schmalenberger Fluvo WK Series Product guide

Centrifugal pump
Type WK/SMK
Operating / Assembly manual
Translation of the original Entwurf 27.10
.2020
27220 - E

Operating / Assembly manual
2 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
EU-Declaration of Conformity
Manufacturer:
Schmalenberger GmbH + Co. KG Strömungstechnologie
Im Schelmen 9-11
D-72072 Tübingen / Germany
The manufacturer hereby declares that the product:
Centrifugal pump type:
WK, WK-Vario, SMK (identification numbers: all)
Serial number range: 2018000001 - 2023999999
has been manufactured in accordance with the following directives:
Directive 2006/42/EC "Machinery"
Harmonised standards that were used:
EN 809:1998+A1:2009+AC:2010, EN ISO 12100:2010, EN 60034-1:2010, EN 60034-5:2001/A1:2007,
EN 60034-30-1:2014, EN 61800-3:2018
Authorised representative for the compilation of the technical documentation:
Robin Krauß
Quality assurance
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
Tel: [phone]
The EU Declaration of Conformity has been issued:
Tübingen, 06. July 2020
Thomas Merkle
Head of Development & Design
Schmalenberger GmbH + Co. KG

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
3
Table of contens
1. General Information ....................................................................................................... 5
1.1. User Information ..................................................................................................................... 5
1.2. Proper Use ............................................................................................................................... 5
1.3. Other Applicable Documents .................................................................................................. 5
1.4. Technical Data / Spezification ................................................................................................. 5
1.5. Technical Data WK5013 ........................................................................................................... 6
1.6. Technical Data WK6013 ........................................................................................................... 7
1.7. Technical Data SMK-5013 ........................................................................................................ 8
2. Safety Instructions .......................................................................................................... 9
2.1. General Information ................................................................................................................ 9
2.2. Zsings and Symbols .................................................................................................................. 9
2.3. Responsibilities of the Operator .............................................................................................. 9
2.4. Safety Instructions for Installation .......................................................................................... 9
2.5. Safety Instructions for Connection and Commissioning ....................................................... 10
2.6. Safety Instructions for Maintenance and Repair .................................................................. 10
2.7. Description of the Device ...................................................................................................... 10
3. Transport, Storage and Assembly .................................................................................. 11
3.1. Transport and Storage ........................................................................................................... 11
3.2. Unpacking, Cleaning and Assembly ....................................................................................... 12
3.3. Setting up and Connecting .................................................................................................... 13
3.4. Connecting the Pipelines ....................................................................................................... 13
4. Electrical Connection ..................................................................................................... 16
4.1. Electrical Connection - General ............................................................................................. 16
4.2. Elec trical Connection - Pump Type WK ................................................................................ 16
5. Device Units .................................................................................................................. 18
5.1. Pump Kit Type WK ................................................................................................................. 18
6. Assembly ...................................................................................................................... 18
6.1. Assembly - General ................................................................................................................ 18
6.2. Assembly of the Control Box ................................................................................................. 19
6.3. Assembly of WK-Vario Combination with Massage Jets or Water Curtain........................... 20
6.4. Flow Losses - Pipes and Elements ......................................................................................... 20
7. Operating the Centrifugal Pump .................................................................................... 22
7.1. Initial Commissioning ............................................................................................................ 22
7.2. Operation ............................................................................................................................... 22
7.3. Notices of Incorrect Operation .............................................................................................. 23
7.4. Shutdownn ............................................................................................................................. 23
7.5. Emptying the Pump ............................................................................................................... 24
8. Troubleshooting ............................................................................................................ 24
8.1. Type WK ................................................................................................................................. 24
8.2. Typ SMK ................................................................................................................................. 25
9. Maintenance / Repair ................................................................................................... 26
9.1. Generel Information .............................................................................................................. 26
9.2. Maintenance / Inspection ..................................................................................................... 27

Operating / Assembly manual
4 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
9.3. Repair ..................................................................................................................................... 27
9.4. Die sassembly / Dismantling the Pump ................................................................................. 28
10. Appendix....................................................................................................................... 29
10.1. Decommissioning / Placing in Storage / Preservation ....................................................... 29
10.2. Disposal ............................................................................................................................... 30
10.3. Important Information ....................................................................................................... 30
11. Spare parts .................................................................................................................... 31
11.1. Explosion Drawing type WK5013 ....................................................................................... 31
11.2. Explosion Drawing type WK6013 ....................................................................................... 32
11.3. Explosion Drawing type WK6513 ....................................................................................... 33
11.4. Explosion Drawing type WK6013 Vario .............................................................................. 34
11.5. Explosion Drawing type SMK- 5013 .................................................................................... 35

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
5
1. General Information
1.1. User Information
The Operator's Manual makes it easier to make full use of the device and its range of options. It contains
important information for operating the centrifugal pump (pump) safely, properly and economically.
Observing the instructions helps to avoid dangers, avoid repair costs and downtimes, and increase the
reliability and service life of the centrifugal pump. The Operator's Manual does not take into
consideration requirements for specific location. The operator is responsible for observing these
requirements. The pump rating plate indicates the series and frame size, the most important operating
data and the factory number.
Please specify this information if you have questions, a subsequent order, or especially when ordering
spare parts
1.2. Proper Use
The pump is intended exclusively for use in accordance with the original specification. It must only be
operated with the values defined in the Technical Documentation regarding pumping medium, pumping
flow, speed, density, pressure, temperature, motor power and all other data defined in the specification.
Do not use the pump for any other type of application. Do not make any changes to the pump. This may
result in additional risks and property damage,
for which the manufacturer shall not be liable!
The manufacturer must always be consulted regarding adjustments for a new intended use. We will be
pleased to determine what adjustments would be required for the new intended use.
Proper use also includes observing the Operator's Manual.
Residual risk
The centrifugal pump system is built according to the state of the art and recognised safety engineering
rules. Nevertheless, danger to life and limb of the operator or third parties, or damage to other property
may arise during use. The owner / operator must therefore take care to heed the safety instructions in
this Operator's Manual.
1.3. Other Applicable Documents
Each centrifugal pump has various documents which belong together with the Technical Documentation
for the centrifugal pump. They are:
 The Operator's Manual for the centrifugal pump
 The Operator's Manual for the drive
 The Operator's Manual for the accessories listed in the specification
 Acceptance reports from TÜV, etc.
 Test run report / performance run report
 Assembly drawing (dimension sheet)
 Declaration of Conformity / Manufacturer’s Declaration
 Specification with all information
Not all the documents named above exist or are included in every case. Observe the information in the
specification in this regard.
1.4. Technical Data / Spezification
The specification of the delivered centrifugal pump is the most important document for every Operator's
Manual. It contains a summary of all factual and technical data for the centrifugal pump. It is the
centrifugal pump's "birth certificate" and must be treated assuch. The confirmation of order together
with the delivery slip can be used as a replacement as proof of technical data.

Operating / Assembly manual
6 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
1.5. Technical Data WK5013
Pump connection
Pressure end
DN50 | G2“
Suction end
DN65 | G2½“
Sound level
[db(A)]
66
Weight
[kg]
38
45 [FU]
Rated values of motor
Speed
[min
-1
]
2.900
Nominal
current
[A]
5,6
Voltage
[V]
230
400Y
230Δ
690Y
400Δ
Frequenz
[Hz]
50
Output
[kW]
2,2 3,0 4,0
Limit values of the pump
Pressure P
max
[bar]
1,6 1,9 2,1
Flow rate Q
max
[m³/h]
60 70
Typ
1)
Alternating current
WK 5013/2 – 2,2 WS
1)
WK 5013/2 – 3,0 WK 5013/2 – 4,0
+10
WK
5013
Bearing carriers

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
7
1.6. Technical Data WK6013
Pump connection
Pressure end
DN50 | G2“ DN65
| G2½“
Suction end
DN65 | G2½“ DN80
| G3“
Sound level
[db(A)]
65
+2
65
+2
65
+2
67
+2
67
+2
67
+2
70
+2
71
+2
Weight
[kg]
34,5
41,5 [FU]
34,5 34,5
41,5 [FU]
34,5
38
45 [FU]
39,5
46,5 [FU]
Rated values of motor
Speed
[min
-1
]
2.900
Nominal
current
[A]
1,7
2,95 2,86 4,95
9,5 3,6
6,25 11,5 5,75
I
max
6,6[Y400V]
10
4,3 7,5
I
max
8,5[
Δ
400V]
Voltage
[V]
400Y
230Δ
400Y
230Δ
230
400Y
230Δ
230 230
400Y
230Δ
690Y
400Δ
Frequenz
[Hz]
50
Output
[kW]
0,75
1,5 1,5 1,9 1,9 2,2 3,0 4,0
Limit values of the pump
Pressure P
max
[bar]
1,0 1,2 1,2 1,4 1,4 1,9 2,0
Flow rate Q
max
[m³/h]
24 42 42 48 48 60 96
Typ
1)
Alternating current
WK 6013/2 - 0,75 WK 6013/2 – 1,5 WK 6013/2 - 1,5 WS
1)
WK 6013/2 - 1,9 WK 6013/2 - 1,9 WS
1)
WK 6013/2 – 2,2 WS
1)
WK 6013/2 – 3,0 WK 6513/2 – 4,0

Operating / Assembly manual
8 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
1.7. Technical Data SMK-5013
Pump connection
Pressure end
DN50 | G2“
Suction end
DN65 | G2½“
Sound level
[db(A)]
68
+2
68
+2
70
+2
70
+2
73
+2
73
+2
Weight
[kg]
34,5
41,5 [FU]
34,5 34,5
41,5 [FU]
34,5
38
45 [FU]
39,5
46,5 [FU]
Rated values of motor
Speed
[min
-1
]
2.900
Nominal
current
[A]
2,86 4,95
9,5 3,6
6,25 11,5 5,75
I
max
6,6[Y400V]
10
4,3 7,5
I
max
8,5[
Δ
400V]
Voltage
[V]
400Y
230Δ
230
400Y
230Δ
230
400Y
230Δ
690Y
400Δ
Frequenz
[Hz]
50
Output
[kW]
1,5 1,5 1,9 1,9 3,0 4,0
Limit values of the pump
Pressure P
max
[bar]
1,2 1,2 1,4 1,4 2,0 2,1
Flow rate Q
max
[m³/h]
42 42 48 48 58 62
Typ
1)
Alternating current
SMK 5013/2 - 1,5 SMK 5013/2 - 1,5 WS
1)
SMK 5013/2 - 1,9 SMK 5013/2 - 1,9 WS
1)
SMK 5013/2 – 3,0 SMK 5013/2 – 4,0

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
9
2. Safety Instructions
2.1. General Information
 Make certain before commissioning that the operating personnel have read and understood the
Operator's Manual. It is the owner rather than the operator who is responsible for safety!
 Make certain the safety requirements and laws for the use of pumps which apply to the operating
company and/or country in which the system is operated are observed.
 All parts that come in contact with medium are resistant up to a salt content of 0.75% (4500 mg/l
Cl¯). If higher concentrations of salt are present, please contact the manufacturer.
 Use the pump only when it is in flawless condition technically and according to its intended
purpose. Be conscious of safety and dangers and observe all the instructions of this Operator’s
Manual!
 Eliminate all malfunctions that could have a detrimental effect on safety immediately.
2.2. Zsings and Symbols
We warn you of sources of danger in this Operator's Manual through corresponding notices. The use of
symbols is designed to direct your attention at these notices.
Caution! Risk of injury! / Risk of damage!
This symbol warns you of dangers due to mechanical effects.
Caution! Danger of death!
This symbol warns you of dangers due to electrical current.
Notices placed directly on the pump, such as the arrow for direction of rotation, must always be
observed and must be maintained in legible condition.
2.3. Responsibilities of the Operator
 The owner/operator must take care to ensure,
o that the Operator’s Manual is always available for operating personnel
o That the safety instructions in this Operator's Manual are observed
2.4. Safety Instructions for Installation
 The centrifugal pump is delivered without a contact safety device. The required contact safety
device (for example when pumping hot liquids above 60°C) must be provided by the system
manufacturer when the pump is installed in the system.
 If the pump is installed in a shaft, the shaft must have sufficient ventilation (motor cooling) and
an adequate possibility for leakage water to flow off (at least DN 40).
 There must not be any conducting connection between the metallic components of the motor
and a liquid.

Operating / Assembly manual
10 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
2.5. Safety Instructions for Connection and Commissioning
 Electrical equipment must only be installed and serviced by qualified personnel in accordance
with VDE 0105 and IEC 364.
Caution! Electrical shock!
Turn off the mains power voltage before starting work! Protect against unauthorised
switching on!
 The pump must only be operated with an FI circuit-breaker.
 The information on the nameplate and the conditions for electrical connection must match.
 Before turning on the pump or placing it in operation, make certain no one can be endangered
by the pump starting up!
The centrifugal pump must be stopped immediately if any abnormal electrical voltages,
vibrations, temperatures, noises, leaks, or other faults occur.
2.6. Safety Instructions for Maintenance and Repair
 Only persons with training as a mechanic and corresponding knowledge are permitted to perform
maintenance and repair work on the pump.
 If liquids are pumped that can cause effects detrimental to health in any way, suitable measures
must be taken (rinsing, cleaning, washing) to bring the wetted surfaces of the pump to a condition
to ensure handling does not entail any dangers.
Tasks that are not described in this Operator's Manual are reserved for the manufacturer's service
personnel.
2.7. Description of the Device
 The pump meets the requirements of VDE regulations.
 The electric motor and plastic pump through which water flows are electrically separated.
 The electric motor corresponds to protection type IP 54/55.
 The centrifugal pump overall corresponds to protection rating I.
Potential danger zones of the centrifugal pump are:
 The suction connection (strong suction effect)
 The pressure connection (high discharge speed of objects that may have been sucked in)
 The pump housing (heating)

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
11
3. Transport, Storage and Assembly
3.1. Transport and Storage
3.1.1. Transport
Centrifugal pumps must be transported lying down.
The lifting lugs on the motor are only designed for the weight of the motor alone. A unit consisting of a
motor and a pump must be attached on both the motor and pump sides.
If necessary, the position of the centre of gravity is identified on the pump unit itself and on the
packaging and the positions for inserting lifting equipment are marked.
Fig. 1 Example of slinging for lifting
Caution! Risk of injury!
Use only suitable lifting equipment and load holding devices which are in perfect working
order and have adequate load-bearing capacity!
Never work or stand under suspended loads.
3.1.2. Storage
 Temporary storage
Even for temporary storage of short duration, store in a dry, well ventilated location free of
vibration on wooden supports at a temperature that is as constant as possible.
 Unsuitable storage
If storage conditions are unsuitable (for example high relative humidity), or if the pump will be in
storage for longer than 6 weeks, the pump housing must be filled with oil (see chapter 3.1.3
Preservation).
 Storage for extended duration
If the storage time exceeds 2 years, the roller bearings in the motor must be regreased or
completely replaced. Before initial commissioning and after an extended down time, or after
installation of a new mechanical seal, always check for smooth operation (see chapter 10.1.3
Recommissioning).

Operating / Assembly manual
12 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
3.1.3. Presservation
The centrifugal pumps we deliver are provided with preservation according to the storage time specified
by the manufacturer. This preservation must be removed before commissioning; see chapter 3.2.2
Cleaning.
If the pump will be taken out of operation for an extended time or if the storage time originally planned
before commissioning will be considerably exceeded, preservation should be performed as corrosion
protection. The procedure to follow is described in detail in chapter 10.1 Decommissioning / Placing in
Storage / Preservation.
3.2. Unpacking, Cleaning and Assembly
3.2.1. Unpacking
The centrifugal pump is secured on a pallet with bands for transport. For transport over extended
distances it is packed in cases or crates. After the retaining bands are loosened, lift the centrifugal pump
out of the packaging with auxiliary equipment (lifting tackle). Follow the instructions in chapter 3.1.1
Transport.
3.2.2. Cleaning
Various measures are provided for protection against transport damage or corrosion. Find out which
ones have been selected for your centrifugal pump.
1. Cover plates on the connections
2. Shaft protection, for delivery without motor
3. Protective paint on bare metal parts
Before set-up or installation of the centrifugal pump, these protective devices must be removed. No
contamination can be allowed to remain inside the pump!
Important:
Depending on the pumping medium, the inside of the pump must be cleaned of oil residue. Use a
cleaning agent to do this that will not damage the mechanical seal or the pump material. Make certain
the pump is carefully dried after cleaning. Suitable cleaning agents include rectified spirits, Ritzol 155 or
suds with a high alkaline content. If steam cleaners are used, allow the solvent to act first.
If possible do not use steam cleaners. If you do, make certain not to damage the electric motor and
bearings during use.
3.2.3. Assembly
The centrifugal pump generally comes premounted and is therefore ready for delivery.
In special cases the centrifugal pump is delivered without a drive motor. Connect the drive to the
centrifugal pump before the pump is mounted in the system.
Note:
Check to ensure the centrifugal pump is running easily and freely before starting assembly.

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
13
Other external accessories such as air chambers, etc., that are not premounted on the centrifugal pump
in the factory should not be connected until after the centrifugal pump is installed in the system or on
the pump foundation.
3.3. Setting up and Connecting
3.3.1. Before starting to set up, check the following:
 Is the machine / system / container connection prepared according to the dimensions of the
dimension sheet / installation diagram?
 Do the concrete foundations have sufficient concrete strength (min. B 15) per DIN 1045?
 Is the concrete foundation hardened?
 Is the surface horizontal and even?
Caution! Risk of injury – stability
Pump with large drives that are installed vertically are top-
heavy. These pumps must be
secured against tipping during assembly or disassembly, for example by using retaining ropes.
3.3.2. Installation and Set-up of the Pump
Except for the special design, pumps are always placed on a base plate with the pump or motor mount
and fastened with bolts.
For assembly on a foundation, the centrifugal pump must be aligned with a spirit level.
3.4. Connecting the Pipelines
Caution!
The centrifugal pump must never under any circumstances be used as a point for securing
the pipeline.
No forces or moments (for example caused by warping or heat expansion) from the
pipelines
may be allowed to affect the centrifugal pump.
Pipes must be intercepted directly before the pump and connected with no tension. Their weight must
not place any load on the pump.
The alignment must be made very carefully, since it is the precondition for problem-free operation of
the unit.
Caution!
With hot, corrosive and toxic pumping media!
 If pipeline forces are exceeded, points with faulty seals may develop on the centrifugal pump
itself or on the flanges, which may result in powerful ejection of pumping medium.
 For short pipelines, the nominal widths should at least match those of the pump connections. For
longer pipelines, determine the most cost-effective nominal width from case to case.

Operating / Assembly manual
14 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
 Transition pieces to larger nominal widths should be designed with an expansion angle of about
8° to prevent increased pressure loss.
 Expansion of pipelines due to temperature must be countered by suitable measures.
 We recommend installing compensators in the pipeline.
Valves that
close very suddenly (abruptly) must be avoided in the pipework. The resulting
pressure surges can greatly exceed the maximum permitted housing pressure of the pump!
3.4.1. Pipelines for WK
 The suction line rises continuously to the centrifugal pump. For drain, lay pipelines continuously
falling to prevent air lock from forming. Depending on the type of system and pump, installation
of backflow prevention valves and shut-off elements is recommended.
 Depending on the version, the pump is designed with composite connections. When assembling
and disassembling the pipelines, be careful with the threaded connections. It must be ensured
that only suitable composite screw connections are used (cylindrical thread).
 Do not use sealing tapes, sealing cords, hemp or pastes to seal the threaded connections, but use
liquid pipe or thread sealant. We recommended using liquid sealants such as Weicon AN 305-72
or Loctite 5331.
3.4.2. Pipelines for SMK
 The suction pipes should be installed in a continuous rising way to avoid air pockets.
 The pump casing and the connections are made from synthetic fibres. The threaded connections
should be handled with care during assembly and disassembly of the pipework. It must be paid
attention on this, that only suitable plastic threaded connections are used (cylindrical thread).
 To seal the threaded connections do not use sealing tape, cords, hemp or any paste, but liquid
pipe or thread sealant. We recommend the use of liquid seals such as Weicon AN 305-72 and
Loctite 5331.
The inobservance of these instructions can lead to damages to the plastic parts and with that for the
loss of all rights to claim under warranty!

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
15
3.4.3. Anschluss Rohrleitung SMK
Fig. 2
The SMK is a self-priming centrifugal pump fitted with a semi-open impeller and a mechanical seal. The
pump is suitable for clean and slightly contaminated liquids.
Suction lifts up to 2.5m are possible. The pump has to befilled with liquid once before the first pump
start.
After the pump is started, the air from the suction pipe will be completely pumped away. The air
disappears in the discharges pipes i.e. the pump can only vent through the open discharge pipes.

Operating / Assembly manual
16 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
4. Electrical Connection
4.1. Electrical Connection - General
Connection tasks must only be performed by a certified installation electrician. Applicable DIN VDE-
requirements must be observed.
Compare the existing mains power supply with the information on the factory plate of the motor and
select a suitable circuit.
We recommend using a motor protection device.
Danger of explosion!
If there is danger of explosion, a motor protection device must be installed!
In compliance with VDE 0530-8, threephase motors are always wired for clockwise rotation (looking at
the motor shaft stub).
The direction of rotation of the pump is anti-clockwise as standard (viewed from the suction flange).
Always note the arrow on the pump indicating the direction of rotation.
4.2. Elec trical Connection - Pump Type WK
Connect the motor according to the circuit diagram in fig. 3 "Delta connection" or fig. 4 "Star
connection".
Make certain:
 The mains power connection must only be made via a fixed connection.
 There must be no conducting connection from metal components of the motor to the water.
 The mains supply line must be equipped with a fault current circuit breaker (rated current error
£ 30 mA) and an all-pole separator with a contact opening of 3 mm.
 Equipotential bonding with a cross-section of 10 mm² must be applied on the connection terminal
so identified (on the motor mount or next to the terminal box).
 The pump must only be operated with the terminal box cover closed!

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
17
4.2.1. Connection Diagrams for Three-Phase Motors
Fig. 3 Delta connection ∆
(low voltage)
Fig. 4 Star connection Y
(high voltage)
4.2.2. Time Relay Setting
For three-phase motors with star-delta connection, you must ensure that the switching points between
star and delta follow one after the other in as little time as possible. Longer switching times will result in
damage to the motor. Time delay setting for star-delta connection: < 3 sec.
4.2.3. Direction of Rotation Check
The direction of rotation of the motor must agree with the direction of the rotation arrow on the motor
housing of the pump. Check by switching on and off in quick succession. If the direction of rotation is
incorrect, reverse any two phases L1, L2 or L3 of the mains power supply line in the motor terminal box.
4.2.4. Auxiliary Equipment for Motor
If special control devices are provided, for example in conjunction with use of the centrifugal pump in a
technical system, the manufacturer's instructions for these control devices must always be observed.
For additional information, see the Operator's Manual Pump Control (27122).

Operating / Assembly manual
18 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
5. Device Units
5.1. Pump Kit Type WK
Der Pumpenbausatz besteht aus:
1. Pump unit
2. Suction hose*
3. Pressure*
4. Switching tube ø 4 mm*
5. Control box*
6. Cable protection cover*
* If included in the scope of delivery
The pump kit is
always the same regardless of
the type of pool.
Fig. 5 Pump kit WK
The control box must always be positioned above the water level of the pool!
When setting up the pump, there must be sufficient ventilation (motor cooling) and an
adequate possibility for leakage water to flow off!
6. Assembly
6.1. Assembly - General
A =min. 100 mm
B =160 mm
S Screw
Mount the support in the place provided for it.
Fasten the support in place with 3 screws (S).
Fig. 6

Pump type WK/ SMK
Version: 27220 - E
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
19
6.2. Assembly of the Control Box
Mount the control box as close as possible to
the installation kit. Connect the
switching tube
onto the nipple in the protection cover.
Caution:
Do not kink the switching tube
and keep it as short as possible;
maximum length 8 m.
Connection information for
Control box, refer to the
corresponding operating
instructions 27248.
Fig. 7 Control Box

Operating / Assembly manual
20 Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany Pump type WK/ SMK
Version: 27220 - E
6.3. Assembly of WK-Vario Combination with Massage Jets or Water Curtain
Fig. 8 Non-binding system illustration
6.4. Flow Losses - Pipes and Elements
Water, 48 m³/h; turbulent flow; roughess value: 0,1 mm
Flow losses in the pipeline (pressure- and suction side) must be noted. Flow losses must be kept low in
the components that are used.
Sample flow values are listed in Fig. 9.
Non-return valve
To hydro-massage or Water Curtain
WK vario
Suction unit Water regulation
Air regulation
To counter current
To hydro-massage