KNF NF 1.100 EX Bedienungsanleitung

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 1

DIAPHRAGM LIQUID PUMP

EXPLOSION-PROOF VERSION

NF 1.100 EX

Pump: II 2G Ex h IIB T5 Gb / Motor: II 2G Ex db IIC T4 Gb

Operating and

Installation Instructions

Read and observe these Operating and

Installation Instructions!

For pumps with a drive motor: be sure to

also read and observe the drive motor's

Operating and Installation Instructions,

which must be considered part of the

pump's Operating and Installation Instruc-

tions.

Due to separate certification of the me-

chanical (pump) and electric (drive motor)

parts, the device has two rating plates.

Each rating plate describes only the part

of the device to which it is applied.

An additional letter prefixing the NF model

code is a country-specific designation,

with no technical relevance.

Contents Page

1. About this document................................................................. 2

2. Use ........................................................................................... 3

3. Safety ....................................................................................... 7

4. Technical data ........................................................................ 10

5. Assembly and function ........................................................... 12

6. Installation and connection..................................................... 13

7. Operation................................................................................ 18

8. Servicing................................................................................. 20

9. Troubleshooting...................................................................... 25

10. Decontamination declaration.................................................. 28

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 1.100 KP .27 Ex 230V

- / PMLxxxx / PLxxxx [Ch. 1]

Supply voltage [Ch. 4]

.27 / - [Ch. 5]

KP / KT / TT [Ch. 4]

NF / UNF / JNF

1.100

TPS 19 ATEX 039495 0007 X

Diaphragm liquid pump NF 1.100 EX About this document

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 2

1. About this document

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.

The Operating and Installation Instructions apply to the pump

without drive motor.

➔Observe also the drive motor's Operating and Installation

Instructions.

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 damage to property 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

Drive motor

Diaphragm liquid pump NF 1.100 EX Use

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 3

2. Use

2.1. Intended use

The pumps are intended for transferring and metering liquids.

Owner's responsibility

Only install and operate the pumps under the operating parameters

and conditions described in Chapter 4, Technical data, and Section

2.3, Using the pump in a potentially explosive atmosphere.

Only complete pumps may be taken into service.

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 < 100 m with sufficiently large filter area must be

used upstream of the pump.

2.2. Improper use

For special modifications outside the standard technical specifica-

tions, please contact your KNF technical adviser.

2.3. Using the pump in a potentially explosive

atmosphere

Only pumps of the appropriate Equipment Category and tempera-

ture class must be operated in potentially explosive atmospheres

(areas).

Such pumps have the following explosion prevention and protec-

tion markings:

Marking

Description

Symbol for explosion-proof pumps

Equipment Group (see Section 2.4.1)

Equipment Category (see Section 2.4.2)

Type of Protection (see Section 2.4.6)

II A and II B

Explosion Groups (see Section 2.4.4)

Temperature Class (see Section 2.4.3)

EPL (Equipment Protection Level)

Tab. 2

The explosion prevention and protection markings can also be

found in the following location:

▪Rating Plate

The drive motor of the pump must have at least the same explo-

sion prevention and protection as the pump itself.

Operating parameters and

conditions

Requirements for

transferred medium

Drive motor

Diaphragm liquid pump NF 1.100 EX Use

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 4

2.4. Explanation of explosion prevention and pro-

tection markings

2.4.1. Equipment groups

Equipment Group 1 applies to equipment for use in the under-

ground operations of mines and any of their surface installations

that may be at risk from methane and/or combustible dust.

Equipment Group II applies to equipment for use in other areas

which may be at risk from explosive atmosphere.

2.4.2. Equipment Categories for gas

The Equipment Category describes the frequency and duration of

occurrence of explosive atmospheres in an area.

Equipment

Category

Description*

Constructional

safety

Areas in which hazardous explosive atmospheres are likely to occur

continuously, for long periods or frequently.

Very high

Areas in which hazardous explosive atmospheres are likely to occur

occasionally.

High

Areas in which it is unlikely that hazardous explosive atmospheres

will occur, or if they do occur, are only likely to do so infrequently and

for a short time.

Normal

Tab. 3 *in accordance with EN 1127-1

2.4.3. Temperature classes

The maximum surface temperature is the highest temperature

reached by one of the pump's surfaces under worst case condi-

tions.

The maximum surface temperature of the pump must always be

lower than the lowest ignition temperature of the gas or vapour/air

mixture in which it is operated.

The maximum surface temperature depends on the design of the

pump, and is shown as a temperature class.

Temperature class

Max. surface tem-

perature [°C]

Ignition temperature

[°C]

≤ 450

> 450

≤ 300

> 300

≤ 200

> 200

≤ 135

> 135

≤ 100

> 100

≤85

> 85

Tab. 4

Equipment Group I

Equipment Group II

Maximum surface

temperature

Ignition temperature

Temperature class

Diaphragm liquid pump NF 1.100 EX Use

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 5

2.4.4. Explosion Groups

Flammable gases and vapours are classified into explosion groups

(I, IIA, IIB and IIC) and temperature classes. Tab. 5 shows the

classifications of the most common flammable gases and vapours.

Methane

–

IIA

Acetone

Ethane

Ethyl acetate

Ammonia

Ethyl chloride

Benzene

Acetic acid

Carbon monoxide

Methane

Methanol

Methyl chloride

Naphthalene

Phenol

Propane

Toluene

i-amyl acetate

n-butane

n-butyl alcohol

Cyclohexanone

1,2 dichloroethane

Acetic anhydride

Benzene

Diesel fuel

Aviation turbine

fuel

Heating oils

n-hexane

Acetaldehyde

–

IIB

Town gas

Ethylene

Ethyl alcohol

Hydrogen

sulphide

Ethyl ether

–

IIC

Hydrogen

Acetylene

–

Carbon

disulphide

Tab. 5

The classification of gases and vapours into groups according to

explosion group and temperature class applies to both the medium

to be transferred and the environment of the pump.

The pumps must only be used to transfer gases and vapours that

are either not explosive or belong to explosion groups II A or II B

and temperature class T4 (or lower) (shaded area in Tab. 5).

The pumps must only be used in an environment containing an

atmosphere that is either not explosive or belongs to explosion

groups II A or II B and temperature class T4 (or lower) (shaded

area in Tab. 5).

Transferred medium

Pump environment

Diaphragm liquid pump NF 1.100 EX Use

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 6

2.4.5. Types of protection

Designation

Description

Protection by Control of Ignition Source

Constructional safety

Liquid encapsulation

Flameproof enclosure

Increased safety

Intrinsic safety

Pressurisation

Encapsulation

Oil immersion

Powder filling

Non-sparking

Several meanings

Vapour proof housing

Energy-limited

(varies between North America and Europe)

Simplified pressurisation

Tab. 6

Diaphragm liquid pump NF 1.100 EX Safety

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 7

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.

Observe the accident prevention and safety regulations when

performing any work on the pump and during operation.

When transferring dangerous medium, observe the safety regula-

tions for handling such medium.

Always ensure adherence to all information stickers on the pumps,

such as flow direction arrows and rating 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.

Dispose of end-of-life equipment in an environmentally

friendly manner. Use appropriate waste collection systems

for the disposal of end-of-life equipment. Used pumps

contain valuable recyclable materials.

The pumps conform to the safety requirements regarding electro-

magnetic compatibility in Directive 2004/108/EC.

For the purposes of the Machinery Directive 2006/42/EC, 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

Personnel

Working in a

safety-conscious manner

Handling dangerous medium

Notes

Environmental protection

Disposal

EU directives/standards

Diaphragm liquid pump NF 1.100 EX Safety

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 8

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

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

The pumps comply with Directive 2014/34/EU concerning equip-

ment and protective systems for intended use in explosive atmos-

pheres, and with the standards ISO 80079-36 and ISO 80079-37

for ex areas.

The "Directives for the prevention of risks from explosive atmos-

pheres with a collection of examples –explosion prevention and

protection directives –(EX-RL)" should be observed when classify-

ing a pump environment in an explosion-proof area.

In special cases or where there is doubt when defining potentially

explosive atmospheres, notify the supervisory authorities and ask

them to decide.

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.

Safety concept

A risk analysis was carried out in accordance with EN 1127-1.

Ignition sources

If the pump compresses against the maximum permissible operat-

ing pressure, the temperature of the head will not exceed the

maximum surface temperature because the head is able to transfer

heat to its environment. The pump's environment must therefore

be adequately ventilated.

The projected surface area of the non-conductive parts which may

become electrostatically charged is less than 100cm2. The total

surface area of electrically insulated metal disks is very small, in

addition to which the screw heads are countersunk in the pump

head. As a result there should be no risk of ignition from the elec-

trostatically chargeable parts.

As a result of the material used inside the pump, the possibility that

critical material combinations may come into contact is excluded.

In addition, these are mounted pumps, which should preferably be

installed in housings and are made of plastic.

The nuts and bolts used are made of stainless steel, so contact

with critical materials is unlikely.

EU directives/standards

Customer service and

repairs

Risk analysis

Heating of head

Electrostatic

charge

Mechanically

generated sparks

Diaphragm liquid pump NF 1.100 EX Safety

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 9

Rupturing of the diaphragm and separation of the steel portion is

unlikely. However, this would be noticed at once because flow rate

would fall considerably. In the event of damage, the loose steel

component would be channelled by the pump housing. Even in the

event of a malfunction, no sparks would therefore be generated

mechanically.

Replacing the diaphragm is described in Chapter 8, Servicing.

Have ball bearings replaced in accordance with the servicing

schedule in Chapter 8.1.

Rupturing of diaphragm

Failure of ball bearings

Diaphragm liquid pump NF 1.100 EX Technical data

KNF Flodos AG BA_NF1.100EX_EN_05_152147

English translation of original Operating and Installation Instructions 10

4. Technical data

Pump materials

The pump type KP stands for:

Assembly

Material1)

Pump head*

Valve plate

EPDM

Diaphragm

PTFE-coated

Resonating diaphragm

PTFE

Diaphragm. 27

EPDM

Tab. 7 1) according to DIN ISO 1629 and 1043.1

The pump type KT stands for:

Assembly

Material1)

Pump head*

Valve plate

FFKM

Diaphragm

PTFE-coated

Resonating diaphragm

PTFE

Diaphragm. 27

FFKM / FKM

Tab. 8 1) according to DIN ISO 1629 and 1043.1

The pump type TT stands for:

Assembly

Material1)

Pump head*

PVDF

Valve plate

FFKM

Diaphragm

PTFE-coated

Resonating diaphragm

PTFE

Diaphragm. 27

FFKM / FKM

Tab. 9 1) according to DIN ISO 1629 and 1043.1

* The pump head (Fig. 1) comprises a connecting plate and an intermedi-

ate plate

Hydraulic ratings

Parameter

Value

Flow rate [l/min] 1), 2)

1.0

Max. permissible pressure NF 1.100 [bar g]

Suction head [mWG]

2.5

Tab. 10

1) Measured with water at 20°C / at atmospheric pressure

2) Flow rates may vary from the values shown, depending on fluid viscosi-

ty, pump head material and the hoses / hose connectors used.

Hydraulic connections

Parameter

Value

NF 1.100

G 1/8"

UNF 1.100

NPT 1/8"

Recommended hose size ID [mm]

Tab. 11

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