Diaphragm Pumps
Operating and
Installation
Instructions
Read and observe these Operating and Installation Instructions!
N 1200 A_E
N 1200 AN.9E
N 1200 S_E
N 1200 ST.9E
N 1400.1 A_E
N 1400.3 A_E
N 1400.1 S_E
N 1400.3 S_E
N 1400.2 A_E
N 1400.2 AN.9E
N 1400.2 S_E
N 1400.2 AT.9E
N 1400.1.2 A_E
N 1400.2 SV.9E
N 1400.1.2 S_E
Contents
KNF Neuberger GmbH
Alter Weg 3
D-79112 Freiburg
Germany
Phone +49-(0)7664-5909-0
Fax
+49-(0)7664-5909-99
E-mail: [email protected]
www.knf.de
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Page
About this document................................................................. 2
Use ........................................................................................... 3
Safety ....................................................................................... 4
Technical Data ......................................................................... 6
Design and function .................................................................. 8
Installation and connection ..................................................... 14
Operation ................................................................................ 18
Servicing ................................................................................. 20
Troubleshooting ...................................................................... 28
Spare parts and accessories .................................................. 30
Decontamination declaration .................................................. 32
KNF 120845-121497 07/13
Translation of original Operating and Installation Instructions, english
Keep for future use!
About this document
Diaphragm Pumps N 1200/1400
1.
About this document
1.1. Using the Operating and Installation Instructions
The Operating and Installation Instructions are part of the pump.
Pass on the Operating and Installation Instructions to the next
owner.
Compliance with the Operating and Installation Instructions is
essential for the safe and reliable operation of the pump.
Failure to do so may result in severe or potentially lifethreatening injury and/or serious damage.
Project pumps
Customer-specific project pumps (pump models which begin with
"PJ" or "PM") may differ from the Operating and Installation Instructions.
For project pumps, also observe the agreed upon specifications.
1.2. Symbols and markings
Warning
A danger warning is located here.
Possible consequences of a failure to observe the
warning are specified here. The signal word, e.g.
WARNING Warning, indicates the danger level.
Measures for avoiding the danger and its consequences are specified here.
Danger levels
Signal word Meaning
warns of immediDANGER
ate danger
WARNING
CAUTION
Consequences if not observed
Death or serious injuries
and/or serious damage are the
consequence.
warns of possible Death or serious injuries
danger
and/or serious damage are
possible.
warns of a possibly Minor injuries or damage are
dangerous situapossible.
tion
Tab. 1
Other information and symbols
An activity to be carried out (a step) is specified here.
1. The first step of an activity to be carried out is specified here.
Additional, consecutively numbered steps follow.
This symbol refers to important information.
2
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Use
2.
Use
2.1. Proper use
The pumps are exclusively intended for transferring gases and
vapors.
Owner's responsibility
Operating parameters and
conditions
Only install and operate the pumps under the operating parameters
and conditions described in chapter 4, Technical data.
Protect the compressors with a pressure relief device between the
pressure side of the compressor and the first shut-off valve.
Only complete pumps may be taken into service.
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water.
The gas-tightness of the connections between the application
pipes and the pump (or the pump connection) must be checked
regularly; with leaky connections, there is a danger that hazardous
gases or vapors may escape from the pump system.
Requirements for
transferred medium
Before using 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, diaphragm and valves with the medium.
Only transfer gases which remain stable under the pressures and
temperatures occurring in the pump.
2.2. Improper use
The pumps may not be operated in an explosive atmosphere.
The pumps are not suitable for transferring liquids.
The pumps are not suitable for transferring dusts.
Pumps designed to create either a vacuum or an overpressure
must not be used for these two purposes simultaneously.
An overpressure must not be applied to the suction side of the
pump.
Pumps with three-phase motor are not provided for the operation
with frequency converter.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
3
Safety
Diaphragm Pumps N 1200/1400
3.
Safety
Note the safety precautions in chapters 6. Installation and
connection, and 7. Operation.
The pumps are built according to the generally recognized rules of
technology and in accordance with the occupational safety and
accident prevention regulations. Nevertheless, dangers can result
during their use which lead to injuries to the user or others, or to
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.
Personnel
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 operating and installation instructions, and in particular the "Safety"
chapter.
Working in a safetyconscious manner
Observe the accident prevention and safety regulations when
performing any work on the pump and during operation.
The pump heads heat up during operation – avoid contact with them.
Handling dangerous media
Handling combustible media
When transferring dangerous media, observe the safety regulations when handling these media.
Be aware that the pumps are not designed to be explosion-proof.
Make sure the temperature of the medium is always sufficiently
below the ignition temperature of the medium, to avoid ignition or
explosion. This also applies for unusual operational situations.
Note that the temperature of the medium increases when the pump
compresses the medium (compressor operation).
Hence, make sure the temperature of the medium is sufficiently
below the ignition temperature of the medium, even when it is
compressed to the maximum permissible operating pressure of the
pump. The maximum permissible operating pressure of the pump
is stated in the technical specifications (chapter 4).
If necessary, consider any external sources of energy, such as
radiation, that may add heat to the medium.
In case of doubt, consult the KNF customer service.
4
Environmental protection
Store all replacement parts in a protected manner and dispose of
them properly in accordance with the applicable environmental
protection regulations. Observe the respective national and international regulations. This especially applies to parts contaminated
with toxic substances.
EC Directives / Standards
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
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Safety
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.
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 pumps conform to the Directive 2011/65/EU (RoHS2).
The pumps conform to the EC Directive 2004/108/EC concerning
Electromagnetic Compatibility.
The following harmonized standards have been used:
Customer service and
repairs
DIN EN 55014-1/2
DIN EN 61000-3-2/3
DIN EN 60204-1
Only have repairs to the pumps carried out by the KNF Customer
Service responsible.
Use only genuine parts from KNF for servicing work.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
5
Technical Data
Diaphragm Pumps N 1200/1400
4.
Technical Data
Pump materials
Pump type
N 1200 ANE
N 1400._ANE
N 1200 ATE
N 1400._ATE
N 1200 AVE
N 1400._AVE
N 1200 SNE
N 1400._SNE
N 1200 STE
N 1400._STE
N 1200 SVE
N 1400._SVE
Material
Pump head
Diaphragm
Valve
G-AlSi10Mg
EPDM
Stainless Steel 1.4310
G-AlSi10Mg
PTFE-coated
Stainless Steel 1.4310
G-AlSi10Mg
FPM
Stainless Steel 1.4310
Stainless Steel 1.4571
EPDM
Stainless Steel 1.4310
Stainless Steel 1.4571
PTFE- coated
Stainless Steel 1.4310
Stainless Steel 1.4571
FPM
Stainless Steel 1.4310
Tab. 2
Pneumatic Performance
Pump type
N 1200 A_E
N 1200 S_E
N 1400.1 A_E
N 1400.1 S_E
N 1400.2 A_E
N 1400.2 S_E
N 1400.1.2 A_E
N 1400.1.2 S_E
N 1400.3 A_E
N 1400.3 S_E
Delivery* (l/min) at
atm. pressure
**
Maximum permissible
operating pressure
(bar g)
Ultimate vacuum
(mbar abs.)
150
6
100
300
-
100
300
6
-
300
-
100
150
-
20
Tab. 3
*Liters in standard state (1,013 mbar)
**Pumps with PTFE- coated diaphragms:
Delivery is about 85 %.
Pneumatic Connections
Pump type
N 1200 A_E
N 1200 S_E
N 1400.1 A_E
N 1400.1 S_E
N 1400.2 A_E
N 1400.2 S_E
N 1400.3 A_E
N 1400.3 S_E
N 1400.1.2 A_E
N 1400.1.2 S_E
Suction side
Pressure side
Thread size M18x1,5
Thread size M22x1,5
Ø 15
Thread size M18x1,5
Ø 18
Thread size M22x1,5
Thread size M18x1,5
Ø 15
Thread size M22x1,5
Ø 18
Thread size M18x1,5
Thread size M18x1,5
Thread size M22x1,5
Thread size M22x1,5
Ø 15
Ø 18
Tab. 4
6
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Diaphragm Pumps N 1200/1400
Technical Data
Electrical Data
Parameter
Electrical Data
Value
See type plate
Tab. 5
Thermal-switch
The pumps with capacitor motor are fitted as standard with a
thermal-switch to protect against overloading.
Weight
Pump type
N 1200 A_E
N 1200 S_E
N 1400 A_E
N 1400 S_E
Weight (kg)
approx. 30,0
approx. 36,0
approx. 35,0
approx. 47,0
Tab. 6
Dimensions
Pump type
N 1200 A_E
N 1200 S_E
N 1400.1 A_E and N 1400.3 A_E
N 1400.1 S_E
N 1400.3 S_E
N 1400.2 A_E and N 1400.1.2 A_E
N 1400.2 S_E and N 1400.1.2 S_E
Dimensions L x H x W [mm]
470 / 320 / 210
470 / 287 / 210
590 / 300 / 350
585 / 307 / 379
585 / 307 / 373
625 / 300 / 350
607 / 307 / 379
Tab. 7
Other parameters
Parameter
Permissible ambient temperature
Value
+ 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]
Gas-tightness* of pump head/
heads (leak rate) (not tested)
For .9 versions:
Gas-tightness* of pump head/
heads (leak rate)
2000
approx. 6 x 10-3 mbar l/s
< 6 x 10-3 mbar l/s
Tab. 8
* After opening the pump head or the pump heads, or replacing the
diaphragm(s) and reed valves the gas tightness is no longer guaranteed. A leak test is able to verify that the original standard of
gas-tightness has been achieved.
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7
Design and function
Diaphragm Pumps N 1200/1400
5.
Design and function
Design N 1200 A_E
1
2
3
4
5
Pneumatic pump inlet
(M18x1,5)
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump outlet
(M18x1,5)
Fig. 1: Diaphragm pump N 1200 A_E
Design N 1200 S_E
1
2
3
4
5
Pneumatic pump outlet
(M22x1,5)
Pneumatic pump inlet
(M22x1,5)
Terminal box (electrical
connection)
Motor
Fan cover
Fig. 2: Diaphragm pump N 1200 S_E
8
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Design and function
Design N 1400.1 A_E
1
2
3
4
5
6
7
Union nut
Pneumatic head connection
Pneumatic pump inlet
(Ø 15)
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump outlet
(M18x1,5)
Fig. 3: Diaphragm pump N 1400.1 A_E
Design N 1400.1 S_E
1
2
3
4
5
6
7
Pneumatic pump outlet
(M22x1,5)
Pneumatic head connection
Terminal box (electrical
connection)
Pneumatic pump inlet
(Ø 18)
Motor
Fan cover
Union nut
Fig. 4: Diaphragm pump N 1400.1 S_E
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9
Design and function
Diaphragm Pumps N 1200/1400
Design N 1400.2 A_E
1
2
3
4
5
6
7
Pneumatic pump inlet
(M18x1,5)
Union nut
Terminal box(electrical
connection)
Motor
Fan cover
Pneumatic pump outlet
(Ø 15)
Pneumatic head connection
Fig. 5: Diaphragm pump N 1400.2 A_E
Design N 1400.2 S_E
1
2
3
4
5
6
7
Union nut
Pneumatic pump inlet
(M22x1,5)
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump outlet
(Ø 18)
Pneumatic head connection
Fig. 6: Diaphragm pump N 1400.2 S_E
10
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Design and function
Aufbau N 1400.1.2 A_E
1
2
3
4
5
6
7
Union nut
Pneumatic head connection
Pneumatic pump inlet
(Ø 15)
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump outlet
(Ø 15)
Fig. 7: Diaphragm pump N 1400.1.2 A_E
Aufbau N 1400.1.2 S_E
1
2
3
4
5
6
7
Union nut
Pneumatic head connection
Terminal box (electrical
connection)
Pneumatic pump inlet
(Ø 18)
Fan cover
Motor
Pneumatic pump outlet
(Ø 18)
Fig. 8: Diaphragm pump N 1400.1.2 S_E
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11
Design and function
Diaphragm Pumps N 1200/1400
Aufbau N 1400.3 A_E
1
2
3
4
5
6
7
Union nut
Pneumatic head connection
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump inlet
(M18x1,5)
Pneumatic pump outlet
(M18x1,5)
Fig. 9: Diaphragm pump N 1400.3 A_E
Aufbau N 1400.3 S_E
1
2
3
4
5
6
7
Union nut
Pneumatic head connection
Terminal box (electrical
connection)
Motor
Fan cover
Pneumatic pump inlet
(M22x1,5)
Pneumatic pump outlet
(M22x1,5)
Fig. 10: Diaphragm pump N 1400.3 S_E
12
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Design and function
Function Diaphragm Pump
1
2
3
4
5
6
7
Outlet valve
Inlet valve
Transfer chamber
Diaphragm
Eccentric
Connecting rod
Pump drive
Fig. 11: Pump headf
Diaphragm pumps transfer, compress (depending on pump version) and evacuate gases and vapors.
The elastic diaphragm (4) is moved up and down by the eccentric
(5) and the connecting rod (6). In the downward stroke it aspirates
the gas to be transferred via the inlet valve (2). In the upward
stroke, the diaphragm presses the medium out of the pump head
via the outlet valve (1). The transfer chamber (3) is hermetically
separated from the pump drive (7) by the diaphragm.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
13
Installation and connection
Diaphragm Pumps N 1200/1400
6.
Installation and connection
Only install the pumps under the operating parameters and conditions described in chapter 4, Technical data.
Observe the safety precautions (see chapter 3).
6.1. Installation of the pump
Before installation, store the pump at the installation location to
bring it up to ambient temperature.
Mounting dimensions
See Fig. 12 (pump series N 1200__E), Fig. 13 (pump series
N 1400.1__E and N 1400.3__E) or Fig. 14 (pump series
N1400.2__E and N 1400.1.2__E) for the mounting dimensions.
The mounting dimensions differ between pumps with cast
heads and pumps with smooth heads (turned part) (see
chapter 4, Technical Data).
* bei N1200 S_E: M 22 x 1,5
Fig. 12: Mounting dimensions pump series N 1200__E (All dimensional
tolerances conform to DIN ISO 2768-1, Tolerance Class V)
* bei N 1400.1S_E und N 1400.3S_E: M 22 x 1,5
Fig. 13: Mounting dimensions pump series N 1400.1__E and
N 1400.3__E (All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
14
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Installation and connection
* bei N 1400.2 S_E: M22 x 1,5
Fig. 14: Mounting dimensions pump series N 1400.2__E and
N 1400.1.2__E (All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Cooling air supply
Installation location
Install the pump so that the motor fan can intake sufficient
cooling air.
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water.
The IP protection class of the pump motor is indicated on the
type plate.
Install 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 vibrations and jolts.
Disengaging
KNF recommends mechanically disengaging the pump from
the piping system. This can be achieved with flexible tubing or
pipes, for example. This will avoid transferring to the system
any pump oscillations that may arise.
6.2. Electrical connection
Extreme danger from electrical shock
Only have the pump connected by an authorized
specialist.
GEFAHR
Only have the pump connected when the power
supply is disconnected.
When connecting the device to a power source, the relevant
standards, directives, regulations, and technical standards
must be observed.
In the electrical installation, arrangements (complying with EN
60335-1) must be made for disconnecting the pump motor
from the electrical supply.
The motors of the pump must be protected according to EN
60204-1 (protection against excess current, or overloading).
For operating current see type plate.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
15
Installation and connection
Diaphragm Pumps N 1200/1400
It is recommended that an additional “Emergency Stop” switch
is installed.
The pump must be installed so that contact with live parts
(electrical connection) is impossible.
Connecting pump
1. Compare the supply data with the data on the motor-plate. For
operating current see type plate.
The voltage must not vary by more than + 10% and - 10% from
that shown on the type-plate.
2. Open terminal box cover.
3. All pumps except versions with 3 phase motor:
Connect the mains cables to the connections L1 and N of the
pump motor.
4. Connection of pumps with 3 phase motor according to Fig. 15
or Fig. 16.
5. Connect the earth (ground) wire to the motor.
6. Close the terminal cover box.
Fig. 15: Y-Connection (high voltage)
Fig. 16: ∆-Connection (low voltage)
16
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Diaphragm Pumps N 1200/1400
Installation and connection
6.3. Pneumatic connection
Connected
components
Pressure relief device
Pump exhaust
Only connect components to the pump which are designed for
the pneumatic data of the pump (see chapter 4, Technical data).
Protect the compressors with a pressure relief device between
the pressure side of the compressor and the first shut-off valve.
If the pump is used as a vacuum pump, safely discharge the
pump exhaust at the pump’s pneumatic outlet.
Connecting pump
A marking on the pump head shows the direction of flow.
1. Remove the protective plugs from the hose connection
threads.
2. Connect the suction line and pressure line (see chapter 4,
table 6 for the mounting dimensions).
3. Lay the suction and pressure line at a downward angle to
prevent condensate from running into the pump.
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17
Operation
Diaphragm Pumps N 1200/1400
7.
Operation
Only operate the pumps under the operating parameters and
conditions described in chapter 4, Technical data.
Make sure the pumps are used properly (see chapter 2.1).
Make sure the pumps are not used improperly (see chapter
2.2).
Observe the safety precautions (see chapter 3).
The pumps are intended for installation. Before putting them
into service it must be established that machinery or equipment
in which they are installed meets the relevant regulations.
Hazard of the pump head bursting due to excessive
pressure increase
Do not exceed max. permissible operating
pressure (see chapter 4, Technical data).
WARNING
Monitor pressure during operation.
If the pressure exceeds the maximum permissible operating pressure, immediately switch off
pump and eliminate fault (see chapter 9. Troubleshooting).
Only throttle or regulate the air or gas quantity in
the suction line to prevent the maximum permissible operating pressure from being exceeded.
If the air or gas quantity in the pressure line is
throttled or regulated, make sure that the maximum permissible operating pressure is not exceeded.
Ensure that the pump outlet is not closed or
constricted.
Excessive pressure (with all of the related hazards) can be
prevented by placing a bypass line with a pressure-relief valve
between the pressure and suctions sides of the pump. For
further information, contact our technical adviser (see front
page for telephone number).
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
WARNING thermal switch, the pump will restart automatically
after cooling down.
Take all necessary care to prevent this leading
to a dangerous situation.
Pump standstill
18
With the pump at a standstill, open pressure and suction lines
to normal atmospheric pressure.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Operation
The pump may not start up against pressure or vacuum during
switch-on. This also applies in operation following a brief power
failure. If a pump starts against pressure or vacuum, it may
block. This activates the thermal switch, and the pump
switches off.
Make sure that normal atmospheric pressure is present in the
lines during switch-on.
Vapors as media
The life of the diaphragm is prolonged if the formation of condensate is avoided. Therefore the following precautions should be
taken:
Run the pump for a few minutes to warm it up before handling
saturated or nearly saturated vapours.
KNF recommends: When transferring aggressive media, flush
the pump prior to switch-off (see chapter 8.2.1) to increase the
service life of the diaphragm.
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19
Servicing
Diaphragm Pumps N 1200/1400
8.
Servicing
8.1. Servicing schedule
Component
Pump
Servicing interval
- Regular inspection for external damage or leaks
Tube connection
- Regular inspection for external damage or leaks
Diaphragm and reed - Replace if bent or worn
valves
- Replace at the latest, when pump
output decreases
Tab. 9
8.2. Cleaning
8.2.1. Flushing pump
KNF recommends: When transferring aggressive media, flush
the pump under atmospheric conditions some minutes with air
(or, if necessary for safety reasons, with an inert gas) prior to
switch-off to increase the service life of the diaphragm.
8.2.2. Cleaning pump
Only use solvents for cleaning if the head materials cannot be
attacked (check the resistance of the material).
If compressed air is available, blow out the components.
8.3. Replacing diaphragm, reed valves and sealings
8.3.1. Pump types with stainless steel heads
For .9 versions (increased gas-tightness) see b) in this chapter.
a) Type range
N1200 S_E
N1400 S_E
Conditions
Motor disconnected from mains and de-energizedi
Pump clean and free of dangerous substances
Tubes/pipes removed from pump’s pneumatic inlet and
outlet
Information on procedure
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
WARNUNG burns or poisoning are possible.
Wear protective clothing if necessary, e.g.
protective gloves.
Clean pump with suitable measures.
20
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Servicing
For two-headed pumps:
In principle, the maintenance work on both heads should be
carried out at the same time.
With multi-head pumps, parts of the individual pump heads can be
confused.
Replace diaphragm and reed valves of the individual pump
heads consecutively.
Spare parts
Spare part*
Diaphragm
Position**
(B)
Cross recessed
countersunk head
screw
O-Ring
(G)
(M)
Reed valves (L/N)
(L) and (N)
Tab. 10
Tools and material
Quantity
1
1
1
1
1
1
1
Tab. 11
Quantity
1 (per pump
head)
3 (per pump
head)
2 (per pump
head)
2 (per pump
head)
* according to spare parts list, chapter 10
** According to Fig. 17
Tools/Material*
Allen key 5 with torque indicator
Phillips screwdriver No. 2
Screwdriver blade width 4.5 mm
Screwdriver blade width 5.5 mm
Fork wrench 30 mm
Fork wrench 27 mm (for two-headed pumps only)
Pencil
* according to accessories list, chapter 10
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21
Servicing
Diaphragm Pumps N 1200/1400
Housing
Diaphragm
Intermediate plate
Head
Hexagon socket head cap
screw
(F) Retainer plate
(G) Cross recessed countersunk head screw
(not .9-pump types)
(H) Connecting rod
(J) Slotted cheese head screw
(K) Slotted cheese head screw
(L) Reed valve
(M) O-Ring
(N) Reed valve
(A)
(B)
(C)
(D)
(E)
Fig. 17: Pump parts (Stainless steel version)
The following item terms refer to Fig. 17, unless otherwise
indicated.
Removing pump head
1. Take the steps necessary to gain access to the motor cooling
fan:
Undo the screws that hold the fan cover (Fig. 2/5, p. 8 or
Fig. 4/6, p. 9, Fig. 6/5, p. 10, Fig. 8/5, p. 11 and Fig. 10/5,
p. 12) and remove the fan cover.
2. Only for two-headed pumps:
Remove the pneumatic connection (.3 models), or connections
(.1, .2 or .1.2 models) between the pump heads, loosen the union nuts (Fig. 4/7, p. 9 or Fig. 6/1, p. 10, Fig. 8/1, p. 11 and
Fig. 10/1, p. 12) to do so
3. Mark the position of housing (A), intermediate plate (C) and
head (D) relative to each other by a drawing line with a pencil.
This helps avoid incorrect assembly later.
4. Undo the six hexagon socket head cap screws (E); lift off head
(D) and intermediate plate (C).
22
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Servicing
5. For two-headed pumps:
Carry out steps 3 and 4 for the second pump head.
Changing diaphragm
1. Undo the three cross recessed countersunk head screws (G).
2. Remove retainer plate (F) and diaphragm (B).
3. Inspect all parts for dirt and clean them if necessary.
4. Turn the fan until the connecting rod (H) is in mid-stroke.
5. Lay the retainer plate (F) on the new diaphragm (B); place the
diaphragm with retainer plate on the connecting rod (H).
6. Tighten the three new cross recessed countersunk head
screws (G) firmly.
7. For two-headed pumps:
Carry out steps 1 to 6 for the second pump head.
Changing reed valves
1. Remove the two O-rings (M) from the intermediate plate.
2. Undo the reed valves screws (J) and (K).
3. Inspect all parts for dirt and clean them if necessary.
4. Replace reed valves (L) and (N).
5. For two-headed pumps:
Carry out steps 1 to 4 for the second pump head.
Mounting pump head
1. Place intermediate plate (C) on housing (A) according to the
mark made previously (at the same time, keep the diaphragm
in its mid-position by holding the motor fan).
2. Fit the two new O-rings (M) in the intermediate plate (C).
3. Place head (D) on intermediate plate (C) according to the
mark made previously.
4. Tighten the hexagon socket head cap screws (E) uniformly and
diagonally (tightening torque: 14 Nm).
5. Turn the fan to check that the pump rotates freely.
6. Remount fan cover (Fig. 2/5, p. 8 or Fig. 4/6, p. 9, Fig. 6/5,
p. 10, Fig. 8/5, p. 11 and Fig. 10/5, p. 12 ).
7. For two-headed pumps:
Remount the pneumatic connection(s).
b) .9 versions (increased gas tightness)
In principle, maintenance is performed as described in a), but with
the following exceptions:
Cross recessed countersunk head screws (G) are not present
Retainer plate (F) is removed and retightened with a
wrench for retainer plate (see chapter 10, Spare parts and
accessories).
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
23
Servicing
Diaphragm Pumps N 1200/1400
Please ask KNF for the order numbers of spare parts (see
last page for phone number)
8.3.2. Pump types with aluminium head
For .9 versions (increased gas-tightness) see b) in this chapter.
a) Type range
N1200 A_E
N1400 A_E
Conditions
Motor disconnected from mains and de-energizedi
Pump clean and free of dangerous substances
Tubes/pipes removed from pump’s pneumatic inlet and
outlet
Information on procedure
Health hazard due to dangerous substances
in the pump!
Depending on the substance transferred, caustic
WARNUNG burns or poisoning are possible.
Wear protective clothing if necessary, e.g.
protective gloves.
Clean pump with suitable measures.
For two-headed pumps:
In principle, the maintenance work on both heads should be
carried out at the same time.
With multi-head pumps, parts of the individual pump heads can be
confused.
Replace diaphragm and reed valves of the individual pump
heads consecutively.
Spare parts
Spare part*
Diaphragm
Position**
(B)
Sealing
(D)
Cross recessed
countersunk head
screw
Reed valves (L/N)
(M)
Tab. 12
24
(L) and (N)
Quantity
1 (per pump
head)
1 (per pump
head)
3 (per pump
head)
2 (per pump
head)
* according to spare parts list, chapter 10
** according to Fig. 18
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Tools and material
Servicing
Quantity
1
1
1
1
1
1
1
Tools/Material*
Allen key 5 with torque indicator
Phillips screwdriver No. 2
Screwdriver blade width 4.5 mm
Screwdriver blade width 5.5 mm
Fork wrench 30 mm
Fork wrench 27 mm (for two-headed pumps only)
Pencil
Tab. 13
* according to accessories list, chapter 10
Housing
Diaphragm
Headf
Sealing
Cover plate
Hexagon socket head cap
screw
(G) Hexagon socket head cap
screw
(H) Hexagon socket head cap
screw
(J) Slotted cheese head screw
(K) Slotted cheese head screw
(L) Reed valve
(M) Cross recessed countersunk head screw
(not .9-pump types)
(N) Reed valve
(P) Roll pin
(R) Retainer plate
(S) Connecting rod
(A)
(B)
(C)
(D)
(E)
(F)
Fig. 18: Pump parts (aluminium version)
The following item terms refer to Fig. 18, unless otherwise
indicated.
Removing pump head
1. Take the steps necessary to gain access to the motor cooling
fan:
Undo the screws that hold the fan cover (Fig. 1/4, p. 8 or
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
25
Servicing
Diaphragm Pumps N 1200/1400
Fig. 3/6, p. 9, Fig. 5/5, p. 10, Fig. 7/6, p. 11 and Fig. 9/5, p.12)
and remove the fan cover.
2. Only for two-headed pumps:
Remove the pneumatic connection (.3 models), or connections
(.1, .2 or .1.2 models) between the pump heads, loosen the union nuts (Fig. 3/1, p. 9 or Fig. 5/2, p. 10, Fig. 7/1, p. 11 and
Fig. 9/1, p.12) to do so
3. Mark the position of housing (A) and head (C) relative to each
other by a drawing line with a pencil. This helps avoid incorrect
assembly later.
4. Undo the hexagon socket head cap screws (E) and (G) (two
screws each) and lift off cover plate (E) and sealing (D) from
housing.
5. Undo the hexagon socket head cap screws (H) (four screws)
and lift off head (C).
6. For two-headed pumps:
Carry out steps 3 to 4 for the second pump head.
Changing diaphragm
1. Undo the three cross recessed countersunk head screws (M).
2. Remove retainer plate (R) and diaphragm (B).
3. Inspect all parts for dirt and clean them if necessary.
4. Turn the fan until the connecting rod (S) is in mid-stroke.
5. Position the new diaphragm (B) on the connecting rod (S).
6. Lay the retainer plate (R) on the new diaphragm (B). The roll
pin (P) fits in the small hole in the retainer plate.
7. Tighten the three new cross recessed countersunk head
screws (M) firmly.
8. For two-headed pumps:
Carry out steps 1 to 7 for the second pump head.
Changing reed valves
1. Undo reed valve screws (J) and (K).
2. Inspect all parts for dirt and clean them if necessary.
3. Replace reed valves (L, 2 pieces) and (N, 1 piece).
4. For two-headed pumps:
Carry out steps 1 to 3 for the second pump head.
Mounting pump head
1. Place head (C) on the diaphragm according to the marks made
previously, but check that the head of the valve fastening
screw (K) lies directly above the hole in the retainer plate (R).
2. Place the new sealing (D) and cover plate (E) on housing (A).
3. Tighten the hexagon socket head cap screws (F), (G) and (H)
uniformly and diagonally (tightening torque: 14 Nm).
4. Turn the fan to check that the pump rotates freely.
26
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Servicing
5. Remount fan cover (Fig. 1/4, p. 8 or Fig. 3/6, p. 9, Fig. 5/5,
p. 10, Fig. 7/6, p. 11 and Fig. 9/5, p.12).
6. For two-headed pumps:
Remount the pneumatic connection(s).
b) .9 versions (increased gas tightness)
In principle, maintenance is performed as described in a), but with
the following exceptions:
Cross recessed countersunk head screws (M) are not present
Retainer plate (R) is removed and retightened with a
wrench for retainer plate (see chapter 10, Spare parts and
accessories).
Please ask KNF for the order numbers of spare parts (see
last page for phone number)
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
27
Troubleshooting
Diaphragm Pumps N 1200/1400
9.
Troubleshooting
Extreme danger from electrical shock!
Disconnect the pump power supply before working
on the pump.
Make sure the pump is de-energized and secure.
DANGER
Check the pump (see Tab. 14 and 15).
Pump does not transfer
Cause
Pump is not connected with the
power source.
No voltage in the power source
Fault remedy
Connect pump with the power source.
Thermal switch has operated
following to over-heating.
Connections or lines blocked.
External valve is closed or filter
is clogged.
Condensate has collected in
pump head.
Working diaphragm or reed
valves are worn.
Check room fuse and switch on if necessary.
Disconnect pump from mains.
Allow pump to cool.
Trace cause of over-heating and eliminate it.
Check connections and lines.
Remove blockage.
Check external valves and filters.
Detach the condensate source from the pump.
Flush the pump under atmospheric conditions some minutes
with air (if necessary for safety reasons: with an inert gas).
Replace working diaphragm, safety diaphragm and, if necessary, reed valves (see chapter 8.3).
Tab. 14
Flow rate, pressure or vacuum too low
The pump does not achieve the output specified in the Technical data or the data sheet.
Cause
Fault remedy
Condensate has collected in
Detach the condensate source from the pump.
pump head.
Flush the pump under atmospheric conditions some minutes
with air (if necessary for safety reasons: with an inert gas).
There is gauge pressure on
Change the pressure conditions.
pressure side and at the same
time vacuum or a pressure
above atmospheric pressure on
suction side.
Pneumatic lines or connection
Disconnect pump from system to determine output values.
parts have an insufficient cross Eliminate throttling (e.g. valve) if necessary.
section.
Use lines or connection parts with larger cross section if
necessary.
Leaks occur on connections,
Eliminate leaks.
lines or pump head.
Connections or lines completely Check connections and lines.
or partially jammed.
Remove the jamming parts and particles.
Head parts are soiled.
Clean head components.
Working diaphragm or reed
valves are worn.
Replace working diaphragm, safety diaphragm and, if necessary, reed valves (see chapter 8.3).
Tab. 15
28
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Troubleshooting
Fault cannot be rectified
If you are unable to determine any of the specified causes, send
the pump to KNF Customer Service (see last page for the address).
1. Flush the pump under atmospheric conditions some minutes
with air (if necessary for safety reasons: with an inert gas) to
free the pump head of dangerous or aggressive gases (see
chapter 8.2.1).
2. Clean the pump (see chapter 8.2.2).
3. Send the pump to KNF with a filled out decontamination declaration (see chapter 11) and specification of the medium transferred.
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
29
Spare parts and accessories
Diaphragm Pumps N 1200/1400
10. Spare parts and accessories
Spare parts
For .9 versions (increased gas tightness) please ask KNF for
the order numbers of spare parts (see last page for phone
number).
N 1200 SNE, N 1400 SNE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
O-Ring
Position*
(B)
(G)
Order No.
014274
110732
(L,N)
(M)
003475
007524
Tab. 16
*according to Fig. 17
N 1200 SVE, N 1400 SVE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
O-Ring
Position*
(B)
(G)
Order No.
003476
110732
(L,N)
(M)
003475
002458
Tab. 17
* according to Fig. 17
N 1200 STE, N 1400 STE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
O-Ring
Position*
(B)
(G)
Order No.
003478
110732
(L,N)
(M)
003475
006864
Tab. 18
* according to Fig. 17
N 1200 ANE, N 1400 ANE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
Sealing
Tab. 19
30
Position*
(B)
(M)
Order No.
014274
110732
(L,N)
(D)
003475
110686
* according to Fig. 18
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
Diaphragm Pumps N 1200/1400
Spare parts and accessories
N 1200 AVE, N 1400 AVE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
Sealing
Position*
(B)
(M)
Order No.
003476
110732
(L,N)
(D)
003475
027274
Tab. 20
* according to Fig. 18
N 1200 ATE, N 1400 ATE
Spare part
Diaphragm
Cross recessed countersunk
head screw
Reed valve
Sealing
Position*
(B)
(M)
Order No.
003478
110732
(L,N)
(D)
003475
027274
Tab. 21
* according to Fig. 18
Accessories
Accessories
Silencer/ Filter
Pressure relief valve
0,5 - 4 bar
Pressure relief valve
4 - 8 bar
Wrench for retainer
plate
for pump type
N 1200 A_E
N 1400.1 A_E
N 1400.2 A_E
N 1400.3 A_E
N 1200__E
N 1400.2 __E
N 1200__E
N 1400.2 __E
N 1200 AN.9E
N 1200 ST.9E
N 1400.2 AN.9E
Order No.
000358
000355
000357
018816
Tab. 22
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
31
Decontamination declaration
Diaphragm Pumps N 1200/1400
11. Decontamination declaration
The condition for the repair of a pump by KNF is the certification of the customer on the transferred media and on the
cleaning of the pump (decontamination declaration).
Copy this page.
Enter the pump model, the Serial No. and the transferred
media in the form below and sent the signed form together with
the flushed and cleaned pump to KNF Customer Service (see
last page for the address).
Customer decontamination declaration for
repair order
We herewith confirm that the following media have been pumped
with the pump listed below, and that the pump has been flushed
and cleaned.
Pump model
Serial No.
Fed media
The pump contains neither aggressive, biological, radioactive,
poisonous nor other dangerous media.
Company
32
Date/Signature
Translation of original Operating and Installation Instructions, english, KNF 120845-121497 07/13
KNF worldwide
Benelux
Netherlands
KNF Verder B.V.
Utrechtseweg 4a
NL-3451 GG Vleuten
Tel. 0031 (0)30 677 92 40
Fax 0031 (0)30 677 92 47
E-mail: [email protected]
www.knf-verder.nl
Benelux
Belgium, Luxembourg
KNF Verder N.V.
Kontichsesteenweg 17
B-2630 Aartselaar
Tel. 0032 (0)3 8719624
Fax 0032 (0)3 8719628
E-mail: [email protected]
www.knf.be
China
KNF Neuberger Trading
(Shanghai) Co., Ltd
No. 36 Lane 1000
Zhang Heng Road
Shanghai 201203, P.R. China
Tel. 0086 (0)21 685 965 66
Fax 0086 (0)21 339 006 26
E-mail: [email protected]
www.knf.com.cn
Germany
KNF Neuberger GmbH
Alter Weg 3 D-79112 Freiburg
Tel. 0049 (0)7664 5909-0
Fax 0049 (0)7664 5909-99
E-mail: [email protected]
www.knf.de
France, Morocco,
Algeria
KNF Neuberger
4, Bld. d’Alsace Z.I.
F-68128 Village-Neuf
Tel. 0033 (0)389 70 35 00
Fax 0033 (0)389 69 92 52
E-mail: [email protected]
www.knf.fr
Great Britain
KNF Neuberger U.K. Ltd.
Avenue 2
Station Lane
Industrial Estate
Witney Oxon OX28 4FA
Tel. 0044 (0)1993 77 83 73
Fax 0044 (0)1993 77 51 48
E-mail: [email protected]
www.knf.co.uk
Sweden, Denmark,
Finland, Norway
KNF Neuberger AB
Mejerivägen 4,
P.O. Box 44060
SE-10073 Stockholm
Tel. 0046 (0) 87445113
Fax 0046 (0) 87445117
E-mail: [email protected]
www.knf.se
India
KNF Pumps + Systems
(India) Pvt. Ltd.
RAJIV GANDHI INFOTECH PARK
Phase 1
Ganga Estate, Survey No. 152/2/2
Above AXIS BANK
Hinjewadi
Pune 411 057
Tel. 0091 (0)20 640 13 923
0091 (0)20 640 08 923
Fax 0091 (0)20 229 33 923
E-mail: [email protected]
www.knfpumps.in
Switzerland
Sales
KNF Neuberger AG
Stockenstrasse 6
CH-8362 Balterswil
Tel. 0041 (0)71 973 993 0
Fax 0041 (0)71 973 993 1
E-mail: [email protected]
www.knf.ch
Italy
KNF ITALIA S.r.l.
Via Flumendosa, 10
I-20132 Milano
Tel. 0039 02 27 20 38 60
Fax 0039 02 27 20 38 48
E-mail: [email protected]
www.knf.it
Japan
KNF Japan Co.Ltd.
Across Shinkawa Bldg. Annex 3F
1-16-14 Shinkawa, Chuo-ku,
Tokyo, Japan 104-0033
Tel. 0081 (0)3 3551-7931
Fax 0081 (0)3 3551-7932
E-mail: [email protected]
www.knf.co.jp
Taiwan
KNF Neuberger Ltd.
9-2 FL., No., 24, Lane 123,
Section 6,
Ming Chuan East Road
Taipei City, Taiwan
Tel. 00886-2-2794-1011
Fax 00886-2-8792-1648
E-mail: [email protected]
www.knftwn.com.tw
USA, Canada, South America
KNF NEUBERGER, INC.
Two Black Forest Road
Trenton, New Jersey
08691-1810
Tel. 001 (609) 890 86 00
Fax 001 (609) 890 83 23
E-mail: [email protected]
www.knfusa.com
South America
Direct Phone: 001 609 649 1010
E-mail: [email protected]
Korea
KNF Neuberger Ltd.
Woosan Bldg.RM#202,
336-4, Hwikyung-Dong
Dongdaemun-Ku.,
130-090, Seoul
Tel. 0082 (0)2 959-0255/6
Fax 0082 (0)2 959-0254
E-mail: [email protected]
www.knfkorea.com
KNF product centres
Product centre for gas
pumps:
Germany
KNF Neuberger GmbH
Alter Weg 3
D-79112 Freiburg
Phone 0049(0)7664 5909-0
Fax 0049(0)7664 5909-99
E-mail: [email protected]
www.knf.de
Product centre for fluid
pumps:
Switzerland
KNF FLODOS AG
Wassermatte 2
CH-6210 Sursee
Phone 0041(0)41 925 00 25
Fax 0041(0)41 925 00 35
E-mail: [email protected]
www.knf-flodos.ch
Product centre for micro
pumps:
Switzerland
KNF Micro AG
Zelglimatte 1b
CH-6260 Reiden
Tel. 0041(0)62 787 88 88
Fax 0041(0)62 787 88 99
E-mail: [email protected]
www.knf-micro.ch