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DIAPHRAGM LIQUID PUMP
NF 300, NF 1.300
NF 300 KP .51 .27 DC 12V
.51 / - [Ch. 2]
KP / KT / TT / FT [Ch. 4]
300 / 1.300
NF / UNF / JNF
- / PMLxxxx / PLxxxx [Ch. 1]
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 and has no
technical relevance
KNF Flodos AG
Wassermatte 2
6210 Sursee, Switzerland
Tel. +41 (0)41 925 00 25
Fax +41 (0)41 925 00 35
www.knf.com
info.flodos@knf.com
KNF Flodos BA_NF300_EN_08_068697.docx
Translated from the Original Operating and Installation Instructions
Supply voltage [Ch. 4]
DC / DCB
0.27 / - [Ch. 5]
Contents
1. About this document ................................................................. 2
2. Use ........................................................................................... 3
3. Safety ....................................................................................... 5
4. Technical data .......................................................................... 7
5. Assembly and function ........................................................... 10
6. Installation and connection ..................................................... 11
7. Operation ................................................................................ 17
8. Servicing ................................................................................. 20
9. Troubleshooting ...................................................................... 24
10. Spare parts and accessories .................................................. 26
11. Return of the pump ................................................................. 27
Page
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Summary of Contents for KNF NF 300
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Page 1: Table Of Contents
DIAPHRAGM LIQUID PUMP NF 300, NF 1.300 NF 300 KP .51 .27 DC 12V Supply voltage [Ch. 4] DC / DCB 0.27 / - [Ch. 5] .51 / - [Ch. 2] KP / KT / TT / FT [Ch. 4] 300 / 1.300... -
Page 2: About This Document
Diaphragm liquid pump NF 300 About this document About this document 1.1. Use of the operating and installation instruc- tions The operating and installation instructions are part of the pump. ➔ Pass on the operating and installation instructions to the next owner. -
Page 3: Use
Diaphragm liquid pump NF 300 2.1. Proper use The pumps are intended for transferring and metering liquids. Owner's responsibility Operating parameters and Only install and operate the pumps under the operating parameters conditions and conditions described in Chapter 4, Technical data. - Page 4 ➔ Because the cleaning requirements of the diaphragm liquid pumps depend on the application, KNF is unable to guarantee cleaning options. The responsibility for cleaning the pump(s) therefore lies with the user. While the NSF/ANSI 169 standard regulates OEM products, it does not define cleaning methods for specific OEM products.
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Page 5: Safety
Diaphragm liquid pump NF 300 Safety 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 pertinent 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. - Page 6 EN 55014 - 1 ▪ EN 61000 - 6 - 1 Customer service and All repairs to the pump(s) must be carried out by the relevant KNF repairs Customer Service team. Only use KNF original parts for all maintenance work.
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Page 7: Technical Data
Diaphragm liquid pump NF 300 Technical data Technical data Pump materials The pump type KP / KP.51 stands for: Assembly Material Pump head * Valve plate EPDM Diaphragm PTFE-coated Resonating diaphragm PTFE Diaphragm. 27 EPDM Tab. 2 according to DIN ISO 1629 and 1043.1... - Page 8 Parameter Value 3.0 1), 2) Flow rate [l/min] Max. permissible pressure NF 300 [bar g] Max. permissible pressure NF 1,300 [bar Suction head [mWG] Tab. 6 Measured with water at 20°C / at atmospheric pressure Flow rates may vary from the values shown, depending on fluid viscosi- ty, pump head material and the hoses / hose connectors used.
- Page 9 Diaphragm liquid pump NF 300 Technical data Specifications NF 1.300 DCB Motor voltage 12V/24V Power consumption [W] 35 / 35 Max. current at max. load [A] 2.5 / 1.66 Max. motor current [A] 2.5 / 2 Protection class [-] IP 54...
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Page 10: Assembly And Function
This pump type is the simplest version of the listed products and pumps media at the specified flow rate. NF 300 .27 version (specified flow rate with overpressure limiting) If the diaphragm liquid pump is operating against a closed system, the delivery pressure quickly exceeds the maximum permissible values. -
Page 11: Installation And Connection
➔ Mounting dimensions (see Fig. 3 to 8) Mounting dimensions Fig. 5: Mounting dimensions NF 300 DC Fig. 6: Mounting dimensions NF 1.300 DC KNF Flodos BA_NF300_EN_08_068697.docx Translated from the Original Operating and Installation Instructions... - Page 12 Diaphragm liquid pump NF 300 Installation and connection Fig. 7: Mounting dimensions NF 300 DCB Fig. 8: Mounting dimensions NF 1.300 DCB KNF Flodos BA_NF300_EN_08_068697.docx Translated from the Original Operating and Installation Instructions...
- Page 13 (Fig. 9). Fig. 9: Optimal mounting orienta- tion / horizontal ➔ KNF recommends mechanically decoupling the pump from the Decoupling pipework system, e.g. by using flexible hoses or pipes. This prevents any oscillations of the pump being transferred to the system.
- Page 14 Diaphragm liquid pump NF 300 Installation and connection Touch and foreign object pro- For pumps with alternating current motors: tection Danger of injury during operation ➔ Take protective measures against touching parts which are energised (live), such as electrical connections or windings.
- Page 15 Diaphragm liquid pump NF 300 Installation and connection Connecting the pump Make sure that the power supply data match the data on the motor type plate. The current consumption can be found on the type plate. Connect the motor cables. Electrical data Chapter 4.
- Page 16 Diaphragm liquid pump NF 300 Installation and connection 6.3.1. Connecting the pump Arrows on the pump head indicate the flow direction. Remove the protective caps from the connections. Connect the inlet and outlet lines. Keep the inlet line as short as possible in order to keep the priming process as brief as possible.
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Page 17: Operation
Further information is available from your KNF adviser (Telephone number: see first page). ➔ If the pump stops running, reduce the pressure in the system Pump standstill until it is at normal atmospheric pressure. - Page 18 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 a KNF pump specialist for further information (Telephone number: see first page). Turning the pump on ➔...
- Page 19 Diaphragm liquid pump NF 300 Operation Fig. 11: Flow rate of pump NF 300 DC / DCB Flow rate NF 1.300 Fig. 12: Flow rate of pump NF 1.300 DC / DCB KNF Flodos BA_NF300_EN_08_068697.docx Translated from the Original Operating and Installation Instructions...
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Page 20: Servicing
➔ Rinse the pump with a neutral liquid and pump empty. 8.2.1. Flushing the pump ➔ If pumping aggressive media, KNF recommends flushing the pump with air under atmospheric conditions for several minutes prior to switch off (if necessary for safety reasons: use an inert gas). - Page 21 ➔ The method of assembly will depend on the pump type. For O-ring ø14.5 Compression spring this reason, please proceed with the section that corresponds U-washer ø9 to the pump type you are using (NF 300 version or NF 300.27 Support.27 version). Diaphragm.27 ➔ Re-connect the hoses to the pump head.
- Page 22 Diaphragm liquid pump NF 300 Servicing Place the washers (18) for the head screws (2) on the through holes of the head plate (1) (no washers for FT). Push the four head screws (2) into the through holes on the pump head.
- Page 23 Diaphragm liquid pump NF 300 Servicing 8.3. Replacing parts Same procedure as in section 8.2, "Cleaning" – with the exception of step 6: Instead of cleaning the diaphragm (16), O-ring Ø14.5 (5), O-ring Ø39 (11), diaphragm.27 (9), resonating diaphragm (10) and valve plate (14), these components must be replaced.
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Page 24: Troubleshooting
Diaphragm liquid pump NF 300 Troubleshooting Troubleshooting For pumps with alternating current motors: Risk of electric shock, danger of death ➔ Before working on the pump disconnect the pump from the power supply. DANGER ➔ Ensure that the pump is de-energised. - Page 25 Fault cannot be rectified If you are unable to identify any of the above causes, please send the pump to KNF customer services (see address on last page). Flush the pump to clear the pump head of any hazardous or aggressive fluids (see Section 8.2.1).
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Page 26: Spare Parts And Accessories
Spare parts and accessories 10. Spare parts and accessories Spare parts kit Spare parts kit Order No. Spare parts kit NF 300 KP / KP.51 068690 Spare parts kit NF 1.300 KP / KP.51 069727 Spare parts kit NF 300 KT / TT 068691 Spare parts kit NF 1.300 KT / TT... -
Page 27: 11. Return Of The Pump
Return of the pump 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. - Page 28 KNF worldwide Please find your local KNF partners at: www.knf.com...
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