INOXPA BUTTERFLY Manual

1
INSTALLATION, SERVICE AND
MAINTENANCE INSTRUCTIONS
ANNEX FOR CE ATEX REGISTERED EQUIPMENT UNDER
DIRECTIVE 2014/34/EU:
Ex BUTTERFLY VALVES
The contents of this Annex complements the information included in the
instruction manual. The instructions of this Annex must also be observed
whenever equipment registered under Directive 2014/34/EU is used.
Original Manual
10.001.30.01EN
(A) 2022/11
If applicable, this Annex is complemented with the manuals of ATEX
registered components which form part of the assembly (e.g., actuators,
inductive sensors, 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
BUTTERFLY
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 018028/15 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
10.001.30.10EN
(0) 2022/11

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ED. 11/2022 1. SAFETY
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1. Safety
1.1. INSTRUCTION MANUAL
1.2. INSTRUCTIONS FOR START-UP
1.3. SAFETY
1.3.1. Warning symbols
Danger. Important indications for protection against explosions.
1.4. GENERAL SAFETY INSTRUCTIONS
1.4.1. During installation
To reduce danger originating from static electricity, the assembly should be
grounded to ensure electric continuity between the pipes and valves.
1.4.2. During operation
The limit values of the working conditions in an explosive atmosphere should not be
exceeded.
The valve was selected according to the working conditions specified by the user, for
which INOXPA will not be liable for damages which may be caused from using the
valve under different conditions to those indicated in the order, according to the
ATEX (F-O-PED-01) form.
1.4.3. During maintenance
Danger. Important indications for protection against explosions.
An explosive atmosphere may be generated or may exist during the disassembly of
the valve, for which reason safe work permits should be issued and these tasks
should only be carried out by qualified and trained personnel.
1.4.4. In compliance with the instructions
Any nonfulfillment of the instructions may result in risk for the operators, the environment, the machine
and the installations, and may result in the loss of any right to claim damages.
This nonfulfillment may result in the following risks (in addition to those already indicated in the
manual):
- Generation of explosive atmospheres and risk of explosion.

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ED. 11/2022 1. SAFETY
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1.5. GUARANTEE
Any guarantee will be cancelled immediately and as a matter of law, in addition to any claim made by
third parties for civil liability being payable to us (in addition to the conditions already indicated in the
manual) in case:
- The material is used incorrectly or is not used according to the working conditions in the classified area,
operating in a different classified area, temperature or pressure conditions and/or using a different
substance.

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ED. 11/2022 2. TABLE OF CONTENTS
4
2. Table of Contents
Sections in italics include changes with respect to the manual. The
indications of these sections should be observed in addition to those of the
valve manual.
1. Safety
1.1. Instruction Manual ...……………………………… ...………………….….………...…………...… 3
1.2. Instructions for start-up ………………………………………………………………...………….… 3
1.3. Safety ………………………………………………….………………………………………….................….. 3
1.4. General safety instructions …………..…………………………………………………..……….…….….… 3
1.5. Guarantee………………………………..……….…………………………………………………...………… 4
2. Table of Contents
3. Receipt and installation
3.1. Check shipment ………………………………………………………………………..….……………….…… 6
3.2. Delivery and unpacking.………...……………………………………………..…...………………… 6
3.3. Identification .……………………...………………………………….………………..………………….…… 6
3.4. Site…………... ……………………………………………………………..……………...………… 7
3.5. Assembly.…………………………………………………………………..………………………… 7
3.6. Checking and inspection....………….…………………………………….………….…….………… 7
3.7. Welding ……………………………………...…………………………………..……..…………..…….……… 7
3.8. Actuator air connection…… …………………………………………..…………………...………… 8
4. Start-up
4.1. Starting …………. ...............…………………………………………………...……………………….……… 9
4.2. Operation……… …………………..………………………………….……...…………………………….…… 9
5. Operating incidents: Causes and solutions
6. Maintenance
6.1. General information ...………………………………………………………………………..………..…...… 11
6.2. Maintenance…..…………………………………………………………………………………...… 11
6.3. Cleaning …………………….…………………...……………..…….………………………………….…….. 12
7. Assembly and disassembly
7.1. Disassembly/Assembly of the valve with two-position handlever ..….………………..………....… 13
7.2. Disassembly/Assembly of the valve with multiposition handlever…………………..………..…...… 14
7.3. Disassembly/Assembly of the valve with pneumatic actuator.…...…….…………..………..…...… 15
7.4. Assembly of the joint..………………………………………………………………………..…...… 16
7.5. Actuator assembly options …….… ….……………………………………………………..………..…...… 16
8. Technical specifications
8.1. Technical specifications ……….…………………………………………………………......…… 17
8.2. Dimensions of the manual valve... … .……..……………………….…………………………….... 18
8.4. Dimensions with pneumatic coupling…… ………………………………………………….…….... 19
8.5. Section and list of parts .…...……………………………………………..………………………… 20
8.6. List of parts… ………………………………………………………………..………………….…. 20

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ED. 11/2022 3. RECEIPT AND INSTALLATION
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3.Receipt and installation
3.1. CHECK SHIPMENT
It should be checked that the valve received adheres to the working conditions in
the classified area and the conditions of the order.
3.2. DELIVERY AND UNPACKING
3.2.1. Delivery
3.2.2. Unpacking
3.3. IDENTIFICATION
In case of ATEX valves, the following identification will be used on a complementary basis:
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
T6
≤ 60 °C
-20 °C to +40 °C
T5
≤ 75 °C
T4
≤ 110 °C
T3
≤ 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. SITE
3.5. ASSEMBLY
To reduce danger originating from static electricity, the assembly should be
grounded to ensure electric continuity between the pipes and valve.
3.6. CHECKING AND INSPECTION
II 2G Ex h IIB T6…T3 Gb
II 2D Ex h IIIB T85 oC…T200 oC Db

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ED. 11/2022 3. RECEIPT AND INSTALLATION
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3.7. WELDING
Safe work permits should be issued for any welding work in the presence of
potentially explosive atmospheres, with it being advised that this type of work be
carried out in unclassified atmospheres (there is no explosive atmosphere in the
location of the valve during handling).
3.7.1. Weld/weld butterfly valve
3.7.2. Sandwich butterfly valve
3.7.3. Valve with pneumatic operation
In case that the pneumatic actuator is not supplied by INOXPA, this should comply
with the specifications of ATEX Directive 2014/34/EU and all the supplier's
specifications should be observed at all times.
3.8. ACTUATOR AIR CONNECTION
RESPONSIBILITY FOR ATEX CERTIFICATION
In case that INOXPA, S.A. supplies a valve without actuator, control head or proximity detectors, the
certification mark of protection against explosion is only relative to the valve. All the equipment mounted
should have separate certification, furnished by the equipment manufacturer and, as a minimum, with the
same or a grade higher of protection than the valve. The complete group should be separately certified by
the equipment manufacturer and should include a different marking to that of the valve.
In case that INOXPA, S.A. supplies the complete group, the certification against explosion and the mark
engraved on the valve itself will be relative to the specific group.

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ED. 11/2022 4. START-UP
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4.Start-up
4.1. STARTING
It should be verified that the valve received adheres to the working conditions in
the classified area and the requested conditions.
Ensure that there is an electric continuity between the valve and the installation, as
well as that the installation has electric grounding.
Under no circumstances can the handlever be removed, since this would leave the
butterfly electrically isolated.
4.2. OPERATION
Do not modify the operating parameters for which the valve/actuator have been
designed without prior written authorization from INOXPA.
This valve was selected for a given set of working conditions in potentially explosive
atmospheres when the order was placed in accordance with the ATEX (F-O-PED-
01) Form. INOXPA will not be liable for any damage resulting from the
incompleteness or inaccuracy of the information provided by the buyer (type of
liquid, viscosity, classification of the potentially explosive area, gas generated by the
potentially explosive atmosphere, etc.).
4.2.1. Operation with two-position handlever
4.2.2. Operation with multiposition handlever

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ED. 11/2022 6. MAINTENANCE
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6.Maintenance
6.1. GENERAL INFORMATION
The assembly and disassembly of the valves (with or without pneumatic operation)
should only be carried out by qualified personnel, taking into consideration that safe
work permits are required in the presence of potentially explosive atmospheres.
In case that the valve does not include the actuator, control head or proximity
detectors, and the client wishes to install these, the specifications of ATEX Directive
2014/34/EU should be fulfilled.
6.2. MAINTENANCE
6.2.1. Maintenance of joints
6.2.2. Storage
6.2.3. Spare parts
On requesting replacement parts for a valve operating in a classified area, the order should
explicitly indicate that these are for a valve for operation in an ATEX area, as well as the
characteristics of this area.
In case this is not carried out, INOXPA will not be held responsible for the operation of the
valve with parts inappropriate for the classified area where it is installed.
6.3. CLEANING
Before commencing the disassembly and assembly work, the presence or the possible
formation of potentially explosive atmospheres should be considered.
Cleaning of the exterior
The exterior of the unit must be cleaned to avoid excessive accumulation
of combustible or explosive powder on the exterior surface of the unit.
Under no circumstances should it be allowed to accumulate to a thickness in excess
of 2 mm.

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ED. 11/2022 7. ASSEMBLY AND DISASSEMBLY
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7.Assembly and disassembly
The assembly and disassembly of the valves (with or without pneumatic operation)
should only be carried out by qualified personnel, with the need for the issuance of
safe work permits being considered in the presence of potentially explosive
atmospheres.
7.1. DISASSEMBLY/ASSEMBLY OF VALVE WITH TWO-POSITION HANDLEVER
7.2. DISASSEMBLY/ASSEMBLY OF VALVE WITH MULTIPOSITION HANDLEVER
Under no circumstances can the handlever be removed, since the butterfly would
remain electrically isolated.
7.3. DISASSEMBLY/ASSEMBLY OF VALVE WITH PNEUMATIC ACTUATOR
7.4. ASSEMBLY OF JOINT
7.5. ASSEMBLY OPTIONS OF THE ACTUATOR
In case that the actuator is supplied by INOXPA, it should comply with the
specifications of ATEX Directive 2014/34/EU and the supplier's specifications
should be observed at all times.

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ED. 11/2022 8. TECHNICAL SPECIFICATIONS
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8. Technical Specifications
Temperature range. See section 3.3.
8.1. TECHNICAL SPECIFICATIONS
PNEUMATIC ACTUATOR GENERAL DATA
To prevent a considerable temperature rise, under no circumstances can the pneumatic actuator
exceed 12 cycles per minute.
Under all circumstances, it is not recommended to exceed 2/3 cycles per minute to ensure a
reasonable useful life of the joints.