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Returns

Diaphragm Pump N936

28

Translation of Original operating and installation instruction, English, KNF 320276-320275 09/19

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).

You can find the Decontamination Form in the download area.

If you have questions, please contact your sales partner (contact data: see
www.knf.com).

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Содержание N963

Страница 1: ...ING AND INSTALLATION INSTRUCTION ENGLISH KNF 320276 320275 09 19 OEM Note Before operating the pump and the accessories please read the operating and installation instructions and pay attention to the...

Страница 2: ...gn and function 10 6 Transport 12 7 Installation and connection 13 8 Operation 18 9 Servicing 21 10 Troubleshooting 25 11 Spare parts and accessories 27 12 Returns 28 KNF Neuberger GmbH Alter Weg 3 79...

Страница 3: ...or PM there may be deviations from the operating and installation instruc tions For project pumps also observe the agreed specifications 1 2 Symbols and markings Warning notice WARNING A notice that...

Страница 4: ...trans ferred danger free in the specific application Before using a medium check the compatibility of the media contacting components see 4 Technical data with the medium Risk of dangerous gas mixtur...

Страница 5: ...on the pump make certain that the pump is disconnected from mains and without power Make sure that no dangers arise from flow when gas connections are open from noises or from hot corrosive dangerous...

Страница 6: ...the mains con nections and equipment for disconnecting and switching off the partly com pleted machinery as well as overcurrent and overload protection gear must be considered when mounting Furthermor...

Страница 7: ...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 responsibl...

Страница 8: ...Al Diaphragm HNBR Valves HNBR O rings FPM Tab 2 Pneumatic values Parameter Value Max permissible operating pressure bar rel 0 5 Ultimate vacuum mbar abs 200 Flow rate at atm pressure l min 50 Hz 34 10...

Страница 9: ...with a thermal switch for moni toring against overheating Weight Pump type Value kg N936 Approx 4 Tab 6 Other parameters Parameter Value Permissible ambient temperature long term C 15 to 50 Permissib...

Страница 10: ...10 Translation of Original operating and installation instruction English KNF 320276 320275 09 19 5 Design and function Design 1 Fan 2 Pneumatic pump inlet 3 Pneumatic pump outlet 4 Electrical connec...

Страница 11: ...ction of a diaphragm pump Diaphragm pumps transfer compress depending on the version and evacu ate gases and vapors The elastic diaphragm 4 is moved up and down by the eccentric 5 and the connecting r...

Страница 12: ...g There is a risk of injury from cutting on the sharp edges when grabbing corners or when opening the packaging Where appropriate wear suitable personal protective equipment e g safety shoes safety gl...

Страница 13: ...7 1 Installing the pump Before installing store the pump at the installation location to allow it to reach the ambient temperature Mounting dimensions For mounting dimensions see the following figure...

Страница 14: ...s Protect pump from vibration and impact Installation position The pump can be mounted in any installation position Use metal screws to fasten the pump at the indicated attachment points Fig 4 Pump N9...

Страница 15: ...pump motor from the electrical mains in the electrical installation in accordance with EN 60335 1 Protect the pump motors in accordance with EN 60204 1 overcurrent protection overload protection To c...

Страница 16: ...ating instructions for motor Set the direction of rotation according to the arrow on the fan hood see 7 1 Installing the pump and operating instructions for the mo tor 2 Connecting the motor cable The...

Страница 17: ...onents on the suc tion and pressure side Observe the marking of inlet and outlet on the pump head 1 Remove protective plugs from the hose connection threads 2 Connect suction and pressure line for mou...

Страница 18: ...t of the pump may result in injury to the eyes due to the present vacuum operating pressure Do not look into the pump inlet outlet during operation Only operate the pumps in accordance with the operat...

Страница 19: ...ted Excessive pressure with all of the associated hazards can be pre vented by means of a bypass line with a pressure relief valve be tween the pressure and suction sides of the pump Further informa t...

Страница 20: ...f condensate in the pump Therefore Only perform work with saturated or nearly saturated vapors with a warm pump KNF recommends When transferring aggressive media flush the pump before switching off se...

Страница 21: ...entally hazardous media KNF recommends flushing the pump at atmospheric pressure for a few minutes prior to switch off if necessary for safety reasons with an inert gas to ex tend the service life of...

Страница 22: ...p head or motor may still be hot after op eration of the pump Allow pump to cool after operation Always replace diaphragm valves and O rings together to maintain the performance and safety of the pump...

Страница 23: ...int by turning the fan 10 6 Replace O ring 18 under the retainer plate with a new one 7 Insert the new diaphragm 17 position the retainer plate 16 and screw onto the connecting rod with the retainer p...

Страница 24: ...nt of the pump by turning on the fan 10 4 Now tighten the screws 7 on both pump heads crosswise tightening torque 6 Nm Final steps 1 Reconnect suction and pressure side to the pump 2 Connect pump to t...

Страница 25: ...lines are blocked Check connections and lines Remove blockage External valve is closed or filter is clogged Check external valves and filters Condensate has collected in the pump head Separate the sou...

Страница 26: ...tion if necessary Leaks occur at connections lines or pump head Eliminate leaks Connections or lines are com pletely or partially plugged Check connections and lines Remove the parts and particles tha...

Страница 27: ...3 14 8 15 16 17 18 Fig 7 Pump head exploded view symbolic Parts Item number Quantity Diaphragm 17 1 Valve 14 2 O ring valve 13 2 O ring under diaphragm 18 1 Retainer plate screw 15 1 Tab 15 see Chapte...

Страница 28: ...equisite 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...

Страница 29: ......

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Страница 32: ...KNF worldwide Find your local KNF partner on www knf com...

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