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DIAPHRAGM LIQUID PUMP
NF 1.25
NF 1.25 RP DC 12V
DC / DCB-B / DCB-4B
RP / RT [Ch. 4]
1.25
NF / UNF
- / 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 coun-
try-specific designation, with 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 AG BA_NF1.25_EN_03_163242
Translation of Original Operating and Installation Instructions, English
Supply voltage [Ch. 4]
Contents
1. About this document ................................................................. 2
2. Use ........................................................................................... 3
3. Safety ....................................................................................... 4
4. Technical data .......................................................................... 6
5. Assembly and function ............................................................. 9
6. Installation and connection ..................................................... 10
7. Operation ................................................................................ 13
8. Servicing ................................................................................. 16
9. Troubleshooting ...................................................................... 18
10. Decontamination declaration .................................................. 20
Page
Keep for future reference!
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Summary of Contents for KNF NF 1.25 Series
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Page 1: Table Of Contents
Fax +41 (0)41 925 00 35 7. Operation ................13 www.knf-flodos.ch 8. Servicing ................. 16 info@knf-flodos.ch 9. Troubleshooting ..............18 10. Decontamination declaration ..........20 KNF Flodos AG BA_NF1.25_EN_03_163242 Keep for future reference! Translation of Original Operating and Installation Instructions, English... -
Page 2: About This Document
➔ This indicates an activity (step) that must be carried out. This indicates the first step of an activity to be carried out. Any additional steps required are numbered consecutively. This symbol indicates important information. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... -
Page 3: Use
2.2. Improper use The pumps must not be operated in an explosive atmosphere. For special modifications outside the standard technical specifica- tions, please contact your KNF technical adviser. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... -
Page 4: Safety
Ensure that the old appliance is disposed of in an envi- ronmentally-appropriate manner. Use appropriate waste collection systems for the disposal of end-of-life equip- ment. Used pumps contain valuable recyclable materials. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... - Page 5 ▪ IEC/EN 61000-6-2 ▪ IEC/EN 61000-6-3 Customer services and All repairs to the pump(s) must be carried out by the relevant KNF repairs Customer Service team. Only use genuine parts from KNF for servicing work. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
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Page 6: Technical Data
/ hose connectors used. Hydraulic connections Parameter Value Hose connection NF1.25 ID / OD [mm] 4 / 6 Hose connection UNF1.25 ID / OD [Inch] 1/8" / 1/4" Tab. 5 KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... - Page 7 Control voltage range DC [VDC] 0..10 Speed range [rpm] 250..4500 Resistant to surge voltages [VDC] ± 30 Input resistance (Vctrl ≤ 11.1VDC) [k] Threshold voltage [VDC] 0.19 Control voltage characteristic KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
- Page 8 + 5 to + 40 ambient temperature range [°C] Permissible media temperature range [°C] + 5 to + 80 ≤ 150 Permissible kinematic viscosity of medium [cSt] Tab. 9 KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
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Page 9: Assembly And Function
(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). KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... -
Page 10: Installation And Connection
➔ Mounting dimensions (see Fig. 3 to 5) Mounting dimensions Fig. 3: Mounting dimensions NF 1.25 DC Fig. 4: Mounting dimensions NF 1.25 DCB-B KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... - Page 11 Make sure that the power supply data match the data on the motor's type plate. The current consumption can be found on the type plate. Connect the motor cables. For electrical data see Chapter 4. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
- Page 12 Check that the hoses and transition joints are fitted correctly and securely. Check that the system is leak-tight. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
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Page 13: 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 KNF technical adviser for further infor- mation (Telephone number: see first page). KNF Flodos AG BA_NF1.25_EN_03_163242... - Page 14 For more specific information contact your KNF technical adviser. Switching off the pump ➔ KNF recommends: If transferring aggressive liquids, the pump should be flushed thoroughly prior to switch off (see Chapter 8.2.1), as this will help to lengthen the service life of the dia- phragm.
- Page 15 Diaphragm liquid pump NF 1.25 Operation Fig. 9: Flow rate of pump NF 1.25 DCB-4B, depending on control voltage KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
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Page 16: Servicing
➔ 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. - Page 17 8.3. Replacing diaphragms, valves and seals Same procedure as in Chapter 8.2, "Cleaning", except that instead of cleaning the diaphragm (10), anchor valves (7) and seals (6), these components must be replaced. KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
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Page 18: Troubleshooting
➔ Remove pressure and suction lines and re-connect correctly Incorrect interchange of pres- sure and suction line connec- tions Tab. 13 KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English... - Page 19 Tab. 14 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 20: 10. Decontamination Declaration
Diaphragm liquid pump NF 1.25 Decontamination declaration 10. Decontamination declaration KNF shall only undertake to repair the pump on condition that the customer provides certification of the transferred media and the cleaning of the pump (decontamination declaration). ➔ In order to send a product back use the decontamination declaration, which either was delivered with the product or is available on www.knf.com (Downloads). - Page 21 Diaphragm liquid pump NF 1.25 For your notes KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
- Page 22 Diaphragm liquid pump NF 1.25 For your notes KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
- Page 23 Diaphragm liquid pump NF 1.25 For your notes KNF Flodos AG BA_NF1.25_EN_03_163242 Translation of Original Operating and Installation Instructions, English...
- Page 24 KNF worldwide Please find your local KNF partners at: www.knf.com...
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