INOXPA DCS Manual

INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS
ANNEX FOR CE ATEX REGISTERED EQUIPMENT UNDER DIRECTIVE 2014/34/UE:
TWIN SCREW PUMP
DCS
Original Manual
01.531.30.03EN
(A) 2023/05

01.531.30.04EN
(0) 2023/03
(1) Where X is a numeric character
EU Declaration of Conformity
We,
INOXPA, S.A.U.
Telers, 60
17820 –Banyoles (Girona)
Hereby declare under our sole responsibility that the machine
TWIN SCREW PUMP
Designation
DCS
Type
DCS 1B2, DCS 1B3, DCS 2B2, DCS 2B3, DCS 3B2, DCS 3B3, DCS 4B2, DCS
4B3
From serial number IXXXXXXXXX to IXXXXXXXXX (1)
Is in compliance with applicable provisions of the following directive:
Directive ATEX 2014/34/EU
Applicable harmonized standards:
EN ISO 80079-36:2016
EN ISO 80079-37:2016
This Declaration of Conformity covers equipment with the following ATEX marking:
The technical documentation referenced 18434012-787612 is on file with the notified body
LABORATOIRE CENTRAL DES INDUSTRIES ELECTRIQUES (LCIE), 33, Av. du Général
Leclerc BP 8, 92266 Fontenay-aux-Roses, France. Reference num. 0081.
The person authorized to compile the technical documentation is the signer of this document.
Banyoles, 2023
II 2G Ex h IIB T4…T1 Gb
II 2D Ex h IIIB T135 ºC…T450 oC Db
II 2G Ex h IIB T4…T1 Gb
II 2D Ex h IIIB T135 ºC…T450 oC Db
David Reyero Brunet
Technical Office Manager

INOXPA S.A.U. 01.531.30.03EN · (A) 2023/05
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1. Table of contents
1. Table of contents
2. General Information
2.1. Instructions....................................................................................................................................................5
2.2. Warnings .......................................................................................................................................................5
2.3. Symbols......................................................................................................................................................... 5
2.4. Warranty........................................................................................................................................................ 6
2.5. Pump nameplate ...........................................................................................................................................7
2.6. Type of pump................................................................................................................................................. 7
3. Design
3.1. Pump design..................................................................................................................................................9
3.2. Pump on base plate....................................................................................................................................... 9
3.3. Pump operations .........................................................................................................................................10
4. Safety
4.1. General information.....................................................................................................................................11
4.2. Mechanical risks..........................................................................................................................................12
4.3. Manual operation risks.................................................................................................................................12
4.4. Electricalrisks..............................................................................................................................................12
4.5. Thermal risks...............................................................................................................................................13
4.6. Chemical risks.............................................................................................................................................13
4.7. Dangerous areas.........................................................................................................................................13
5. Carriage, lifting and Storage
5.1. Carriage and packaging ..............................................................................................................................14
5.2. Lifting...........................................................................................................................................................14
5.3. Storage........................................................................................................................................................16
6. Installation and connection
6.1. General rules for installation........................................................................................................................17
6.2. Pump group installation...............................................................................................................................17
6.3. Pump group aligning....................................................................................................................................18
6.4. Piping connection........................................................................................................................................20
6.5. Electricalconnection....................................................................................................................................22
7. Pump Operation
7.1. Preliminary operation...................................................................................................................................23
7.2. Starting after a long storage........................................................................................................................23
7.3. Check before starting ..................................................................................................................................23
7.4. Pump filling..................................................................................................................................................24
7.5. Pump starting ..............................................................................................................................................24
7.6. Switch off.....................................................................................................................................................25
7.7. Working check.............................................................................................................................................25
7.8. CIP/SIP procedures.....................................................................................................................................25
7.9. COP (cleaning out of place) procedure .......................................................................................................26
8. Maintenance

INOXPA S.A.U. 01.531.30.03EN · (A) 2023/05
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8.1. Instruction for spare part ordering................................................................................................................28
8.2. Wearing parts..............................................................................................................................................28
8.3. General information on maintenance activities............................................................................................28
8.4. Maintenance table .......................................................................................................................................29
8.5. Mechanical seal check.................................................................................................................................30
8.6. Lubrication...................................................................................................................................................30
8.7. Malfunctions and possible causes...............................................................................................................31
9. Assembly and disassembly
9.1. General information.....................................................................................................................................33
9.2. Remove the pump from the group...............................................................................................................33
9.3. Disassembly wet side components and mechanicals seals ........................................................................34
9.4. Assembly screw CW, screw CCW and mechanical seals ...........................................................................38
9.5. Assembling the screws................................................................................................................................43
9.6. Tightening torque table................................................................................................................................44

General Information
INOXPA S.A.U. 01.531.30.03EN · (A) 2023/05
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2. General Information
2.1. INSTRUCTIONS
This manual contains information on the reception, installation, operation, assembly, disassembly and maintenance
of the DCS Ex pump to be used in potentially explosive atmospheres. This manual supplements the corresponding
sections of the instructions for the standard DCS pump, and should be read in conjunction with these instructions.
When a particular section of the DCS standard pump instructions is not mentioned in this manual, this section applies
to the extent reasonable.
2.2. WARNINGS
Any breach of the instructions could result in a risk for the operators, the environment and the machine, and could
result in the loss of the right to claim damages.
This non-compliance could entail the following risk (in addition to those already indicated in the manual):
• Generation of explosive atmospheres and risk of explosion.
2.3. SYMBOLS
HEALTH HAZARD
This sign advises the operator he has to pay attention to important info to avoid dangerous operations
which can be to the prejudice of his and other persons’ physical integrity. Follow carefully the
indications.
DEVICES INTEGRITY HAZARD
This sign advises the operator he has to pay attention to important info toavoid dangerous operations
which can be to the prejudice of his and other persons’ physical integrity and of surrounding devices.
Follow carefully the indications.
IMPORTANT TECHNICAL INFORMATION
This sign indicates technical information or conduct of particular importance should not be overlooked
ATEX REQUIREMENT
This sign shows information related only to the compliance with Directive ref. 2014/34/UE. The non-
observance of above indications may lead to serious risks for health and safety.
IMPORTANT!
Keep this manual and all accompanying documents in a PLACE accessible and known to all users
(operators and maintenance personnel). It is advisable to make a copy of this manual to be kept in
a safe place.
It is expressly forbidden to use the pump for staff lacking the required qualifications.
The pump must be used only for the intended conditions of use in the specific purchase for which INOXPA ordered
the execution, selected construction materials and performed the operation tests that make the pump snugly
against the claims.
For this reason, the pump cannot be used in situations other than those indicated in the listing.
In the case where the operating conditions specified on the order could be changed (for example, operating fluid
pumped, temperature or use), it is necessary to contact INOXPA to receive an eventually written consent.
INOXPA declines all responsibility for uses other than those specified in the contract.