KNF NF 1.25 DC, Operating And Installation Instructions

Page 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 9 6 Installation and connection 10...

Page 2: ...ial danger It also indicates the possible consequences of failure to observe the warning The signal word e g Warn ing indicates the level of danger Here you will see actions for avoiding the danger an...

Page 3: ...pecific application case Before using a medium check the compatibility of the materials of the pump head pump housing diaphragm and valves with the medium The temperature of the medium must lie within...

Page 4: ...d understood the Oper ating and Installation Instructions and in particular the Safety chapter Always ensure adherence to all pertinent accident prevention and safety regulations when working on and o...

Page 5: ...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 conforms...

Page 6: ...M Diaphragm PTFE coated Resonating diaphragm FFKM Tab 3 1 according to DIN ISO 1629 and 1043 1 Pump head Fig 1 comprises an intermediate plate and a connecting plate Hydraulic ratings Parameter Value...

Page 7: ...wer consumption W 5 8 6 2 7 0 Max I load A 0 48 0 26 0 53 0 25 Protection class IP50 Weight g 185 Tab 7 Electrical specifications for motor DCB 4B Electrical connections Lead assignment Function Wire...

Page 8: ...high V 2 8 Output level low V 0 5 Tab 8 In the case of type NF 1 25 DCB 4B the supply voltage is not designed for operation with pulse width modulated voltages PWM It is permissible to actuate the co...

Page 9: ...alve 2 Inlet valve 3 Working chamber 4 Diaphragm 5 Eccentric 6 Connecting rod 7 Pump drive Fig 2 Pump assembly Diaphragm liquid pumps are based on reciprocating displacement pump technology The elasti...

Page 10: ...ly install the pumps under the operating parameters and condi tions described in Chapter 4 Technical data Observe the safety precautions see Chapter 3 6 1 Installation Before installation store the pu...

Page 11: ...lla tion position For maximum precision and rapid venting install pump as shown in the illustration Fig 5 6 2 Electrical connection Only have the pump connected by an authorized specialist Only have t...

Page 12: ...the maximum operating pressure of the pump see Chapter 4 Only use hoses that are sufficiently chemically resistant to the liquids being pumped 6 3 1 Connecting the pump Arrows on the pump head indicat...

Page 13: ...he pump For further information contact your KNF technical adviser tele phone number see first page If the pump stops running restore the system to normal at mospheric pressure For pumps with thermal...

Page 14: ...tion check for the pres ence of pressure or vacuum before restarting For more specific information contact your KNF technical adviser Switching off the pump KNF recommends If transferring aggressive l...

Page 15: ...liquid pump NF 1 25 Operation KNF Flodos AG BA_NF1 25_EN_03_163242 Translation of Original Operating and Installation Instructions English 15 Fig 9 Flow rate of pump NF 1 25 DCB 4B depending on contro...

Page 16: ...ctive clothing if necessary e g pro tective gloves Flush the pump with a neutral liquid and pump empty 8 2 1 Flushing the pump If transferring aggressive media KNF recommends flushing the pump with a...

Page 17: ...ew diaphragm 10 with washer 11 into connecting rod and tighten firmly Make sure that no washers 8 fall into the pump housing Use the head plate 2 to carefully tighten the diaphragm Mounting the valves...

Page 18: ...anchor valves and seals see Chapter 8 3 Tab 12 Pump is not priming Cause Fault remedy Suction side of pump not con nected Connect the suction side of the pump Liquid in the priming container is too l...

Page 19: ...n the pump Clean 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 c...

Page 20: ...ondition 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...

Page 21: ...Diaphragm liquid pump NF 1 25 For your notes KNF Flodos AG BA_NF1 25_EN_03_163242 Translation of Original Operating and Installation Instructions English 21...

Page 22: ...Diaphragm liquid pump NF 1 25 For your notes KNF Flodos AG BA_NF1 25_EN_03_163242 Translation of Original Operating and Installation Instructions English 22...

Page 23: ...Diaphragm liquid pump NF 1 25 For your notes KNF Flodos AG BA_NF1 25_EN_03_163242 Translation of Original Operating and Installation Instructions English 23...

Page 24: ...KNF worldwide Please find your local KNF partners at www knf com...