KNF NPK 09 User manual

KNF 121576-121579 02/23
OEM
NPK09
TRANSLATION OF ORIGINAL OPERATING AND
INSTALLATION INSTRUCTIONS
ENGLISH
SWING PISTON PUMP
Note!
Before operating the pump and the accessories, please read the operating instructions and pay attention to
the safety precautions!

Table of contents Page
1. About this document ................................................................. 3
2. Use............................................................................................ 5
3. Safety........................................................................................ 7
4. Technical Data........................................................................ 10
5. Design and function ................................................................ 12
6. Transport ................................................................................ 14
7. Installation and connection ..................................................... 15
8. Operation ................................................................................ 22
9. Servicing ................................................................................. 25
10. Troubleshooting ...................................................................... 32
11. Spare parts and accessories .................................................. 34
12. Returns ................................................................................... 35
KNF Neuberger GmbH
Alter Weg 3
D-79112 Freiburg
Germany
Phone [phone] / 5909-0
Fax [phone] / 5909-99
E-Mail: [e-mail]
www.knf.de

Swing Piston Pumps NPK09 About this document
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 3
1. About this document
1.1. Using the operating and installation instruc-
tions
The Translation of original Operating and Installation Instructions
are part of the pump.
In the event of uncertainties with regard to the content of
theTranslation of original Operating and Installation Instruc-
tions, please contact the manufacturer (contact data: see
www.knf.com). Please have the type and serial number of the
pump ready.
Read the Translation of original Operating and Installation
Instructions before you commission the pump.
Give the Translation of original Operating and Installation
Instructions only completely and unchanged to the next owner.
Keep the Translation of original Operating and Installation
Instructions within reach at all times.
For customer-specific project pumps (pump models that begin with
"PJ" or "PM"), there may be deviations from the operating and
installation instructions.
For project pumps, also observe the agreed upon specifica-
tions.
1.2. Exclusion of liability
The manufacturer assumes no liability for damages and malfunc-
tions resulting from failure to observe the Translation of original
Operating and Installation Instructions. The manufacturer assumes
no liability for damages and malfunctions resulting from changes or
modifications to the device and improper handling. The manufac-
turer assumes no liability for damages and malfunctions resulting
from impermissible spare parts and accessories.
1.3. Symbols and markings
Warning notice
WARNING
A notice that warns you of danger is located here.
Possible consequences of a failure to observe the
warning are specified here. Th
e signal word, e.g.
w
arning, indicates the danger level.

Measures for avoiding the danger and its cons
e-
quences are specified here.
Project pumps

About this document Swing Piston Pumps NPK09
4 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
Danger levels
Signal word
Meaning
Consequences if not observed
DANGER
warns of immedi-
ate danger
Death or serious injury or
serious damage will result.
WARNING
warns of possible
danger
Death, serious injury or serious
damage is possible.
CAUTION
warns of a possibly
dangerous situa-
tion
Minor injuries or damage are
possible.
NOTICE
warns of possible
damage
Damage is possible
Tab. 1
Other notices and symbols
An activity to be carried out is specified here (a step).
1. The first step of an activity to be carried out is specified here.
Follow other sequentially numbered steps.
This symbol indicates important information.

Swing Piston Pumps NPK09 Use
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 5
2. Use
2.1. Proper use
The pumps are intended exclusively for transferring gases and
vapors.
Responsibility of the owner
Only install and operate the pumps in accordance with the operat-
ing parameters and conditions described in Chapter 4.Technical
Data.
Only pumps that are fully assembled and in the condition as deliv-
ered may be operated.
Make sure that the installation location is dry and the pump is
protected against rain, splash, gushing, and drip water as well as
from other contaminants.
Check the tightness of the connections between the pipes of the
application and the pump (or the connection of the pump) at regu-
lar intervals. Leaky connections carry the risk of releasing danger-
ous gases and vapors from the pump system.
Before transferring a medium, check whether the medium can be
transferred danger-free in the specific application.
Risk of dangerous gas mixtures during pump operation if sealing
lip breaks: Depending on the medium being transferred, breakage
of the sealing lip
can result in a dangerous mixture if the medium mixes with the air
in the compressor housing or the surroundings.
Only transfer gases which remain stable under the pressures and
temperatures that arise in the pump.
Operating parameters and
conditions
Requirements for
transferred medium

Use Swing Piston Pumps NPK09
6 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
2.2. Improper use
The pumps are not allowed to be operated in explosive atmos-
pheres.
The pumps are not suitable for transferring:
−Dusts
−Liquids
−Aerosols
−Biological and microbiological substances
−Fuel
−Explosives and flammable materials
−Fibers
−Oxidants
−Food
Pumps that can produce both vacuum as well as overpressure
may not be used to simultaneously produce vacuum and overpres-
sure.
This function can be made possible on a project basis following
consultation with KNF Customer Service.
No overpressure may be applied to the suction side of the pump.
This function can be made possible on a project basis following
consultation with KNF Customer Service.

Swing Piston Pumps NPK09 Safety
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 7
3. Safety
Note the safety precautions in Chapters 7. Installation and
co
nnection, and Chapter 8. Operation.
The pumps are produced according to the generally recognized
rules of engineering as well as the occupational health, safety and
accident prevention regulations. Nevertheless, dangers can arise
during their use which lead to injuries to the user or third parties or
to damage to the pump or other property.
Only use the pumps in perfect technical condition, for their intend-
ed use, safely and aware of the dangers and in observation of the
operating and installation instructions.
The components that are to be connected to the pumps must be
designed according to the pneumatic data of the pumps.
When connecting the pumps to the electrical power, observe the
corresponding safety rules.
Make sure that only specially trained and instructed personnel
work on the pumps. This applies, in particular, to assembly, con-
nection and service work.
Make sure that the personnel have read and understood the oper-
ating and installation instructions, particularly the chapter on safety.
Observe the regulations on accident prevention and safety during
all work on the pumps and during operation.
Avoid contact with the heads and housing parts, as the pump heats
up during operation and may remain hot for some time after oper-
ating.
When working on the pump, make certain that the pump is discon-
nected from mains and without power.
Ensure that no hazards arise from gas flowing when gas connec-
tions are open, from the effects of noise or from hot, corrosive,
dangerous and environmentally hazardous gases.
Make sure that an EMC-compliant installation of the pump is
ensured at all times to prevent the occurrence of dangerous situa-
tions.
Upon breakage of the sealing lip, the transferred medium mixes
with the air in the surroundings and/or in the pump housing. Make
sure that a dangerous situation cannot arise as a result. When
pumping hazardous media, observe the safety regulations for the
handling of said media.
Note that the pumps are not designed to be explosion-proof.
Make sure that the temperature of the medium is always sufficient-
ly below the ignition temperature of the medium so as to prevent
ignition or explosion. This also applies for abnormal operating
situations.
Note that the temperature of the medium increases when the pump
compresses the medium.
Therefore, make certain that the temperature of the medium also
remains sufficiently below the ignition temperature of the medium
Personnel
Working in a safety-
conscious manner
Handling hazardous media
Handling of combustible media

Safety Swing Piston Pumps NPK09
8 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
even when it is compressed to the maximum permissible operating
pressure of the pump. The maximum permissible operating pres-
sure of the pump is stated in Chapter 4. Technical Data.
Make certain that the permissible ambient temperature (Chapter 4.
Technical Data) is not exceeded.
Where applicable, also take into account external energy sources
(such as radiation sources) that could additionally heat the
medium.
When the operation of the pump is interrupted by the thermal
switch, the pump will re-start automatically after cooling down.
Take all care necessary to prevent this leading to a dangerous
situation.
In case of doubt, consult the KNF Customer Service.
Store and dispose of all replacement parts in accordance with the
environmental regulations. Observe the respective national and
international regulations. This applies in particular to parts that are
contaminated with toxic substances.
For the purposes of the Machinery Directive 2006/42/EC, pumps
are “partly completed machinery,” and are therefore to be regarded
as not ready for use. Partly completed machinery may not be
commissioned until such time as it has been determined that the
machine in which the partly completed machinery is to be
assembled is in conformity with the provisions of the Machinery
Directive 2006/42/EC. The following essential requirements of
Annex I of Directive 2006/42/EC (general principles) are applied
and observed:
−General Principles No. 1
−No. 1.1.2. / 1.1.3. / 1.3.1. / 1.3.3. / 1.3.4. / 1.4.1. / 1.5.1.* /
1.5.2.* / 1.5.8. / 1.5.9. / 1.7.4. / 1.7.4.1. / 1.7.4.3.
(* only for pumps with AC motor)
As these partly completed machinery are OEM-models the power
supplies and the equipment for disconnecting and switching-off the
partly completed machinery respectively have to be considered
when mounting as well as over-current and overload protective
gear.
In addition a protection against mechanical parts in motion and hot
parts, if existing, has to be provided when mounting.
The safety objectives of the following Directive(s) have been met:
Directive 2011/65/EU on the restriction of the use of cer-
tain hazardous substances in eletrical and electronic
equipment (Annex II amended by Commission Delegated
Directive (EU) 2015/863).
Only for pumps with AC motor:
Directive 2014/35/EU on the harmonisation of the laws of
Member States relating to electrical equipment designed
for use within certain voltage limits in accordance with
Annex I, No. 1.5.1. of the Directive 2006/42/EC.
Environmental protection
EC Directives / Standards

Swing Piston Pumps NPK09 Safety
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 9
The following harmonized standards were taken as a basis:
NPK 09 DC
NPK 09 AC
EN 55014-1/2
EN IEC 55014-1/2
EN 60034-1
EN IEC 61000-3-2
EN IEC 61000-6-1/2
EN 61000-3-3
EN IEC 63000
EN IEC 63000
EN 60335-1
Tab. 2
The pumps are maintenance-free. However, KNF recommends
periodic inspection of the pump for obvious changes in noise or
vibration.
Only have repairs to the pumps performed by qualified KNF per-
sonnel.
Housings with electrically live components may only be opened by
specialist personnel.
Use only genuine spare parts from KNF when performing servicing
work.
Customer service and
repairs

Technical Data Swing Piston Pumps NPK09
10 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
4. Technical Data
Pump materials
Assembly
Material
Ribbed head; intermediate plate
Aluminium
Housing
Aluminium
Valve plate
1.4310
Gasket
NBR compound
O-ring
FPM
Sealing lip
PTFE compound
Tab. 3
Pneumatic values
Pump type
Delivery rate
at atm.
Pressure
[l/min]*
Max. permissible
operating pressure
[bar g]
Ultimate
vacuum
[mbar abs.]
NPK09
12
7 100
NPK09 DC
15
NPK09.1
24
-
NPK09.2
7
-
NPK09.1.2
100
Tab. 4 * Liters in standard state (1,013 mbar)
Pneumatic connections
Pump type
Suction side
Pressure side
NPK09
Thread size G1/8“
NPK09 DC
Thread size G1/8“
NPK09.1
For hose ID6
Thread size G1/8“G1/8“
NPK09.2
Thread size G1/8“
For hose ID6
NPK09.1.2
For hose ID6
Tab. 5
Electrical parameters
Parameter
Value
Electrical data
See type plate
Protection class
IP00
Tab. 6
The AC-motors of the pumps are fitted as standard with a thermal-
switch to protect against overloading.
Thermal-switch

Swing Piston Pumps NPK09 Technical Data
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 11
Dimensions
Pump type
Dimensions [L x W x H]
NPK09
See Fig. 5, Chapter 7.1
NPK09 DC
See Fig. 6Chapter 7.1
NPK09.1
See Fig. 7, Chapter 7.1
NPK09.2
NPK09.1.2
Tab. 7
Weight
Pump type
Weight [kg]
NPK09
approx. 1.8
NPK09 DC
approx. 1.6
NPK09.1
approx. 2.2
NPK09.2
NPK09.1.2
approx. 2.4
Tab. 8
Other parameters
Parameter
Values
Permissible
ambient temperature
+ 5 °C to + 40 °C
Permissible media temperature
+ 5 °C to + 40 °C
Maximum permissible ambient
relative humidity
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
Max. altitude of site
[m above sea level] 2000
Tab. 9

Design and function Swing Piston Pumps NPK09
12 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
5. Design and function
Design NPK 09 DC
1Outlet
2
Pump head
3
Inlet
4
Motor
Fig. 1: Swing Piston Pump NPK 09 DC
Design NPK 09 AC
1Outlet
2
Pump head
3
Inlet
4
Pneumatic
head connection
5
Motor
6
Pneumatic
head connection
7
Pump head
Fig. 2: Swing Piston Pump NPK 09 AC

Swing Piston Pumps NPK09 Design and function
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 13
Fig. 3: Pneumatic connection of two-headed pumps
Function of a Swing Piston Pump
1Inlet valve
2
Outlet valve
3
Working chamber
4
Retainer plate
5
Sealing lip
6
Eccentric
7
Connecting rod
8
Compressor housing
Fig. 4: Function of a Swing Piston Pump
Swing Piston Pumps transfer, compress and evacuate air.
The sealing lip, consisting of retainer plate (4) and sealing lip (5), is
moved up and down by the eccentric (6) and the connecting rod
(7). In the downward stroke the swing piston aspirates the medium
to be transferred via the inlet valve (1). In the upward stroke, the
swing piston presses the medium out of the pump head via the
outlet valve (2). The swing piston is sealed off from the compressor
housing by a sealing lip (5) and operates oil-free.

Transport Swing Piston Pumps NPK09
14 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
6. Transport
General
CAUTION
Personal injury and/or property damage due to
incorrect
or improper transport of the pump
In the event of incorrect or imp
roper transport, the
pump can fall dow
n, be damaged or injure persons.

Use suitable auxiliary means if necessary (carry-
ing strap, lifting gear, etc.).

Where appropriate, wear suitable personal
protective equipment (e.g., safety shoes, safety
gloves).
CAUTION
Risk of injury from sharp edges on the packaging
There is a risk of injury
from cutting on the sharp
edges when grabbing corners or when opening
the
packag
ing.

Where appropriate, wear suitable personal
protective equipment (e.g., safety shoes, safety
gloves).
Transport the pump in the original packaging to the installation
location.
Store the original packaging of the pump (e.g., for later stor-
age).
Inspect the pump for transport damage after receiving it.
Document any transport damage in writing.
Remove any transport safeguards on the pump prior to com-
missioning.
Parameter
Parameter
Value
Storage temperature[° [°C]
+ 5 to + 40
Transport temperature [°C]
- 10 to + 60
Permissible humidity (non-condensing) [%]
30 to 85
Tab. 10
Prior to commissioning, make sure that the pump has reached
the ambient t
emperature (see 4. Technical Data).

Swing Piston Pumps NPK09 Installation and connection
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 15
7. Installation and connection
Install the pumps only in accordance with the operating parameters
and conditions described in Chapter 4. Technical Data.
Observe the safety precautions (see Chapter 3. Safety).
DANGER
Risk of dangerous gas mixtures during pump opera-
tion
Depen
ding on the medium being transferred, break-
age of the media
-contacting components can result
in a dangerous mixture if th
e medium mixes with the
air i
n the compressor housing or the surroundings.

Before using a medium, check the compatibility
of the media-contacting components (see 4.
Technical Data) with the medium.

Installation and connection Swing Piston Pumps NPK09
16 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
7.1. Installing the pump
Store the pump at the same ambient temperature as the instal-
lation to mitigate condensation.
For mounting dimensions, see the following figures:
Fig. 5: Mounting dimensions NPK09
Mounting dimensions

Swing Piston Pumps NPK09 Installation and connection
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 17
Fig. 6 Mounting dimensions NPK09 DC
Fig. 7 Mounting dimensions NPK09.1, NPK09.2, NPK09.1.2

Installation and connection Swing Piston Pumps NPK09
18 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
Install the pump so as accidental finger contact is with the fan
is impossible.
WARNING
Danger of burning on hot surfaces
Hot
surfaces could occur if the pump overheats.

When installing the pump, make sure that suffi-
cient cooling air infeed and discharge is en-
sured.
During installation, make sure that no combustible or thermally
deformable objects are positioned in the immediate area of the
hot pump parts (head, drive).
Make sure that the installation location is dry and the pump is
protected from rain, splash water, dripping water and other
contamination.
Make sure the pump location in the instrument allows access
for periodic maintenance and inspection.
The IP protection class of the pump motor is specified on the
type
plate.
Mount the pump at the highest point in the system to prevent
condensate from collecting in the pump head.
Protect the pump from dust.
Protect the pump from vibration and impact.
Choose a safe location (flat surface) for the pump.
WARNING
Personal injury and/or damage to property because
of vibratio
n
In
conjunction with adjacent components, vibration of
the pump may result in crushing and/or damage to
these components.

Make sure that vibrations of the pump do not
result in hazards associated with adjacent com-
ponents.
Protect the pump against contact and intrusion of foreign
matter.
.
Cooling air supply
Immediate environment of the
hot pump parts
Installation location
Foreign matter protection

Swing Piston Pumps NPK09 Installation and connection
Translation of original Operating Instructions, English, KNF 121576-121579 02/23 19
7.2. Electrical connection
DANGER
Danger to life from electric shock

Only have the pump connected by an author
ized
specialist.

Only have the pump connected when the power
supply is disconnected.
When connecting to a power source, observe the applicable
regulations, directives, and technical standards.
Install a device for separating the pump motor from the electri-
cal mains in the electrical installation (e.g., in accordance with
EN 60335-1).
Protect the pump motors, e.g., in accordance with EN 60204-1
(overcurrent protection, overload protection).
Refer to the type plate for the maximum current consumption
of t
he pump.
It is recommended that an additional “Emergency Stop” switch
is installed.
Mount the pumps in such a way that it is not possible to touch
electrically live parts (electrical connection).
Fasten the connection cables so that
−the cables do not come into contact with movable or hot
parts.
−the cables cannot be worn or damaged on sharp corners
or edges
−no tensile and pressure forces are exerted on the connec-
tion point of the cables (strain relief)
The pumps are fitted as standard with a thermal switch to
protect against over
loading (connection according to operating
instructions of the
motor).
Connecting the pump
1. Confirm that the supply voltage meets the parameters listed on
the pump nameplate. Refer to the pump nameplate for the rat-
ed current consumption.
The voltage must not vary by more than + 10% and - 10% from
that shown on the type
-plate.
2. Connect the earth (ground) wire to the motor (not necessary on
dc motors up to 24V).
3. For NPK09 AC:
Connect the mains cables to the connections L1 and N of the
pump motor.
4. For NPK09 DC:
Connect the positive and negative pole.
Note the proper polarity (see marking on the motor).
Fastening the connection
cables
Thermal switch

Installation and connection Swing Piston Pumps NPK09
20 Translation of original Operating Instructions, English, KNF 121576-121579 02/23
Correct connection:
+ red cable
- black cable
EMC-compatible Installation (for NPK09 DC)
The Tests:
- Magnetic field with energy-technical frequency
- Electromagnetic HF field, amplitude-modulated
- Electromagnetic HF field, pulse-modulated
- Discharging of static electricity
- High frequency, asymmetric
- Fast transients
were not carried out, cause the products do not contain electronic
modules, which can be affected by these tests.
The Surge-test can only be passed with additional means, or is not
mandatory, if: From EN61000-6-1 technical norm for EMC protec-
tion, part 1,10 test demands for EMC protection, table 3, EMC
protection, D.C.- power in- and outputs. Remark 3: (quotation) Not
to be used with input connections which are foreseen for a connec-
tion with a battery or a rechargeable battery which has to be re-
moved or disconnected from the device for the recharge.
Devices with a D.C. power input which are foreseen to be operated
with an A.C. / D.C. converter have to be tested at an A.C. power
input of an A.C. / D.C. converter fixed by the manufacturer. In case
the converter was not fixed they have to be tested at an A.C.
power input of a typical (usual) A.C. / D.C. converter.
The test is applicable for D C power inputs which are foreseen for
a permanent connection to cables which are longer than 10 m.