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Swing Piston Pumps NPK 09 

 

Use 

Translation of original Operating Instructions, English, KNF 121576-121579 11/20 

2.  Use 

2.1.  Proper use 

The pumps are exclusively intended for transferring gases. 

 

Owner's responsibility 

Only install and operate the pumps under the operating parameters 
and conditions described in Chapter 4, Technical data. 

Only complete pumps may be taken into service. 

Make sure that the installation location is dry and the pump is 
protected against rain, splash, hose and drip water. 

Before using a medium, check whether the medium can be trans-
ferred danger-free in the specific application case. 

Before using a medium, check the compatibility of the materials of 
the pump head, pump housing, diaphragms, and valves with the 
medium. 

Only transfer gases which remain stable under the pressures and 
temperatures occurring in the pump. 

 

2.2.  Improper use 

The pumps may not be operated in an explosive atmosphere. 

The pumps are not suitable for transferring dusts. 

The pumps are not suitable for transferring vapors and liquids. 

The pumps must not be used to create vacuum and overpressure 
simultaneously.

 

An overpressure must not be applied to the suction side of the 
pump. 

 

Operating parameters and  

conditions 

Requirements for  

transferred medium 

Содержание NPK 09

Страница 1: ...g and Installation Instruc tions NPK 09 1 NPK 09 2 NPK 09 1 2 List of Contents Page 1 About this document 2 2 Use 3 3 Safety 4 4 Technical Data 6 5 Design and function 8 6 Installation and connection...

Страница 2: ...ible consequences of a failure to observe the warning are specified here The signal word e g Warning indicates the danger level Measures for avoiding the danger and its conse quences are specified her...

Страница 3: ...k whether the medium can be trans ferred danger free in the specific application case Before using a medium check the compatibility of the materials of the pump head pump housing diaphragms and valves...

Страница 4: ...f Make sure the temperature of the medium is always sufficiently below the ignition temperature of the medium to avoid ignition or explosion This also applies for unusual operational situations Note t...

Страница 5: ...g off the 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 a...

Страница 6: ...operating pressure bar g Ultimate vacuum mbar abs NPK 09 12 7 100 NPK 09 DC 15 NPK 09 1 24 NPK 09 2 7 NPK 09 1 2 100 Tab 4 Liters in standard state 1 013 mbar Pneumatic connections Pump type Suction s...

Страница 7: ...91 x 115 x130 NPK 09 2 NPK 09 1 2 Tab 7 Weight Pump type Weight kg NPK 09 approx 1 8 NPK 09 DC approx 1 6 NPK 09 1 approx 2 2 NPK 09 2 NPK 09 1 2 approx 2 4 Tab 8 Other parameters Parameter Values Per...

Страница 8: ...nglish KNF 121576 121579 11 20 5 Design and function Design NPK 09 DC 1 Outlet 2 Pump head 3 Inlet 4 Motor Fig 1 Swing Piston Pump NPK 09 DC Design NPK 09 AC 1 Outlet 2 Pump head 3 Inlet 4 Pneumatic h...

Страница 9: ...sing Fig 4 How Swing Piston Pumps work Swing Piston Pumps transfer compress and evacuate air The swing piston consisting of retainer plate 4 and piston seal 5 is moved up and down by the eccentric 6 a...

Страница 10: ...ghest point in the system to prevent condensate from collecting in the pump head Choose a safe location flat surface for the pump Protect the pump from dust Protect the pump from vibrations and jolts...

Страница 11: ...tor Correct connection red cable black cable EMC compatible Installation for NPK 09 DC The Tests Magnetic field with energy technical frequency Electromagnetic HF field amplitude modulated Electromagn...

Страница 12: ...ta If the pump is used as a vacuum pump safely discharge the pump exhaust at the pump s pneumatic outlet Connecting pump A marking on the pump head shows the direction of flow 1 Remove the protective...

Страница 13: ...If the air or gas quantity in the pressure line is throttled or regulated make sure that the maxi mum permissible operating pressure is not ex ceeded Excessive pressure with all of the related hazard...

Страница 14: ...imple to change When changing the piston seal check the valve plates for damage tongues bent corrosion Fig 5 Pump element single head types Fig 6 Pump element twin head types Fig 7 Pump element all ty...

Страница 15: ...figures 5 and 6 This helps avoid incorrect assembly later 3 Unscrew the 4 screws 4 and take off the ribbed head 3 4 Remove gasket 6 valve plate 7 intermediate plate 2 and valve plate 8 from housing 1...

Страница 16: ...8 shows the correct orientation of the parts particularly the valve plates in relation to the compression symbol on the head plate Both valve plates are identical and they can be fitted ei ther way up...

Страница 17: ...seal must be carried out Disassembly 1 to 4 10 and 11 Assembly 5 to 8 using new valve plates 2 for each head For twin head pumps repeat the operations described for the second head and replace the con...

Страница 18: ...en changing valve plates and diaphragm inspect all parts for dirt before assembling the pump head and clean them if neces sary As far as possible clean the parts with a dry cloth Solvents should not b...

Страница 19: ...pump Make sure the pump is de energized and secure Check the pump see Tab 14 and 15 Pump does not transfer Cause Fault remedy Thermal switch has operated following to over heating Disconnect pump from...

Страница 20: ...ate throttling e g valve if necessary Use lines or connection parts with larger cross section if necessary Leaks occur on connections lines or pump head Eliminate leaks Connections or lines completely...

Страница 21: ...ew 318015 5 Connection for NPK 09 1 NPK 09 1 2 suction side Connection for NPK 09 2 NPK 09 1 2 pressure side 026178 026179 6 Gasket 052650 7 8 Valve plate 052649 9 O Ring 317559 10 Cylinder 318168 11...

Страница 22: ...te for repairing a pump by KNF is a completed Decon tamination 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 You ca...

Страница 23: ......

Страница 24: ...KNF worldwide Find your local KNF partner on www knf com...

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