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Summary of Contents for KNF N963
- Page 1 KNF 320276-320275 09/19 N936 TRANSLATION OF ORIGINAL OPERATING AND INSTALLATION INSTRUCTION ENGLISH DIAPHRAGM PUMP Note! Before operating the pump and the accessories, please read the operating and installation instructions and pay attention to the safety precautions!
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Page 2: Table Of Contents
Index KNF Neuberger GmbH Alter Weg 3 1 About this document ............ 3 79112 Freiburg 2 Use ................... 4 Germany 3 Safety................ 5 Phone +49-(0)7664/5909-0 4 Technical data .............. 8 Fax. 07664/5909-99 5 Design and function ............ 10 6 Transport ................ 12 www.knf.com... -
Page 3: About This Document
An activity to be carried out is specified here (a step). 1. The first step of an activity to be carried out is specified here. Follow other sequentially numbered steps. This symbol indicates important information. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... -
Page 4: Use
Food The pumps are not suitable for aggressive media. For aggressive media, pumps from the KNF product line are available – please contact us. Pumps that can produce both vacuum as well as overpressure may not be used to simultaneously produce vacuum and overpressure. -
Page 5: Safety
If applicable, also take into consideration external energy sources (e.g., ra- diation sources) that could add heat to the medium. In case of doubt, contact KNF Customer Service. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 6 The terminal strip is suitable exclusively for wiring at the factory. § The pumps must be connected to protective earth. § The motor has insulation class F (+155°C) and is equipped with a self- resetting overtemperature switch. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 7 Diaphragm Pump N936 Safety Customer service and repairs The pumps are maintenance-free. KNF does, however, recommend peri- odically inspecting the pumps for noticeable changes to noises and vibra- tions. Only have repairs to the pumps performed by the responsible KNF Cus- tomer Service.
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Page 8: Technical Data
*Bar rel related to 1013 hPa **Liters in standard state (1013 hPa, 20°C) Pneumatic connections Pump type Value N936 EU Thread size G 1/4 N936 US Thread size NPT 1/4 Tab. 4 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 9 *for ambient temperature >+50°C in intermittent or short-period operation, the max. surface temperature on the capacitor is to be checked in the final device. This must not exceed +85°C. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
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Page 10: Design And Function
Design and function Diaphragm Pump N936 5 Design and function Design 1 Fan 2 Pneumatic pump inlet 3 Pneumatic pump outlet 4 Electrical connection Fig. 1 Diaphragm pump N936 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 11 (2). In the upwards 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 instruction, English, KNF 320276-320275 09/19...
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Page 12: Transport
- 10 to + 60 Permissible humidity (non-condens- 30 to 85 ing) [%] Tab. 8 Transport parameters Prior to commissioning, make sure that the pump has reached the ambient temperature (4 Technical data). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... -
Page 13: Installation And Connection
Immediate environment of the During installation, make sure that no combustible or thermally de- hot pump parts formable objects are positioned in the immediate environment of the hot pump parts (head, motor). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 14 Automatic restart after tripping of the self-re- setting protection temperature limiter. Risk of pump damage during operation à Take protective measures against the pene- tration of foreign bodies into the pump. CAUTION Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 15 It is recommended that an additional emergency-off system be in- stalled. à Mount the pumps in such a way that it is not possible to touch the elec- trically live parts (electrical connection). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 16 If the pump is used as a vacuum pump, safely (with respect to medium and noise) drain the hot pump discharge that may, under certain cir- cumstances, occur at the pneumatic outlet of the pump. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 17 A container that collects the condensate must therefore be in- stalled in the pressure line. 3. Lay the suction and pressure line at a downward angle to prevent con- densate from running into the pump. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
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Page 18: Operation
The pumps are built-in devices. Before they are commissioned, it must be ensured that the machines or systems into which the pumps are in- stalled comply with the relevant provisions. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 19 Further informa- tion is available from the KNF technical adviser (contact data: see www.knf.com). Risk of dangerous gas mixtures during pump op-...
- Page 20 à Switching off/decommissioning At the end of an evacuation or a process, KNF recommends letting the pump pump run for several minutes with air as the medium to remove con- densate from the pump head (drying of the pump).
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Page 21: Servicing
During cleaning work, ensure that no fluids enter the interior of the housing. à Solvents should only be used during cleaning if head materials are not affected (ensure resistance of the material). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 22 Tab. 11 *According to spare parts list, Chapter 11.1 Spare parts Fig. 6 ** According to Tool and material Quantity Tool/material Torx TX30 screwdriver Torx TX25 screwdriver Felt-tip pen Tab. 12 *According to accessories list, Chapter 11.2 Accessories Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 23 7. Properly dispose of replaced diaphragm, valves and O-rings. Mounting pump heads 1. Place the pump head on the housing according to the marking (M). 2. Only slightly tighten the screws (7) crosswise. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
- Page 24 1. Reconnect suction and pressure side to the pump. 2. Connect pump to the electrical mains. If you have questions with regard to maintenance, please contact your KNF Customer Service representative (contact data: see www.knf.com). Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
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Page 25: Troubleshooting
Determine cause of the overheating and rectify. à Diaphragm, valves or O-rings are Changing diaphragm, valves or O-ring (see worn or defective. Chapter 9.3 Replacing diaphragm, valves and O- rings). Tab. 13 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... - Page 26 3. Clean the pump (see Chapter 9.2.2 Cleaning the pump). 4. Send the pump together with completed Health and Safety Clearance and Decontamination Form to KNF, stating the nature of the trans- ferred medium. Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19...
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Page 27: Spare Parts And Accessories
Tab. 16 Fig. 7 Pump head (exploded view, symbolic) 11.2 Accessories Accessories Order number Rubber-bonded metal; M4 IG (4 124782 pieces/pump) Hose connectors Ms G1/4" for 004950 ID-9mm Cu-seal 005150 Tab. 17 Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19... -
Page 28: Returns
Returns Diaphragm Pump N936 12 Returns A prerequisite for repairing a pump by KNF is a completed Decontamina- tion Form. This is made available on the KNF website as a download. § To find the form, select your country on the overview page (www.knf.com). - Page 32 KNF worldwide Find your local KNF partner on: www.knf.com...
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