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Swing Piston Compressor NPK03   

Operation 

KNF Micro BA314221-314224 NPK03-EN-1217 

Translation of original Operating and Installation Instructions, English 

11 

 

Switching the pumps on 

  In order to guarantee that the pump can start every time it is 

advisable to reduce the back pressure to an acceptable level. 
This is also the case if there is a short power cut. 

  For more specific information contact the KNF specialist 

Switching the pumps off 

  Ensure that the system is subject to normal atmospheric pres-

sure (release the hydraulic pressure. 

 

  The motor speed of the pump, and thus the flow rate, is adjust-

able and can also be regulated to some extent. 

  For more details, see Chapter 4, Technical data 

 

Duty cycle / impulse operation 

For pressures above 2bar g the switch-on duration has to be lim-
ited. 

Above 2bar g, we recommend a max. switch-on duration of 5 min. 
The switch-on/off time depends on the heat in the pump head and 
its heat dissipation / cooling down while switched off. 

During operation, a maximum temperature of 105°C should not be 
exceeded in the pump head. The temperature has to be measured 
on the pressure side of the pump head. 

 

For more specific information contact the KNF specialist 

Contact information: www.knf.com 

 

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: www.knf.com)  

Setting and regulating motor 

speed

 

Duty cycle 

Impulse operation 

Summary of Contents for NPK 03 KV DC-M

Page 1: ...nstructions to avoid dangerous situations The manual was produced for the serial pumps stated above With customer specified projects pump types starting with PJM or PMM there could be differences in d...

Page 2: ...ol indicates a potential danger It also indicates the possible consequences of fail ure to observe the warning The signal word e g Warning indicates the level of danger Here you will see actions for a...

Page 3: ...als of the pump head pump housing piston seal piston screw and valves with the medium The temperature of the medium must lie within the permissible temperature range see Chapter 4 The transferred gas...

Page 4: ...g such media Always ensure adherence to all information stickers on the pumps such as flow direction arrows and type plates and keep stickers in legible condition All replacement parts should be prope...

Page 5: ...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 hot parts...

Page 6: ...12 24 Max power consumption W 18 18 Connection Wires AWG20 Protection class IP 40 Weight 1 g 480 Delivery rate l min 2 3 3 Max operating pressure bar g 2 3 5 5 Max vacuum mbar abs 2 3 250 Tab 5 DCB st...

Page 7: ...ply voltage Red Vs AWG 24 Supply voltage Blue Vs GND AWG 24 Speed control input signal White Vctrl AWG 24 Frequency output output signal Green FG AWG 24 DC control input Vctrl Control voltage range DC...

Page 8: ...the pump overheats and the thermal switch electronics stops pump operation the pumps will restart automatically as soon as the motor has had time to cool down Take steps to ensure that this cannot pro...

Page 9: ...ump see Chapter 4 Only use hoses that are chemically resistant to the media be ing pumped 5 3 1 Connecting the pump Arrows on the pump head indicate the flow direction 1 Remove the protective caps fro...

Page 10: ...he drive heats up Avoid contact with the pump drive Avoid contact with flammable materials Excessive pressure and the inherent dangers thereof can be prevented by placing a bypass line with a pressure...

Page 11: ...ee Chapter 4 Technical data Duty cycle impulse operation For pressures above 2bar g the switch on duration has to be lim ited Above 2bar g we recommend a max switch on duration of 5 min The switch on...

Page 12: ...p from the power supply Pump must be free of any hazardous substances Hoses must be disconnected from the pump 7 3 Service Intervall 7 3 1 Version with DC Motor For DC motors no Service Interval is ne...

Page 13: ...em connected to the suction and pressure sides such as hoses valves or filters are causing too much resistance Modify installation check the cross sections of components Hose connections are not leak...

Page 14: ...on pumps or systems without a signed Health and safety clearance and decontamination form The template for the Health and safety clearance and decontami nation form is included with these operating in...

Page 15: ...03 Health and safety clearance and decontamination form KNF Micro BA314221 314224 NPK03 EN 1217 Translation of original Operating and Installation Instructions English 15 10 Health and safety clearanc...

Page 16: ...Swing Piston Compressor NPK03 KNF Micro BA314221 314224 NPK03 EN 1217 Translation of original Operating and Installation Instructions English 16 KNF worldwide Find our local KNF partner on www knf com...

Page 17: ...Swing Piston Compressor NPK03 KNF Micro BA314221 314224 NPK03 EN 1217 Translation of original Operating and Installation Instructions English 17...

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