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UNI 9167 : 2009

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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INITIAL PRESSURE AND REDUCTION PLANTS FOR NATURAL GAS - DESIGN, CONSTRUCTION AND TESTING

Superseded date

12-07-2022

Published date

01-01-2009

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INTRODUZIONE
1 SCOPO E CAMPO DI APPLICAZIONE
2 RIFERIMENTI NORMATIVI
3 TERMINI E DEFINIZIONI
   3.1 Generalità
   3.2 Impianto
   3.3 Portate
   3.4 Pressioni
   3.5 Temperature
   3.6 Controllo della pressione
4 REALIZZAZIONE DELL'IMPIANTO
5 GENERALITA E GRUPPI COMPONENTI DI UN IMPIANTO REMI
   5.1 Impianto REMI con misura a pressione regolata
   5.2 Impianto REMI con misura a pressione da metanodotto
   5.3 Tipologia funzionale degli impianti REMI
6 CRITERI DI PROGETTAZIONE
   6.1 Criteri generali
   6.2 Attrezzature a pressione standard
   6.3 Portate
   6.4 Pressioni
   6.5 Temperature di progetto
   6.6 Ubicazione dell'impianto REMI
   6.7 Cabine e alloggiamenti - criteri comuni
   6.8 Condotti di sfiato e di scarico all'atmosfera
   6.9 Distanze e prescrizioni particolari
   6.10 Ulteriori criteri
   6.11 Materiali
   6.12 Tipi di valvole di intercettazione da utilizzare
   6.13 Parametri e formule di uso comune
   6.14 Dimensionamento e indicazioni funzionali principali
   6.15 Impianto di misura
   6.16 Tratto di uscita
   6.17 Odorizzazione
7 CRITERI DI ESECUZIONE
   7.1 Premessa
   7.2 Generalità
   7.3 Tubazioni, connessioni flangiate, pezzi speciali,
        scarichi
   7.4 Saldatura
   7.5 Installazione degli apparati
   7.6 Verniciatura e isolamento
   7.7 Impianti elettrici
   7.8 Sistema di protezione contro i fulmini e di messa a
        terra
   7.9 Protezione delle parti interrate dalle azioni
        corrosive
   7.10 Criteri per i collegamenti pneumatici degli strumenti
        di misura
   7.11 Criteri per l'installazione dei sistemi di misura
        computerizzati
8 CRITERI GENERALI DI SICUREZZA
   8.1 Generalità e segnaletica di sicurezza
   8.2 Delimitazione delle Zone soggette alla presenza di
        atmosfere potenzialmente esplosive
9 COLLAUDO CIRCUITO PRINCIPALE DEL GAS
10 DOCUMENTAZIONI
APPENDICE A (normativa) DIAGRAMMA PRESSIONE-ENTALPIA PER IL
            METANO PURO
APPENDICE B (informativa) IMPIANTO DI REGOLAZIONE - QUADRO
            RIEPILOGATIVO
APPENDICE C (normativa) IMPIANTI DI MISURA FISCALE
APPENDICE D (informativa) CARATTERISTICHE APPARECCHIATURE
APPENDICE E (informativa) IMPIANTI REMI CON MISURA A
            PRESSIONE DA METANODOTTO
APPENDICE F (normativa) RAPPORTO DI CONTROLLO DIMENSIONALE
            DEL DIAFRAMMA
APPENDICE G (normativa) RAPPORTO DI CONTROLLO DIMENSIONALE
            DEL TRONCO DI MISURA
APPENDICE H (normativa) CRITERI PER LA REALIZZAZIONE DEI
            COLLEGAMENTI PNEUMATICI
APPENDICE I (normativa) CRITERI PER L'INSTALLAZIONE DEI
            SISTEMI DI MISURA COMPUTERIZZATI
APPENDICE L (normativa) REQUISITI E PROCEDURE PER
            L'INSTALLAZIONE DI UN GASCROMATOGRAFO
APPENDICE M (normativa) DATA LOGGER VOLUMETRICO
APPENDICE N (normativa) DATA LOGGER VENTURIMETRICO
BIBLIOGRAFIA

La norma fornisce, in conformità alla legislazione vigente, i criteri principali di progettazione, costruzione e collaudo degli impianti di regolazione della pressione e misura del gas naturale, convenzionalmente denominati impianti REMI, allacciati alle reti di trasporto gas a valle del punto di consegna dal Trasportatore al Distributore/Cliente finale. La norma si applica alla realizzazione di impianti di ricezione e prima riduzione del gas naturale di nuova realizzazione e al rifacimento parziale o totale di quelli già esistenti. I requisiti della presente norma non si applicano alla progettazione e alla costruzione di installazioni ausiliarie, quali campionatori di gas, calorimetri e odorizzatori. Le suddette installazioni vengono trattate nelle relative norme nazionali o europee, se esistono, o in altre norme pertinenti. I requisiti della presente norma fanno riferimento ai dati fisici e chimici relativi ai gas combustibili della prima e della seconda famiglia, come definiti nella UNI EN 437.

DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

UNI 9571-1 : 2012 INITIAL PRESSURE REDUCTION PLANTS FOR NATURAL GAS - PART 1: SURVEILLANCE
UNI 10619-2 : 2014 GAS PRESSURE CONTROL SYSTEMS AND/OR GAS MEASUREMENT INSTALLATIONS FOR INLET MAX PRESSURE UP TO 12 BAR FOR INDUSTRIAL AND DOMESTIC USE - PART 2: DESIGN, CONSTRUCTION AND TESTING - EQUIPMENT FOR GAS CONTROL
UNI 10619-3 : 2014 GAS PRESSURE CONTROL SYSTEMS AND/OR GAS MEASUREMENT INSTALLATIONS FOR INLET MAX PRESSURE UP TO 12 BAR FOR INDUSTRIAL AND DOMESTIC USE - PART 3: DESIGN, CONSTRUCTION AND TESTING - GAS MEASUREMENT INSTALLATIONS
UNI 9463-4 : 2012 ODORISATION PLANTS AND ODORANT STORAGES FOR COMBUSTIBLE GASES EMPLOYED IN DOMESTIC OF SIMILAR USES - PART 4: ODORANT SUPPLY CONDITIONS
UNI 10619-1 : 2014 GAS PRESSURE CONTROL SYSTEMS AND/OR GAS MEASUREMENT INSTALLATIONS FOR INLET MAX PRESSURE UP TO 12 BAR FOR INDUSTRIAL AND DOMESTIC USE - PART 1: DESIGN, CONSTRUCTION AND TESTING - GENERAL
UNI 11438-1 : 2012 INITIAL PRESSURE REDUCTION PLANTS FOR NATURAL GAS - PART 1: SURVEILLANCE
UNI 9463-1 : 2012 ODORISATION PLANTS AND ODORANT STORAGES FOR COMBUSTIBLE GASES EMPLOYED IN DOMESTIC OF SIMILAR USES - PART 1: TERM AND DEFINITIONS

UNI EN 1514-1 : 1998 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES - NON-METALLIC FLAT GASKETS WITH OR WITHOUT INSERTS
ISO 14617-13:2004 Graphical symbols for diagrams Part 13: Devices for material processing
ISO 14617-14:2004 Graphical symbols for diagrams Part 14: Devices for transport and handling of material
UNI EN 751-1 : 1998 SEALING MATERIALS FOR METALLIC THREADED JOINTS IN CONTACT WITH 1ST, 2ND AND 3RD FAMILY GASES AND HOT WATER - ANAEROBIC JOINTING COMPOUNDS
UNI EN 12732 : 2014 GAS INFRASTRUCTURE - WELDING STEEL PIPEWORK - FUNCTIONAL REQUIREMENTS
UNI 7987 : 1979 CONTATORI DI GAS. TERMINI E DEFINIZIONI.
UNI 10390 : 1994 Natural gas final pressure reduction plants operating with maximum upstream pressure between 5 and 12 bar. Design, construction and testing.
UNI 9463-1 : 2012 ODORISATION PLANTS AND ODORANT STORAGES FOR COMBUSTIBLE GASES EMPLOYED IN DOMESTIC OF SIMILAR USES - PART 1: TERM AND DEFINITIONS
UNI EN 12560-4 : 2003 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - CORRUGATED, FLAT OR GROOVED METALLIC AND FILLED METALLIC GASKETS FOR USE WITH STEEL FLANGES
ISO 14617-8:2002 Graphical symbols for diagrams Part 8: Valves and dampers
UNI EN 12560-5 : 2003 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - METALLIC RING JOINT GASKETS FOR USE WITH STEEL FLANGES
UNI EN ISO 9001 : 2008 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS
ISO 14617-1:2005 Graphical symbols for diagrams Part 1: General information and indexes
UNI EN 10208-2 : 2009 STEEL PIPES FOR PIPELINES FOR COMBUSTIBLE FLUIDS - TECHNICAL DELIVERY CONDITIONS - PART 2: PIPES OF REQUIREMENT CLASS B
ISO 14617-7:2002 Graphical symbols for diagrams Part 7: Basic mechanical components
UNI EN 751-2 : 1998 SEALING MATERIALS FOR METALLIC THREADED JOINTS IN CONTACT WITH 1ST, 2ND AND 3RD FAMILY GASES AND HOT WATER - NON-HARDENING JOINTING COMPOUNDS
UNI EN 12007-3 : 2004 GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE UP TO AND INCLUDING 16 BAR - PART 3: SPECIFIC FUNCTIONAL REQUIREMENTS FOR STEEL
UNI CEN/TS 15173 : 2006 GAS SUPPLY SYSTEMS - FRAME OF REFERENCE REGARDING PIPELINE INTEGRITY MANAGEMENT SYSTEM (PIMS)
ISO 14617-15:2002 Graphical symbols for diagrams Part 15: Installation diagrams and network maps
UNI EN 12560-2 : 2013 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR CLASS DESIGNATED FLANGES - PART 2: SPIRAL WOUND GASKETS FOR USE WITH STEEL FLANGES
ISO 14617-6:2002 Graphical symbols for diagrams Part 6: Measurement and control functions
UNI EN 1514-6 : 2004 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES - PART 6: COVERED SERRATED METAL GASKETS FOR USE WITH STEEL FLANGES
UNI EN ISO 5167-1 : 2004 MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS
CEI EN 60079-10 : 2004 COSTRUZIONI ELETTRICHE PER ATMOSFERE ESPLOSIVE PER LA PRESENZA DI GAS - PARTE 10: CLASSIFICAZIONE DEI LUOGHI PERICOLOSI
UNI EN 12560-7 : 2005 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - PART 7: COVERED METAL JACKETED GASKETS FOR USE WITH STEEL FLANGES
UNI EN 12560-6 : 2007 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - PART 6: COVERED SERRATED METAL GASKETS FOR USE WITH STEEL FLANGES
UNI EN 437 : 2009 TEST GASES - TEST PRESSURES - APPLIANCE CATEGORIES
ISO 14617-11:2002 Graphical symbols for diagrams Part 11: Devices for heat transfer and heat engines
UNI EN 12480 : 2006 GAS METERS - ROTARY DISPLACEMENT GAS METERS
UNI EN 764-7 : 2004 PRESSURE EQUIPMENT - SAFETY SYSTEMS FOR UNFIRED PRESSURE EQUIPMENT
UNI EN 970 : 1997 NON-DESTRUCTIVE EXAMINATION OF FUSION WELDS - VISUAL EXAMINATION
UNI 5634 : 1997 IDENTIFICATION SYSTEMS FOR PIPELINES AND CANALIZATIONS CONVEYING FLUIDS
UNI EN ISO 12213-3 : 2010 NATURAL GAS - CALCULATION OF COMPRESSION FACTOR - PART 3: CALCULATION USING PHYSICAL PROPERTIES
UNI TS 11291-1 : 2013 GAS MEASUREMENT SYSTEMS - HOURLY BASED GAS METERING SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR REMOTE READING OR REMOTE MANAGEMENT SYSTEM
UNI EN 1776 : 2004 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
UNI EN 12186 : 2014 GAS INFRASTRUCTURE - GAS PRESSURE REGULATING STATIONS FOR TRANSMISSION AND DISTRIBUTION - FUNCTIONAL REQUIREMENTS
UNI EN 1514-2 : 2014 FLANGES AND THEIR JOINTS - GASKETS FOR PN-DESIGNATED FLANGES - SPIRAL WOUND GASKETS FOR USE WITH STEEL FLANGES
UNI EN 14382 : 2009 SAFETY DEVICES FOR GAS PRESSURE REGULATING STATIONS AND INSTALLATIONS - GAS SAFETY SHUT-OFF DEVICES FOR INLET PRESSURES UP TO 100 BAR
UNI EN 1514-4 : 1998 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES - CORRUGATED, FLAT OR GROOVED METALLIC AND FILLED METALLIC GASKETS FOR USE WITH STEEL FLANGES
UNI EN 751-3 : 1998 SEALING MATERIALS FOR METALLIC THREADED JOINTS IN CONTACT WITH 1ST, 2ND AND 3RD FAMILY GASES AND HOT WATER - UNSINTERED PTFE TAPES
ISO 14617-3:2002 Graphical symbols for diagrams Part 3: Connections and related devices
UNI EN 334 : 2009 GAS PRESSURE REGULATORS FOR INLET PRESSURES UP TO 100 BAR
UNI EN ISO 12213-2 : 2010 NATURAL GAS - CALCULATION OF COMPRESSION FACTOR - PART 2: CALCULATION USING MOLAR-COMPOSITION ANALYSIS
ISO 14617-12:2002 Graphical symbols for diagrams Part 12: Devices for separating, purification and mixing
UNI EN 10204 : 2005 METALLIC PRODUCTS - TYPES OF INSPECTION DOCUMENTS
UNI CEI ISO 1000 : 2004 SI UNITS AND RECOMMENDATIONS FOR THE USE OF THEIR MULTIPLES AND OF CERTAIN OTHER UNITS
ISO 10790:2015 Measurement of fluid flow in closed conduits Guidance to the selection, installation and use of Coriolis flowmeters (mass flow, density and volume flow measurements)
UNI 10619 : 1997 NATURAL GAS PRESSURE REDUCTION AND METERING PLANT WITH UPSTREAM MAXIMUM OPERATING PRESSURE OF 12 BAR FOR INDUSTRIAL USES AND SIMILAR AND FOR SERVICE LINES WITH DOWNSTREAM PRESSURE BETWEEN 0,04 AND 0,5 BAR - DESIGN, CONSTRUCTION, INSTALLATION AND TESTING
UNI EN ISO 12213-1 : 2010 NATURAL GAS - CALCULATION OF COMPRESSION FACTOR - PART 1: INTRODUCTION AND GUIDELINES
UNI EN 764-1 : 2005 PRESSURE EQUIPMENT - PART 1: VOCABULARY
UNI EN 10208-1 : 2009 STEEL PIPES FOR PIPELINES FOR COMBUSTIBLE FLUIDS - TECHNICAL DELIVERY CONDITIONS - PART 1: PIPES OF REQUIREMENT CLASS A
CEI EN 60751 : 2009 INDUSTRIAL PLATINUM RESISTANCE THERMOMETERS AND PLATINUM TEMPERATURE SENSORS
UNI/TS 11291-3 : 2014 GAS MEASUREMENT SYSTEMS - HOURLY BASED GAS METERING SYSTEMS - PART 3: CTR PROTOCOL
UNI EN 1514-3 : 1998 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES - NON-METALLIC PTFE ENVELOPE GASKETS
UNI EN 12405-1 : 2010 GAS METERS - CONVERSION DEVICES - PART 1: VOLUME CONVERSION
UNI EN 1514-8 : 2005 FLANGES AND THEIR JOINTS - DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES - PART 8: POLYMERIC O-RING GASKETS FOR GROOVED FLANGES
ISO 14617-9:2002 Graphical symbols for diagrams Part 9: Pumps, compressors and fans
UNI/TS 11291-2 : 2010 GAS MEASUREMENT SYSTEMS - HOURLY BASED GAS METERING SYSTEMS - PART 2: CTE PROTOCOL
ISO 14617-10:2002 Graphical symbols for diagrams Part 10: Fluid power converters
ISO 14617-5:2002 Graphical symbols for diagrams Part 5: Measurement and control devices
UNI EN ISO 5167-2 : 2004 MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 2: ORIFICE PLATES
UNI EN 12560-3 : 2003 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - NON-METALLIC PTFE ENVELOPE GASKETS
UNI EN 12560-1 : 2003 FLANGES AND THEIR JOINTS - GASKETS FOR CLASS-DESIGNATED FLANGES - NON-METALLIC FLAT GASKETS WITH OR WITHOUT INSERTS
UNI EN 1514-7 : 2005 FLANGES AND THEIR JOINTS - GASKETS FOR PN-DESIGNATED FLANGES - PART 7: COVERED METAL JACKETED GASKETS FOR USE WITH STEEL FLANGES
UNI 9571 : 1990 INITIAL PRESSURE REDUCTION PLANTS FOR NATURAL GAS - OPERATION AND MAINTENANCE
UNI EN 12327 : 2012 GAS INFRASTRUCTURE - PRESSURE TESTING, COMMISSIONING AND DECOMMISSIONING PROCEDURES - FUNCTIONAL REQUIREMENTS
UNI CEN/TS 15399 : 2008 GAS SUPPLY SYSTEMS - GUIDELINES FOR MANAGEMENT SYSTEMS FOR GAS DISTRIBUTION NETWORK
ISO 14617-2:2002 Graphical symbols for diagrams Part 2: Symbols having general application
ISO 14617-4:2002 Graphical symbols for diagrams Part 4: Actuators and related devices
UNI EN 12261 : 2006 GAS METERS - TURBINE GAS METERS
UNI EN 1594 : 2013 GAS INFRASTRUCTURE - PIPELINES FOR MAXIMUM OPERATING PRESSURE OVER 16 BAR - FUNCTIONAL REQUIREMENTS

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