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KNF N 922 Ex, Operation And Installation Instructions Manual

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KNF N 922 Ex Operation And Installation Instructions Manual Download Page 36

Servicing

Diaphragm pump N922 EX

36

Translation of Original Operation and Installation Instruction, english, KNF 313600 11/19

1

Housing

2

Intermediate plate

3

Head plate

4

Pressure plate

5

Screws

6

Diaphragm

7

Screw

8

Washer

9

Valve plate/seal

10

O-ring (only .29 version)

11

Adjusting valve (only .29
version)

12

Locating pin

Fig. 10 Pump parts N922FT.29E EX

Summary of Contents for N 922 Ex

Page 1: ...RIGINAL OPERATION AND INSTALLATION INSTRUCTION ENGLISH KNF 313600 11 19 ATEX Notice Before operating the pump and the accessories read the operating and installation instructions and observe the safet...

Page 2: ...function 15 6 Transport 16 7 Installation and connection 17 8 Operation 27 9 Servicing 31 10 Troubleshooting 38 11 Spare parts and accessories 41 12 Returns 43 13 Appendix 44 KNF Neuberger GmbH Alter...

Page 3: ...ect pumps pump models that begin with PJ or PM there may be deviations from the operating and installation instruc tions For project pumps also observe the agreed specifications Motor The operating an...

Page 4: ...hand injuries through crushing Warning of hot surface Warning of electrical voltage Warning of explosive materials Observe the operating instructions Tab 3 Other notices and symbols An activity to be...

Page 5: ...Before transferring a medium check whether the medium can be trans ferred danger free in the specific application Before using a medium check the compatibility of the media contacting components see...

Page 6: ...types H Symbol for ignition protection type See Chapter 2 4 5 Ignition protection type II B H2 Explosion groups see Chapter 2 4 3 Explosion groups T3 Temperature class see Chapter 2 4 4 Tempera ture c...

Page 7: ...a dust air mix ture is present constantly or for long periods of time or often 2G Devices of this category are designed for use in areas in which it is to be expected that an explosive atmosphere con...

Page 8: ...fuel Jet fuel Heating oils n hexane Acetalde hyde IIB Town gas Ethylene Ethyl alcohol Hydrogen sulfide Ethyl ether IIC Hydrogen Acetylene Carbon disulfide Tab 9 The classification of gases and vapors...

Page 9: ...mixture in which it is used Temperature class The maximum surface temperature arises from the design the pump and is specified as temperature class Temperature class Max surface tempera ture C Igniti...

Page 10: ...th high protection level for use in potentially explosive areas in which there is no risk of ignition during normal operation or in the event of fore seeable or infrequent faults malfunc tions High Gc...

Page 11: ...is disconnected from mains and without power Make certain that no dangers arise from flow when gas connections are open from noises or from hot corrosive dangerous and environmentally hazardous gases...

Page 12: ...temperature 4 Technical data is not exceeded 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 C...

Page 13: ...state 1013 mbar Other parameters Parameter Value Permissible ambient temperature C 5 to 50 Permissible media temperature C 5 to 50 Dimensions N922 EX three phase motor N922 EX capacitor motor N922 29...

Page 14: ...Technical data Diaphragm pump N922 EX 14 Translation of Original Operation and Installation Instruction english KNF 313600 11 19 Weight Pump type Value kg N922 EX 7 2 Tab 23...

Page 15: ...e 2 Inlet valve 3 Transfer chamber 4 Diaphragm 5 Eccentric 6 Connecting rod 7 Pump drive Fig 2 Function of a diaphragm pump Diaphragm pumps transfer compress depending on the version and evacu ate gas...

Page 16: ...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 glov...

Page 17: ...dangerous gas mixtures during pump op eration Depending on the medium being transferred breakage of the media contacting components can result in a dangerous mixture if the medium mixes with the air...

Page 18: ...Installation and connection Diaphragm pump N922 EX 18 Translation of Original Operation and Installation Instruction english KNF 313600 11 19 Fig 3 Mounting dimensions N922 EX capacitor motor...

Page 19: ...Diaphragm pump N922 EX Installation and connection Translation of Original Operation and Installation Instruction english KNF 313600 11 19 19 Fig 4 Mounting dimensions N922 EX three phase motor...

Page 20: ...Installation and connection Diaphragm pump N922 EX 20 Translation of Original Operation and Installation Instruction english KNF 313600 11 19 Fig 5 Mounting dimensions N922 29 EX capacitor motor...

Page 21: ...of the pump can draw in sufficient cooling air Ensure sufficient ventilation or heat dissipation in the vicinity of the pump WARNING Danger of burning on hot surfaces Hot surfaces could occur if the p...

Page 22: ...r is specified on the type plate Mount the pump at the highest point in the system to prevent conden sate from collecting in the pump head Protect the pump from dust Protect the pump from vibration an...

Page 23: ...the condensate that forms can sim ply drain out of the pump head For this purpose the compressor housing including pump head depending on installation position can be rotated in increments of 90 and...

Page 24: ...e desired position The compressor housing can be rotated completely around its own axis relative to the motor in 90 increments Fig 8 Installation positions of the compressor housing 5 Screw in the fou...

Page 25: ...s and technical standards When connecting to a power source carefully read and observe the operating instructions for the motor Install a device for separating the pump motor from the electrical mains...

Page 26: ...e certain that there is no risk of explosion posed by the medium mixing with the envi ronment Pump discharge If the pump is used as a vacuum pump safely with respect to medium and noise drain the hot...

Page 27: ...njury 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 operating parameters and operating...

Page 28: ...s not exceeded Ensure that the pump outlet is not closed or restricted WARNING Risk of explosion from elevated ambient tempera ture Monitor the ambient temperature compres sion heat motor heat Ensure...

Page 29: ...start up against pressure and or vacuum during switch on see 4 Technical data This also applies during operation after a brief power failure Ensure that normal atmospheric pressure is present in the l...

Page 30: ...ble to precisely determine suction losses and the resistance of measuring devices set the desired flow rate as follows Reducing the flow rate Turn adjustment screw X counterclockwise Increasing the fl...

Page 31: ...n properties Furthermore the function of the pump and it safety are lost The validity of the CE conformity is rendered void if original parts are not used Use only original parts from KNF during ser v...

Page 32: ...omponents Only clean the pump with a damp cloth Only clean the pump with a damp cloth and non flammable cleaning agents If compressed air is present blow out the components 9 3 Replacing diaphragm and...

Page 33: ...lowing work instruction refer to Fig 10 Removing the pump head 1 Mark the position between housing 1 intermediate plate 2 head plate 3 and pressure plate 4 by means of a continuous line made with a fe...

Page 34: ...he new valve plates seals 9 in the valve seats of the inter mediate plate 2 8 By moving the valve plates seals 9 sideways slightly make sure that the valve plates seals 9 are centered in the valve sea...

Page 35: ...fore recommissioning the pump check the pump heads and pneumatic connections for leaks Leaks may lead to a risk of explosion WARNING Risk of injury and poisoning from leaks Before recommissioning the...

Page 36: ...nstallation Instruction english KNF 313600 11 19 1 Housing 2 Intermediate plate 3 Head plate 4 Pressure plate 5 Screws 6 Diaphragm 7 Screw 8 Washer 9 Valve plate seal 10 O ring only 29 version 11 Adju...

Page 37: ...w the new adjusting valve 11 into the head and tighten tighten ing torque 450 Ncm Fig 11 Adjusting valve The adjusting valve 11 is preset ex works to a defined value No changes may therefore be made t...

Page 38: ...ause Fault remedy Pump is not connected to the elec trical mains Connect the pump to the electrical mains No voltage in the electrical mains Check the room fuse and switch on if necessary Connections...

Page 39: ...connect the pump from the system to deter mine the output values Eliminate throttling e g valve if necessary Use lines or connection parts with larger cross section if necessary Leaks occur at connect...

Page 40: ...Service contact data see www knf com 1 Flush the pump with air at atmospheric pressure for a few minutes if necessary for safety reasons with inert gas to free the pump head of dangerous or aggressiv...

Page 41: ...ts Quantity Diaphragm 1 Valve plates seals 2 O ring 5 5 x 2 only 29 version 1 Tab 45 Spare part set Order number N922FTE EX 313515 N922FT 29E EX 313516 Tab 47 Spare part Order number Adjusting valve o...

Page 42: ...phragm pump N922 EX 42 Translation of Original Operation and Installation Instruction english KNF 313600 11 19 Fig 12 Pump with accessories depicted with hose screw connection mounting kit rubber bond...

Page 43: ...isite for repairing a pump by KNF is a completed Decontamination 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...

Page 44: ...ragm pump N922 EX 44 Translation of Original Operation and Installation Instruction english KNF 313600 11 19 13 Appendix 13 1 Declaration of Conformity For further information see also Konformit tserk...

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Page 49: ...X Appendix Translation of Original Operation and Installation Instruction english KNF 313600 11 19 49 13 2 Motor For further information see also Betriebsanleitung Motor pdf Anschlussplan Motor pdf CE...

Page 50: ...cable entry supplied with the motor or through another type of cable entry certified in accordance with the European Standards showed above in compliance with Directive 2014 34 EU and IECEx approved...

Page 51: ...EN 60079 0 2012 A11 2013 EN 60079 1 2014 EN 60079 31 2014 EN 60079 7 2015 EN 60034 1 2 5 6 7 9 12 14 IEC60072 1 EN 60259 NOTA NOTE BEMERKUNG NOTAS Directive 2006 42 EC Direttiva Macchine Machinery Dir...

Page 52: ...ti separati Three phase double speed 2 separate windings U1 V1 W1 W2 U2 V2 L3 L1 L2 L1 L2 L3 U1 W2 U2 V2 W1 V1 U1 V1 W1 W2 U2 V2 L3 L1 L2 L1 L2 L3 U1 W2 U2 V2 W1 V1 1 T1 2 T2 1 T1 2 T2 Bassa velocit L...

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Page 54: ...accessory Terminal box and Capacitor box Type of Protection Flameproof enclosures d Equipment dust ignition protection by enclosure t Increased safety e Marking Ex db IIC T3 T4 or T5 Gb Ex tb IIIC T1...

Page 55: ...variations to it specified in the schedule of this certificate and the identified documents was found to comply with the following standards IEC 60079 0 2011 Edition 6 0 Explosive atmospheres Part 0...

Page 56: ...IIC and IIIC All the parts of the flameproof enclosures have flameproof joints independent from each other The motors can be equipped with auxiliary devices heaters thermal protectors Possibility of s...

Page 57: ...08 DETAILS OF CERTIFICATE CHANGES for issues 1 and above Changing of manufacturer s references Use of metric threaded plugs in holes of flameproof terminal enclosure with a free internal volume up to...

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Page 60: ...KNF worldwide You can find our local KNF partners at www knf com...

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