KNF NF 1.300 EX Operating And Installation Instructions

Diaphragm liquid pump

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DIAPHRAGM LIQUID PUMP

EXPLOSION-PROOF VERSION

NF 1.300 EX

Pump:

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

NF 1.300 KP .27 Ex 230V

KP / KT / TT

1.300

NF / UNF / JNF

- / PMLxxxx / PLxxxx [Ch. 1]

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 Instructions.

Due to separate certification of the mechanical

(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.

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

KNF Flodos AG BA_NF1.300EX_EN_05_152146

English translation of original Operating and Installation Instructions

Supply voltage [Ch. 4]

. 27 / - [Ch. 5]

[Ch. 4]

Contents

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

TPS 19 ATEX 039495 0007 X

Page

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Summary of Contents for KNF NF 1.300 EX

Page 1: Table Of Contents
DIAPHRAGM LIQUID PUMP EXPLOSION-PROOF VERSION NF 1.300 EX Pump: II 2G EX h IIB T5 Gb / Motor: II 2G Ex db IIC T4 Gb NF 1.300 KP .27 Ex 230V Supply voltage [Ch. 4] . 27 / - [Ch. 5] KP / KT / TT [Ch.
Page 2: About This Document
Diaphragm liquid pump NF 1.300 EX About this document 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.
Page 3: Use
Diaphragm liquid pump NF 1.300 EX 2.1. Intended use The pumps are intended for transferring and metering liquids. Owner's responsibility Operating parameters and Only install and operate the pumps under the operating parameters conditions and conditions described in Chapter 4, Technical data, and Section 2.3, Using the pump in a potentially explosive atmosphere.
Page 4 Diaphragm liquid pump NF 1.300 EX 2.4. Explanation of explosion prevention and pro- tection markings 2.4.1. Equipment groups Equipment Group I 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.
Page 5 Diaphragm liquid pump NF 1.300 EX 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. –...
Page 6 Diaphragm liquid pump NF 1.300 EX 2.4.5. Types of protection Designation Description Protection by Control of Ignition Source Constructional safety Liquid encapsulation Pressureproof enclosure Increased safety Intrinsic safety Pressurisation Encapsulation Oil immersion Powder filling Non-sparking Several meanings Vapour proof housing...
Page 7: Safety
Diaphragm liquid pump NF 1.300 EX Safety Safety Observe safety precautions 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.
Page 8 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 and Customer Service team.
Page 9 Diaphragm liquid pump NF 1.300 EX Safety Rupturing of diaphragm 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.
Page 10: Technical Data
Diaphragm liquid pump NF 1.300 EX Technical data Technical data Pump materials The pump type KP stands for: Assembly Material Pump head* Valve plate EPDM Diaphragm PTFE-coated Resonating diaphragm PTFE Diaphragm. 27 EPDM Tab. 7 according to DIN ISO 1629 and 1043.1...
Page 11 Diaphragm liquid pump NF 1.300 EX Technical data Specifications NF 1.300 Ex Motor voltage Value Voltage [V] 110 / 115 / 230 Speed [RPM] < 3500 Protection class [IP] Weight 6000 Tab. 12 The weight may differ slightly from the stated value, depending on the version.
Page 12: Assembly And Function
Diaphragm liquid pump NF 1.300 EX Assembly and function Assembly and function Assembly Condenser Outlet Pump head Inlet Motor Motor base plate Pump rating plate Motor rating plate Fig. 1: Diaphragm liquid pump Outlet valve Inlet valve Working chamber Diaphragm...
Page 13: Installation And Connection
Diaphragm liquid pump NF 1.300 EX Installation and connection Installation and connection Only install pumps under the operating parameters and conditions described in Chapter 4, Technical data, and in Section 2.3, Using the pump in a potentially explosive atmosphere. Observe the safety precautions (see Chapter 3).
Page 14 (Fig. 4). Fig. 4: optimum installation position / horizontal Decoupling ➔ KNF recommends mechanically decoupling the pump from the piping system. This can be achieved with flexible hoses or pipes, for example. This prevents any oscillations of the pump being transferred to the system.
Page 15 Diaphragm liquid pump NF 1.300 EX Installation and connection ➔ When connecting the device to a power source, the relevant norms, directives, regulations and technical standards must be observed. Danger of explosion as a result of electrostatic charge ➔ Connect the pump in such a way as to prevent the risk of ignition by electrostatic charge.
Page 16 Diaphragm liquid pump NF 1.300 EX Installation and connection Connecting the pump Connect individual conductors of the motor supply cable to the terminal bar. Tighten the clamping (pressure) screw of the screwed cable gland to a torque of 2.5 Nm.
Page 17 Diaphragm liquid pump NF 1.300 EX Installation and connection 6.3. Hydraulic connection ➔ Only connect components to the pump that are designed to Connected components handle hydraulic data pump (see Chapter 4, Technical data). ➔ Only use hoses that are suitable for the maximum operating Hoses pressure of the pump (see Chapter 4).
Page 18: Operation
Short cycle operation KNF pumps are designed for continuous operation. If the pump is operated with short cycles in your application, please contact a KNF technical adviser for further information (Telephone number: see first page). Switching on the pump ➔ In order to ensure that the pump starts every time, make sure that counterpressure is reduced to an acceptable level before start-up.
Page 19 For more specific information contact your KNF technical adviser. Switching off the pump ➔ KNF recommends: If transferring aggressive liquids, the pump should be flushed thoroughly prior to switch off (see Chapter 8.2.1), as this will help to lengthen the service life of the dia- phragm.
Page 20: Servicing
Depending on the pressure in your system the recommended time interval will vary - see table below. Please contact your local KNF Company to discuss the best way of implementing this service. Operating pressure [bar g] Replacement interval p ≤...
Page 21 Diaphragm liquid pump NF 1.300 EX Servicing Risk of explosion as a result of flushing the pump with air ➔ In potentially explosive atmospheres, or when using the pump with potentially explosive medi- WARNING um, only allow the pump to be flushed with inert gas by specialist personnel.
Page 22 Diaphragm liquid pump NF 1.300 EX Servicing Cleaning the parts Clean the diaphragm (11), O-ring Ø14.5 (4), O-ring Ø39 (5), diaphragm.27 (if fitted) (20), resonating diaphragm (6), or res- onating diaphragm.27 (21), seal (9), valve plate (8), intermedi- ate plate (10) and connecting plate (7) with a cloth and then blow off with compressed air.
Page 23 Diaphragm liquid pump NF 1.300 EX Servicing NF 1.300.27 version 1. Insert resonating diaphragm.27 (21) in the connecting plate (7). 2. Place diaphragm.27 (20) centrally resonating dia- phragm.27 (21). 3. Then place the support.27 (19), the U-washer.27 (18) and the compression spring.27 (17) over the diaphragm.27 (20).
Page 24 Diaphragm liquid pump NF 1.300 EX Servicing 8.4. Adjusting the overflow Test set-up/instrumentation as shown in the diagram. Test set-up for overflow Make sure that the container (a), pump (b), pressure gauge (c) and valve (d) are as level as possible (+/- 15 cm) Fig.
Page 25: Troubleshooting
Diaphragm liquid pump NF 1.300 EX Troubleshooting Troubleshooting Improper repairs and changes to explosion protected machines can create a danger of explosion. ➔ Observe national and international regulations regarding electrical equipment whenever per- WARNING forming servicing and repairs. ➔ Any work that could affect the explosion protec- tion must be completed by the manufacturer.
Page 26 Diaphragm liquid pump NF 1.300 EX Troubleshooting Pump is not priming Possible cause Fault remedy ➔ Replace the pump head with a compatible version. The head parts are not medium- resistant. ➔ Remove pressure and suction lines and re-connect correctly.
Page 27 Fault cannot be rectified If you are unable to identify any of the above causes, please send the pump to KNF customer service (see address on last page). Flush the pump to clear the pump head of any hazardous or aggressive fluids (see Chapter 8.2.1).
Page 28: 10. Decontamination Declaration
Diaphragm liquid pump NF 1.300 EX Decontamination declaration 10. Decontamination declaration KNF shall only undertake to repair the pump on condition that the customer provides certification of the transferred medium and the cleaning of the pump (decontamination declaration). ➔ In order to send a product back use the decontamination declaration, which either was delivered with the product or is available on www.knf.com (Downloads).
Page 32 KNF worldwide Please find your local KNF partners at: www.knf.com...

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