INOXPA OVERFLOW Manuel

INSTALLATION, SERVICE AND MAINTENANCE

INSTRUCTIONS

ANNEX FOR EC ATEX REGISTERED EQUIPMENT UNDER

DIRECTIVE 2014/34/EU:

Ex OVERFLOW VALVE

The contents of this Annex complements the information included in the

instruction manual. The instructions of this Annex must be observed

whenever equipment registered under Directive 2014/34/EU is used.

Original Manual

10.207.30.01EN

(A) 2022/11

If applicable, this Annex will be complemented with the manuals of the

ATEX registered components that form part of the assembly (e.g., seals,

etc.).

(1) the serial number may be preceded by a slash and by one or two alphanumeric characters

EU Declaration of Conformity ATEX 2014/34/EU

We,

INOXPA, S.A.U.

Telers, 60

17820 –Banyoles (Girona)

Hereby declare under our sole responsibility that the machine

VALVE

Model

OVERFLOW

From serial number IXXXXXXXXX to IXXXXXXXXX (1)

Fulfills all the relevant provisions of Safety and Health from ATEX 2014/34/EU Directive and

are adapted to the harmonized norms:

EN ISO 80079-36:2016

EN ISO 80079-37:2016

EN 1127-1:2019

EN 13237:2012

EN 15198:2007

This Declaration of Conformity covers equipment with the following ATEX marking:

The technical documentation referenced 019074/18 is on file with the notified body INSTITUT

NATIONAL DE L’ENVIRONNEMENT INDUSTRIEL ET DES RISQUES (INERIS), Parc

Technologique Alata BP 2, 60550 Verneuil-en-Halatte, France. Reference num. 0080.

Signed by and on behalf of:

INOXPA, S.A.U.

David Reyero Brunet

Technical Office Manager

Banyoles, 2022

II 2G Ex h IIB T6…T3 Gb

II 2D Ex h IIIB T85 ºC…T200 ºC Db

10.207.30.06EN

(0) 2022/11

_______________________________________________________________________________________________

ED. 11/2022 1. SAFETY OVERFLOW VALVE

1. Safety

1.1. INSTRUCTIONS MANUAL

1.2. START-UP INSTRUCTIONS

1.3. SAFETY

1.3.1. Warning symbols

Danger! Important instructions for protection from explosions.

1.4. GENERAL SAFETY INSTRUCTIONS

1.4.1. During installation

To reduce the risk of static electricity, the assembly must be earthed to ensure

electrical continuity between the pipes and the valve

1.4.2. During operation

The limits of the operating conditions in explosive atmospheres must not be exceeded

This valve was selected according to the operating conditions specified by the user.

Therefore, INOXPA disclaims liability for any damage caused by the use of the valve

under conditions other that those set forth in the order

1.4.3. During maintenance

Danger! Important instructions for protection from explosions.

An explosive atmosphere may be generated or be present when the valve is being

disassembled, so safe-work permits must be issued and these jobs must only be done

by qualified or trained personnel

1.4.4. Compliance with the instructions

Any non-fulfilment of the instructions may result in a risk for the operators, the environment, the

machine, and the installations, and may result in the loss of your right to claim damages.

This failure to comply may create the following risks (in addition to those already indicated in the

manual):

-Creation of explosive atmospheres and the risk of explosion.

_______________________________________________________________________________________________

ED. 11/2022 1. SAFETY OVERFLOW VALVE

1.5. GUARANTEE

Any guarantee will be cancelled immediately and as a matter of law and, in addition, we will require

compensation for any claims of civil liability presented by third parties, in case (in addition to the

conditions already indicated in the manual):

- The material has been badly used or has not been used according to the operating conditions in the

classified area, operating in a different classified area, temperature or pressure conditions, and/or with a

different substance.

_______________________________________________________________________________________________

ED. 11/2022 2. TABLE OF CONTENTS OVERFLOW VALVE

2. Table of Contents

The indications of such sections must be observed in addition to those of

the valve manual.

1. Safety

1.1. Instructions manual 3

1.2. Instructions for starting up 3

1.3. Safety 3

1.4. General safety instructions 3

1.5. Guarantee 4

2. Table of Contents

3. Receiving and installation

3.1. Checking the shipment 6

3.2. Delivery and unpacking 6

3.3. Identification 6

3.4. Location 7

3.5. Flow direction 7

3.6. Overflow valve position 7

3.7. Assembly 7

3.8. Inspecting and checking 8

3.9. Welding 8

4. Start-up

4.1. Single-seat VALVE application 9

4.2. Starting up 9

4.3. Operation 9

4.4. Valve calibration 9

5. Operating problems: Causes and solutions

6. Maintenance

6.1. General 11

6.2. Maintenance 11

6.3. Cleaning 12

7. Assembly and disassembly

7.1. Disassembly / Assembly of the overflow valve fig: 74700 13

7.2. Disassembly / Assembly of the overflow valve fig: 74700M 14

7.3. Disassembly / Assembly of the overflow valve with PTFE seat 15

7.4. Disassembly / Assembly of the overflow valve fig: 74700M with PTFE seat 16

8. Technical Specifications

8.1. Overflow valve dimensions 18

8.2. Section and parts list 19

_____________________________________________________________________________________

_______________________________________________________________________________________________

ED. 11/2022 3. RECEIVING AND INSTALLATION OVERFLOW VALVE

3.Receiving and installation

3.1. CHECKING THE SHIPMENT

The received valve must be checked to ensure that it is adapted to the working

conditions in the classified area and the conditions stated in the order

3.2. DELIVERY AND UNPACKING

3.2.1. Delivery

3.2.2. Unpacking

3.3. IDENTIFICATION

In the case of ATEX valves, additional identification will be established with the following:

The temperature class and the maximum surface temperature depend on the temperature of the product to

be stirred and the ambient temperature.

Temperature class for explosive gas atmospheres

Temperature

class

Product temperature (in process

or cleaning)

Room temperature

≤ 60 °C

-20 °C to +40 °C

≤ 75 °C

≤ 110 °C

≤ 140 °C

Maximum surface temperature for explosive dust atmospheres

Maximum

surface

temperature

Product temperature (in process

or cleaning)

Room temperature

T85 °C

≤ 85 °C

-20 °C to +40 °C

T100 ºC

≤ 100 °C

T125 ºC

≤ 125 °C

T 200 °C

≤ 200 °C

3.4. LOCATION

3.5. FLOW DIRECTION

3.6. OVERFLOW VALVE POSITION

3.7. ASSEMBLY

To reduce the risk of static electricity, the assembly must be earthed to ensure

electrical continuity between the pipes and the valve

II 2G Ex h IIB T6…T3 Gb

II 2D Ex h IIIB T85ºC…T200 oC Db

_____________________________________________________________________________________

_______________________________________________________________________________________________

ED. 11/2022 3. RECEIVING AND INSTALLATION OVERFLOW VALVE

3.8. INSPECTING AND CHECKING

3.9. WELDING

Safe-work permits shall be required for any welding work in potentially explosive

atmospheres. It is strongly recommended that this type of work be carried out in

non-classified atmospheres (i.e. there must not be an explosive atmosphere in the

location of the valve when it is being handled)

3.9.1. Welding/welding overflow valve. Fig. 74700.

_____________________________________________________________________________________

_______________________________________________________________________________________________

ED. 11/2022 4. START-UP OVERFLOW VALVE

4.Start-up

4.1. VALVE APPLICATIONS

4.2. STARTING UP

The received valve must be checked to ensure that it is adapted to the working

conditions in the classified area and the conditions stated in the order

Ensure that there is electrical continuity between the valve and the installation,

and that the installation has an earth connection

4.3. OPERATION

Do not modify the operating parameters for which the valve has been designed

without written prior authorisation from INOXPA

The valve was selected for specific working conditions in potentially explosive

atmospheres at the time the order was placed. INOXPA will not be responsible for

any damage which may be caused if the information provided by the buyer is

incomplete or incorrect (type of liquid, viscosity, classification of the potentially

explosive zone, gas generated by the potentially explosive atmosphere, etc.)

4.4. VALVE CALIBRATION

_____________________________________________________________________________________

_______________________________________________________________________________________________

ED. 11/2022 6. MAINTENANCE OVERFLOW VALVE

6.Maintenance

6.1. GENERAL

Valves must only be assembled and disassembled by qualified staff, taking into

account that it is necessary to adopt safe-work permits if working in a potentially

explosive atmosphere

6.2. MAINTENANCE

6.2.1. Maintenance of the seals

6.2.2. Storage

6.2.3. Spare parts

When ordering spare valve parts to work in a classified area, the order must explicitly indicate

that the parts will be used in an ATEX area, and must state the characteristics of that area.

Otherwise, INOXPA cannot ensure that the valve operates with parts that are suitable for the

classified area within which it is installed.

6.3. CLEANING

Before starting disassembly and assembly work, the presence or possible formation

of potentially explosive atmospheres must be taken into account

_____________________________________________________________________________________

_______________________________________________________________________________________________

ED. 11/2022 7. ASSEMBLY AND DISASSEMBLY OVERFLOW VALVE

7.Assembly and disassembly

Valves must only be assembled and disassembled by qualified staff, taking into

account that it is necessary to adopt safe-work permits if working in a potentially

explosive atmosphere

7.1. DISASSEMBLY / ASSEMBLY OF THE OVERFLOW VALVE FIG: 74700

7.2. DISASSEMBLY / ASSEMBLY OF THE OVERFLOW VALVE FIG: 74700M

7.3. DISASSEMBLY / ASSEMBLY OF THE OVERFLOW VALVE WITH PTFE SEAT FIG:

7.4. DISASSEMBLY / ASSEMBLY OF THE OVERFLOW VALVE FIG: 74700M WITH PTFE

SEAT

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