KNF NF 2.35 Скачать руководство пользователя страница 13

Diaphragm liquid pump NF 2.35 

Operation 

KNF Flodos AG BA_NF2-35_EN_02_164912 
Translation of original Operating and Installation Instructions

 

13 

7.  Operation 

  Only operate the pumps under the operating parameters and 

conditions permitted in these instructions (see especially Chap-
ter 4, Technical data). 

  Make sure that the pumps are being used properly (see Chap-

ter 2.1). 

  Avoid improper use of the pumps (see Chapter 2.2). 

  Observe the safety precautions (see Chapter 3). 

  The pumps are components that are intended to be incorpo-

rated into another machine. Before putting them into service it 
must be established that the machinery or systems in which 
they are installed meet the relevant regulations. 

 

CAUTION 

 Risk of burning 

The motor heats up. 

 

  Avoid contact with the pump motor. 

  Avoid contact with flammable materials. 

 

 

 

One means of preventing excessive pressure and the 
inherent dangers thereof is to place a bypass line with a 
pressure relief valve between the pressure and suction 
sides of the pump. For further information, contact your 
KNF technical adviser (for contact details, see last page). 

 

  If the pump stops running, restore the system to normal at-

mospheric pressure. 

For pumps with thermal switch or electronic overload protection: 

 

WARNING 

 

Personal injury or damage to pumps or the con-
nected system as a result of automatic start-up 

 

If the pump overheats and pump operation is 
stopped by the thermal switch / electronics, the pump 
will restart automatically as soon as it has had time to 
cool down. 

 

  Take steps to ensure that this cannot produce a 

hazardous situation. 

 
Replace filter (accessory) if dirty. 

Check the pump regularly for external damage or leaks. 

Switching the pumps on and off 

The motor speed of the pump, and thus the flow rate, is adjustable 
and can also be regulated to some extent 

 

Pump standstill 

Filter 

Check the pump 

Setting and regulating motor 

speed 

Содержание NF 2.35

Страница 1: ...de is a coun try specific designation with no technical relevance Contents Page 1 About this document 2 2 Use 3 3 Safety 4 4 Technical data 6 5 Assembly and function 8 6 Installation and connection 9...

Страница 2: ...markings Warning WARNING This symbol indicates a potential danger It also indicates the possible consequences of failure to observe the warning The signal word e g Warn ing indicates the level of dang...

Страница 3: ...n the permissible temperature range see Chapter 4 The transferred medium should not contain particles as these can prevent the pump from working correctly If this cannot be guaran teed a filter 50 m w...

Страница 4: ...and Installation Instructions and in particular the Safety chapter Always ensure adherence to all pertinent accident prevention and safety regulations when working on and operating the pump When trans...

Страница 5: ...ed as not ready for use Partly completed machinery may not be commissioned until such time as it has been determined that the machine in which the partly completed machinery is to be assem bled confor...

Страница 6: ...PTFE Resonating diaphragm PTFE Tab 3 1 according to DIN ISO 1629 and 1043 1 2 The pump head comprises an intermediate plate and a connecting plate Hydraulic ratings Parameter Value PN nominal pressure...

Страница 7: ...0 46 1 1 0 44 Protection class IP50 Weight g 1 260 Tab 6 1 The weight may differ slightly from the stated value depending on the version Electrostatic sensitive components ESD Other parameters Paramet...

Страница 8: ...alve 3 Working chamber 4 Diaphragm 5 Eccentric 6 Connecting rod 7 Pump drive Fig 2 Pump assembly The diaphragm liquid pumps are based on reciprocating displace ment pump technology The elastic diaphra...

Страница 9: ...instructions Before installation store the pump at the installation location to bring it up to ambient temperature Mounting dimensions see Fig 3 and 4 Fig 3 Mounting dimensions NF 2 35 DCB B Fig 4 Mou...

Страница 10: ...connect the pump when the power supply is disconnected When connecting the device to a power source the applicable norms directives regulations and technical standards must be observed Connecting the...

Страница 11: ...ilitate the priming process Check that the hoses and transition joints are fitted correctly and securely Check that the system is leak tight WARNING The bursting of unprotected parts of the system may...

Страница 12: ...rvicing it is recommended to use a new head plate with new rubber part to ensure continued maximum leak tightness Service Kit Pump Head NF 2 35 XP item no 165 704 NF 2 35 XT item no 165 705 Plug in co...

Страница 13: ...g excessive pressure and the inherent dangers thereof is to place a bypass line with a pressure relief valve between the pressure and suction sides of the pump For further information contact your KNF...

Страница 14: ...lev el If you experience a brief power interruption check for the presence of pressure or vacuum before restarting For more specific information contact your KNF technical adviser Switching off the pu...

Страница 15: ...erably sooner Filter accessory Change if it is dirty Tab 8 8 2 Disassemble pump head WARNING Health hazard due to dangerous substances in the pump Depending on the medium transferred caustic burns or...

Страница 16: ...in pump housing Screw diaphragm 11 with washer 12 into connecting rod Make sure that no washers 12 fall into the pump housing Fully tighten the diaphragm by hand Place O rings 8 and anchor valves 9 i...

Страница 17: ...alve plates or seals are worn Replace diaphragm valve plates and seals see Chapter 8 2 Replace pump Tab 10 Pump is not priming Possible cause Fault remedy Suction side of pump not con nected Connect t...

Страница 18: ...the pump head install suction side filter if required see Chapter 8 2 Viscosity of the transferred medium is too high Contact KNF Incorrect interchange of pres sure and suction line connec tions Remo...

Страница 19: ...n that the customer provides certification of the transferred media and the cleaning of the pump decontamination declaration In order to send a product back use the decontamination declaration which e...

Страница 20: ...KNF worldwide Please find your local KNF partners at www knf com...

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