manual valves eni_15801e05

Eni S.p.A. Exploration & Production Division

COMPANY SPECIFICATION

MANUAL VALVES

15801.PIP.MEC.SDS

REV. 5

October 2010

5 Addition of references to new datasheets IIS MECC Quaglia Oct. 10 4 General Revision MECC MECC Motti Mar 10 3 Addition of PED requirements IIS MECC Motti Sep 09 2 General Revision Tecnomare MECC Motti Dec 07 1 Issue in accordance with CEE rules STIN IMPI STIN Feb. 96 0 Issue - - - Set 93

REV. DESCRIPTION COMP.d CHECK.d APPR. d DATE


15801.PIP.MEC.SDS REV. 5 October 2010

Sheet 2 di 76

Il presente documento RISERVATO ed di propriet di ENI E&P. Esso non sar mostrato a Terzi n sar utilizzato per scopi diversi da quelli per i quali stato inviato. This document is CONFIDENTIAL and the sole property of ENI E&P. It shall neither be shown to Third Parties nor used for purposes other than those for which it has been sent.

FOREWARD

Rev. 0 60 Sheets September 1993 Issue Rev. 1 36 sheets, plus 3 sheets of Annex 1 and. 25 sheets of Annex 2.

February 1996 Issue in accordance with CEE rules This specification has been re-elaborated from a conceptual and graphical point of view as Company specification; its general revision has been performed in accordance with CEE rules which require functional requirements evidence and discriminating elements deletion.

Rev. 2 80 sheets, plus. 3 sheets of Annex 1, 25 sheets of Annex 2 and 5 sheets

of Annex 3 December 2007 General Revision Document structure entirely reviewed according to procedures 14044.VAR.GEN.RWP and 14045.VAR.GEN.RWP References to codes and standards updated New paragraph included: Manual reduction gear for valves Extension for valve operation Supports for valves extensions under walking level Connection plates to rod Lubricating stuffing box valves, special connection for lubricator Valves with lubricated seat, special connection for lubricator Lubricator for valves lubricated at shutter and stuffing box Chain wheel for elevated valve operation including

which include the specifications

15802.PIP.MEC.STD Manual Gear-Operators For Valves

15810.PIP.MEC.STD Chain Wheel Operator Handwheel Of Elevated Valves with O.D. 205 to 355 mm

15811.PIP.MEC.STD Chain Wheel Operator Handwheel Of Elevated Valves with O.D. 355 to 715 mm



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15812.PIP.MEC.STD Chain Wheel Operator Handwheel Of Elevated Valves with O.D. 715 To 1090 mm

15813.PIP.MEC.STD Extension for Globe Valve Operation Without Reduction Gear

15814.PIP.MEC.STD Extension for Gate Valve Operation Without Reduction Gear

15815.PIP.MEC.STD Valves with Lubricated Stuffing Box. Detail of Connection for Lubricator

15816.PIP.MEC.STD Valves with Lubricated Seat Detail of Connection for Lubricator

15817.PIP.MEC.STD Lubricator for Valves Lubricated to Disc and to Stuffing Box

15819.PIP.MEC.STD Floor Level

15820.PIP.MEC.STD Fastening Plate for Globe or Gate Valve Spindle - 150 to 2500 Lb #

15821.PIP.MEC.STD Extension for "Plug" "Butterfly" And "Ball" Valves Operation without Reduction Gear

15822.PIP.MEC.STD Extension for Valve Operation With Reduction Gear

15823.PIP.MEC.STD Handwheel Extension Support for Valves Below Floor Level

15824.PIP.MEC.STD Fastening Plate for Extended Screw-Thread of Plug, Butterfly Or Ball Valves 1502500 Lb

15825.PIP.MEC.STD Fastening Plate for Valve Reduction Gear, 150 To 2500 Lb Rating

Standard listed above have been superseded

Rev. 3 82 sheets, plus. 3 sheets of Annex 1, 25 sheets of Annex 2, 5 sheets of Annex 3 and 4 of Annex 4 September 2009 An APPENDIX relevant to requirements to be observed in European context according to Pressure Equipment Directive (97/23/CE) has been added.

Rev. 4 82 sheets, plus. 3 sheets of Annex 1, 25 sheets of Annex 2, 5 sheets of Annex 3 and 4 of Annex 4 March 2010



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General revision to include the whole set of Normalised Valve Data Sheets.

Rev. 5 76 sheets, plus. 4 sheets of Appendix 1, 25 sheets of Appendix 2, 5 sheets of Appendix 3, 4 of Appendix 4 and 402 of Appendix 5

October 2010

The references to new datasheets have been added, which have been adopted for new Piping Project Specifications in 625/825 alloys.



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INDEX

1 GENERAL 1.1 Scope 1.2 Normative references 1.2.1 European normative references 1.2.2 Normative references of ISO, IEC and national organizations 1.2.3 Normative references of other organizations 1.2.4 Legislation 1.2.5 Internal normative references 2 FUNCTIONAL NORMATIVE REQUIREMENT 2.1 Symbols and abbreviations 2.1.1 Identification criteria for manual valves 2.1.2 Materials coding abbreviations 2.2 Operative environment 2.3 Functional requirements 2.3.1 Manufacturing requirements 2.3.2 Dimensional requirements 2.3.3 Materials requirements 2.3.4 Operating device 2.3.5 Lubricators 2.3.6 Repairs 2.3.7 Spare parts 2.3.8 Painting and packing 2.3.9 Marking of valves 2.4 Boundaries, limits and exclusions 2.5 Ergonomics 2.6 Safety 2.7 Requirements for Quality Management and Quality Assurance 2.8 Additional requirements for review 2.8.1 Testing 2.8.2 Supplementary tests



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2.9 Documentation 2.9.1 Documentation for approval 2.9.2 Inspection documentation 2.9.3 Final documentation 3 SUPPLEMENTARY ELEMENTS 3.1 Appendices and Attachments 3.1.1 Appendices

Appendix 1 Identification criteria for valves Appendix 2 Tables of valves used in project

specifications Appendix 3 List of notes used in Datasheets, divided

by typology of Valves Appendix 4 PED additional requirements Appendix 5 Normalized Valves Data Sheets

3.1.2 Enclosures

MOD.MEC.VLI.001 Additional requirements for manual valves MOD.MEC.VLI.101 Inspection Data Sheet (IDS) MOD.MEC.VLI.201 Required documentation Data Sheet

(DDS)



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1. GENERAL 1.1 Scope

This specification aims at the definition of minimum design and manufacturing requirements for Standard or Project Company valves. Block valves installed on pipelines are not covered by this specification (see 03520.PIP.MEC.FUN). This specification applies to valves with the following ends: - threaded or socket welded (from ND " to 3"); - flanged or butt weld (from ND " and greater); - wafer type (butterfly, check and duo-check ND 2"). The Company Normalization restricts the use of threaded and socket welded ends up to ND 1"1/2. Though among the reference documents are listed some EN normative, referred to in some Data Sheets for valves not covered by other normative, this specification is applicable only in countries and to projects which do not apply the requirements of European Directive 97/23/CE (PED). In order to use this specification in Europe, it must be integrated with additional PED minimum requirements.



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1.2 Normative references 1.2.1 European normative references

97/23/CE Pressure Equipment Directive (P.E.D.) EN 593 Industrial Valves - Metallic Butterfly Valves EN ISO 10497 Testing of Valves. Fire Type Testing

Requirements EN 12266 Industrial Valves. Testing of Valves EN 12288 Industrial Valves. Copper Alloy Gate Valves EN 12328 Industrial Valves. Copper Alloy Check Valves EN 12627 Industrial Valves. Butt Welding Ends for Steel

Valves CEN/TS 13547 Industrial valves. Copper alloy ball valves EN 15761 Steel Gate, Globe and Check Valves DN 100

and Smaller for the Petroleum and Natural Gas Industries

EN ISO 17292 Metal Ball Valves for the Petroleum,

Petrochemical and Allied Industries 1.2.2 Normative references of ISO, IEC and national organization

BS 1868 Steel Check Valves for the Petroleum,

Petrochemical and Allied Industries BS 1873 Steel Globe and Globe Stop and Check Valves

for the Petroleum, Petrochemical and Allied Industries

BS 5154 Specification For Copper Alloy Globe, Globe

Stop And Check, Check And Gate Valves BS 5155 Cast Iron & Carbon Steel Butterfly Valves for

General Purpose BS 6364 Specification for Valves For Cryogenic Service



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ISO 5752 Metal Valves For Use In Flanged Pipe Systems - Face To Face And Centre To Face Dimensions

ISO 14313 (API Spec. 6D) Specification for Pipeline Valves, End Closure,

Connectors and Swivels ISO 10434 (API STD 600) Bolted Bonnet Steel Gate Valves, Flanged or

Butt welding Ends ISO 15761 (API STD 602) Steel Gate, Globe and Check Valves for Sizes

DN 100 and Smaller for the Petroleum and Natural Gas Industries

NACE MR0175/ISO 15156 Petroleum And Natural Gas Industries -

Materials For Use In H2S-Containing Environments In Oil And Gas Production

1.2.3 Normative references of other organizations

API Spec. 6FA Specification for Fire Test for Valves API STD 594 Wafer, Wafer-lug and Double Flanged Type API STD 598 Valve Inspection and Testing API STD 599 Metal Plug Valves, Flanged, Threaded and

welding Ends API STD 609 Butterfly Valves, Double Flanged, Lug & Wafer

Type ANSI/ASME B 16.1 Cast Iron Pipe Flanges & Flanged Fittings ANSI/ASME B 16.5 Steel Pipe Flanges & Flanged Fittings ANSI/ASME B 46.1 Surface Texture ASME B 1.1 Unified Inch Screw Threads (UN - and UNR

Thread Form) ASME B 1.5 Acme Screw Threads ASME B 1.20.1 Pipe Threads, General Purpose (Inch) (ex ANSI

B2.1)



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ASME B 16.10 Face to Face and End to End Dimensions of Ferrous Valves

ASME B 16.11 Forged Steel Fittings, Socket Welding and

Threaded ASME B 16.20 Metallic Gasket for Flanges Ring Joint, Spiral

Wound and Jacketed ASME B 16.24 Cast Copper Alloy Pipe, Flanges & Flanged

Fittings ASME B 16.25 Butt welding Ends ASME B 16.34 Valves, Flanged, Threaded & welding End ASME B 16.47 Large Diameter Steel Flanges (NPS 26 through

NPS 60) ASME B 31.3 Chemical Plant and Petroleum Refinery Piping ASME B 31.4 Pipeline Transportation Systems for Liquid

Hydrocarbons and other Liquids ASME B 31.8 Gas Transmission and Distribution Piping

Systems ASME Sect. VIII Div. 1 Boiler & Pressure Vessel code - Pressure

Vessel ASME Sect. IX Welding and Brazing Qualifications ASTM A275 Standard Test Method for Magnetic Particle

Examination of Steel Forging ASTM A488 Standard Practice for Steel castings, Welding,

Qualifications of Procedures and Personnel ASTM E94 Standard Guide for Radiographic Testing ASTM E165 Standard Practice for Liquid Penetrant

Inspection Method ASTM E186 Reference Radiographs for Heavy-Walled (2 to

4-1/2 in. (51 to 114 mm)) Steel Casting ASTM E280 Reference Radiographs for Heavy-Walled (4-

1/2 to 12 in. (114 to 305 mm)) Steel Casting



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ASTM E446 Standard Reference Radiographs for Steel Castings up to 2 in. (51 mm) Thickness

ASTM E709 Standard Practice for Magnetic Particle

Examination AWS TO 5.13 Solid surfacing welding rods and electrodes AWWA C 504-80 Rubber Seated Butterfly Valves MSS SP-6 Standard Finishes for Contact Faces of Pipe

Flanges and Connecting End of Valves and Fittings

MSS SP-44 Steel Pipe Line Flanges MSS SP-45 By-pass and Bleed Connection Standard MSS SP-53 Quality Standard for Steel Castings and Forging

for Valves and Flanged Fittings MSS SP-55 Quality Standard for Steel Castings for Valves,

Flanges and Fittings and Other Piping Components

Visual Method for Evaluation of Surface Irregularities

MSS SP-67 Butterfly Valves MSS SP-70 Gray Iron Gate Valves, Flanged & Threaded

Ends

1.2.4 Legislation

There is no legislation specifically applicable to the specification subject. In geographic areas other than Italy local legislation shall be considered.

1.2.5 Internal normative references

MOD.MEC.VLI.001 Additional requirements for manual valves MOD.MEC.VLI.101 Inspection Data Sheet (IDS) MOD.MEC.VLI.201 Required Documentation Data Sheet (DDS) 05883.VAR.GEN.SPC Packings for the dispatching of materials and

equipments



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11544.PIP.MME.SDS Cryogenic valve test procedure at -196C 14365.PIP.MEC.FUN Gaskets for flanged joint 15722.PIP.MEC.STD Stud bolts and nuts for flange joints 20000.VAR.PAI.FUN Protective coating and hot dip galvanising



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2 FUNCTIONAL NORMATIVE REQUIREMENT 2.1 Symbols and abbreviations 2.1.1 Identification criteria for manual valves Identification criteria for manual valves are reported in appendix 1. 2.1.2 Materials coding abbreviations In order to specify various materials for normalized valves, inside the

specification and Data Sheets the abbreviations reported in the following paragraph have been used.

2.1.2.1 Miscellaneous materials

MISCELLANEOUS MATERIALS

Abbreviation Designation

GRAPHITE carbon - graphite compounds ARMCO Steel- ARMCO type, harness HB 90 PTFE Polytetrafluorethilene KEL-F Polychlorotrifluoroethilene BUNA-N / NBR Butadiene/acrylonitrile copolymer EPDM ethylene propylene diene monomer Viton Fluoroelastomer PEEK Polyetheretherketone Nylon Polyamide Vespel Polyimide Delrin Polyoxymethylene HF Welding wire or electrode AWS A 5.13 E-Co-Cr-

A HB 350; thickness 1.6 mm NI Resist NI-Resist: ASTM A 439 D-2 (Ductile iron) For gaskets symbols refer to document 14365.PIP.MEC.FUN



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2.1.2.2 Packing materials

MATERIALS FOR PACKINGS

Abbreviation Designation

GRA carbon - graphite compounds PTF2 PTFE + PTFE solution AFP2 Non-asbestos fiber + PTFE AFP6 Non-asbestos fiber + graphite AFR2 Graphite + PTFE dispersion AFR6 Graphite + Inconel ARA6 Aramid fiber VET2 Glass fiber FPT Filled PTFE HYD Hydrin NIT Nitrile VIT Viton VIT2 Viton GF VIT3 Viton GLT NBR Hydrogenated NBR BUN BUNA-N EPD EPDM For packing, alternative materials deemed equivalent or better according to Manufacturers standard can be submitted to Company for approval; the proposal shall be justified and documented.



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2.2 Operative environment

Data Sheets for Normalized valves consider the following factors: - maintainability (type Two / three pieces or top entry); - fluids aggressiveness (standard, corrosive, NACE); - design temperatures and design pressure; - fire resistance; - constructive features (ends, materials).

2.3 Functional requirements 2.3.1 Manufacturing requirements

Valves manufacturing shall be in accordance with the attached Data Sheets for Normalized valves and with the requirements of the codes indicated in 1.2. When the code does not cover a class rating, design shall comply with the manufacturers standard and the mentioned code, as far as applicable. In addition to what is requested in the Data Sheets for Normalized valves and in the above-mentioned codes, the following prescriptions shall be applied: - fanged ends shall be integral with the body; full penetration butt-

welded flanges shall be allowed only if specified in the relevant Data Sheets for Normalized valves. The welding shall be carried out in accordance with procedures foreseen by each material code;

- by-pass valves shall be globe valve type (external screw with yoke

and rising stem) and designated with the symbols of this specification;

- valve yokes ND 2" shall be integral with the bonnet; - the surface finishing of stuffing box shall have a maximum roughness

of 63 Ra in accordance with ANSI/ASME codes B46.1, (Ra = arithmetic average of the deviation absolute values measured from the centre line of the roughness profile);



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- stem yoke nut for valves with an external screw and a not rising handwheel for ND 6, pressure rating 600#, 900# and 1500# and ND 3, pressure rating 2500# shall be fitted with thrust bearing;

- gate and globe valves ND 2, and a pressure rating 300#, shall

be provided with a lantern ring whose material shall be the same as one of the stem; inside the stuffing box in correspondence of the lantern ring a threaded hole ND NPT shall be provided along with a plug lubricator or bleed for a lubricating installation;

- unless otherwise specified in each Data Sheet for Normalized valves,

the stem of gate and globe valves shall be manufactured with a shoulder for the back-seat;

- gate, globe and check valves provided with threaded or expanded

seats, are acceptable with integral seats when specified with the same body material;

- all ball valves shall be FIRE SAFE manufactured and certificated in

accordance with API Spec. 6FA and EN 12266 codes as specified in the Data Sheets for Normalized valves and moreover provided with an ANTISTATIC DEVICE in accordance with EN 17292 code. In particular they shall have:

a) two additional metal seals with the ball capable of operation in

the event of plastic seats material being destroyed; b) a stainless steel internal device for assuring the electrical

continuity between the BALL-STEM-BODY with a resistance 10 verified on a prototype and in specified test conditions;

- the specified finishing for the housing surface of body-cover gaskets

shall be:

a) for FF coupling: flat face type with roughness 500 Ra in accordance with ANSI/ASME code B46.1;

b) for MF coupling: male-female type SMOOTH finished with

roughness 125 Ra in accordance with ANSI/ASME code B46.1; c) for RJ coupling: ring joint type, in accordance with ASME code

B16.20; - the body - bonnet gasket seat of valves ND 2 ND shall be

designed in such a way to completely surround the gasket (Confined gasket type);



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- valves shall be supplied complete with all devices required to guarantee their operability in accordance with paragraph 2.3.4.

- unless otherwise required in the documents issued for a specific

project, for valves designed to work at a minimum project temperature down to -46C, Extended Stem execution is not requested;

- bodies of all valves with ND 2, excepting butterfly and diaphragm

valves, shall be fitted with bosses for purge connection, by-passes with dimensions and locations in accordance with the manufacturing codes of the valves;

- by-pass, if requested in the Data Sheet issued for the specific

project, shall have dimensions in accordance with MSS code SP 45 Series A;

- the body-bonnet jointing as specified in the relevant Data Sheets for

Normalized valves, excepting for plug or ball valve and valves with class rating 800#, shall be of RJ type when:

a) the end connection to the line of Class 300# is RJ; b) the end connection to the line of Class 600# is BW;

- valves with threaded or socket welded connections, of rated bores

2 and of greater sizes than indicated in the relevant Data Sheets for Normalized valves, shall be rounded or bevelled to 45;

- body-bonnet threaded joint for valves WELDED BONNET type, with

ND 2 shall have a weld-seal that can be easily removed by grinding so that the valve may be re-used;

- globe and check valves shall have raised on the body (for casting or

forging) an arrow indicating flow direction; - when body seats and backseat are to be welded, no welded-

threaded joints are accepted;



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- Packing included in this specification are basically made of lines or strands of organic, mineral or synthetic nature weaved by square-section diagonal intertwining. The characteristics of the material used for the basic weaving or tapes shall be guaranteed by an analysis certificate issued by the manufacturer. In presence of high pressure and high temperature fluids, a metallic reinforcement line can be added to the basic weaving. During manufacture, such line shall be entirely wrapped by the fibres that make up the basic weaving. During manufacture packing are soaked line by line with additives and/or lubricants in order to give the same special characteristics such as low friction factor, good heat conductibility, compactness. Packing can be provided by coils of market length or by pre-compressed rings. Pure graphite tapes are also included used as such or as pre-compressed rings. Since a higher number of lines result in better mechanical characteristics, not only the weaving type and spindles number but also the minimum number of lines that are necessary for their manufacturing shall be indicated. Soaking with lubricating, protective, etc. substances shall be implemented line by line.

2.3.2 Dimensional requirements

The nominal diameters indicated in the Data Sheets for Normalized valves are corresponding to those designated as Nominal Pipe Size (inches) in the codes ANSI/ASME B 16.5, ASME B16.47 and MSS SP 44. The flanged ends of valves shall be designed as follows: - Cu-Ni valves: EEMUA 145; - Valves of other materials: ANSI/ASME B16.5 for ND up to 24

included; ASME B16.47 Series A for ND of 26 to

60, MSS SP 44 for ND of 22; Wafer-type valves shall be designed in such a way to allow their assembly between flanges ANSI/ASME B16.5 up to 24, ASME B16.47 Series A from 26 to 60 and MSS SP 44 for ND of 22. The types of facing specified for flanged valves are: - FF (Flat Face) ANSI/ASME B16.5 for valves class rating

150#;



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- RF (Raised Face) ANSI/ASME B16.5 for valves class rating 150#, 300# and 600#;

- RJ (Ring Joint) ANSI/ASME B16.5 for va lves Class rating

600#, 800#, 900#, 1500# and 2500#. The butt-welded (BW) ends of valves for which, in the Data Sheet issued for the specific project, the internal diameter or the thickness of the pipe shall be specified to which the ends will be welded, shall be in accordance with ASME code B16.25. When the valves ends thickness is greater than 50% of the pipe wall thickness, the Contractor shall supply a transition piece that shall be submitted to Company for approval. The socket welded (SW) and threaded (THDD) valve ends shall comply with ASME code B16.11. The thread of the threaded joints (NPT) shall comply with ASME code B1.20.1. End to end or face to face dimensions different from those reported on the reference normative may be accepted only for valves with threaded or socket welded joints, for wafer and pressure seal valves. The Contractor is anyway obliged to indicate in the annex of the offer any possible dimensional deviations from the requested ones.

2.3.3 Material requirements

This specification and the Data Sheets for Normalized valves report the list of the materials requested for the manufacturing of various components. Alternative equivalent or superior materials may be submitted for Company approval; the proposal shall be justified and documented, and anyway shall satisfy the chemical analysis and mechanical properties requirements stated by the above-mentioned codes. Valves required in materials other than carbon steel may be supplied, with Companys approval, in cladded carbon steel, provided that they are suitable for being used in the conditions of the specific project. Disc and seats of gate, globe and check valves, shall be manufactured either integrally with the requested material or with the same material as the body and with sealing surfaces consisting of a welded overlay of the requested material. The yoke, if separated from the bonnet, shall be manufactured using the same material as the bonnet.



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When seats and backseat are requested with sealing surfaces of austenitic steel or hardened by means of a weld overlay of Cobalt alloy E or Cr-A AWS 5.13 (HF) (wire or electrode), the requested material may be deposited directly on the separated rings or on the body/bonnet. Direct deposits of 13 Cr material on the body or bonnet are not allowed. The sealing surfaces of disc may be either integral, manufactured by means of a welded overlay or welded rings, or hardened by weld overlay of Cobalt alloy "E-Co-Cr-A AWS 5.13 (HF) (wire or electrode). The thickness of the overlay material shall be minimum 1.6 mm after machining. For valves ISO 15761 (API STD 602) the thickness shall be minimum 0.8 mm. Cobalt alloys E-Co-Cr-A AWS 5.13 (HF) used for weld overlay shall be deposited in accordance with paragraphs QW 216 and 281 of ASME code Sect. IX. All other welded overlays shall be carried out in accordance with ASME code Sect. IX. Unless specified in the Data Sheets MOD.MEC.VLI.001, for butt welded valves (BW) manufactured according to ISO 14313 (API Spec. 6D), the following carbon equivalent limits shall be not exceeded:

15CNi

5VMoCr

6MnCCE ++++++=

CE 0.46

2.3.3.1 Soft material sealing

The manufacturing of sealing material (soft seal) shall be performed by placing additional sealing rings in the plug or in the seats in such a way as to guarantee a perfect tightness. Valves with soft sealing material shall maintain the tight also when rings or soft material rings are worn or damaged. The additional metal to metal sealing shall not require the increasing of the torque value on the handwheel as compared to a similar valve with metallic sealing. The sealing ring shall lean from the metal surface as follows: a) teflon o-ring: 0.25 mm max. b) normal teflon ring: 0.08 to 0.20 mm c) ring of other materials: 0.08 to 0.20 mm (unless otherwise

specified).



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The width of the sealing ring shall be maintained in the range from 2.5 mm to 6.5 mm. The soft sealing material shall be capable of withstanding a minimum of 2000 opening and closing cycles at valve operating pressure without suffering damages or permanent deformations on the soft ring due to friction occurring between the two seals in contact with each other.

2.3.4 Operating devices

Valves shall be supplied with an operating device, wrench or manual gear, in accordance with paragraph 2.3.4.1. Unless otherwise indicated in the Data Sheet MOD.MEC.VLI.001 issued for the specific project, all operating devices shall be designed in such a way that the manual torque does not exceed 220 N (22 kg) when opening and closing the valve at the maximum differential pressure. Butterfly, ball and plug valves, specified without gear operator, shall be supplied with an operating wrench. Its dimension shall not exceed 450 mm. The operating wrench of ball valves shall be of the replaceable type, with OPEN CLOSED stops, and designed in such a way as to prevent erroneous positioning and shall be manufactured using carbon steel protected against rusting. Handwheels shall be of the crown type, with notches or protrusions for manual operations, shall have an arrow to indicate the position and marked OPENED - CLOSED (valves ND 2 excluded) and they shall be manufactured in malleable iron or carbon steel and protected against rusting. Their diameter shall not exceed 750 mm. Gate valves with a non-rising stem shall be supplied with a T-socket-wrench and shall be equipped with a protective cap. All valves, excepting check valves, shall be equipped with a position indicator (OPEN - CLOSED) showing intermediate for the throttling valves.



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2.3.4.1 Manual gear operators for manual valves The ranges for manual gear operators are as follows:

Valves Type Rating Gear from ND Gate 150#

300# 600# 900#

1500# 2500#

ND 16" ND 12" ND 12" ND 8" ND 6" ND 6"

Globe 900# 1500# 2500#

ND 6" ND 4" ND 4"

Plug 150# 300# 600# 900#

1500#

ND 8" ND 8" ND 8" ND 8" ND 6"

Ball Full bore 150#

300# 600# 900#

1500# 2500#

ND 6" ND 6" ND 4" ND 3" ND 3" ND 3"

Reduced bore 150#

300# 600# 900#

1500# 2500#

ND 8" ND 8" ND 6" ND 4" ND 4"

All the ND Butterfly 150#

300# 600#

(metal to metal seal)

ND 8" All sizes All sizes

All valves shown in the table above shall be equipped with manual gear operator, with one of the control types shown in fig. 1.



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During ordering, the control type required (A - B - etc., see fig. 1) shall be shown.

fig. 1 operator types

If the operator type is not shown, the Manufacturer shall supply Type A The gear operator shall have the following characteristics : a) Handwheel to be capable to rotate by 90 b) Thoroughly tight gear box and protected stem c) Position indicator OPEN - CLOSED d) The force applied at periphery of operator handwheel shall not exceed

150 N (15 kg) when the operation is started, and 220 N (22 kg) at start-up.



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e) Cast iron gear operator is acceptable only if it is mounted on cast iron valves.

Manufacturer shall attach to his tender the mechanical characteristics and the assembly drawing with description of parts and materials used.

2.3.4.2 Extension for valves

Extensions are forecast for the following valves: - Globe valves - Gate valves - Plug, butterfly and ball valves - Valves with reduction gear Designation Criteria necessary for the complete identification of the materials indicated below for purchase, storage and usage are the following: a) type of valve b) type of extension c) nominal diameter and rating d) lengths L and L1 (see fig. 2 e 3) e) type of steel f) reference to present document Marking Each piece shall be provided with a mark reporting the following criteria: - type of extension-valve :

o PD for globe valves without reduction gear o PS for gate valves without reduction gear o PV for plug, butterfly or ball valves without reduction gear o PRM for valves with reduction gear

- type of extension (see tables) - DN - rating - lengths L and L1 - type of steel - pertinent internal normalization document Example (see note 2): PD / V / 4 - 300 / 1500 - 500 / C / 15801



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fig. 2 Extension assembling layout - Globe valves



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fig. 3 Extension - Globe valves



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fig. 4 Details X and Y



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VARIABLE DIMENSIONS DEPENDING ON GLOBE VALVE ND AND RATING

HANDWHEEL L L1 M (**) 150 600 900 2500 TYPE OF EXTENSION DEFINITION N (equally spaced slotted holes) N1 N1 V

ALV

E N

D

150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 2500 150 2500

P Q R Arms

P Q R Arms

1 - - - V - - - 4 180 3002 V -

V 4 -

4 200 21 15 220 4

26 17400

5

3 V V Z Z

4 4 8 8

250 5504 Z 8 300

33 22600

7

6

V

4

350

26 17 400 5 8 460 10 Z 8

450 510

12 33 22 610 7 14

Z

Z Valves are fitted with reduction gear 8

8 Valves are fitted with reduction gear

SEE NOTE(3)

500 680

Valves are fitted with reduction gear

DN1 DN2 DN3 S1 S2 S3 A A1 A2 B D D1 E F G H T (*) TYPE OF Extension

C thread

+0,1+0,2

V 4" 2" 1" 6.02 3.91 3.38 130 80 37 33 M32 102 52.0 45 112 31 120 Z 6" 3" 1 1/2" 7.11 5.49 3.68 170 105 42 48 M45 154 78 65 152 46 160

110

NOTES 1) ND = Nominal Diameter (inches). 2) All components of the EXTENSION group must bear the marking in

the positions indicated. 3) The lengths L and L1 will be defined by the Designer each time

and will be indicated in the order. *) The EXTENSION support guide will be placed in workshop and will

be used as OPEN and CLOSE valve position index. **) Minimum permitted dimensions in accordance with the various ND to

assure that the exterior box completes the RUN resulting for the travel of the spindle when the valve is fully open without hitting the guide.



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fig. 5 Extension assembling layout Gate valve



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fig. 6 Extension Gate Valve



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VARIABLE DIMENSIONS DEPENDING ON GATE VALVE ND AND RATING


ALV

E N

D

150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 2500 150 2500

P Q R Arms

P Q R Arms

1 1/2 - - - V - - - 4 250 180 300

2 V - V

4 - 4

21 15 220 4 26 17

4005

3 V V 4 4 8 8 350

250 5504

Z Z

400 300 33 22

6007

6

V Z

4

8

26 17 400 5 8 8

500 460

10 Z

Z

8

600 510 12 33 22 610 7 14

Z

Valves are fitted with

8

Valves are fitted with 700

680


16 reduction gear reduction gear

SEE NOTE(3)

- - - - - 18 - - - - - -


C thread

+0,1+0,2

V 4" 2" 1" 6.02 3.91 3.38 130 80 37 33 M32 102 52.0 48 112 31 120 Z 6" 3" 1 1/2" 7.11 5.49 3.68 170 105 42 48 M45 154 78 74 152 46 160

~140


the positions indicated. 3) The lengths L, L1 and L2 will be defined by the Designer each

time and will be indicated in the order. *) The extension support rail shall be positioned in yard. **) Minimum dimensions accepted for the different DN in order to

restrain the TRAVEL of the guide globe resulting from the run of the rod with the valve in the entirely open position.



Sheet 33 di 76


fig. 8 Extension assembling layout Plug, butterfly and ball valves



Sheet 34 di 76


fig. 9 Extension Plug, butterfly and ball valves



Sheet 35 di 76


Fig. 10 Details X, Y and T



Sheet 36 di 76


VARIABLE DIMENSIONS DEPENDING ON VALVE ND AND RATING

HANDWHEEL L L1 M (*) 150 600 900 2500 TYPE OF EXTENSION DEFINITION

N1 N1 VALV

E N

D

150 300 600 900 1500 2500 150 2500 150 2500

P Q R Arms

P Q R Arms

1 V - 1 1/2 -

21 15 180 4 26 17

300 5

2 - 300 400 3 -

26 17460

5 550

4

Z

- 510 33 22

600 7

6 Z -

Vederenota (3) 400

33 22610

7

8 - 10

Valves are fitted with reduction gear -


DN1 DN2 S1 S2 A A1 A2 B D1 E G TYPE OF Extension

C thread

V 2" 1" 3.91 3.38 130 80 37 33 M32 52.0 45 31 Z 3" 1 1/2" 5.49 3.68 170 105 42 48 M45 78 65 46


the positions indicated. 3) The lengths L and L1 will be defined by the Designer each time

and will be indicated in the order. 4) In yard two longitudinal arrows shall be marked (by painting) on the

extension at the level of the reference indent in the rail support plate, one with the valve in CLOSED position and the other with the valve in OPEN position. The two rotation directions shall be indicated by a double arrow.

5) The extension can be installed both on VERTICAL and HORIZONTAL valves.

*) Minimum dimensions accepted for the different DN



Sheet 37 di 76


fig. 11 Extension assembling layout Valves with reduction gear



Sheet 38 di 76


fig. 12 Extension Valves with reduction gear



Sheet 39 di 76





Sheet 40 di 76


VARIABLE DIMENSIONS DEPENDING ON GATE VALVE ND AND RATING - WITH OPERATING GEAR


ALV

E N

D

150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 2500 150 2500

P Q R Arms

P Q R Arms

4 - - - - - - - - - - - - 3006 - - 8

300 400

10

V 4 26 17

460

5

12 400

14

V 4 26 17

460

5

550

1618

V 4 350

510 6002022

V 4

610 650> 24 Z

Z Z

Z

8 8

8 8

See note (3)

450 33 22

680 7

33 22

750

7


C thread

+0,1+0,2

V 4" 2" 1" 6.02 3.91 3.38 130 80 37 33 M32 102 52.0 45 112 31 120 160 ~ Z 6" 3" 1 " 7.11 5.49 3.68 170 105 42 48 M45 154 78 65 152 46 160 210 ~

NOTES 1) ND = Nominal Diameter (inches). 2) Each component of the EXTENSION whole shall be marked by the

common mark in the indicated positions. 3) The lengths L and L1 will be defined by the Designer each time

and will be indicated in the order. 4) The extension does not have the reference index for CLOSED and

OPEN valve. 5) In case of horizontally controlled reducers the valve shall be rotated

by 90 in order to vertically assemble the extension. In special cases the extension can be horizontally assembled.

*) The EXTENSION support rail shall be positioned in yard. **) Minimum dimensions accepted in the different DN.



Sheet 41 di 76


2.3.4.3 Supports for valves extensions under walking level.

Definition The criteria necessary for the complete identification of the materials listed below for supply, storage and use are as follows: a) support type b) valve type c) type of extension d) type of steel e) reference to this document. Marking Each piece shall be provided with a mark reporting the following criteria: - type of valve :

o S / PD for globe valves without reduction gear o S / PS for gate valves without reduction gear o S / PV for plug, butterfly or ball valves without reduction gear o S / PRM for valves with reduction gear

- type of extension - steel - pertinent internal normalization document Example: S / PD / V / C / 15801



Sheet 42 di 76


fig. 14 Extension Assembling Layout - Globe and gate valves



Sheet 43 di 76


fig. 15

TYPE OF Extension

DNP S A B C D E F G L1 P Q L T

V 8" 8.18 150 350 290 155 220 120 160 162 170 See Z 10" 9.27 177 410 340 185 270 150 190 174 230 Note (2)

DIMENSION: As reported in table. MATERIAL: carbon steel. NOTES 1) Each piece shall be provided with its mark 2) "Q" dimension shall be defined case by case by the designer NOTE FOR ORDER - The support shall be ordered together with the valve operation

extension type it refers to and provided with 4 anchorage bolts 5/8" whose lengths shall be defined by the designer and indicated in the purchase order.



Sheet 44 di 76


fig. 16 Extension Assembling Layout - Plug, butterfly and ball valves



Sheet 45 di 76


fig. 17



Sheet 46 di 76


TYPE OF Extension DN S A B C L1 P Q L T

V 4" 6.02 117 230 170 129 110For valves

Z V

6" 7.11 144 270 210 156 160For reduction

gear Z 8" 8.18 170 300 240 167 210

SEE NOTE(4)

DIMENSIONS: As indicated in table. MATERIAL: carbon steel. NOTES 1) ND = Nominal Diameter (inches). 2) Each piece shall be provided with its mark 3) Specify if Plug, butterfly or ball 4) Q" dimension shall be defined case by case by the designer NOTE FOR ORDER

The support shall be ordered together with the valve operation extension type it refers to and provided with 4 anchor bolts 5/8" whose lengths shall be defined by the Designer and indicated in the purchase order



Sheet 47 di 76


2.3.4.4 Connection plates to rod

Definition The criteria necessary for the complete identification of the materials listed below for supply, storage and use are as follows: a) plate type b) nominal diameter (inches) c) rating d) type of valve e) valve manufacturer f) type of steel g) reference to this document Marking Each piece shall be provided with a mark reporting the following criteria: - Plate type:

o PA for valves without reduction gear o PARM for valves with reduction gear

- manufacturer - DN - rating - steel - pertinent internal normalization document Example : PA / VR ... (2) ... / 3 - 150 / C / 15801



Sheet 48 di 76


fig. 18 Connection plates to rod

A B

- 0,1 - 0,2

N holes and screws

Valve-spindle coupling

DN

P V

alve

150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 2500 1 1/2 - - - 102 - - - 4

2 - 102

- 4

3 102

102 4

4 4

102 154

154 4 8

8

6

102 154

4 8

8 Valves are Valves are

10 fitted with fitted with 12 a reduction a reduction

14

154 154

154

gear

8 8

8

gear

Dimensions must be defined by the Manufacturer

of the valve to which the plate

is coupled..

DIMENSIONS: As indicated in table. THREAD: On the female ASME / ANSI B 1.1 UNC 2B. On the screw ASME / ANSI B 1.1 UNC 2A. TOLLERANCES: On the plate, as indicated in table and according to

Manufacturers. On the threading, ASME / ANSI B 1.1. MATERIAL: Connection plate: Carbon steel. Screw: ASTM A 307 Gr. B or equivalent. NOTES FOR THE MANUFACTURER : 1) Each piece shall be provided with its mark. 2) The name of the manufacturing company of the valve whose

connection plate shall be coupled shall be appropriately highlighted. 3) Each connection plate to valve rod shall be provided complete with

pertinent screws according to document 15722.PIP.MEC.FUN (but without the nut), DN = 1/2" and length = 30 mm screwed into seat.



Sheet 49 di 76


4) On the packing containing the connection plates CONNECTION PLATE TO GLOBE/GATE ... (2) ... VALVE OPERATION EXTENSION shall be painted with highlighted characters.

N.B. - Cancel "GLOBE" or "GATE" according to the type of plate the packing contains: the two plate types can also be stored in one package provided they are appropriately separated; in this case no cancelling is implemented.



Sheet 50 di 76


fig. 19 - Connection plates to rod

Coupling to valve

A external screw-thread

EXT. SCREW-THREAD VALVE

ND 150 300 600 900 1500 2500

B C 0,8

Diameter Height M 1 70 - 52.0 56.5 L H

1 1/2 - 2

90 - Dimensions must be

3 - 77.5 81.5 defined by the Manufacturer of 4 100

100 - the valve to which the plate is coupled.

6 8 Valves are fitted with - - Valves are fitted with

10 a reduction gear - - a reduction gear.

DIMENSIONS: As indicated in table. THREADING: On the female ASME / ANSI B 1.1 UNC 2B. On the screw ASME / ANSI B 1.1 UNC 2A. TOLLERANCES: On the plate, as indicated in table and according to

Manufacturers. On the threading, ASME / ANSI B 1.1. MATERIAL: Connection plate: Carbon steel. Screw: ASTM A 307 Gr. B or equivalent. NOTES FOR THE MANUFACTURER: 1) Each piece shall be provided with its mark. 2) The name of the manufacturing company of the valve which the

connection plate shall be coupled to shall be appropriately highlighted.



Sheet 51 di 76


3) Each connection plate to valve male shall be provided complete with the pertinent screw according to document 15722.PIP.MEC.FUN (but without the nut), DN = 1/2" and length = 30 mm screwed into seat.

4) On the package of connection plates CONNECTION PLATE TO PLUG/BUTTERFLY/BALL VALVE OPERATION EXTENSION shall be painted in highlighted characters

N.B. Cancel PLUG, BUTTERFLY and BALL leaving the name of the plate type the package contains: the three plate types can also be stored in one package provided that they are appropriately separated; in this case no cancelling shall be carried out.



Sheet 52 di 76


fig. 20 Connection plates to rod

A B

- 0,1 -

0,2 No. of holes and screws

Coupling to reduction gear

DN

P v

alve

w

ith

redu

ctio

n ge

ar

150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 2500 4 - - - - - - 6 - - 8

10

102 4

12 14

102 4

16 18

102 4

20 22

102 4

> 24 154 154

154 154

8 8

8 8

Dimensions must be defined by the

Manufacturer of the valve to which the

plate is coupled..

DIMENSIONS: As indicated in table. THREADING: On the female ASME / ANSI B 1.1 UNC 2B. On the screw ASME / ANSI B 1.1 UNC 2A. TOLLERANCES: On the plate, as indicated in table and according to

Manufacturers. On the threading, ASME / ANSI B 1.1. MATERIAL: Connection plate: Carbon steel. Screw: ASTM A 307 Gr. B or equivalent. NOTES FOR THE MANUFACTURER : 1) Each piece shall be provided with its mark. 2) The name of the manufacturing company of the reducer which the

connection plate shall be coupled with shall be appropriately highlighted.

3) Each plate to be connected to reducer shall be provided complete with pertinent screws according to document 15722.PIP.MEC.FUN (but without the nut), DN = 1/2" and length = 30 mm screwed into seat.



Sheet 53 di 76


4) On the package of the connection plates CONNECTION PLATE TO REDUCER ... (2) ... OPERATION EXTENSION shall be painted in highlighted characters

2.3.4.5 Chain wheel for overelevated valve operation

Definition The criteria necessary for the complete identification of the materials listed below for supply, storage and use are as follows: a) wheel type b) primitive diameter c) reference to this document Marking All pieces shall be provided with a mark reporting the following criteria: - Dp - pertinent internal normalization document Example for the whole and each component (see note 2): CW / 290 / 15801



Sheet 54 di 76


fig. 21 Handwheels from 205 to 355 mm



Sheet 55 di 76


fig. 22 details A, B and C



Sheet 56 di 76


POS PIECES MATERIAL Q.ty

1 CALIBRATED CHAIN 8 UNI 4417 ( SEE NOTE 5) Carbon steel 1 2 CHAIN RAIL Melted steel ( SEE NOTE 3) 1 3 THREADED RING (for chain rail fixing) A 283 Gr. C 1 4 SCREW 5/16 x 15 according to document 15722.PIP.MEC.FUN According to document 15722.PIP.MEC.FUN 1 5 WASHER A 11 UNI 1751 A 283 Gr. D 6 6 SCREW WITH NUT 3/8 x 25 according to document 15722.PIP.MEC.FUN According to document 15722.PIP.MEC.FUN 6 7 CHAIN WHEEL Melted steel ( SEE NOTE 3) 1 8 BOLT A "U" 7 with threading 1/4" UNC - 2A According to document 15722.PIP.MEC.STD 3 9 "L" PLATE FOR FIXING TO HANDWHEEL Carbon steel 3 10 NUT 1/4" UNC - 2B According to document 15722.PIP.MEC.STD 6

11 WASHER 11 x 21 UNI 6593 - 69 A 283 Gr. C 6

NOTES 1) All dimensions are in mm, unless otherwise specified. 2) Each component of the whole shall be provided with common mark in the indicated positions. 3) As an alternative, the Manufacturer can supply the pieces indicated in positions 2 and 7 from forged or sheet and wires welded to each other. 4) During assembling, "L" plates to fix handwheels in minimum diameter boxes shall be cut at the level of the unused hole in order to prevent possible interferences of plates with the valve rod. 5) The purchase order shall report the chain length.



Sheet 57 di 76


fig. 23 Handwheels from 355 to 715 mm



Sheet 58 di 76





Sheet 59 di 76



1 CALIBRATED CHAIN 8 UNI 4417 ( SEE NOTE 5) Carbon steel 1 2 CHAIN RAIL Melted steel ( SEE NOTE 3) 1 3 THREADED RING (for chain rail fixing) A 283 Gr. C 1

4 SCREW 5/16 x 20 according to document 15722.PIP.MEC.FUN (for ring stop) According to document 15722.PIP.MEC.FUN 1

5 WASHER AT 14 UNI 1751 A 283 Gr. D 6 6 SCREW WITH NUT 1/2 x 45 according to document 15722.PIP.MEC.FUN According to document 15722.PIP.MEC.FUN 6 7 CHAIN WHEEL Melted steel ( SEE NOTE 3) 1 8 "U" BOLT 10 with threading 3/8" UNC - 2A According to document 15722.PIP.MEC.STD 3 9 "L" PLATE FOR FIXING TO HANDWHEEL Carbon steel 3 10 NUT 3/8" UNC - 2B According to document 15722.PIP.MEC.STD 6

11 WASHER 14 x 24 UNI 6593 - 69 A 283 Gr. C 6

NOTES 1) All dimensions are in mm, unless otherwise specified. 2) Each component of the whole shall be provided with the common mark in the indicated positions. 3) As an alternative, the Manufacturer can supply the pieces indicated in positions 2 and 7 from forged or sheet and wires welded to each other. 4) During assembling, "L" plates to fix handwheels in minimum diameters boxes shall be cut at the level of the unused hole in order to prevent possible interferences of plates with the valve rod. 5) The purchase order shall report the chain length.



Sheet 60 di 76


fig. 25 handwheels from 715 to 1090 mm



Sheet 61 di 76





Sheet 62 di 76



1 CALIBRATED CHAIN 8 UNI 4417 ( SEE NOTE 5) Carbon steel 1 2 CHAIN RAIL Melted steel (SEE NOTE 3) 1 3 THREADED RING (for chain rail fixing) A 283 Gr. C 1

4 SCREW ITE 5/16 x 20 according to document 15722.PIP.MEC.FUN (for ring stop) According to document 15722.PIP.MEC.FUN 1

5 WASHER AT 18 UNI 1751 A 283 Gr. D 6 6 SCREW WITH NUT 5/8 x 60 according to document 15722.PIP.MEC.FUN According to document 15722.PIP.MEC.FUN 6 7 CHAIN WHEEL Melted steel (SEE NOTE 3) 1 8 "U" BOLT 13 with threading 1/2" UNC - 2A According to document 15722.PIP.MEC.STD 3 9 "L" PLATE FOR FIXING TO HANDWHEEL Carbon steel 3 10 NUT 1/2" UNC - 2B According to document 15722.PIP.MEC.STD 6

11 WASHER 18 x 30 UNI 6593 69 A 283 Gr. C 6

NOTES 1) All dimensions are in mm, unless otherwise specified. 2) Each component of the whole shall be provided with the common mark in the specified positions. 3) As an alternative, the Manufacturer can supply the pieces indicated in positions 2 and 7 from forged or sheet and wires welded to each other. 4) During assembling "L" plates to fix handwheels in the minimum diameters boxes shall be cut at the level of the unused hole in order to prevent possible interferences of plates with the valve rod. 5) The purchase order shall report the chain length.



Sheet 63 di 76


2.3.5 Lubricators 2.3.5.1 Lubricated stuffing box valves, detail of connection for lubricator

fig. 27

DIMENSIONS: ASME / ANSI B1.20.1 and as indicated in table THREADING: ASME / ANSI B1.20.1 NPT. TOLLERANCES: ASME / ANSI B1.20.1 .

As regards threading, the maximum axiality error accepted between the hole axis and the threading axis can amount to 1,58 mm on a length of 304 mm.



Sheet 64 di 76


L2B

C

A

fig. 28 "X" DETAIL Female threading

B DN Valves

DN" Lubricator

DN" Thread L2 min

C A

< 3 1/4 1/4 10.2 8.3 7.93> 4 3/8 3/8 10.3 9.1

7.1411.1

NOTES : B = Perfect threads minimum length.

L2 = Real length according to ASME/ANSI B1.20.1



Sheet 65 di 76


2.3.5.2 Valves with lubricated seat, detail of connection for lubricator

fig. 29

DIMENSIONS: ASME / ANSI B1.20.1 and as indicated in table THREADING: ASME / ANSI B1.20.1 NPT. TOLERANCES: ASME / ANSI B1.20.1 .

As regards the threading, the maximum axiality error accepted between the hole axis and the threading axis can amount to 1,58 mm on a length of 304 mm.

B DN Valve

DN" lubricator

DN" Thread L2 min

C A

< 3 1/4 1/4 10.2 8.3 7.93> 4 3/8 3/8 10.3 9.1

7.1411.1

NOTES : B = Perfect threads minimum length. L2 = Real length according to ASME / ANSI B1.20.1



Sheet 66 di 76


2.3.5.3 Lubricator for valves lubricated at the shutter and the stuffing box

fig. 30

DN Valve

DN" lubricator.

DN" Thread A L C

< 3 1/4 1/4 17.4 11.1> 4 3/8 3/8 19.0 12.7

6.3

DIMENSIONS: As indicated in table and according to Manufacturers

catalogues (for the connection threading to valve): ASME / ANSI B1.20.1).

THREADING: (Connection to valve) : ASME / ANSI B1.20.1 NPT.

TOLLERANCES: On the connection threading to valve: ASME/ANSI

B1.20.1 . MATERIAL: For body, junction and inserts : galvanized Carbon

steel.



Sheet 67 di 76


2.3.6 Repairing

Contractor may proceed to valves parts repairing only with Companys approval. In any case, unless otherwise indicated, repairs of parts of cast valves by welding shall be in compliance with appendix 7 of ASME code Sect. VIII Div. I. Welding procedures shall be qualified in accordance with ASME IX. Adequate heat treatment shall follow the welding in accordance with the valve material code. The procedures for repairing shall be described in the valve origin certificate. The Contractor shall notify to Company the set up of the material to be tested with at least a 10-day notice.

2.3.7 Spare parts

The valves shall be supplied complete with spare parts for commissioning and start-up and the list of spare parts for two years of operation.

2.3.8 Painting and packing Painting and packing shall comply with the requirements of specifications

20000.VAR.PAI.FUN and 05883.VAR.GEN. SPC and the documents issued for the specific project.

2.3.9 Marking of valves

All valves shall be equipped with a proper identification name plate which shall report the following information: - valve tag, - nominal diameter, - rating, - body material, - trim material, - Contractor name and/or trade mark, - serial number, manufacturing year and order number. The valves name plate shall be of stainless steel or nickel alloy. Unless otherwise specified by Company, the valves ND 4 are accepted with anodized aluminium name plate. All parts relating to the valve shall be taken from the appropriate Data Sheet for Normalized valves using the abbreviations therein. If supplementary tests are specified, the valve tag shall be followed by the symbol corresponding to the required test and the identification code of the type of the test piece (see paragraph 2.8.2 table 1).



Sheet 68 di 76


Example of marking of a valve ND 8 on which the supplementary tests P.S.6M have been performed: VS 116 AG 3C1 BW 8 / PS6M The Contractors name and/or mark, body material code, and valve nominal diameter shall be embossed (by casting or forging) on the valve body.

2.4 Boundaries, limits and exclusions

Additional requirements may be requested to be formalized in the Data Sheet MOD.MEC.VLI.001. The main requirements which may be requested according to the valve type, are reported in the following table: ADDITIONAL REQUIREMENTS VS VD VR VB VDR VF VM VPSMOOTH Finish or 125, 250, 500 Ra (on flange with RF facing)

X X X X X X X X

Holes and threads in bosses X X X X X By-pass X X X X Actuator (specified by Instrumentation dept. STRUM.)

X X X X X X X

Dampers and counterweights X Internal diameter of pipe to be connected

X X X X X

T wrench or handwheel (for internal screw VS)

X

Supplementary tests X X X X X X X XTests X X X X X X X XSupplementary tests X X X X X X X X



Sheet 69 di 76


2.5 Ergonomics Operating devices and everything installed around the valves shall be

designed in such a way as:

- to not give any hindrance to the escape ways and the normal passages,

- to make the valves accessible for maintenance operations. 2.6 Safety No safety requirements to be considered exist. 2.7 Requirements for Quality Management and Quality Assurance

Possible Requirements for Quality Management and Quality Assurance will be included in the applicable management specification, attached to the offer.

2.8 Additional requirements for review 2.8.1 Tests

Valves and their parts shall be submitted by Contractor to all tests and verifications specified in the Inspection Data Sheet (IDS), notably: a) verification of chemical analysis and mechanical properties of the

materials; b) dimensional check; c) visual examination of castings in accordance with MSS SP-55 code; d) pressure test of body and bonnet; e) hydraulic tightness test with closed valve; f) pneumatic tightness test of seats and backseat; g) BW ends of cast valves with ND 2 shall always be 100%

radiographed in accordance with ASME code B16.34; h) BW ends of all forged and cast valves with ND 1 shall always be

submitted to 100% ultrasonic examination in accordance with ASME code B16.34.

The test procedures specified at points d), e), and f) shall be in accordance with the following codes: - API Std 598 for gate and plug valves; - EN 12266 for globe, check and ball valves; - ISO 14313 (API6D) for valves manufactured in accordance with this

code;

Eni S.p.A. Ex

manual valves eni_15801e05

Documents

lubricator valves

valves extensions

sheets of annex

lubricator lubricator

lubricated stuffing

elevated valve operation

stuffing box chain wheel

d date eni