Fristam Pumps FP Series Assembly instructions

Original Instructions
Assembly Instructions
Centrifugal Pump
FP Series
Pump Type:
Pump No.:

The German version is the original version of the operating instructions manual. Other languages are translations of the original operating
manual.
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All rights reserved. The contents, including graphic images and layout of this operating instructions manual are
subject to copyright protection and to other laws for the protection of intellectual property. The publication and
modification of the contents are not authorised. Moreover, you may not copy, publish and alter the contents there-
in for commercial purposes, or transmit the information to a third party.
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3
Table of Contens
1 Introduction............................................... 5
1.1 Foreword................................................................... 5
1.2 Manufacturer........................................................... 5
1.3 Scope of Supply...................................................... 5
1.4 Pump Without Motor (Optional)...................... 5
1.5 Scope of Documentation.................................... 5
1.6 Display Conventions............................................. 5
2 Safety.......................................................... 6
2.1 Basic Safety Instructions...................................... 6
2.2 Intended Use ........................................................... 6
2.3 Improper Use........................................................... 6
2.4 Warning and Instruction Labels........................ 6
2.5 Noise Emissions ...................................................... 6
2.6 Disposal ..................................................................... 7
3 Design and Function ................................. 7
3.1 Principles of Design............................................... 7
3.2 Models ....................................................................... 8
3.3 Pump Key.................................................................. 9
3.4 Versions ..................................................................... 9
4 Transportation........................................... 9
4.1 Transportation ........................................................ 9
5 Storage ....................................................... 10
5.1 Safety Instructions................................................. 10
5.2 Storage Conditions................................................ 10
5.3 Long-Term Storage ............................................... 11
5.4 Recommissioning .................................................. 11
6 Installation................................................. 11
6.1 Safety Instructions................................................. 11
6.2 Installation Location ............................................. 11
6.3 Reduction of Noise and Vibration.................... 11
6.4 Pump Fixation......................................................... 11
6.5 Electrical Connection............................................ 12
6.6 Connection of Sealing or Quenching 
Liquid (Optional) ................................................... 13
6.7 Cleaning.................................................................... 13
7 Operation .................................................. 13
7.1 Safety Instructions ................................................ 13
7.2 Commencement of Operation......................... 13
7.3 Monitoring of Operation .................................... 14
7.4 Stopping of Operation ........................................ 14
7.5 Pump Decommissioning.................................... 14
7.6 Cleaning in Place ................................................... 14
8 Faults ......................................................... 14
8.1 Safety Instructions ................................................ 15
9 Maintenance ............................................. 15
9.1 Safety Instructions ................................................ 15
9.2 Replacement Parts................................................ 15
9.3 Inspection of Sealing and Quenching 
Liquid (Optional) ................................................... 15
9.4 Lubrication of Motor Bearings.......................... 15
9.5 Lubrication of Shaft Bearing ............................. 15
9.6 Motor Replacement ............................................. 17
9.7 Shaft Seal Replacement ...................................... 18
9.8 Pump Head Removal .......................................... 18
9.9 Checking of the Clearances............................... 18
9.10 Pump Head Attachment..................................... 20
9.11 Models FPE and FP…V: Mounting and 
Alignment of the Pump Shaft........................... 27
9.12 Model L: Coupling Replacement ..................... 27
10 Appendix 1 ................................................ 28
10.1 Specifications.......................................................... 28
10.2 Maintenance Intervals1....................................... 28
10.3 Troubleshooting Table........................................ 29
10.4 Number Key ............................................................ 31
10.5 EC Declaration of Conformity........................... 33
10.6 EG Declaration of Incorporation...................... 33

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4
11 Appendix 2 – Assembly Instructions
(Optional) ................................................... 34
11.1 Safety Instructions................................................. 34
11.2 Scope.......................................................................... 34
11.3 Rating Plate.............................................................. 34
11.4 Moving Without Motor........................................ 34
11.5 Installation Location ............................................. 35
11.6 Pump Installation................................................... 35

5
1Introduction
1.1 Foreword
This operator's manual describes all FP centrifugal pump sizes,
models, and versions.
Information on the model, size, and version of your pump can
be found on the rating plate on your pump and in the "Order-
Related Documents" in the attached documents.
1.2 Manufacturer
FRISTAM Pumpen KG (GmbH & Co.)
Kurt-A.-Körber-Chaussee 55
21033 Hamburg
GERMANY
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
1.3 Scope of Supply
The package includes the following items:
– Pump with motor = pump unit
optional: without motor
– Covers for pipe fittings
– Optional: assembly kit
–Fristam accessories (if applicable)
– Documentation
►Check the shipment for completeness and damage.
Immediately notify Fristam of any missing items or damage.
1.4 Pump Without Motor (Optional)
The pump can optionally be supplied without a motor. In this
case, continue reading up to and including Chapter 3, "Design
and Function," page 7, and then skip to Chapter 11, "Appendix 2 –
Assembly Instructions (Optional)," page 34.
1.5 Scope of Documentation
The documentation includes the following items:
–This operator's manual
– Appendix 1 with maintenance, lubrication, and tighten-
ing torque tables
– Appendix 2 with assembly instructions
–Attached documents:
– Order-Related Documents
– Supplier Documentation (motor, coupling, etc.)
– Documentation on Fristam accessories (if applicable)
– Certificates (materials certificates, etc.), if applicable
– Declaration of Conformity or Declaration of Incorporation
1.6 Display Conventions
List items are preceded by dashes:
–Part1
–Part2
Handling instructions that must be performed in a specified
order are numbered:
1. Turn device on.
2. Turn device off.
Handling instructions that do not need to be performed in a
specified order are preceded by triangular bullets:
►Action
►Action
1.6.1 Safety Instructions
A safety instruction with the signal word "Danger" indicates
personal hazards causing death or serious injury.
A safety instruction with the signal word "Warning" indicates
personal hazards that may lead to death or serious injury.
A safety instruction with the signal word "Caution" indicates
personal hazards that may lead to mild to moderate injuries.
A safety instruction with the signal word "Note" warns of the
possibility of material damage.

/ / FP PUMP SERIES / / /
6
2 Safety
2.1 Basic Safety Instructions
►Please read this operator's manual completely before using
the pump and keep it available at the pump installation
location.
►Heed the applicable national regulations of the owner's
country and the company's work and safety regulations.
►All work described here may only be performed by qualified
experts with caution.
►Danger of contamination: Heed legal and operational safety
regulations when pumping dangerous media.
2.2 Intended Use
The standard FP centrifugal pump versions are designed for use
in the food industry, the pharmaceutical and biotechnology
industry, and CIP process technology.
They can be used to pump liquids with dynamic viscosities of up
to 1200 mPa s and media temperatures of up to 150°C. The
medium can contain a slight amount of air or gas, be
homogeneous, or contain a small amount of additives.
Each pump is designed according to customer requirements.
The seal materials have been selected for the respective
medium. The pump may only be used to pump the medium it
was designed for (see “Order-Related Documents“in the attached
documents).
2.3 Improper Use
The standard FP centrifugal pump versions may not be used in
explosive atmospheres. Special explosion-proof versions are
available for this.
Pumping of media other than those specified can destroy the
pump.
Standard pump units from Fristam are described in this
operator's manual. If nonstandard items or extras are installed,
the operator assumes the responsibility for operation.
Modifications and changes to the pump are only permissible
with the explicit consent of Fristam.
2.4 Warning and Instruction Labels
►Do not alter or remove the labels on the pump.
►Immediately replace damaged or lost labels with ones that
are true to the originals.
2.4.1 Direction of Rotation
Fig. 1 "Impeller Direction of Rotation" label
This label shows the direction of rotation of the impeller. It is
located at the front on the pump cover.
2.4.2 Hot Surface
Fig. 2Safetylabel:"HotSurface"
This label indicates that parts can become hot during operation
or, if applicable, that hot media is being pumped. Only touch
the pump if you are wearing suitable gloves.
2.4.3 No Dry Running
Fig. 3Safetylabel:"NoDryRunning"
This label indicates that the pump cannot be run dry. There
must always be medium in the suction line and the pump when
the pump is started. Otherwise, the pump will be damaged.
2.4.4 Rating Plate
Fig. 4 Pump unit rating plate
2.5 Noise Emissions
►The local noise exposure regulations must be complied with.
For noise emission values for the pumps, please see
Chapter 10.1, "Specifications," page 28.
1Manufacturer
2Type: pump series, pump size, model, version
3SN: serial number of the pump
4H: discharge head [m]
5P: motor output [kW]
6Year of manufacture
7mttl: mass (total) [kg]
8nR:rated speed [1/min]
9Q: flow rate [m³/h]
10 CE mark
1
2
3
5
4
6
7
8
9
10

7
Noise Generated by Running Pump
Hearing damage.
►Wear ear protectors when using pumps with specified sound
pressure levels of greater than 80 dBA.
2.6 Disposal
2.6.1 Disposal of Transportation Package
►Recycle the transportation package.
2.6.2 Models KF and L 1: Disposal of Grease
►Dispose of grease and objects saturated with grease in an
environmentally friendly manner in accordance with appli-
cable regulations.
2.6.3 Models L 2, L 3/L3V, L 4V: Disposal of Lubricating Oil
►Dispose of oil and objects saturated with oil in an
environmentally friendly manner in accordance with
applicable regulations.
2.6.4 Disposal of Pump
1. Carefully clean the pump. Dispose of residues in an
environmentally friendly manner in accordance with
applicable regulations.
2. Dismantle the pump into its constituent parts.
3. Dispose of the pump parts in an environmentally friendly
manner in accordance with applicable regulations.
2.6.5 Disposal of Electrical and Electronic Scrap
►Dispose of electrical and electronic scrap in accordance with
applicable directives.
3 Design and Function
3.1 Principles of Design
Fig. 5 Principles of design of pumps illustrated using the FPE model
3.1.1 Pump Head (A)
Fig. 6Pumphead
Shaft Seal (12)
Two seal types are available for use:
– Single shaft seal
– Double shaft seal
With the double shaft seal, there are two additional connec-
tions for the sealing liquid on the pump casing. These con-
nections are not shown in the following figures.
APump head
BLantern
CElectric motor
11 Discharge line connection
12 Shaft seal
13 Impeller
14 Pump cover
15 Suction line connection
16 Pump casing
B
C
A
11
12
13
14
15
16

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8
Impeller (13)
Open impellers are standardly used in the FP pump series.
Pump Cover (14)
The connection for the suction line is located on the pump
cover.
Pump Casing (16)
The connection for the discharge line is located on the pump
casing. The impeller and the shaft seal are built into the pump
casing.
3.1.2 Lantern (B) and Electric Motor (C)
Fig. 7 Lantern and electric motor
Lantern (17)
The lantern is present in all models except the special motor.
The lantern connects the pump casing to the motor. Two
different versions are possible, depending on pump size:
– The pump casing is screwed to the lantern via a flange con-
nection.
– The pump casing is inserted into the lantern and mounted
with a clamp.
Models with lanterns:
– FPE and FP…V
–KF
An additional bearing for the pump shaft is located inside
the lantern with base.
–L
An additional bearing for the pump shaft is located inside
the lantern with base. The pump shaft is connected to the
motor via a coupling.
Electric Motor (19)
The following motor types can be mounted:
– IEC standard motor with drive side fixed bearing (A side),
feather key and shaft pin of the following types:
– IM B3: model with base
– IM B5: model with flange
– IM B3/5: model with flange and base
With the IEC standard motor, a Fristam pump shaft is
clamped to the motor shaft pin.
–SpecialmotorwithFristam pump shaft
With the special motor, the Fristam pump shaft is already in-
tegrated and connected permanently to the motor.
3.2 Models
The model is indicated on the rating plate. See Chapter 2.4.4,
"Rating Plate," page 6.
The following are shown as examples:
– Lantern clamp-mounted
–Withoutenclosure
See Chapter 3.4, "Versions," page 9.
3.2.1 Model FP
Fig. 8ModelFP
3.2.2 Model FPE or FP…V
Fig. 9 Model FPE or FP...V
17 Lantern
18 Electrical connection
19 Electric motor
20 Pump shaft
17 18
19
20
Motor: Special motor
Design: Without lantern
Motor: IEC standard motor, model B3/B5
Design: With lantern

9
3.2.3 Model KF
Fig. 10 Model KF
3.2.4 Model L
Fig. 11 Model L
3.3 Pump Key
Fig. 12 Type designation example
3.4 Versions
Note: If the (optional) pump without motor is supplied, please
first read Chapter 11, "Appendix 2 – Assembly Instructions
(Optional)" on page 34.
4Transportation
4.1 Transportation
Transportation may only be performed by trained personnel.
The pump can be moved using an industrial truck or a crane.
Always move the pump in the installation condition.
4.1.1 Safety Instructions
►Danger of injury from falling or unsecured parts.
– Only use suitable means of conveyance and hoists. Infor-
mation on pump weight can be found on the pump's rat-
ing plate as well as in the “Order-Related Documents“in
the attached documents.
– Before moving the pump secure it to prevent it from tip-
ping over. Secure the pump to the pallet with tie-down
straps, or screw the pump to the pallet.
– Do not leave the pump in a raised position for longer
than necessary.
►Damage to pump by contamination, impact, or moisture.
– Remove the protective film just prior to installation.
– Remove the pipe fitting covers just prior to connection to
the pipes.
Motor: IEC standard motor, model B5
Design: Compact bearing support with base
Motor: IEC standard motor, model B3
Design: Bearing block with coupling, coupling
protection, base frame
21 Pump type
22 Supplementary character 1
23 Pump size
24 Supplementary character 2
(21) Pump Type
FP Special motor with extended motor shaft
FPE Attached pump shaft
FP...V Extended insert shaft as pump shaft
(22) Supplementary Character 1
SOpen impeller with large clearance to casing
RSemiopen impeller with large clearance to
cover
HHigh-pressure pump
XImpeller for high pressures
ZCasing with circulation line
21 23 2422
(24) Supplementary Character 2
A, B ,C ,D Versions; see Chapter 3.4, "Versions," page 9:
KF Compact bearing support with base
L1, L2, L3 Bearing block with coupling
VStainless steel lantern, double shaft seal,
ø75mm at lantern neck
HPump casing with heating jacket
hPump cover with heating jacket
Version Enclosure Spherical Cap
Legs
Motor Foot
AWith With Without
BWithout Without With
CWithout With Without
DWith Without With
Table 1 Versions

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10
4.1.2 Moving With Industrial Trucks
Preparation
►Ensure that the pump is adequately secured to the pallet.
Procedure
1. Pick up the pallet with the forks on the industrial truck.
2. Carefully move the pallet to the designated location and set
down.
Fig. 13 Moving with industrial truck
4.1.3 Moving With Crane
Falling Parts
Death from crushing, pinching of extremities, material damage.
►Do not lift the pump at the eyebolts on the motor and pump
casing to move because these eyebolts are not designed for
the total weight.
►Only use hoists that are designed for the total weight of the
pump.
►Ensure that the area below the pump is clear of people.
Swinging Parts
Crushing and serious injuries.
►Start and stop the crane with pump smoothly.
►Ensure that the danger zone of the pump is clear of people.
Auxiliary Equipment
Hoists: round slings tested in accordance with DIN EN 1492-1
and 1492-2
Preparation
►Remove load-securing devices.
Procedure
1. Wrap the round sling twice around the back end of the
motor. Do not lay over the fan shroud (see Fig. 14 Moving
with crane).
2. Lay the other end of the round sling between the lantern
and the pump casing. Do not lay the round sling over any
sharp edges or corners.
3. Guide both loops to the crane hook and rotate by 180° to en-
sure that the belt will not slip on the hook.
4. For double shaft seal:
Note: Round sling compresses sealing water tubes. Material
damage to double shaft seal.
►Do not lay the round sling on the sealing water tubes.
5. Position the center of gravity to ensure that the pump is lift-
ed horizontally.
6. Lift the pump.
.
Fig. 14 Moving with crane
5Storage
5.1 Safety Instructions
►Corrosion: Condensation can build up under a tarp and
destroy the pump.
– Ensure adequate ventilation.
5.2 Storage Conditions
►Store the pump as follows:
– Dry, in low humidity
– Protected against frost and heat, optimally at a tempera-
ture of 20°C to 25°C
– Ventilated
–Dust-free

11
5.3 Long-Term Storage
For a storage time of longer than six months, heed the
following:
►The shaft seals must be specially treated before long-term
storage:
–For single shaft seal
The impeller nut must be loosened so that the seal can
relax and the elastomers do not stick together.
–For double shaft seal
Remove the complete shaft seal and store separately to
prevent the elastomers from sticking together.
Information on the shaft seal can be found in the “Order-Re-
lated Documents“.
►All movable pump parts must be rotated every three
months.
5.3.1 Storage of Elastomers
Storage Conditions
– Storage temperature between +5°C and +20°C
– Relative air humidity below 70%
– No direct sunlight
– Deformation-free storage
5.4 Recommissioning
►After long-term storage and before commissioning, check
seals, bearings, and lubrication.
6Installation
6.1 Safety Instructions
►Danger of injury from falling parts.
– Wear safety shoes.
– Check load capacity and attachment of hoists.
►Danger of injury from unstable assembly.
– Tighten screws to the specified tightening torque (see
Chapter 10.1.1, "Tightening Torques for Screws and Nuts,"
page 28).
– Use a torque wrench or an impact driver with adjustable
torque.
►Material damage from swinging during adjustment of
spherical cap feet.
– Use spherical cap base plates.
6.2 Installation Location
For standard pumps, the installation location must meet the
following requirements:
– Nonexplosive atmosphere
– Dust-free environment
– Ambient temperature: –20°C to +40°C
– Moisture and salt contents in ambient air: 
The values are given in the motor supplier documentation. It
can be found in the attached documents.
– Foundation sized adequately for the pump weight
– Horizontal and level installation surface, adequate installa-
tion surface strength for pump mass
– Adequate clearance for maintenance work
– Adequate air supply for motor cooling
6.3 Reduction of Noise and Vibration
6.3.1 Primary Measures
►Operate the pump in the optimum working range.
– Do not starve the pump. Avoid throttling too much. Only
operate with a low flow rate if necessary for regulation
purposes.
– Do not operate with very high flow rates. Optionally in-
stall a flow controller in the discharge line.
– Operate the pump without cavitation (see Chapter 6.4.1,
"Installation of Pipes," page 12).
►Decouple the suction and discharge lines from vibrations.
–Supportlines.
– Align lines.
– Install vibration isolators.
6.3.2 Secondary Measures
►Take structural measures such as the following:
– Acoustic paneling
– Enclosure in housing
6.4 Pump Fixation
Models FP/FPE/FP...V
►Versions A and C:
Set up the pump on the spherical cap bearings and align.
►Versions B and D:
Screw the pump on the motor foot to the foundation.
Model KF
►Versions A and C:
Set up the pump on the spherical cap bearings and align.

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12
►Versions B and D:
Screw the pump on the compact bearing support with base
to the foundation.
Model L
►Versions A and C:
Set up the pump on the spherical cap bearings and align.
►Versions B and D:
Screw the pump on the base frame to the foundation.
Carriage (Optional)
1. Set up the pump at the installation location. Lock the locks
on the rollers (if present) or secure the carriage with chocks.
2. Ground the carriage to dissipate electrostatic charge.
3. Position hose line to ensure that it cannot be damaged.
6.4.1 Installation of Pipes
►Lay and connect pipes as follows:
– Keep the pipe resistance as low as possible: Avoid unnec-
essary installation of valves, elbows, and abrupt pipe
transitions.
Fig. 15 Pipe transitions
– Design pipe cross section so that no unnecessary pres-
sure losses or cavitation occurs in the suction area and so
that the condition
NPSHa> NPSHr
is fulfilled.
Verify this in the project planning stage.
– Install the suction lines in horizontal position or at a con-
stant dropping angle towards the pump unit. Rule out
the possibility of air pockets and dips in the pipes.
Fig. 16 Air pocket
Fig. 17 Dip in pipe
– Pipe bends upstream of suction connection: Heed mini-
mum clearance and minimum bend radius:
Fig. 18 Laying of the suction line
– Connect the pipes to the pump so that they are free of
tension and compression to ensure that no stresses are
applied to the pump.
– Secure pipes to ceilings, walls, or floor using pipe clamps.
– Align pipes flush with pump connections using a bracket.
6.5 Electrical Connection
Electrical connection may only be performed by a qualified
electrician.
1. Heed the connection values on the motor's rating plate. The
specified voltage must not be exceeded.
2. Connect the motor according to the circuit diagram in the
terminal box of the motor.
3. Protect cable feedthroughs against penetration by moisture.
4. Turn on the motor for 2 to 3 seconds. Compare the direction
of rotation of the motor fan wheel against the direction indi-
cated by the arrow on the pump head.
5. Reverse the polarity if necessary.
5 - 10 x D
R ≥ 2 x D
D

13
6.6 Connection of Sealing or Quenching Liquid
(Optional)
In versions with double shaft seal, the seal chamber must be
flushed with a sealing or quenching liquid.
►Use a suitable medium, e.g., water, as a sealing or quenching
liquid.
6.6.1 Installing the pipelines
1. Install and seal the supplied flushing tubes.
2. As a standard, the feed line should be fitted at the bottom
of the shaft seal.
3. As a standard, the return line should be fitted at the top of
the shaft seal.
Fig. 19 Installing the pipelines
4. Install the following valves into the pipelines:
– Install the sight glass in the return line.
6.7 Cleaning
Only use cleaning agents that comply with the hygiene
guidelines for the respective pumping medium.
1. Before sealing the pump ensure that there are no foreign
objects inside the pump or pipes.
2. Seal the pump.
3. Connect the pipes.
4. Thoroughly clean the pump and the pipe system before ini-
tial use.
7Operation
7.1 Safety Instructions
►Danger of burning: Pumping of hot media can cause the
pump to become very hot. Check the temperature before
touching the pump.
►Noise emissions: The A-weighted sound pressure level of the
pumps can be greater than 80 dBA. Always wear ear
protectors in the vicinity of the running pump.
►Danger of bursting: If the allowable pressure and
temperature ranges are exceeded, the pump may burst or
become leaky. The pressure and temperature ranges for the
pump must be complied with; see “Order-Related
Documents“in the attached documents.
►Danger of bursting: Cold extinguishing agents used to
extinguish a pump fire can cause the hot pump to burst. Do
not cool the pump down excessively when extinguishing the
fire.
►Pump running in reverse direction despite emergency shut-
off: If the pump is shut off using the emergency shut-off
function, it will run in reverse direction due to the pumping
medium in the discharge line. Install a check valve in the
discharge line.
►Destruction of shaft seal when pump runs in reverse
direction. Reverse running destroys the springs in the shaft
seal. Always operate the pump in the direction of rotation.
See Chapter 2.4.1, "Direction of Rotation," page 6.
7.2 Commencement of Operation
Damage to Shaft Seals
If the pump runs without a pumping medium, the mechanical
seal will be damaged.
►Ensure that the pumping medium always reaches the upper
edge of the outlet side before and during operation.
Damage to Double Shaft Seals
If the pump runs without a sealing medium, the shaft seal will
be damaged.
Ensure that during operation:
►The sealing liquid flows with the necessary pressure through
the double shaft seal.
The prescribed sealing fluid pressure is specified in the "Or-
der-related documents" in the sectional drawing of the shaft
seal. The "Order-related documents" are included in this op-
erating manual.
– Negative pressure in the seal chamber is not allowed.
If no pressure is noted in the "Sectional drawing of the shaft
seal", the following applies:
25 Return line
26 Inlet
25
26

/ / FP PUMP SERIES / / /
14
– A max. pressure of 0.2 bar is allowed for seals to which
sealing fluid is applied without pressure or which are
flushed.
►The temperature of the sealing liquid is maintained at
T < 70 °C.
1. Open the valve in the suction line.
2. Close the valve in the discharge line.
3. Fill the pump and the suction line up to the upper edge of
the pump with pumping medium. Allow any air pockets that
are present to escape.
4. Turn on the motor. The pump now pumps against the closed
valve in the discharge line. This will limit the starting current.
5. Slowly open the valve in the discharge line and adjust to the
working point.
7.3 Monitoring of Operation
During operation heed the following points:
►Damage to shaft seal: Regulation of the pump output via the
suction-side valve can lead to damage of the pump and the
shaft seals. Regulate the pump output only by means of the
discharge-side valve.
►Damage to pumping medium: If during operation the valve
in the discharge line is closed abruptly or for a long period of
time, water hammers can occur in the pump and lead to
damage to the pump and/or the pumping medium. During
operation do not close the valve in the discharge line
abruptly or for a long period of time.
►Damage to pump: Exceeding of the output can lead to
damage of the pump and the shaft seals. Do not exceed the
maximum speed of 3,600 rpm.
►Damage to motor during operation with frequency
converter: If the speed is too low, the motor will overheat. 
Please refer to the motor supplier documentation in the
attached documents.
7.4 Stopping of Operation
1. Turn off the motor.
2. Close the valve in the suction line to prevent dry running of
the pump.
3. Close the valve in the discharge line.
7.5 Pump Decommissioning
1. Turn off the motor.
2. Close the valve in the suction line.
3. Close the valve in the discharge line.
4. De-energize the pump.
5. Empty the pump.
6. Clean the pump.
7. Dry the pump.
8. Protect the interior of the pump from moisture, e.g., with sili-
ca gel.
9. Seal the pipe connections with caps to prevent penetration
of dirt and foreign objects.
10. Please see Chapter 5, "Storage," page 10 for additional steps.
7.6 Cleaning in Place
7.6.1 CIP Process
The FP series pumps are suitable for the CIP (Cleaning In Place)
process. The following guidelines apply to the CIP process:
Example of a Cleaning Cycle
1. Perform preliminary flush with water.
2. Perform caustic flush with lye (NaOH; see Table 2 CIP clean-
ing).
3. Perform intermediate flush with water.
4. Perform acid flush with nitric acid (HNO3; see Table 2 CIP
cleaning).
5. Flush with water.
The pump's differential pressure should be 2–3 bar so that
adequate flow rates are reached.
If values deviate from these specifications, please contact
Fristam.
7.6.2 SIP Process
The FP series pumps can only be used with the SIP (Sterilization
In Place) process with the prior approval of Fristam.
Suitability depends on the selected elastomers.
The maximum process temperature is 145°C.
In ATEX operation, temperatures might deviate, see
supplementary ATEX manual, "Temperature limits".
8Faults
For information on faults, possible causes, and remedies, please
see Chapter 10.3, "Troubleshooting Table," page 29.
Medium Process Temperature [°C]
NaOH (approx. 1%–2%) 80–85
HNO3 (approx. 1%) 60–65
Table 2 CIP cleaning

15
8.1 Safety Instructions
►Danger of burning: Pumping of hot media can cause the
pump to become very hot. Check the temperature before
touching the pump.
►Pump running in reverse direction despite emergency shut-
off: If the pump is shut off using the emergency shut-off
function, it can continue to run in reverse direction due to
the pumping medium in the discharge line. Install a check
valve.
9 Maintenance
For information on maintenance intervals, please see
Chapter 10.2, "Maintenance Intervals1," page 28.
9.1 Safety Instructions
►Rotating parts: Danger of injury. Before removing the
coupling guard and guard plate, turn off the pump motor
and prevent it from being able to be turned on accidentally.
►Danger of burning: Pumping of hot media can cause the
pump to become very hot. Check the temperature before
touching the pump.
►Electric shock: Liquids flowing through the system result in
buildup of electrostatic charge. Ground the pipes and the
pump.
►Uncontrolled outflow of liquids: Before maintenance or
adjustment of the pump:
– Close the suction and discharge valves in front of and be-
hind the pump.
– Block off the sealing or quenching liquid line.
►Leaking liquids: Acid burns and contamination. Before
opening the pump completely empty the pump casing.
►Tension cracks: Do not rapidly cool the pump. Material
damage from scratching of polished surfaces. For a polished
surface, use a copper socket wrench socket.
9.2 Replacement Parts
►Use of replacement parts that are not approved by Fristam
Pumpen KG (GMBH & Co.) can lead to serious personal injury
and material damage. If you have any questions regarding
approved replacement parts, please contact Fristam.
►Fristam registers all shipped pumps. For ordering
replacement parts from Fristam, you require the following
information:
Serial number: see
– rating plate or
– number stamped into pump casing.
9.3 Inspection of Sealing and Quenching Liq-
uid (Optional)
For pumps equipped for "locking system" or "quenching
system," the sealing liquid head must be checked daily.
►Check the sealing liquid head and compare with the
specified value.
The specified value can be found in the Order-Related Docu-
ments on the "Sectional Drawing" of the shaft seal. The Order-
Related Documents are attached to this operator's manual.
►The sealing liquid is heated by hot pumping medium and by
operation of the pump.
Ensure that the temperature of the sealing liquid is T < 70 °C
during operation.
9.4 Lubrication of Motor Bearings
►Lubricate the motor bearings in accordance with the motor
manufacturer's specifications (see "Motor Supplier
Documentation").
9.5 Lubrication of Shaft Bearing
9.5.1 Models FP, FPE and FP…V
The models FP, FPE, and FP…V do not have additional shaft
bearings, and hence no shaft bearing lubrication is necessary.
9.5.2 Models L 2, L 3/L3V and L 4V
For the models L 2, L 3/L3V, and L 4V, the oil must be changed at
regular intervals.
1. Turn on the motor and let it run until the normal operating
temperature is reached.
2. Turn off the motor and prevent it from being able to be
turned on accidentally.
3. Place a suitable oil collection container under the oil drain
plug.
4. Caution! Danger of burning from hot oil.
►Wear suitable protective gloves.
►Loosen and remove the oil drain plug.
5. Drain the oil completely and dispose of oil in accordance
with local regulations.
6. Clean and remount the oil drain plug and seal.
7. Fill with new oil. We recommended using the: SAE 15W40 oil
type. Alternatively, use an equivalent brand of lubricant of
similar quality and viscosity. For the required amount, please
see Table 3 Oil volumes.
Type Oil Volume
L 2 1 liter
L 3/L3V 3 liters
Table 3 Oil volumes

/ / FP PUMP SERIES / / /
16
9.5.3 Model L1
►Do not relubricate the deep groove ball bearing, but replace
it completely.
–At constant operating conditions, the raising of power con-
sumption, noise level or vibration indicates that wear has oc-
curred. Replace the deep groove ball bearing consequently.
Prerequisites
– Pump head has been removed.
– Motor with coupling has been removed.
Procedure
Fig. 20 Removing bearing block cover
1. Take the cover (27) off of the bearing block (28).
Fig. 21 Model L1, pump shaft, pump-side
2. Remove the bearing cap (29) on the pump side.
Fig. 22 Model L1, pump shaft, motor-side
3. Remove the bearing cap (30) on the motor side.
4. Force out the shaft in the direction of the pump head.
Note: All parts that are gray in the above two figures remain
on the shaft.
5. Clean the surfaces of all parts and check for damage. Replace
if necessary.
6. Relubricate the angular contact ball bearing. We recom-
mended using: JAX Halo-Guard FG-2 bearing grease or alter-
natively a white NSF H1 grease. Alternatively, use an equiva-
lent brand of lubricant of similar quality and viscosity. See
Table 4 Bearing grease amount: model L1.
7. Press the pump shaft with the bearing into the bearing
block.
8. Mount the bearing cap on the motor side.
9. Mount the bearing cap on the pump side.
10. Mount the cover (27).
9.5.4 Model KF
►Do not relubricate the deep groove ball bearing, but replace
it completely.
–At constant operating conditions, the raising of power con-
sumption, noise level or vibration indicates that wear has oc-
curred. Replace the deep groove ball bearing consequently.
►Grease the cylindrical roller bearing with bearing grease.
Prerequisites
– Pump head has been removed.
– Motor has been removed.
Procedure
1. Remove the bearing cap (33).
2. Force out the pump shaft (31) with the bearing toward the
motor side.
L 4V 13 liters
Model Bearing Grease Amount
L1 10 g
Table 4 Bearing grease amount: model L1
Type Oil Volume
Table 3 Oil volumes
27
28
29
Model Bearing Grease Amount
KF 1 20 g
KF 2 40 g
KF 3 60 g
Table 5 Bearing grease amounts: model KF
30

17
Fig. 23 Model KF, shaft bearing
3. Remove the bearing nut (34) and the guard plate (35).
4. Remove the outer race of the cylindrical roller bearing.
Note: All parts that are gray in the above figure remain on
the shaft.
5. Clean the surfaces of all parts and check for damage. Replace
if necessary.
6. Relubricate the cylindrical roller bearing (31). We recom-
mended using: JAX Halo-Guard FG-2 bearing grease or alter-
natively a white NSF H1 grease. Alternatively, use an equiva-
lent brand of lubricant of similar quality and viscosity. See
Table 5 Bearing grease amounts: model KF.
7. Put the outer race back onto the shaft.
8. Place the guard plate and the bearing nut on the shaft, and
tighten the bearing nut.
9. Press the pump shaft with the bearing back into the lantern.
10. Mount the bearing cap (33).
9.6 Motor Replacement
Special Motor
1. Turn off the motor and prevent it from being able to be
turned on accidentally.
2. Remove the pump head (see Chapter 9.8, " Pump Head Re-
moval," page 18).
3. Replace the special motor.
4. Replace the mechanical seal if necessary, and mount the
pump head (see Chapter 9.10, "Pump Head Attachment,"
page 20).
IEC Standard Motor for FPE and FP...V
1. Turn off the motor and prevent it from being able to be
turned on accidentally.
2. Remove the pump head (see Chapter 9.8, " Pump Head Re-
moval," page 18).
3. Take the lantern off of the motor.
4. Remove the shaft.
5. Replace the motor.
6. Mount the shaft and align (see Chapter 9.11, "Models FPE and
FP…V: Mounting and Alignment of the Pump Shaft," page 27).
7. Mount the lantern.
8. Only for flange connection: Check the clearance if necessary
(see Chapter 9.9, "Checking of the Clearances," page 18).
9. Replace the mechanical seal, and mount the pump head (see
Chapter 9.10, "Pump Head Attachment," page 20).
IEC Standard Motor for Model KF
1. Turn off the motor and prevent it from being able to be
turned on accidentally.
2. Take the motor off of the compact bearing support with
base.
3. Dispose of the motor in an environmentally friendly manner.
See Chapter 2.6.5, "Disposal of Electrical and Electronic Scrap,"
page 7.
4. Insert the key of the old motor into the new motor.
5. Screw the motor to the compact bearing support with base.
IEC Standard Motor for Model L
1. Turn off the motor and prevent it from being able to be
turned on accidentally.
2. Remove the coupling guard.
3. Detach the motor from the base frame or the foundation.
4. Take the coupling parts off of the motor.
5. Dispose of the motor in an environmentally friendly manner.
See Chapter 2.6.5, "Disposal of Electrical and Electronic Scrap,"
page 7.
6. Mount the coupling parts onto the replacement motor (pro-
ceed as described in Chapter 9.12, "Model L: Coupling Replace-
ment," page 27 to replace the coupling).
7. Place the replacement motor on the base frame or the foun-
dation.
8. Check the parallel and angular misalignment of the shafts.
Fig. 24 Parallel misalignment
Fig. 25 Angular misalignment
9. Minimize deviations from the angular and parallel misalign-
ment. Realign the shafts if necessary.
10. Screw the motor to the base frame or the foundation.
11. Mount the coupling guard.
35
33
32
34
31

/ / FP PUMP SERIES / / /
18
9.7 Shaft Seal Replacement
The shaft seal must be replaced if:
– Pumping medium or sealing or quenching liquid flows out of
the pump on the atmosphere side.
– Sealing liquid leaks into the pumping medium.
Procedure
1. Remove the pump head (see Chapter 9.8, " Pump Head
Removal," page 18).
2. Replace the mechanical seal, and mount the pump head (see
Chapter 9.10, "Pump Head Attachment," page 20). Perform the
following tasks according to the given shaft seal:
►Preassemble the seals on the shaft.
►Preassemble the pump casing.
►Mount the pump casing on the lantern.
►Mount the mechanical seal.
►Mount the impeller.
►Screw on the pump cover.
9.8 Pump Head Removal
9.8.1 Preparation
1. Turn off the motor and prevent it from being able to be
turned on accidentally.
2. Close the valve in the discharge line.
3. Close the valve in the suction line.
4. Completely empty the pump.
9.8.2 Procedure
Fig. 26 Pump cover
1. Loosen the nuts (36) on the pump cover.
2. Remove the nuts, the washers, the pump cover (37), and the
cover seal (38).
Fig. 27 Impeller
3. WARNING: Risk of injury when stopping the impeller by
hand. Block the impeller (42) with a wooden wedge.
Loosen the impeller nut (39), and remove with the O-ring
(40).
4. Take the snap ring (41), the impeller (42), and the key (43)
off of the shaft.
5. Only for pumps with double shaft seals: Remove the flushing
tubes for sealing or quenching liquid.
TIP: For large pump casings, there is an M 12 thread on the
top of the casing. An eyebolt can be screwed into the thread
for suspension of the pump head from a crane.
6. Pull the pump head with the pump-side shaft seal off of the
shaft as follows:
6a. Clamp connection variant
1. Loosen the clamp bolt.
2. Slightly spread the clamp connection with a wedge.
3. Pull the pump casing out of the clamp connection.
6b. Flange connection variant
1. Loosen the fastening screws on the flange and remove.
2. Remove the pump casing.
7. Take the shaft seal out of the pump casing.
9.9 Checking of the Clearances
The position of the impeller is determined by the position on
the shaft. The clearances are set through the position of the
pump casing with respect to that of the impeller.
Note: For clearances, refer to table 6-8.
Prerequisites
– Pump casing is connected firmly to the lantern.
– Pump cover has been removed.
– The impeller has been mounted and the impeller nut tight-
ened.
36
37
38
39 40 41 42
43

19
9.9.1 Measurement of the Impeller–Pump Cover Clear-
ance
1. Measure the height H of the pump cover (44) using vernier
calipers.
Fig. 28 Height
2. Measure the clearance A between the pump casing (45) and
the impeller (46) using vernier calipers.
Fig. 29 Clearance
3. Calculate the clearance (clearance = A–H).
4. Adjust the clearance to the values specified in Table 6 , "Stan-
dard Clearence," page 20, Table 7 , "Clearances in model S,"
page 20 or Table 8 , "Clearances in model R," page 20 respec-
tively.
9.9.2 Measurement of the Impeller Casing Clearance /
Sizes 711/712 - 1231/1232
1. Measure the clearance between the impeller and the casing
using a leaf feeler gauge (Fig. 30, "Impeller–casing clearance,"
page 19).
2. Adjust the clearance to the values specified in Table 6 , "Stan-
dard Clearence," page 20, Table 7 , "Clearances in model S,"
page 20 or Table 8 , "Clearances in model R," page 20 respec-
tively.
Fig. 30 Impeller–casing clearance
9.9.3 Measurement of the Impeller–Casing Clearance
1. Measure dimension B between the shaft shoulder and the
pump casing (47) with a leaf feeler gauge.
Fig. 31 Measuring the clearance between shaft shoulder and pump casing
2. Measure height F of the stationary bushing (48) with a sli-
ding calliper.
3. Calculate the clearance (= F - B).
Fig. 32 Measuring the stationary bushing
H
44
A
45
46
B
47
F
48

/ / FP PUMP SERIES / / /
20
4. Adjust the clearance to the values specified in Table 6 ,
"Standard Clearence," page 20, Table 7 , "Clearances in model
S," page 20 or Table 8 , "Clearances in model R," page 20 re-
spectively.
Clearance too large
►If the clearance between the housing and the impeller is too
large, rework the stationary bushing.
Grinding stationary bushing to size
1. Remove the stationary bushing from the shaft sealing kit.
The location of the stationary bushing is indicated in the
"Sectional drawing of shaft seal" in the appendix of the "Order
documents".
2. Grind the stationary bushing to the required size.
3. Re-install the stationary bushing.
4. Slide the key and the impeller onto the shaft and tighten
them with the impeller nut.
5. Measure the clearance again.
►If the code "S" or "R" (additional letter 1) is printed on the
rating plate, adjust the clearance to the values specified in
Table 7 , "Clearances in model S," page 20 or Table 8 ,
"Clearances in model R," page 20 respectively. (Position of
additional letter 1: See Chapter 3.3, "Pump Key," page 9)
9.10 Pump Head Attachment
The pump assembly is dependent on the respective pump size
and model as well as the respective shaft seal (see “Order-
Related Documents“) in the attached documents.
Incorrect Elastomers
Pump leakiness.
►Ensure that the elastomers are appropriate for the condition
of the pumping medium. Please refer to the “Order-Related
Documents“.
Preparation
►Clean all pump parts and check for damage and accuracy of
fit.
►If necessary, rework or replace pump parts.
►Assemble in clean conditions, carefully, and using little force.
The seals could be permanently deformed or break in part.
►Replace all O-rings.
►To reduce friction, wet the O-rings and the sliding faces with
water, alcohol, or silicone grease.
►Clean the sealing surfaces of the mechanical seals with a
degreaser, e.g., OKS 2610 Universal Cleaner. Do not allow the
sealing surfaces to come into contact with oil or grease and
do not touch with your fingers afterwards.
Tip: The joint retaining compound "Euro Lock A64.80," e.g., is suit-
able for gluing in bearings and bushings.
Tip: The screw retaining compound "Euro Lock A24.10," e.g., is suit-
able for gluing in set screws.
Pump Size Clearances in mm
Impeller–Pump Cover Impeller–Casing
711/712 0.5 0.5
721/722 0.5 0.7
741/742 0.5 0.5
751/752 1.0 1.0
3401/3402 0.5 0.5
3521/3522 0.5 0.5
3531/3532 0.5 1.5
3541/3542 1.0 1.0
3451/3452 1.0 1.0
3551/3552 1.0 1.0
1151/1152 2.0 2.0
1231/1232 -1.5
1241/1242 -1,0
1251/1252 -1.5
Table 6 Standard Clearence
Pump Size Clearance FPS in mm
Impeller / pump cover Impeller / casing
(calculated)
711/712 0,5 (5,5)
721/722 0,5 (5,5)
741/742 0,5 (5,5)
751/752 1.0 (5,0)
Table 7 Clearances in model S
3521/3522 0,5 (10,5)
3531/3532 0,5 (11)
3541/3542 1,0 (11)
3551/3552 1,0 (11)
Pump Size Clearance FPR in mm
Impeller / pump cover
(calculated)
Impeller / casing
3521/3522 (10,5) 0,5
3531/3532 (11) 0,5
3541/3542 (11) 1,0
3551/3552 (11) 1,0
Table 8 Clearances in model R
Pump Size Clearance FPS in mm
Impeller / pump cover Impeller / casing
(calculated)
Table 7 Clearances in model S