KNF NF 2.35 Bedienungsanleitung

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions Keep for future reference!

DIAPHRAGM LIQUID PUMP

NF 2.35

Operating and

Installation

Instructions

Read and observe these Oper-

ating and Installation Instruc-

tions!

An additional letter prefixing

the NF model code 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

7. Operation................................................................................ 13

8. Servicing................................................................................. 15

9. Troubleshooting...................................................................... 17

10. Decontamination declaration.................................................. 19

KNF Flodos AG

Wassermatte 2

6210 Sursee, Switzerland

Tel +41 (0)41 925 00 25

Fax +41 (0)41 925 00 35

www.knf-flodos.ch

info@knf-flodos.ch

NF 2.35 XP DC 24V

- / PMLxxxx / PLxxxx [Ch. 1]

2.35

XP / XT [Ch. 4]

DCB-B / DCB-4B

Supply voltage [Ch. 4]

Diaphragm liquid pump NF 2.35 About this document

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 2

1. About this document

Disclaimer of liability

KNF accepts no liability for any damage caused by failure to

follow the operating instructions.

1.1. Use of the Operating and Installation Instruc-

tions

The Operating and Installation Instructions are part of the pump.

➔Forward the Operating and Installation Instructions to any

subsequent owners of the pump.

Customer-specific project pumps (pump models which begin with

"PL" or "PML") may differ from the Operating and Installation

Instructions.

➔In the case of project pumps, take note of any additionally

agreed specifications.

1.2. Symbols and 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 danger.

➔Here you will see actions for avoiding the danger

and potential consequences.

Danger levels

Signal word

Meaning

Consequences if not observed

DANGER

warns of immedi-

ate danger

Consequences include death or

serious injuries and/or serious

property damage

WARNING

warns of potential

danger

Death or serious injuries and/or

serious property damage are

possible

CAUTION

warns of a poten-

tially dangerous

situation

Minor injuries or damage to

property are possible

Tab. 1

Other information and symbols

➔This indicates an activity (step) that must be carried out.

This indicates the first step of an activity to be carried out. Any

additional steps required are numbered consecutively.

This symbol indicates important information.

Project pumps

Diaphragm liquid pump NF 2.35 Use

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 3

2. Use

2.1. Intended use

The pumps are intended for transferring liquids.

Owner's responsibility

The pumps must only be installed and operated under the operat-

ing parameters and conditions described in Chapter 4, Technical

data.

Before transferring or metering a medium, check whether the

medium can be transferred danger-free in the specific 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 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 with sufficiently large filter area must be used

upstream of the pump.

2.2. Improper use

DANGER

The pumps must not be operated in an explosive

atmosphere.

DANGER

The pumps must not be used to transfer liquids in

systems in which there is a risk of bursting due to

overpressure.

For special modifications outside the standard technical specifica-

tions, please contact your KNF technical adviser.

Operating parameters and

conditions

CAUTION

The pump and hoses generate vibrations

➔The pump and hoses must be secured before

the pump is switched on.

➔Only completely installed pumps may be taken

into service.

Requirements for

transferred medium

Risk of explosion

Risk of bursting

Diaphragm liquid pump NF 2.35 Safety

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 4

3. Safety

Observe the safety precautions in Chapters

6. Installation and connection and 7. Operation.

The pumps are built according to the generally recognised rules of

technology and in accordance with the pertinent occupational

safety and accident prevention regulations. Nevertheless, dangers

may occur during their use which may lead to injuries to the user or

others, or to damage to the pump or other property.

Only use the pumps when they are in a good technical and proper

working order, in accordance with their intended use, observing the

safety advice within the Operating and Installation Instructions, at

all times.

Make sure that only trained and instructed personnel or specially

trained personnel work on the pumps. This especially applies to

assembly, connection and servicing work.

Make sure that all personnel have read and 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 operating the pump.

When transferring dangerous media, observe the safety regula-

tions for handling such media and read and observe the safety

data sheets.

Always ensure adherence to all information stickers on the pumps,

such as flow direction arrows and type plates, and keep stickers in

legible condition.

All replacement parts should be properly stored and disposed of in

accordance with the applicable environmental protection regula-

tions. Ensure adherence to the pertinent national and international

regulations. This especially applies to parts contaminated with toxic

substances.

Dispose of all packaging in an environmentally-appropriate

manner. The packaging materials are recyclable.

Ensure that the old appliance is disposed of in an envi-

ronmentally-appropriate manner. Use appropriate waste

collection systems for the disposal of end-of-life equip-

ment. Used pumps contain valuable recyclable materials.

Personnel

Working in a

safety-conscious manner

Handling dangerous media

Information

Environmental protection

Disposal

Diaphragm liquid pump NF 2.35 Safety

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 5

The pumps comply with the fundamental requirements of Directive

2011/65/EU (RoHS2).

The pumps comply with the safety requirements regarding elec-

tromagnetic compatibility in Directive 2004/108/EG.

For the purposes of the Machinery Directive 2006/42/EG, pumps

are “partly completed machinery", and are therefore to be regarded

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 to the provisions of the Machinery Directive

2006/42/EG. The essential requirements of Annex I of Directive

2006/42/EG (general principles) are applied and observed.

The following harmonised standards are met:

NF 2.35 DCB-B / DCB-4B

▪IEC/EN 61000-6-2

▪IEC/EN 61000-6-3

All repairs to the pump(s) must be carried out by the relevant KNF

customer service team.

Only use genuine parts from KNF for servicing work.

EU directives/standards

Customer service and

repairs

Diaphragm liquid pump NF 2.35 Technical data

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 6

4. Technical data

Pump materials

The pump type XP stands for:

Parts in contact with media

Material1)

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

Material1)

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)

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

Diaphragm liquid pump NF 2.35 Technical data

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 7

Specifications NF 2.35 DCB-B / DCB-4B

Motor variant

DCB-B

DCB-4B

Supply voltage [V]

10..26.4

Power consumption [W]

10.3

12.3

Max. I load [A]

0.86

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

Parameter

Value

Permissible

ambient temperature range [°C]

+5 to +40

Permissible media temperature range [°C]

+5 to +80

Permissible kinematic viscosity of medium

[cSt]

≤150

Tab. 7

CAUTION

Risk of burns when transferring hot media

➔Do not touch the pump or the media transfer

system.

➔Avoid contact with flammable materials.

Diaphragm liquid pump NF 2.35 Assembly and function

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 8

5. Assembly and function

Assembly

1Outlet

2Inlet

3Head plate

4Connecting plate

5Intermediate plate

6Motor

7Connecting lead

Fig. 1: Diaphragm liquid pump

1Outlet valve

2Inlet valve

3Working chamber

4Diaphragm

5Eccentric

6Connecting rod

7Pump drive

Fig. 2: Pump assembly

The diaphragm liquid pumps are based on reciprocating displace-

ment pump technology. The elastic diaphragm (4) is moved up and

down by the eccentric (5) and the connecting rod (6). In the down-

ward stroke it aspirates the medium to be transferred via the inlet

valve (2). In the upward stroke, the diaphragm pushes the medium

out of the pump head via the outlet valve (1). The diaphragm

hermetically seals off the working chamber (3) from the pump drive

(7).

Diaphragm liquid pump NF 2.35 Installation and connection

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 9

6. Installation and connection

Please note:

Chapter 2 Use

Chapter 3 Safety

Chapter 4 Technical data

Only install the pumps under the operating parameters and condi-

tions permitted in these 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: Mounting dimensions NF 2.35 DCB-4B

➔Make sure that the installation location is dry and the pump is

protected against water in the form of rain, spray, splashes and

drips.

➔Protect the pump against dust.

➔Protect the pump against vibration and impact.

➔The pump can be mounted in any orientation.

Mounting dimensions

Installation location

Installation position

Diaphragm liquid pump NF 2.35 Installation and connection

KNF Flodos AG BA_NF2-35_EN_02_164912

Translation of original Operating and Installation Instructions 10

6.1. Electrical connection

➔Only have the pump connected by an authorized specialist.

➔Only 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 pump

Make sure that the power supply data match the data on the

motor's type plate. The current consumption can be found on

the type plate.

Connect motor lead For electrical data see Chapter 4.

Note the proper polarity.

red motor lead: +

black motor lead: -

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