KNF NF 1.30 User manual

KNF Flodos AG BA_NF1.30_EN_04_067674.docx
Translation of original Operating and Installation Instructions Keep for future reference!
DIAPHRAGM LIQUID PUMP
NF 1.30
Operating and
Installation
Instructions
Read and observe these Oper-
ating and Installation Instruc-
tions.
An additional letter prefixing
the
NF model code is a country-
specific designation, with no
technical relevance.
Contents Page
1. About this document ................................................................. 2
2. Use ........................................................................................... 3
3. Safety ....................................................................................... 4
4. Technical data .......................................................................... 6
5. Assembly and function ............................................................. 8
6. Installation and connection ....................................................... 9
7. Operation ................................................................................ 11
8. Servicing ................................................................................. 14
9. Troubleshooting ...................................................................... 17
10. Spare Parts and Accessories ................................................. 19
11. Return of the pump ................................................................. 20
KNF Flodos AG
Wassermatte 2
6210 Sursee, Switzerland
Tel [phone]
Fax [phone]
www.knf.com
[e-mail]
NF 1.30 KT DCG 12V
DCG
1.30
NF
Supply voltage [Ch. 4]
-
/ PMLxxxx / PLxxxx [Ch. 1]
KT / TT [Ch. 4]

About this document Diaphragm Liquid Pump NF 1.30
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1. About this document
1.1. Use of the Operating and Installation Instruc-
tions
The Operating and Installation Instructions are part of the pump.
 Forward the Operating and Installation Instructions to any
subsequent owners of the pump.
Customer-specific project pumps (pump models which begin with
"PL" or "PML") may differ from the Operating and Installation
Instructions.
 In the case of project pumps, take note of any additionally
agreed specifications.
1.2. Symbols and markings
Warning
WARNING
This symbol indicates a potential danger.
It also indicates the possible consequences of failure
to observe the warning. The signal word (e.g. "Warn-
ing") indicates the level of danger.
 Here you will see
actions for avoiding the danger
and potential consequences.
Danger levels
Signal word Meaning Consequences if not observed
DANGER warns of immedi-
ate danger
Consequences are death or
serious injury and/or serious
property damage.
WARNING warns of potential
danger
Death or serious injury and/or
serious damage to property are
possible.
CAUTION warns of a poten-
tially dangerous
situation
Minor injury or damage to prop-
erty are possible.
Tab. 1
Other information and symbols
 This indicates a required activity (step) that must be carried
out.
This indicates the first step of an activity to be carried out. Any
additional steps are numbered consecutively.
This symbol indicates important information.
Project pumps

Diaphragm Liquid Pump NF 1.30 For your notes
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2. Use
2.1. Intended use
The pumps are intended for transferring and metering liquids.
Owner's responsibility
Install and operate the pumps only under the operating parameters
and conditions described in Chapter 4. Technical data.
Only completely installed pumps may be taken into service.
Before transferring or metering a medium, check whether the
medium can be transferred danger-free in the specific application
case.
Before using a medium, check the compatibility of the materials of
the pump head, pump housing, diaphragm and valves with the
medium.
The temperature of the medium must lie within the permissible
temperature range (see Chapter 4).
The transferred medium should not contain particles as these can
prevent the pump from working correctly. If this cannot be guaran-
teed, a filter < 100 m with sufficiently large filter area must be
used upstream of the pump.
 Filters may be ordered as accessories, see Spare Parts and
Accessories (Chapter 10).
2.2. Improper use
DANGER
The pumps must not be operated in an explosive
atmosphere.
Please contact your local KNF partner for special designs that
are not included in the technical specification (www.knf.com).
Operating parameters and
conditions
Requirements for media
to be transferred
Risk of explosion

Safety Diaphragm Liquid Pump NF 1.30
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3. Safety
Observe the safety precautions in Chapters
6. Installation and connection and 7. Operation.
The pumps are built according to the generally recognised rules of
technology and in accordance with the pertinent occupational
safety and accident prevention regulations. Nevertheless, potential
dangers during use can result in injuries to the user or others, or in
damage to the pump or other property.
Only use the pumps when they are in a good technical and proper
working order, in accordance with their intended use, observing the
safety advice within the Operating and Installation Instructions, at
all times.
Make sure that only trained and instructed personnel or specially
trained personnel work on the pumps. This especially applies to
assembly, connection and servicing work.
Make sure that the personnel has read and understood the Operat-
ing and Installation Instructions, and in particular the "Safety"
chapter.
Always ensure adherence to all pertinent accident prevention and
safety regulations when working on and operating the pump.
When transferring dangerous media, observe the safety regula-
tions for handling such media.
Always ensure adherence to all information stickers on the pumps,
such as flow direction arrows and type plates, and keep stickers in
a legible condition.
All replacement parts should be properly stored and disposed of in
accordance with the applicable environmental protection regula-
tions. Ensure adherence to the pertinent national and international
regulations. This applies especially to parts contaminated with toxic
substances.
Dispose of all packaging in an environmentally-appropriate
manner. The packaging materials are recyclable.
Dispose of end-of-life equipment in an environmentally
friendly manner. Use appropriate waste collection systems
for the disposal of end-of-life equipment. Used pumps
contain valuable recyclable materials.
Personnel
Working in a
safety-conscious manner
Handling dangerous media
Notes
Environmental protection
Disposal

Diaphragm Liquid Pump NF 1.30 For your notes
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The pumps comply with the fundamental requirements of Directive
2011/65/EU (RoHS2).
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 assem-
bled conforms to the provisions of the Machinery Directive
2006/42/EC. The essential requirements of Annex I of Directive
2006/42/EC (general principles) are applied and observed.
The following harmonized standards are met:
NF 1.30 DCG
 EN 55014 - 1: 2001
All repairs to the pumps must be carried out by the responsible
KNF customer service team.
Use only genuine parts from KNF for servicing work.
EU directives/standards
Customer service and
repairs

Technical data Diaphragm Liquid Pump NF 1.30
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4. Technical data
Pump materials
The pump type KT stands for:
Assembly Material1)
Pump head* PP
Valve socket PP / FFKM
Sealing washer FFKM
Diaphragm PTFE
Tab. 2 1) according to DIN ISO 1629 and 1043.1
* The pump head comprises an intermediate plate and a connect-
ing plate (Fig. 1).
The pump type TT stands for:
Assembly Material1)
Pump head* PVDF
Valve socket PVDF / FFKM
Sealing washer FFKM
Diaphragm PTFE
Tab. 3 1) according to DIN ISO 1629 and 1043.1

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Hydraulic ratings
Parameter Value
Flow rate [ml/min] 1), 2) 170
Permissible pressure [bar g] 4
Suction head [mWG] 5
Tab. 4
1) Measured with water at 20°C / at atmospheric pressure
2) Flow rates may vary from the values shown, depending on fluid
viscosity, pump head material and the hoses / hose connectors
used.
Hydraulic connections
Parameter Value
Recommended hose size ID [mm] / OD
[mm]
4/6
Tab. 5
Specifications NF 1.30 DCG
Motor voltage 12V 24V
Power consumption [W] 10.1 11
Max. I load [A] 0.61 0.35
Max. permissible operating
current [A] 0.84 0.46
Lead size [-] AWG28
Protection class [-] IP00
Weight1) [g] 220
Tab. 6
1) The weight may differ slightly from the stated value, depending on
the version.
Other parameters
Parameter Value
Permissible
ambient temperature range (°C)
+5 to +40
Permissible media temperature range (°C) +5 to +80
Permissible kinematic viscosity of medium
[cSt]
≤150
Tab. 7

Assembly and function Diaphragm Liquid Pump NF 1.30
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5. Assembly and function
Assembly
1 Outlet
2 Inlet
3 Head plate
4 Connecting plate
5 Intermediate plate
6 Motor
Fig. 1: Diaphragm liquid pump
1 Outlet valve
2 Inlet valve
3 Working chamber
4 Diaphragm
5 Eccentric
6 Connecting rod
7 Pump drive
Fig. 2: Pump assembly
The diaphragm liquid pumps are based on reciprocating displace-
ment pump technology. The elastic diaphragm (4) is moved up and
down by the eccentric (5) and the connecting rod (6). In the down-
ward stroke it aspirates the medium to be transferred via the inlet
valve (2). In the upward stroke the diaphragm pushes the medium
out of the pump head via the outlet valve (1). The diaphragm
hermetically seals off the working chamber (3) from the pump
drive (7).

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6. Installation and connection
Install the pumps only under the operating parameters and condi-
tions described in Chapter 4. Technical data.
Observe all safety precautions (see Chapter 3).
6.1. Installation
 Before installation, store the pump at the installation location to
bring it up to ambient temperature.
 Mounting dimensions (see Fig. 3)
Fig. 3: Mounting dimensions NF 1.30 DCG
 Make sure that the installation location is dry and the pump is
protected against water in the form of rain, spray, splashes and
drips.
 Protect the pump against dust.
 Protect the pump against vibration and impact.
 Generally speaking, the pump can be installed in any position.
For maximum precision and rapid venting, install pump as
shown in the illustration (Fig. 4).
 KNF recommends mechanically decoupling the pump from the
piping system, e.g. by using flexible hoses or pipes. This pre-
vents any oscillations of the pump being transferred to the sys-
tem.
Mounting dimensions
Installation location
Installation position
Fig. 4: Optimum
installation position
Decoupling

Installation and connection Diaphragm Liquid Pump NF 1.30
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6.2. Electrical connection
 Only have the pump connected by an authorised specialist.
 Only have the pump connected when the power supply is
disconnected.
 When connecting the device to a power source, the relevant
norms, directives, regulations and technical standards must be
observed.
Connecting the pump
Make sure that the power supply data match the data on the
motor's type plate. The operating current can be found on the
type plate.
Connect positive and negative terminals. For electrical data
see Chapter 4
With DC motors, please pay attention to correct polarity:
red motor cable: +
black motor cable: -
6.3. Hydraulic connection
 Only connect components to the pump that are designed to
handle the hydraulic data of the pump (see
Chapter 4. Technical data)
 Only use hoses that are suitable for the maximum permissible
operating pressure of the pump (see Chapter 4).
 Only use hoses that are sufficiently chemically resistant to the
liquids being transferred.
6.3.1. Connecting the pump
Arrows on the pump head indicate the flow direction.
Remove the protective caps.
Connect the suction and pressure lines.
Keep the suction line as short as possible in order to keep the
priming process as brief as possible.
If the pump is used to build up pressure, make sure that all
transition joints between hose and pump are secure in order to
ensure that the hoses cannot come off.
Check that the hoses and transition joints are fitted correctly
and securely.
Check that the system is leak-tight.
Connected
components
Hoses

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7. Operation
 Operate the pumps only under the operating parameters and
conditions described in Chapter 4. Technical data.
 Make sure that the pumps are being used properly (see Sec-
tion 2.1).
 Avoid improper use of the pumps (see Section 2.2).
 Observe the safety precautions (see Chapter 3).
 The pumps are components that are intended to be incorpo-
rated into another machine. Before putting them into service it
must be established that the machinery or systems in which
they are installed meet the relevant regulations.
CAUTION
Risk of burning
The drive heats up.
 Avoid contact with the pump drive.
 Avoid contact with flammable materials.
WARNING
Danger of bursting of the fluid system due to
overpressure.
The pump builds up pressure. A closed system can
cause the max. permitted operating pressure to be
exceeded. This can cause injuries or damage to the
pump and the system.
 Avoid operation against a closed system.
 Only use wetted parts that are rated for at least
the operating pressure of the pump.

If necessary, limit the maximum system pressure
by suitable measures.
Excessive pressure and the inherent dangers thereof can be
prevented by placing a bypass line with a pressure relief valve
between the pressure and suction side of the pump. Please
contact your local KNF partner for further information
(www.knf.com).
CAUTION
Risk of burns when transferring hot media
 Do not touch the pump or the media transfer
system.
 Avoid contact with flammable materials.
 If the pump stops running, restore the system to normal at-
mospheric pressure.
Pump standstill

Operation Diaphragm Liquid Pump NF 1.30
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Switching the pumps on and off
The motor speed of the pump, and thus the flow rate, is adjustable
and can also be regulated to some extent.
For details, see Chapter 4. Technical data.
Duty cycle / short cycle operation
KNF pumps are designed for continuous operation.
Short start and stop cycles may adversely affect the service life of
the brushed motors.
If the pump is operated with short cycles in your application,
please contact your local KNF partner for further information
(www.knf.com.)
Setting and regulating motor
speed
Short cycle operation

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Switching on the pump
 In order to ensure that the pump starts every time, make sure
that counterpressure is reduced to an acceptable level before
start-up. This should also be done during operation after a brief
power cut. Please contact your local KNF partner for further in-
formation (www.knf.com).
Switching off the pump
 KNF recommends: if transferring aggressive liquids, the pump
should be flushed thoroughly prior to switch off (see Section
8.2.1), as this will help to lengthen the service life of the dia-
phragm.
 Restore the system to normal atmospheric pressure (release
hydraulic pressure in pump).
Flow rate NF 1.30
Fig. 5: Flow rate of the NF 1.30
CAUTION
Overpressure on the suction side causes medi-
um to flow through the switched-off pump
 Take steps to ensure that this cannot produce a
hazardous situation.

Servicing Diaphragm Liquid Pump NF 1.30
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8. Servicing
8.1. Servicing schedule
Component Servicing interval
Pump - Regular inspection for external
damage or leaks
Pump head - Clean if the flow rate decreases, the
pump does not work or no vacuum
is created (Chapter 8.2)
Diaphragm, valve
sockets and sealing
washers
- Change as soon as pumping capac-
ity decreases, preferably sooner
Tab. 8
8.2. Cleaning and dismantling
WARNING
Health hazard due to dangerous
substances in the pump
Depending on the medium transferred, caustic burns
or poisoning are possible.
 Wear protective clothing if necessary, e.g. pro-
tective gloves.
 Flush the pump with a neutral liquid and pump
empty.
8.2.1. Flushing the pump
 If transferring aggressive media, KNF recommends flushing
the pump with a neutral fluid under atmospheric conditions for
a few minutes before switching off, to extend the service life of
valves and diaphragm.
8.2.2. Preparations for disassembly
Flush the pump with a suitable neutralising liquid, and make
sure that no dangerous substances are left in the pump
Pump empty
Separate electrical connections
Disconnect hoses from pump head
Qty Tools
1 Torx 10 screwdriver
Tab. 9
Information on procedure
Tools

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8.2.3. Disassembling the pump head
Use the screwdriver to undo the 4 head screws (1).
Remove the connecting plate (3) from the intermediate
plate (6).
Remove the valve sockets (5) and sealing washers (4) from
the intermediate plate (6). Do not use the valve sockets again.
Carefully grip the diaphragm (7) and remove by turning anti-
clockwise.
We recommend replacing the diaphragm (7).
8.2.4. Clean or replace parts
Clean the diaphragm (7), sliding disk (8), support (9), interme-
diate plate (6), connecting plate (3) sealing washers (4) and
head plate (2) with a cloth and then blow off with compressed
air.
8.2.5. Installing the pump head
Place the sliding disk (8) and support (9) on the diaphragm (7).
Screw in the diaphragm (7) and tighten it securely.
Press the edges of the diaphragm all around.
Ensure the sealing washers (4) are dust free and place them in
the centre of the valve socket seat of the intermediate plate (6)
(one sealing washer per seat).
Insert the valve sockets (5).
NOTE: The location and position of the valve sockets is speci-
fied by the tappets on the intermediate plate and the grooves
on the valve sockets. The location / position is different.
Place a dust-free sealing washer (4) in the centre of each valve
socket.
Make sure that the sealing washers are in the centre of the
valve sockets.
Carefully place the connecting plate (3) on top of the interme-
diate plate (6).
NOTE: only one position is possible.
The flow direction arrows on the head plate must be aligned
with the connecting nozzles of the connecting plate.
Place the pump head onto the pump and tighten the four head
screws diagonally.
Reconnect the hoses to the pump head.
Fig. 6
1 Head screws
2 Head plate
3 Connecting plate
4 Sealing washer
5 Valve socket
6 Intermediate plate
7 Diaphragm
8 Sliding disk
9 Support

Servicing Diaphragm Liquid Pump NF 1.30
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CAUTION
Escaping liquid
After assembly the pump may not be leak-tight due
to incorrect assembly, damaged or soiled seal faces,
or other reasons.
 Run the pump for several minutes with a harm-
less liquid at maximum operating pressure.
 Check that pump is leak-tight

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9. Troubleshooting
 Disconnect the pump from the power supply before working on
the pump.
 Ensure that there is no power.
Pump does not transfer
Cause Remedy
Pump not connected to power
supply
 Connect pump to power supply
Power supply is not switched on  Switch on power supply
Connections or hoses are
blocked
 Check connections and hoses
 Remove blockage
External valve is closed or filter
is clogged
 Check external valves and filters
Diaphragm, valve sockets or
seals are worn.
 Replace diaphragm, valve socket and seals
(see Section 8.2.3).
 Replace pump
Tab. 10
Pump is not priming
Cause Remedy
Suction side of pump not con-
nected
 Connect the suction side of the pump
Liquid in the container is too low  Fill container
Hose connections are not leak-
tight
 Secure transition joints between hose and connections with
clamps or other clamping elements
Peripheral valve is closed or
filter is clogged
 Open the peripheral valve
 Clean filter
Pump head is filled with gas.
The system is unable to handle
the pressure on the pressure
side
 Reduce pressure at pressure side
Particles in the pump  Clean the pump head (see Chapter 8.2)
The pump parts are not re-
sistant to the medium to be
transferred
 Replace the pump head with a compatible version
Incorrect interchange of pres-
sure and suction line connec-
tions
 Remove pressure and suction lines and reconnect correctly
Tab. 11

Troubleshooting Diaphragm Liquid Pump NF 1.30
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Flow rate, suction head or pressure head is too low
The pump does not achieve the performance stated in the technical data or on the data sheet.
Cause Remedy
Components in the system
connected to the suction and
pressure sides, such as hoses,
valves or filters, are causing too
much resistance
 Modify installation, check the cross-sections of components
Hose connections are not leak-
tight
 Secure transition joints between hose and hose connector
with clamps or clamping elements
Particles in the pump  Clean the pump head; install suction-side filter if required
(Spare Parts and Accessories), (see Chapter 8.2).
Viscosity of the transferred
medium is too high
 Contact KNF
Incorrect interchange of pres-
sure and suction line connec-
tions
 Remove pressure and suction lines and reconnect correctly
The pump parts are not re-
sistant to the medium to be
transferred
 Replace the pump head with a compatible version
Tab. 12
Fault cannot be rectified
If you are unable to identify any of the above causes, please send
the pump to KNF customer service (see address on first page).
Flush the pump to clear the pump head of any hazardous or
aggressive liquids (see Section 8.2.1).
Dismantle the pump.
Clean the pump (see Section 8.2).
Send the pump, with completed decontamination declaration
(see Chapter 11), to KNF customer service stating the nature
of the transferred medium.

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10. Spare Parts and Accessories
Spare Parts
Spare Part Item Number
per pump
Order No.
Delta PT screw 30x30 1 4 160308
FFKM sealing washer 4 4 060463
PP / FFKM valve socket 5 2 060186
PVDF / FFKM valve socket 5 2 060161
PTFE diaphragm 7 1 019259
PTFE sliding disk 8 1 060728
Tab. 13
Accessories
Accessories Order No.
Filter FS 60 T 165210
Filter FS 60 X 165212
Filter FS 25 T 165211
Filter FS 25 X 165213
Tab. 14

Return of the pump Diaphragm Liquid Pump NF 1.30
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11. Return of the pump
KNF undertakes to repair the pump only under the condition
that the customer provides a certificate of the pumped medium
and cleaning of the pump. For this purpose, please follow the
instructions on www.knf.com/repairs.
Please contact your KNF sales representative directly if you
need additional support for your return service.