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Micro-diaphragm liquid pump
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-flodos.ch
info@knf-flodos.ch
KNF Flodos BA_NF5_EN_01_152858.docx
Translated from the Original Operating and Installation Instructions
NF 5
NF 5 RP .51 DC-S 12V
DC-S / DC-M / DC-L / DCB-4
.51 / - [Ch. 2]
RP / RT
[Ch. 4]
5
NF
- / PMLxxxx / PLxxxx [Ch. 1]
Contents
1. About this document ................................................................. 2
2. Use ........................................................................................... 3
3. Safety ....................................................................................... 5
4. Technical data .......................................................................... 7
5. Assembly and function ........................................................... 11
6. Installation and connection ..................................................... 12
7. Operation ................................................................................ 15
8. Servicing ................................................................................. 18
9. Troubleshooting ...................................................................... 20
10. Decontamination declaration .................................................. 22
Supply voltage [Ch. 4]
Keep for future reference!
Page
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Summary of Contents for KNF NF5
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Page 1: Table Of Contents
Contents Page 1. About this document ..............2 2. Use ................... 3 KNF FLODOS AG 3. Safety ..................5 Wassermatte 2 4. Technical data ................7 6210 Sursee, Switzerland 5. Assembly and function ............11 Tel. -
Page 2: About This Document
This indicates an activity (step) that needs to be carried out. This indicates the first step of an activity to be carried out. Any additional steps required are consecutively numbered. This symbol refers to important information. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... -
Page 3: Use
FDA certificate of conformity. NSF: National Sanitary Foundation FDA: Food and Drug Administration ANSI: American National Standard Institute * Pumps with other customer-specific certified material combinations are available on request. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... - Page 4 Because the cleaning requirements of the micro-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
Ensure that the pump is disposed of in an environmentally appropriate manner at the end of its useful life. Use appro- priate waste collection systems for the disposal of end-of- life equipment. Used pumps contain valuable recyclable materials. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... - Page 6 NF 5 DCB-4 EN 61000-6-2 EN 61000-6-3 (incl. EN 55022 / EN 55011) Customer services 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
Flow rates may vary from the values shown, depending on fluid viscosi- ty, pump head material and the hoses / hose connectors used. Hydraulic connections Parameter Value Recommended hose size ID [mm] ≤ 3 Tab. 5 KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... - Page 8 Max. I load [A] 0.15…0.055 Max. perm. current consumption 0.65 Protection class [-] IP40 Weight Tab. 9 The weight may differ slightly from the stated value, depending on the version. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
- Page 9 In the case of type NF 5 DCB-4, the supply voltage is not designed for operation with pulse-width modulated voltages (PWM). However, a PWM signal (frequency ≥ 500Hz ) can be used to control the control voltage. Electrostatic sensitive components (ESD) KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
- Page 10 + 5 to + 40 ambient temperature range [° C] Permissible media temperature [° C] + 5 to + 80 Permissible kinematic viscosity of the ≤ 150 media [cSt] Tab.11 KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
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Page 11: Assembly And Function
(2). During the up stroke, it forces medium out of the pump head through the exhaust valve (1). The diaphragm hermetically seals off the working chamber (3) from the pump drive (7). KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... -
Page 12: Installation And Connection
Mounting dimensions Mounting dimensions (see Fig. 3 to 6) Fig. 3: Mounting dimensions NF 5 DC-S Fig. 4: Mounting dimensions NF 5 DC-M KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... - Page 13 Generally speaking, the pump can be mounted in any orienta- tion. The venting and accuracy of the pump is optimal if in- stalled as shown in the illustration (Fig. 7). Fig. 7: Optimal mounting orien- tation KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
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Page 14: Electrical Connection
Check that the hoses and transition joints are fitted correctly and securely. Check that the system is leak-tight. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... -
Page 15: Operation
Excessive pressures and its inherent dangers can be prevent- ed by using a bypass system with a pressure relief valve between the pressure and suction side of the pump. Further information is available from your KNF adviser (Telephone number: see first page). Pump standstill If the pump stops running, reduce the pressure in the system until it is at normal atmospheric pressure. - Page 16 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 In order to guarantee that the pump can start every time it is advisable to reduce the back pressure to an acceptable level.
- Page 17 Fig. 10: Flow rate of pump NF 5 DCB-4 70.0 60.0 50.0 40.0 30.0 20.0 10.0 Control voltage [V] Fig. 11: Flow rate of pump NF 5 DCB-4, depending on control voltage KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
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Page 18: 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 19 Use a Phillips screwdriver to tighten the centre head screw. 8.3. Replacing parts Same procedure as in Chapter 8.2, "Cleaning", except that instead of cleaning the anchor valves (4) and seals (5), these components must be replaced. KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions...
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Page 20: Troubleshooting
The pump parts are not media- Replace the pump head with a compatible version resistant Incorrect interchange of outlet Remove outlet and inlet lines and re-connect correctly and inlet line connections Tab. 15 KNF Flodos BA_NF5_EN_01_152858.docx Translated from the Original Operating and Installation Instructions... - Page 21 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 Chapter 8.2.1).
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Page 22: 10. Decontamination Declaration
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 your local KNF sales partner (see address on last page) Customer decontamination declaration for... - Page 24 KNF worldwide Benelux Great Britain Sweden, Denmark, KNF Neuberger U.K. Ltd. Netherlands Finland, Norway KNF Verder B.V. Avenue 2 KNF Neuberger AB Utrechtseweg 4a Station Lane Mejerivägen 4, NL-3451 GG Vleuten Industrial Estate P.O. Box 44060 Tel. 0031 (0)30 677 92 40...
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