KNF NF 2.35 Скачать руководство пользователя страница 6

Diaphragm liquid pump NF 2.35 

Technical data 

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

 

4.  Technical data 

Pump materials 

The pump type 

XP

 stands for: 

Parts in contact with media 

Material

1)

 

Pump head 

2)

 

PEEK 

Valve plate 

EPDM 

O-ring 

EPDM 

Diaphragm 

EPDM 

Resonating Diaphragm 

PTFE 

Tab. 2 

The pump type 

XT

 stands for: 

Parts in contact with media 

Material

1)

 

Pump head 

2)

 

PEEK 

Valve plate 

FFKM 

O-ring 

FFKM 

Diaphragm 

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) [bar g] 

3)

 

16 

Flow rate [ml/min] 

4)

 

350 

Max. suction head [mWG] 

Max. inlet pressure [bar]

 3)

 

0.5 

Tab. 4 

3) 

Higher pressures are possible on a project basis 

4) 

Measured with water at 20 °C. Flow rates may vary from the values 

shown, depending on fluid viscosity, pump head material and the hos-
es/hose connectors used. 

Hydraulic connections 

Parameter 

Value 

Push-in fittings external Ø [mm] 

4 ± 0.1 

Push-in fittings external Ø [inches] 

5/32 ± 0.004 

Recommended hose OD x ID [mm] 

4.0 x 2.5 

Tab. 5 

 

 

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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