2.4 1.6
112 2.1 2.1 2.4 1.6
132 2.6 2.8 4.8 2.7
160 — 4.1 4.6 1.9
180 — — 5.8 1.9

36
 6 Technical Data

6.4 Dimensions
Dimensions ALP pump

Size Pump [mm] Shaft end [mm]

L1 L2 L3 L4 D1 D2 D3 S1 Z1 g1/g2 B1 B2 d l t u
100 –
115 59 14 129 272.5 160 125 100 11 4 110 20 20 19 43 21.5 6
165 –
215 57 17 140 333.5 230 156 125 14 4 122.5 20 20 28 47 31 8
230 –
280 63.5 18 178.5 363.5 230 146 125 14 4 140 20 20 28 47 31 8

Size Motor Pump unit [mm]

size
LP LL LM* LG** L5 L6 L7 L8 L9 H1 H2 B3 B4 S4
100 –
115 90 273 124 * ** 60 90 19 15 174 12 112 210 180 Ø11
100/112 273 135 * ** 60 97 39 21 165 15 132 250 220 Ø13
132 273 155 * ** 80 116 40 20 164 18 160 290 260 Ø13
165 –
215 100/112 334 135 * ** 60 97 39 21 176 15 132 250 220 Ø13
132 334 168 * ** 80 116 40 20 188 18 160 290 260 Ø13
160 334 204 * ** 110 150 45 20 189 22 180 340 300 Ø18
230 –
280 100/112 364 148 * ** 60 97 39 21 227.5 15 132 250 220 Ø13
132 364 196 * ** 80 116 40 20 254.5 18 160 290 260 Ø13
160 364 204 * ** 110 150 45 20 227.5 22 180 340 300 Ø18
180 364 228 * ** 110 150 45 20 251.5 22 180 340 300 Ø18

Dimensions pump unit with spider coupling

* Depends on motor model.

** LG=LP+LL+LM

37
6 Technical Data

6.4.1 Dimension drawing of ALP

pump and pump unit

X027489A

38
 6 Technical Data

6.5 Capacity tables

6.5.1 Capacity at 50 Hz, delta = 4

bar
Q [l/hour] at viscosity [mm²/s] 50 Hz
Motor kW 13 30 40 60 100 180 380 460** 700**
ALP
100 5,5 10 795 11 054 11 132 11 224 11 317 11 398 11 472 11 486 11 515
2,2 4 978 5 236 5 314 5 407 5 499 5 580 5 654 5 669 5 697
1,5 2 900 3 159 3 237 3 329 3 422 3 503 3 577 3 591 3 619

ALP
115 7,5 13 045 13 271 13 339 13 419 13 500 13 571 13 636 13 649 13 673
2,2 6 156 6 382 6 450 6 530 6 611 6 682 6 746 6 759 6 784
1,5 3 695 3 921 3 989 4 070 4 151 4 222 4 286 4 299 4 324

ALP
165 7,5 18 214 18 521 18 613 18 723 18 833 - - - -
4 8 609 8 916 9 008 9 118 9 228 9 324 9 411 9 429 9 462
2,2 5 179 5 486 5 578 5 687 5 797 5 893 5 981 5 999 6 032

ALP
215 7,5 24 000 - - - - - - - -
4 11 422 11 778 11 885 12 012 12 140 12 251 12 353 12 374 12 412
2,2 6 930 7 286 7 393 7 520 7 648 7 759 7 861 7 882 7 920

ALP
230 5,5 12 463 12 816 12 922 13 048 13 174 13 285 13 385 13 406 13 444
3 7 603 7 956 8 062 8 188 8 314 8 425 8 525 8 546 8 584

ALP
280 5,5 14 956 15 379 15 507 15 658 15 809 15 942 16 063 16 087 16 188
4 9 124 9 547 9 675 9 826 9 977 10 110 10 231 10 255 10 301

39
6 Technical Data

6.5.2 Capacity at 60 Hz, delta = 4

bar
Q [l/hour] at viscosity [mm²/s] 60 Hz
Motor kW 13 30 40 60 100 180 380 460** 700**
ALP
100 5,5 13 288 13 547 13 625 13 717 13 810 13 891 13 965 13 980 14 034
2,2 6 224 6 483 6 561 6 653 6 746 6 827 6 901 6 916 6 944
1,5 3 731 3 990 4 068 4 160 4 253 4 334 4 408 4 422 4 451

ALP
115 7,5 15 997 16 223 16 291 16 372 16 453 16 523 16 590 16 602 16 626
2,2 7 632 7 858 7 926 8 006 8 087 8 158 8 223 8 236 8 260
1,5 4 679 4 905 4 973 5 054 5 135 5 206 5 270 5 283 5 308

ALP
165 7,5 22 331 22 637 22 730 22 839 22 949 - - - -
4 10 667 10 974 11 067 11 176 11 286 11 382 11 470 11 487 11 521
2,2 6 551 6 858 6 950 7 060 7 169 7 266 7 353 7 371 7 404

ALP
215 7,5 29 390 - - - - - - - -
4 14 117 14 473 14 580 14 708 14 835 14 947 15 048 15 069 15 108
2,2 8 726 9 083 9 190 9 317 9 444 9 556 9 658 9 678 9 717

ALP
230 5,5 15 379 15 732 15 838 15 964 16 090 16 201 16 301 16 322 16 360
3 9 547 9 900 10 006 10 132 10 258 10 369 10 469 10 490 10 528

ALP
280 5,5 18 455 18 878 19 006 19 157 19 308 19 441 19 562 19 586 19 680
4 11 457 11 880 12 007 12 158 12 310 12 442 12 563 12 588 12 634

* Max. possible viscosity without cavitation with

a suction head of -4 mWC at sea level.

** Re-sizing of motor required.

40
 6 Technical Data

6.5.3 Noise levels

Guide values at 1 m distance, 1450 min-1, 10
bar

Sound pressure level max. ± 3 [dB(A)]

Size 100 – 115 165 – 215 230 – 280
Pump 60 64 65

6.5.4 Labelling

6.5.4.1 Type code

2 4 6

ALP-0020-BAC090
1 3 5
X027421A

Pos. Designation Type

1 Model ALP
2 Size Corresponds to flow rate in [l/min] at 1 450 min-1
3 Shaft seal B: Mechanical seal of hard material
D: Magnetic coupling
4 Pressure stage A: 6 bar
overflow valve B: 10 bar
5 Completion A: Pump with free shaft end
B: With adaptor housing and coupling (flange mounted)
C: With adaptor housing, coupling and foot (foot mounted)
D: B with motor
E: C with Motor
6 Frame size 080
090
100
112
132
160
180

41
6 Technical Data
 7 Installation

Observe the following instructions:

• When selecting the location take the

operating limits, Net Positive Suction Head
(NPSH) values and ambient conditions into
account, see 6 Technical Data on page 35.
• The function, safety and service life may
not be impaired by humidity, temperature
influences or explosive atmospheres.
• During the installation ensure that all the
parts of the pump can be accessed easily
and that the maintenance work can be
carried out easily.

7.1 Installing the pump

The pump must be installed to meet the
following demands:

• The pump must be mounted on a solid

foundation and on a drip tray or in a
cofferdam.
• The pump can be operated vertically or
horizontally. However, if vertically mounted
the pump should not be mounted above
the motor since pumped liquid could enter
the motor should a leak occur.
• The pump must be easily accessed for
inspection and service.
• The pump must be installed so that the oil
is kept in the pump casing when the oil flow
is stopped.
• The pump must be installed as close as
possible to the feed tank in order to avoid
suction losses.

43
7 Installation

X027490A

Model ALP vertical mounting Model ALP horizontal mounting

7.2 Protect the pump against contamination

ON
CAUTI
!
Avoid damage through impurities in the pipe
system.
1. During welding work attach protective
covers in front of the connecting flanges.
2. Ensure when welding that welding beads
and abrasive dust cannot get into the pipe
system and the pump.
3. After the connecting work clean the pipe
system thoroughly, see 7.6.1 Cleaning the
pipe system on page 46

44
 7 Installation

7.3 Piping
The pipe installation must meet the following
demands:

• The pipes must be installed and supported

with no support from the pump casing.
• The pipe flanges must fit the pump flanges
so that they can be connected without using
any force. Check the clearance and the
angular, vertical and linear offset, adjusting
where necessary.
• Before the pipes are connected to the
pump they must be cleaned from particles
resulting from, for example, welding and
cutting.
• Tighten the connecting screws crosswise
with torque, see 9.1.1 Tightening torques
on page 61. X027491A

• In installations where the pump does not

retain the oil at stand still, the suction pipe
should be arranged so it forms a liquid trap
together with the pump. The liquid trap
should secure that the pump is kept at least
half filled with oil at stand still.
• Shut-off valves must be installed on both
sides of the pump.
• The suction line should be dimensioned for
an oil flow speed between 0.5 and 1.2 m/s,
and the pressure line for 1 to 3 m/s.
• The suction line must be equipped with a X027513A

port near the pump, that allows filling the

pump with oil before the initial start.
• The manometric suction head must not
exceed the NPSH values in 6.2 Required
Net Positive Suction Height (NPSH) values
on page 35

7.4 Strainer
An oil strainer of suitable size should be installed
to protect the pump against damage and wear
from coarse particles.

The pressure drop across the strainer should

not exceed 10 kPa (0.1 bar) at maximum flow
rate and normal viscosity.

45
7 Installation

7.5 Gauges
Pressure gauges on both the suction and
the pressure side must be connected by 1/2”
sockets and ball valves.

7.6 Commissioning

7.6.1 Cleaning the pipe system

To protect the pump against soiling the complete
pipe system has to be cleaned carefully before
initial commissioning of the pump.

7.6.2 Filling the pump

The filling procedure must be followed when the
pump is taken into operation after installation
and whenever the pump casing has been
emptied of oil, for example, when the pump has
been dismantled.

NG
WARNI
!
Entrapment hazard
Do not start filling the pump unless the power is
switched off.

1. Remove the fan cover from the electric

motor.
2. Turn the pump shaft or the fan impeller of
the motor. This tests that the pump runs
smoothly. If the pump cannot be turned by
hand, remedy the fault before installing the
pump, see 4.2 Troubleshooting on page 19.
3. Open the port on the suction pipe near the
pump.

46
 7 Installation

4. Open the shut-off valve on the pressure

side of the pump.

5. Vent the shaft seal compartment (3).

In installations with positive suction pressure:
After opening the inlet and outlet valves, simply
open the deaeration plug (3) a few turns until oil
sips out. Tighten the plug.

In installation with negative suction pressure:

After opening the inlet and outlet valves, remove
the deaeration plug (3) and fill the shaft seal
compartment with oil. Fit and tighten the plug. X027514A

6. Fill the pump with oil while rotating the

pump manually. The pump is rotated
by turning the motor fan in the direction
indicated by the rotation arrow on the motor
or connection flange. (There are arrows for
inlet and outlet directions on the pump. Do
not mix them up with the rotation arrow.)

7. When the pump is filled, close the filling port

and refit the fan cover.

8. Check that all valves necessary for

operation are open.

47
7 Installation

7.6.3 Checking the direction of

rotation
The direction of rotation and the flow direction
are indicated by arrows on the pump. The
direction of rotation of the motor gives the
direction of rotation of the pump. That is to say,
the fan impeller of the motor must rotate in the
direction in which the arrows on the pump are
pointing to indicate direction of rotation.

Standard direction of rotation: clockwise

(viewed from the drive)

X027493A

1. Arrow for flow direction

2. Arrow for direction of rotation

ON
CAUTI
!
Dry running can damage pump equipment.
Ensure that the pump is filled properly.

Switch the pump on for a maximum of 1 second and

then off again immediately.

1. Switch on the power supply and then turn it

off again immediately.

2. Compare the direction of rotation of the fan

impeller with the arrow indicating direction
of rotation on the pump flange (2).

3. If the directions do not match, swap over

two electrical connection phases. Repeat
Steps 1 and 2.

ON
CAUTI
!
Dry running can damage pump equipment.
Ensure that the pump is filled properly.

If the pump does not deliver after 10–15 seconds,

abort commissioning.

48
 7 Installation

1. Ensure that the pump is filled. In case

of doubt prelubricate the pump and
mechanical seal by pouring in liquid via the
vent hole, see 5.6 Cleaning the leakage
vent hole on page 25.

2. Switch on the pump.

The pump will deliver when the pressure
on the pressure side of the pump rises or a
system-side flow indicator triggers.

3. If the pump does not deliver after

10–15 seconds of operation, abort initial
commissioning, establish the cause of
the fault and only then continue the
commissioning procedure. Follow the
instructions in the fault table, see 4.2
Troubleshooting on page 19.

4. Run the pump for a few minutes to allow the

pipe system to vent fully. The pipe system
is fully vented when there is a smooth
operating noise and a pressure gauge on
the pressure side of the pump shows no
more fluctuations.

7.6.4 Recommissioning the

pump
Carry out all the steps as for the commissioning
process, see 7.6 Commissioning on page 46.

49
7 Installation
 8 Transportation, storage and
disposal

8.1 Unpacking and checking the state of delivery

1. Upon delivery unpack the pump/pump unit
and check for transport damage.

2. Report any transport damage immediately

to the manufacturer.

3. Dispose of packing materials in accordance

with the locally applicable regulations.

51
8 Transportation, storage and disposal

8.2 Lifting the pump/pump unit

X027494A

Prerequisites:

• Sufficiently dimensioned hoisting

equipment

• The used hoisting equipment conforms to

the local regulations and health and safety
regulations

NGE R
! DA
Risk of injury and/or damage to equipment
should the pump/pump unit fall.
Use intact and correctly dimensioned hoisting
equipment suitable for the weight to be lifted.

52
 8 Transportation, storage and disposal

Choose the attachment points of the hoisting

equipment according to the center of gravity and
weight distribution.

Always use at least two slings.

Fasten the hoisting equipment in one of the

three ways shown above.

Do not stand under raised loads.

Attach the hoisting equipment to the pump/pump

unit, see Fig., and lift the pump/pump unit with
a crane.

8.3 Storage
During the test run, the internal components of
the pump are wetted with test oil, which has
a preservative effect. The pipe connections
are fitted with protective covers. The external
components of the pump are preserved with
a single-coat PU-based two-component paint.
The preservative applied at the factory will
protect the pump for about six weeks, if it
is stored in a dry and clean location. The
manufacturer offers a long-term preservation for
storage times of up to 60 months. With longterm
conservation the pump is additionally packed in
hermetically sealing anti-corrosion paper.

8.3.1 Preservation
Preservation has to be carried out in the
following cases:

• For standard delivery: For storage periods

exceeding six weeks and in case of adverse
storage conditions such as high humidity,
salty air, etc.
• For delivery with long-term preservation:
If the packaging has been opened or
damaged.

8.3.2 Preserving the internal

surfaces of the pump
1. Close the suction connection of the pump
with a blind flange.

53
8 Transportation, storage and disposal

2. Pour non-corrosive, resin-free oil into the

pressure connection until it reaches approx.
2 cm under the pressure flange, while
slowly turning the main screw against the
direction of rotation.

3. Close the pressure connection of the pump

with a blind flange.

After about 6 months storage check the oil

level in the pump and top up if necessary.

8.3.3 Preserving the external

surfaces of the pump
Aids:

- Preservative (e.g. Castrol Rustilo DWX 33)

Paint or spray the preservative onto all plain and

unpainted parts.

At intervals of about six months, check the

preservative effect and if necessary repeat
preservation.

NOTE

Store the preserved pump in a cool and dry place and

do not expose it to direct sunlight.

8.3.4 Removing the preservation

Aids:

- Solvent

- Steam-jet cleaning device with

wax-dissolving additives

NG
WARNI
!
Risk of injury through emitted preservative
oil.
Wear protective clothing during all the work.

Remove the blind flange with caution to relieve any

pressure inside the pump.

Collect the emitted oil safely and dispose of it in an

environmentally compatible manner.

54
 8 Transportation, storage and disposal

1. Clean the outside of the pump with

solvents, if necessary using a steam-jet
cleaning device.

2. Remove the blind flange on the pressure

side.

3. Drain the pump, collecting the preservative

oil in a suitable vessel.

4. Remove the blind flange on the suction

side.

5. To remove the residual oil, rinse the pump

with the pumped liquid.

8.4 Disposing of the pump

Aids:

- Solvents or industrial cleaners suitable for

the pumped liquid

NG
WARNI
!
Danger of poisoning and damage to the
environment from the pumped liquid.
Wear protective clothing during all the work.

Collect the discharging pumped liquid and oil and

dispose of it in accordance with the locally applicable
regulations.

Neutralize any residues of the pumped liquid.

1. Disassemble the pump.

2. Clean residues of the pumped liquid from

the individual parts.

3. Separate sealing elements made of

elastomers and ceramics (SiC) from the
pump and dispose of them in the residual
waste.

4. Recycle metal parts.

55
8 Transportation, storage and disposal
 9 Spare parts

165.2

222

165.1

305 471
501
866
056 472
058 817
043
457 739.1

X027479B

Image show available spare parts (ALP 100-280)

9.1 Spare part kits

Pump size Kit type Part. no
O-ring Kit 9007240-84
ALP 100-115
Overhaul Kit 9007240-81
O-ring Kit 9007240-85
ALP 165-280
Overhaul Kit 9007240-83

57
9 Spare parts

Coupling kits

Pump size Motor size Part. no

80 9024734-07
90 9024734-08
ALP 100-115
100/112 9024734-09
132 9024734-10
100/112 9024734-11
ALP 165-215 132 9024734-12
160 9024734-13
100/112 9024734-14
132 9024734-15
ALP 230-280
160 9024734-16
180 9024734-17

58
 9 Spare parts

Spare part kit Qty. Pos.no. Denomination

A: O-ring kit
056 1 056 Supporting ring
1 058 L-ring
1 457.1 O-ring stationary seal
ring
471
1 457.2 O-ring rotary seal ring
058 472
1 471 Circlip
457.1 457.2
1 472 Circlip
X027602B
1 Disassembly tool
B: Overhaul kit
222 1 056 Supporting ring
056 1 058 L-ring
817
739.1 1 222 Flat gasket
1 457 Mechanical seal
1 471 Circlip
471 1 472 Circlip
472
1 739.1 O-ring
058
457 1 817 Ball bearing
866
X027497B 1 866 Feather key
1 Disassembly tool

C: Coupling kit
052 1 052 Coupling
525
***

*** Only for sizes 55-85

X027181e (motor sizes IEC 90-112)

59
9 Spare parts

Coupling intermediate ring, [525]

Pump type Motor size Part. no
0100, 80 9029429-01
0115 90 9029429-01
100/112 9029429-01
132 9029429-02
0165, 100/112 9029429-01
0215 132 9029429-02
160 9029429-03
0230, 100/112 9029429-01
X027151C 0280 132 9029429-02
160 9029429-03
180 9029429-04

Cylindrical spring, [501] Part. no

9014370-05
(ALP100-ALP115) 6 bar
9014370-06
(ALP100-ALP115) 10 bar
9014370-07
(ALP165-ALP280) 6 bar
9014370-08
(ALP165-ALP280) 10 bar

501
X027151D

Sealing sleeve, [043] Part. no

ALP100, ALP115 9029771-04
ALP165, ALP215, ALP230, 9029771-05
ALP280

X027151E

Drain pipe, [155]

Part Qty. Dimensions Part # Alfa Laval
HHR1201 1 20x1,5x60 mm -0/+2 mm 902447901

60
 9 Spare parts

9.1.1 Tightening torques

Tightening torque [Nm] for screws with metric threads + head contact With thread
surfaces measured in
inches
+ wedge lock Stainless steel Screw plugs
washers screws A2 and A4 with elastomer
seal
Thread 8.8 10.9 8.8 + 8.8 Rust-proof Property Property Thread Galva-
Alu* A4-70 class 70 class 80 nized +
stain-
less
steel
M3 1.5 — 1.2 1.5 1.1 — — G1/8" 13
M4 2.9 4.1 2.3 3 2 — — G1/4" 30
M5 6.0 8.0 4.8 6.0 3.9 3.5 4.7 G3/8" 60
M6 9.5 14 7.6 10.3 6.9 6 8 G1/2" 80
M8 23.1 34 18.,4 25 17 16 22 G3/4" 120
M10 46 68 36.8 47 33 32 43 G1" 200
M12 80 117 64 84 56 56 75 G1 1/4" 400
M14 127 186 101 133 89 — — G1 1/2" 450
M16 194 285 155 204 136 135 180 * reduced
M18 280 390 224 284 191 — — tightening
torque when
M20 392 558 313 399 267 280 370
screwing into
M24 675 960 540 687 460 455 605 aluminum

9.1.2 Required tools for

maintenance work
Disassembly tool

X027391A

Dimensions disassembly tool [mm]

Size d1 d2 l1 l2 s
G 13
100 – 280 1/2" Ø 4 0 15 17

61