Saudi Aramco Materials System Specification 04-SAMSS-035 PDF

Materials System Specification 16 December 2021 04-SAMSS-035 General Requirements for Valves Document Responsibility: Valves Standards Committee Previous Revision: 19 July 2020...

Materials System Specification 16 December 2021 04-SAMSS-035 General Requirements for Valves Document Responsibility: Valves Standards Committee Previous Revision: 19 July 2020 Next Revision: 16 December 2026 Contact: (harbmr0b) Page 1 of 28 ©Saudi Arabian Oil Company, 2021. Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Contents SUMMARY OF CHANGES.................................................................................................................. 3 1 SCOPE....................................................................................................................................... 4 2 CONFLICTS AND DEVIATIONS.................................................................................................... 4 3 REFERENCES............................................................................................................................. 4 4 DEFINITIONS............................................................................................................................. 7 5 GENERAL.................................................................................................................................. 7 6 DESIGN AND DIMENSIONS...................................................................................................... 12 7 MATERIALS............................................................................................................................. 15 8 OPERATORS............................................................................................................................ 16 9 QUALITY REQUIREMENTS....................................................................................................... 17 10 PAINTING AND COATING.................................................................................................... 17 11 MARKING............................................................................................................................ 18 12 PREPARATION FOR SHIPMENT............................................................................................ 18 DOCUMENT HISTORY..................................................................................................................... 20 SKETCH A - DRAIN, VENT, AND SEALANT PIPING FOR BURIED VALVES........................................... 21 SKETCH B – PROTECTION OF VALVE ENDS..................................................................................... 22 APPENDIX 1 – BUSINESS MODELS.................................................................................................. 23 APPENDIX 2 – OXYGEN SERVICE VALVES........................................................................................ 25 ©Saudi Arabian Oil Company, 2021.Page 2 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Summary of Changes Paragraph Number Previous Current Change Technical Change(s) Revision Revision Type 19 Jul 2020 16 Dec 2021 Added NMR-7925, ASME B16.34, ISO 23632, IOGP S-562 Annex X 3.2 3.2 Addition and IOGP S-611 Annex J. 5.1.3 5.1.3 Editorial Reworded the paragraph for clarity Added requirements for Fugitive Emission and Performance - 5.1.4 Addition validation type-testing of valves 5.1.4 5.1.5 Editorial Renumbered Nonmaterial Requirements (NMR) shall be provided in accordance - 5.2.8 Addition with Form NMR-7925. Changed the paragraph “Welded end valves shall be designed with ends of sufficient length to prevent damage to the valve internals during site welding, and PWHT when applicable. Details on the design configuration (e.g., extended bodies, extension nipples welded to the body and heat treatment in the valve manufacturing facility 6.2.3 6.2.3 Modification before valve assembly) and dimensions shall be included on the drawing for approval per Section 5.2.” to “Welded end valves shall be designed with ends of sufficient length to prevent damage to the valve internals during site welding. The design configuration and dimensions shall be included on the drawing for approval per Section 5.2.” 6.3.1 6.3.1 Modification clarified the sizes for API 6D valves and reduced opening valves 6.3.12 6.3.12 Editorial Changed the wording for clarity 6.7 6.7 Editorial Changed the wording for clarity - 6.8.3 Addition Soft-seated valves shall have an antistatic device Included “Fire type-tests shall be witnessed and certified by an independent agency. Fire test reports and records compliant with the 6.10 6.10 Addition relevant industrial type-test standard shall be made available to purchaser upon request.” to provide standard requirements when fire- type tested designs are specified. 7.5 7.5 Editorial Included Body-Bonnet in the second sentence for clarity 7.9 7.9 Addition Included V-packing seals For gas and multiphase services, elastomer shall be rapid gas - 7.10 Addition decompression resistant grade and O-ring section shall be limited to 0.275 in. (6.99 mm), unless specified otherwise by the purchaser. Changed SAES-H-002 Section 5.2.10 to Section 5.2.9 to align with 10.1 10.1 Editorial latest edition 10.2 b) 10.2 b) Editorial included body guide surfaces Valves designated for hydrogen services shall be tagged or marked - 11.4 Addition identifying the application. For Model A, included the engineering department shall be located App. 1 App. 1 Addition on-site or in a related offsite facility within the same company/corporation. Table A.1 Table A.1 Addition For Model A, added offsite engineering in the table ©Saudi Arabian Oil Company, 2021.Page 3 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 1 Scope 1.1 This specification defines the general requirements for valves normally classified under Saudi Aramco Materials System (SAMS) Class 04. 1.2 Specifically excluded from the scope are requirements for: Class 04 API SPEC 6A valves and chokes covered by 04-SAMSS-055; control, safety-relief, relief, surge- relief, solenoid, pilot and other type valves classified under SAMS Class 34; and wellhead valves classified under SAMS Class 45. 1.3 Notes to Buyer are included in Section 5.4. 2 Conflicts and Deviations Any conflicts between this document and other applicable Mandatory Saudi Aramco Engineering Requirements (MSAERs) shall be addressed in writing to the EK&RD Coordinator. Any deviation from the requirements herein shall follow internal company procedure SAEP-302. 3 References All referenced specifications, standards, codes, drawings, and similar material are considered part of this Material System Specification to the extent specified, applying the latest version, unless otherwise stated. 3.1 Saudi Aramco References Saudi Aramco Engineering Procedure SAEP-302 Waiver of a Mandatory Saudi Aramco Engineering Requirement Saudi Aramco Engineering Standards SAES-H-001 Coating Selection and Application Requirements for Industrial Plants and Equipment SAES-H-002 Internal and External Coatings for Steel Pipelines and Piping SAES-H-004 Protective Coating Selection and Application Requirements for Offshore Structures and Facilities SAES-H-002V Approved Saudi Aramco Data Sheets for Pipeline and Piping Coatings SAES-H-101V Approved Saudi Aramco Data Sheets - Paints and Coatings Saudi Aramco Materials System Specifications 04-SAMSS-048 Valve Inspection and Testing Requirements ©Saudi Arabian Oil Company, 2021.Page 4 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 34-SAMSS-716 Valve Actuators Saudi Aramco Non-material Requirements NMR-7925 Non-material Requirements for Valves - All Types Saudi Aramco Inspection and Testing Requirements Form 175-000003 Detailed Instructions of Inspection and Testing Requirements Form 175-043000 Valve Materials Certification Requirements Form 175-043600 Valves: Metallic; Includes Gate, Globe, Angle, Check, Needle, Ball, Plug, Piston, and Butterfly Form 175-043601 Valves: Low Severity, Utilities Service in Cast Iron or Ductile Iron and Non-Ferrous Material Saudi Aramco Forms and Data Sheets SA-6233-1 Valve Data Sheet 3.2 Industry Codes and Standards American Petroleum Institute API RP 591 Process Valve Qualification Procedure API SPEC 6D Specification for Pipeline and Piping Valves API STD 6FA Standard for Fire Test for Valves API STD 602 Gate, Globe, and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries API STD 607 Fire Test for Quarter-turn Valves and Valves Equipped with Nonmetallic Seats American Society of Mechanical Engineers ASME B1.20.1 Pipe Threads, General Purpose (Inch) ASME B16.1 Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250 ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard ASME B16.10 Face-to-Face and End-to-End Dimensions of Valves ASME B16.11 Forged Fittings, Socket-Welding and Threaded ASME B16.20 Metallic Gasket for Pipe Flanges ASME B16.25 Buttwelding Ends ASME B16.34 Valves — Flanged, Threaded, and Welding End ©Saudi Arabian Oil Company, 2021.Page 5 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300 ASME B16.47 Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay) ASME SEC IX Boiler & Pressure Vessel Code: Qualification Standard for Welding, Brazing, and Fusing Procedures; Welders; Brazers; and Welding, Brazing, and Fusing Operators American Society for Testing and Materials ASTM A193 Standard Specification for Alloy-Steel and Stainless Steel Bolting for High-Temperature or High Pressure Service and Other Special Purpose Applications ASTM A703 Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts ASTM B733 Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal American Water Works Association AWWA C550 Protective Interior Coatings for Valves and Hydrants European Committee for Standardization EN 10204 Metallic Products - Type of Inspection Documents International Organization for Standardization ISO 5210 Industrial Valves - Multi-Turn Valve Actuator Attachments ISO 5211 Industrial Valves - Part-Turn Actuator Attachments ISO 9000 Quality management systems — Fundamentals and vocabulary ISO 9001 Quality Management systems - Requirements ISO 10497 Testing of Valves - Fire Type-Testing Requirements ISO 23632 Industrial valves — Design validation-testing of valves International Association of Oil and Gas Producers IOGP S-562 Annex X Fugitive Emission Type Testing (version 3.0, Jan 2019) IOGP S-611 Annex J Fugitive Emission Type Testing (version 1.0, May 2019) Manufacturers Standardization Society ©Saudi Arabian Oil Company, 2021.Page 6 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves MSS SP-25 Standard Marking System for Valves, Fittings Flanges, and Unions MSS SP-45 Bypass and Drain Connections National Association of Corrosion Engineers / International Organization for Standardization NACE MR0175 / Petroleum, Petrochemical and Natural Gas Industries – ISO 15156 Materials for Use in H2S Containing Environments in Oil and Gas Production 4 Definitions Buyer's Representative: The person acting on behalf of the Buyer, who may be from the Engineering, Inspection, Purchasing, Standardization or User Organization. Assembly: The association of multiple parts/components into a finished product, including as a minimum, installation of all pressure-containing parts, pressure- controlling parts, seals, and bolting. On-site: The vendor’s valve manufacturing facility which has been approved by Saudi Aramco. 5 General 5.1 Qualification Procedure for Manufacturing Facilities and Products 5.1.1 As a minimum, all valve manufacturers shall meet the requirements listed in Appendix 1, and shall be required to undergo a plant survey and an engineering evaluation of their products by Saudi Aramco with respect to their capability of meeting all applicable Saudi Aramco specifications and industry standards. No Purchase Orders shall be placed on any valve manufacturer unless the valve manufacturer has undergone and passed this technical evaluation. For each Purchase Order, the valve manufacturer shall comply with the business model in Appendix 1. Additional information may be requested and additional requirements (such as but not limited to the examples listed below) may be imposed where a valve manufacturer does not meet certain requirements or where additional information or objective evidence is considered necessary for establishing and demonstrating the suitability of a valve manufacturer. a) API RP 591, b) Industry standard monogram or other certification, c) Satisfactory destructive examination of sample valves, d) ASTM A703 with supplementary requirements S2, S14, S22, S26, and, e) Design type approval testing. ©Saudi Arabian Oil Company, 2021.Page 7 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 5.1.2 Proposed new valve designs shall have been in service with a satisfactory performance history at three locations with three different major international oil and gas operating companies for at least five years each. The valve manufacturer shall provide an experience list including valves size, rating, service, and the names of specific persons to contact with their e-mail addresses and telephone numbers. 5.1.3 Performance validation The valve manufacturer shall have performance validation records available which demonstrate that the valve design operates smoothly and repeatedly in the specified orientation(s) under design and operating conditions without permanent deformation of any part, seizure, wear, or galling effects in the absence of any form of lubrication (except where lubricant/sealant is the primary means of sealing such as in lubricated plug valves). The valve manufacturer shall consider the effect of factors such as, but not limited to, assembly loads, actuator weight, actuator orientation, actuating closing and opening loads and stroke speeds, stem orientation, stem packing protection where the stem installation is orientated below horizontal, and specified external loads when extending a qualification test to a product range. 5.1.4 Fugitive Emission, Seat Performance and Operating Torque Type-Testing Note: Section 5.1.4 has an effective date of 01 Jan 2023; valves manufactured after this date shall meet the requirements in section 5.1.4. a) General Valve designs categorized in Table 1 of steel, nickel-base alloys, and other alloys in ASME B16.34 (Table 1) shall be qualified by type-testing in accordance with the specified industrial type-testing standard. Table 1 Categorization of valve designs for type-testing Fugitive Emission Product standards and Design Validation Valve type Performance specifications Type-Testing Type-Testing Gate IOGP S-611; API 600; API 602 IOGP S-611 ISO 23632 (1) Globe API 602; API 623 Annex J Gate API 6D API 6D Annex F Ball IOGP S-562; API 6D API 6D Annex F IOGP S-562 Butterfly API 609 category B Annex X ISO 23632 Lubricated plug API 599 NOTE 1 The valve manufacturer's written procedure for rising stem designs shall follow modified ISO 23632 to account for the design. ©Saudi Arabian Oil Company, 2021.Page 8 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves b) Extensions of qualification to the product range Upon the successful completion of the test program for a valve design, this qualification can be extended to other valves of the same basic design provided the criteria, rules, scaling, and limitations in the applicable industrial type-testing standard, product standard and product specifications are met. The temperature range validated by the test product validates the design for all temperatures that fall entirely within that range. The valve manufacturer can extend the qualification per the test orientations illustrated in Table 2: - test orientation 2 can be extended to qualify orientation 1. - test orientation 3 can be extended to qualify orientation 1 and 2. - for fugitive emission qualification only, test orientation 3 can be extended to qualify orientation 4 and vice versa. Table 2 Valve Orientation Designations Test 1 2 3 4 5 Orientation Illustration Valve Bore Horizontal Horizontal Horizontal Vertical Horizontal Orientation Stem Above Below [Special] Vertical Horizontal Horizontal Position horizontal horizontal Note: The permitted qualification extensions relating to valve orientation apply only for type- validation testing. The valve orientation for production testing shall continue to be in accordance with 04-SAMSS-048. The valve manufacturer shall engage an independent qualification accreditation body, to perform the inspections, examinations, and to witness and certify the tests. The testing facility and independent qualification accreditation body used shall be mutually agreeable to the purchaser and the manufacturer. c) Pre-existing designs Pre-existing designs already qualified by type-testing for fugitive emissions per API 624 or API 641 are an acceptable alternative where the testing meets equivalent tightness, endurance classes and limitations specified above. Pre-existing designs already qualified by type testing for durability of seat performance and operating torque to an equivalent industrial standard or ©Saudi Arabian Oil Company, 2021.Page 9 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves specification can be proposed for Purchaser evaluation and approval per 5.2.3 where the testing consisted of at least the same number of mechanical cycles (including opening against the maximum differential pressure) and thermal cycles. d) Records Records of the above qualifications, including the test procedure and test reports, shall be made available upon request. 5.1.5 When requested, the valve manufacturer shall submit their revision controlled list of sub-suppliers who provide castings and forgings for pressure retaining components (bodies, bonnets, etc.) and sub-contractors for review and acceptance. The valve manufacturer shall not add any other sub-supplier or sub-contractor to this list without the acceptance of the Buyer’s Representative. The accepted list shall be attached to all biddings. As a minimum, the valve manufacturer shall submit the certificates and documentation listed below for each casting and forging sub supplier for the evaluation. Other certifications, testing or documents may be requested depending on supplier history and experience. a) ISO 9001 certificates or equivalent; b) Pressure Equipment Directive (PED) Certificate or equivalent; c) Years of experience casting/forging different material grades, geometries, sizes and ratings; d) Customer reference list; and e) Supply history by material grade, geometry, size and rating to the valve manufacturer. 5.2 Drawing Approval 5.2.1 Before the start of manufacture, the valve manufacturer shall supply detailed drawings of the proposed valves. The drawings shall depict the following (as applicable): a) Stem sealing arrangement and seat ring assembly details. b) All pressure retaining welds and hard facing or corrosion resistant overlays together with the applicable WPS and PQR. c) A list of all the applicable industry and Saudi Aramco specifications. d) A bill of materials indicating the specific ASTM or equivalent material specification for each part. e) Gear operator and calculated human operator force to comply with 8.2 of this specification. ©Saudi Arabian Oil Company, 2021.Page 10 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves f) Internal coating specifications. g) Arrangement and attachment of drain and vent fittings/valves h) Any other information required to show compliance with the purchase order. 5.2.2 When requested by Saudi Aramco Engineering, Material supply, PMT or End User, the valve manufacturer shall obtain formal drawing approval before the start of manufacture. 5.2.3 When formal approval is required, it shall be obtained through the Buyer as follows: a) If the purchase is made through the Saudi Aramco SAP Materials Group (SMG), approval authority is the Saudi Aramco Material Standardization / Projects & Strategic Purchasing Department. b) If the purchase is made through the Saudi Aramco Direct Charge system, the approval authority is the organization originating the requisition. c) If the purchase is made through a Contractor to Saudi Aramco, refer to the contract for the appropriate approval authority. 5.2.4 The valve manufacturer shall be fully responsible for the valve drawing and its compliance with all applicable standards. Any drawing approval, acceptance or stamping does not relieve the valve manufacturer of full responsibility for product standards compliance, quality, reliability and integrity. 5.2.5 The valve manufacturer shall manufacture the proposed valves strictly in accordance with the submitted drawings which shall be retained in his files. If any subsequent change is proposed, the valve manufacturer shall provide revised drawings for review and compliance as stated above. 5.2.6 It is the valve manufacturer’s responsibility to ensure that all sub-suppliers and sub-contractors comply with the applicable industry and Saudi Aramco standards. 5.2.7 When requested, the valve manufacturer shall submit detailed machine drawings of valves parts including, bodies, bonnets, trim, etc. 5.2.8 Nonmaterial Requirements (NMR) shall be provided in accordance with Form NMR-7925. 5.3 Welding Welding procedures and welder performance qualifications shall be in accordance with ASME SEC IX. 5.4 Notes to Buyer ©Saudi Arabian Oil Company, 2021.Page 11 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves The Buyer's Representative shall fill out Form SA-6233-1 for each non-SMG line item and attach it to the Purchase Requisition/Order. All information on the datasheet must be completed in order to fully define the valve requirements. The requirements should be elaborated upon in the notes section where necessary in order to fully define requirements. Actuated valves should be complemented by an actuator datasheet. Actuator requirements are outside the scope of this specification. For each SMG (SAP Materials Group) line item, the Buyer's Representative shall confirm the valve description in the PR/PO specifies complete requirements, including the required coating system. When replacing existing valves with non-standard flange dimensions (such as NPS 30 and larger in Class 1500), the applicable standard drawing shall be included in the specification. 6 Design and Dimensions 6.1 Flanged Ends Flange dimensions for steel valves shall comply with the latest revisions of the following: Up to NPS 24, ASME Classes: ASME B16.5 NPS 26 and above, ASME Classes: ASME B16.47 Series A The design and dimensions of valves with non-standard flange dimensions shall be approved in accordance with 5.2.3 prior to the start of manufacture. Ring grooves shall comply with ASME B16.20. The gasket contact surface of all steel raised face flanges shall have a smooth machine finish in the range 3.2 to 6.4 micrometers AARH (see ASME B46.1), and shall also be applicable to the faces of unlined wafer-type valves. 6.2 Weld Ends 6.2.1 Butt welding ends for all valve sizes shall be prepared in accordance with ASME B16.25 for use without a backing ring. 6.2.2 Valves 2” and below with soft seals or seats shall have factory-installed extension nipples or extended bodies to prevent damage due to welding heat. 6.2.3 Welded end valves shall be designed with ends of sufficient length to prevent damage to the valve internals during site welding. The design configuration and dimensions shall be included on the drawing for approval per Section 5.2. 6.3 Drains, Vents and other Body Fittings for Steel Valves 6.3.1 Drain size and location shall be in accordance with MSS SP-45, except for API 6D valves NPS 2 (DN 50) to NPS 8 (DN 200) which shall have drain ©Saudi Arabian Oil Company, 2021.Page 12 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves sizes in accordance with API 6D. For valve sizes above NPS 24, the drain size shall be NPS 2 as a minimum or as specified by the P.O. For reduced opening valves, the nominal size of the reduced opening shall be used to determine the drain size. 6.3.2 Socket weld connections shall comply with ASME B16.11. 6.3.3 Threaded connections shall comply with ASME B1.20.1, NPT. 6.3.4 Small steel threaded and socketweld end valves that are accessories to the main valve shall have a minimum body rating equivalent to API STD 602, Class 800. 6.3.5 Each sealant injection fitting shall consist of a one-piece giant buttonhead type body, an internal check valve mechanism and a safety vent cover cap. Minimum metallurgy shall be as follows: a) Body, vent cover cap and cage/spring retainer - 316 SS, b) Spring - UNS N07750, c) Ball - UNS N05500 or Tungsten Carbide. 6.3.6 When a seat sealant injection fitting is required, a check valve shall be installed in the body wall under the sealant injection fitting. The check valve in the body wall shall be secured independent of the injection fitting. 6.3.7 All valve threaded body connections including drain, vent and sealant injection piping shall be seal welded, except those that are frequently removed (such as vent and drain plugs) or those that contain moving parts (such as injection fittings, relief valves, etc.). 6.3.8 All drain valves and associated piping components shall have corrosion resistance at least equal to the trim material of the main valve, and shall be AISI 316L SS as a minimum. 6.3.9 Vent and relief valves, when provided, shall have corrosion resistance at least equal to the body material of the main valve, and shall be carbon steel with SS 316 trim as a minimum. 6.3.10 All drain and vent valves shall have hard faced seat rings. 6.3.11 Drain and vent valve piping shall be fixed in such a way to avoid damage due to vibration or external impact. 6.3.12 Welds for attaching bracing to drain and vent valve piping should be continuous with smooth finish. 6.3.13 Valve assembly shall provide sufficient access to fittings and accessories. 6.3.14 The valve manufacturer shall procure drain, vent, and bypass valves which form part of the pressure containing boundary of the main valve from a source approved by Saudi Aramco. 6.4 Buried and Inaccessible Double Block and Bleed Valves ©Saudi Arabian Oil Company, 2021.Page 13 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Buried and inaccessible Double Block and Bleed valves shall have the drain, vent and sealant injection connections (if applicable) extended above ground in accordance with the typical arrangement illustrated in Sketch A and as per the following requirements: a) All piping (schedule 80 minimum), valves and fittings shall have corrosion resistance at least equal to the main valve body material, and shall be SS 316L as a minimum. The entire piping system shall be coated with the same coating system as the main valve. b) Compression fittings shall not be used. c) Unions are permitted only in the extended lines of in-line repairable valves (top-entry ball valves and through conduit gate valves) at a suitable location to facilitate removal of the bonnet. d) The drain and vent connections shall be piped up to approximately 250 mm below the operating level and shall terminate in a horizontally- installed block valve fitted with an NPT-threaded steel plug. e) The sealant injection lines shall be piped up separately to approximately 250 mm below the operating level and terminate in a horizontally-installed one-piece sealant injection fitting giant button-head type with internal check valve mechanism. An additional check valve shall be provided at the location where the sealant injection line enters the valve body. f) All piping shall follow the valve contour as closely as possible and shall be rigidly connected to the valve and stem extension. g) All piping shall have an AISI Type 316 stainless steel nameplate attached to identify the service. 6.5 Cast Iron Valves Cast iron valves shall be flanged per ASME B16.1. 6.6 Ductile Iron Valves Ductile iron valves shall be flanged per ASME B16.42. The face-to-face dimension shall be in accordance with ASME B16.10. 6.7 Bolted Bonnet/Cover Valves The length of thread engagement between each bolt (or stud) and the body shall be at least equal to the nominal diameter of the bolt. For body-to-bonnet flange connections designed with threaded through holes and “capscrew type” bolts, the “capscrew type” bolts shall be at least flush with the bottom of the body flange and there shall be no more than two protruding thread crests visible. 6.8 Ball and Plug Valves 6.8.1 Stems shall be blowout-proof. ©Saudi Arabian Oil Company, 2021.Page 14 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 6.8.2 Lever operated valves shall be equipped with a handwheel or self-locking handle to prevent accidental operation. 6.8.3 Soft-seated valves shall have an antistatic device. 6.9 Lubricated Plug Valves The plug surface of lubricated plug valves shall have an antifriction treatment. 6.10 Fire Type-testing When specified in the Purchase Requisition/Order, valves shall be qualified “fire- safe” in accordance with API STD 607, ISO 10497 or API SPEC 6FA. Fire type- tests shall be witnessed and certified by an independent agency. Fire test reports and records compliant with the relevant industrial type-test standard shall be made available to purchaser upon request. 6.11 Pipeline Valves API SPEC 6D valves (ball & gate) shall be designed to withstand a compressive axial thrust, exerted by the piping without permanent distortion of the body and without jamming the gate/ball between the seats. The valve manufacturer shall have conducted tests on representative samples to demonstrate satisfactory valve performance under pipeline compression and/or bending loads. Upon request, the valve manufacturer shall submit his test procedure and test reports for review. 6.12 Actuator Mounting Valve to actuator mounting shall be in accordance with ISO 5210 or ISO 5211. 6.13 Oxygen Service Valves Valves specified for oxygen service shall meet the requirements in Appendix 2. 7 Materials 7.1 Materials shall be suitable for continuous exposure at the service conditions and ratings specified. Any variation, including temperature limitations for soft-seal parts, must be brought to the attention of the Buyer’s Representative during the drawing approval stage per Section 5.2. The valve manufacturer shall ensure that all materials used for valve components in rubbing or sliding contact will not gall. Materials for valves in wet sour service shall meet the requirements of NACE MR0175/ISO 15156. 7.2 When butt welding end valves are made of carbon steel with a specified minimum yield strength of 289 MPa (42,000 psi) or higher, the maximum carbon content shall not exceed 0.23% as specified in API SPEC 6D, Section 6. For fabricated valves, this limitation applies only to the ends. 7.3 Unless otherwise specified, hardfacing shall be Alloy No. 6 (ERCoCr‐A or ECoCr‐ A with metallurgy equivalent to UNS R30006) or equal; Alloy No. 21 (ERCoCr‐E ©Saudi Arabian Oil Company, 2021.Page 15 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves or ECoCr‐E with metallurgy equivalent to UNS R30021) or equal is acceptable when permitted by the applicable industry standard. 7.4 Low carbon grades of austenitic stainless steels are acceptable substitutes for the corresponding regular carbon grades, but not vice versa. 7.5 The corrosion resistance of body-bonnet bolting and metallic gasket materials shall be at least equal to that of the body. However, the body-bonnet bolting material is not required to be more corrosion resistant than austenitic stainless AISI Type 316 (per ASTM A193) unless specified in the Purchase Order. 7.6 Autocatalytic (Electroless) Nickel Phosphorus (ENP) coatings on carbon and low alloy steel substrates shall be applied in accordance with the requirements of ASTM B733, SC4, Deposit Alloy Type V, Class 3, (carbon steel or low alloy substrate)/NiP10 75. For Testing and acceptance criteria, refer to 04-SAMSS-048. Special considerations apply to plating on stainless steel substrates; when specified in the Purchase Requisition/Order the valve manufacturer shall submit their plating procedure for approval in accordance with 5.2.3. 7.7 Spring material shall be UNS R30003, UNS N06600, UNS N07750, UNS R30035, or per NACE MR0175/ISO 15156. 7.8 When corrosion resistant weld overlay is specified, the corrosion-resistant weld overlay shall be applied in at least two welding passes and the final finished thickness shall be a minimum of 3mm unless otherwise specified. 7.9 When lip seals and V-packing seals are supplied, the metallic surfaces of lip seal and V-packing pockets in carbon and low-alloy steel bodies and bonnets/closures shall be supplied with a corrosion resistant weld overlay at least equal to the trim material of the main valve, and shall be AISI 316 SS as a minimum. 7.10 For gas and multiphase services, elastomer shall be rapid gas decompression resistant grade and O-ring section shall be limited to 0.275 in. (6.99 mm), unless specified otherwise by the purchaser. 8 Operators 8.1 Gear boxes shall be dust and weather-proof and filled with a lubricant suitable for operation up to 80°C. 8.2 Gear operators for quarter turn valves shall be equipped with a self-locking system. 8.3 All valves operators/actuators mechanisms (including hand-wheel, lever, gear and power) shall be designed to stroke the specified valve from the fully open position to the fully closed position and vice versa, under the worst process operating conditions (breakaway, running, seating). 8.4 The maximum (human) operator force required to seat or unseat the valve at the maximum specified differential pressure shall not exceed 360N (80 pounds) at the rim of the hand-wheel. ©Saudi Arabian Oil Company, 2021.Page 16 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 8.5 Anti-torque devices such as shear pins or mechanical input stops are permitted. The valve manufacturer shall provide detailed technical specifications of the proposed device, the allowable loads with and without the device, and the additional costs. 8.6 All actuators shall be purchased from a source approved by Saudi Aramco. The valve manufacturer shall guarantee the satisfactory performance of the complete unit under the service conditions specified. In addition, actuators shall be supplied in accordance with 34-SAMSS-716. 8.7 Mounting brackets for actuators shall be carbon steel or ductile iron. 8.8 When the number of hand wheel turns on a gear operator exceeds 100 from the fully open position to the fully closed position, the manufacturer shall specify the number of hand wheel turns for the Buyer Representative acceptance. 9 Quality Requirements 9.1 The valve manufacturer shall implement and maintain an acceptable Quality Program, equivalent to the ISO 9000 Series. The Quality Program documents shall be made available to the Buyer's Representative for review and audit. 9.2 Testing and inspection shall comply with 04-SAMSS-048, Valve Inspection and Testing Requirements. The items manufactured to this specification are subject to verification by the Buyer's Inspection Representative per Saudi Aramco Inspection Requirements Form 175-043000, 175-043600, and 175-043601 (or specially modified versions), as applicable, attached to the Purchase Order. 10 Painting and Coating 10.1 External and internal coatings shall be in accordance with SAES-H-001, SAES-H-002 and SAES-H-004. Ductile and cast iron valves specified with internal coating for water/utility applications may be supplied with the flange face gasket area coated (i.e., exempted from the flange face coating requirement in SAES-H-002, Section 5.2.9). 10.2 When internal coating (i.e., FBE or similar) is specified for valves with carbon and low-alloy steel bodies and bonnets/closures, the following additional requirements shall apply: a) Internal coating is only permitted on body and bonnet/closure components with pressure rating up to and including Class 600. Trim components shall be manufactured from corrosion resistant material. b) All process wetted surfaces of the body and bonnet/closure shall be protected against corrosion using a combination of coating and corrosion resistant material. Discontinuities in corrosion protection are not permitted, interface areas between coating and corrosion resistant material shall include overlaps. ©Saudi Arabian Oil Company, 2021.Page 17 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Critical areas of the body and bonnet/closure shall be supplied with corrosion resistant material at least equal to the trim material of the main valve, and shall be 316 SST as a minimum. Critical areas include pressure containing seal areas, seating pockets/faces, body guide surfaces, pressure boundary penetration connections, and surface areas between injection fittings and seat/stem pockets. The valve manufacturer shall consider the effects of valve unseating, operation, and reseating on coated parts. The valve manufacturer shall extend weld overlay to other areas of bodies and bonnets/closures where necessary for valve integrity, functionality, and performance. c) The valve manufacturer shall have coating qualification procedures (considering valve geometry, pressure rating, and temperature rating as a minimum) and records available. The valve manufacturer’s procedures and records shall be made available to Saudi Aramco upon request. d) Submittal drawings shall show all process wetted areas with clear distinction between the surfaces with coating and the surfaces with corrosion resistant material. Overlapping areas shall be detailed and their location shall be clearly dimensioned on the drawing. 10.3 Only approved products shall be used as per SAES-H-101V and SAES-H-002V. 11 Marking 11.1 The valves shall be marked in accordance with MSS SP-25 and the applicable valve design code. 11.2 For valves NPS 2 and larger, identification plates shall be of an austenitic stainless steel. 11.3 Valves in accordance with NACE MR0175/ISO 15156 shall be tagged or marked identifying compliance with NACE MR0175/ISO 15156. 11.4 Valves designated for hydrogen services shall be tagged or marked identifying the application. 12 Preparation for Shipment 12.1 All valves shall be completely drained of test fluid and thoroughly dried after hydrotesting. The machined surfaces shall be coated with a light film of high viscosity rust inhibiting oil which will not become fluid and run off at temperatures below 80°C. 12.2 Ring grooves on RTJ ends shall be coated with a heavy grease. 12.3 Flanged-end valves NPS 6 and smaller in Class 150 and Class 300 shall be fitted with tight fitting UV resistant plastic covers suitable for withstanding temperatures up to 75°C (167°F). Protective covers shall not deform, loosen or detach during transportation, handling and storage; and shall be removable by hand leaving no residue. ©Saudi Arabian Oil Company, 2021.Page 18 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves 12.4 Flanged-end valves not covered by 12.3 shall be protected as illustrated in Sketch B Figure 1 and as follows: Each flange facing (ring joint, raised, and flat) shall be covered with a Nitrile Based Rubber (or similar) self-adhesive disc (as illustrated in the image below) that meets the following: - oil, ozone and weather resistant; - minimum thickness of 1.5 mm; - withstand temperatures up to 75°C (167°F); - non deforming, loosening or detaching during transportation, handling and storage; - sand blast proof; - removable by hand leaving no glue residue; and, - chloride free. After the rubber disc has been installed, a plywood disc shall be fitted to each flanged-end connection. The plywood disc diameter shall be the same as the outside diameter of the flange and shall be at least 10 mm thick for valves up to NPS 24 and at least 12 mm thick for valves NPS 26 and larger. Each plywood disc shall be attached by machine bolts, with a washer placed behind the head of each bolt, secured with a nut and washer fitted on the inside (back face) of the flange. Each plywood disc shall be attached by a minimum of four (4) bolts on valves up to NPS 24 and eight (8) bolts on valves NPS 26 and larger. Each bolt shall have a diameter not less than ¼ the diameter of the flange bolt hole. 12.5 Weld-ends shall be protected with plywood covers of matching outside diameter as illustrated in Sketch B, Figure 2. Plywood covers shall be securely attached to the valve by means of wire or steel banding. A protective cap, similar to sketch below, shall be installed between each weld-end and the plywood cover. ©Saudi Arabian Oil Company, 2021.Page 19 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Protection caps shall meet the following: - oil, ozone and weather resistant; - withstand temperatures up to 75°C (167°F); - non deforming, loosening or detaching detaching during transportation, handling and storage; and, - removable by hand leaving no residue. Valves shipped in the open position shall have tie rods fitted through the valve bores. 12.6 The ends of threaded and socket weld end valves shall be protected with tight fitting plastic protective caps. Document History 16 December 2021 Major revision. Added validation tests and engineering office location. 19 July 2020 Editorial revision to comply with SAEP-301. 07 May 2019 Editorial revision to comply with content confirmation requirements 18 December 2018 Major Revision. Added Appendix 2 requirements for oxygen valves and revised supply history references in 5.1. Amended business model to add more definition to manufacturing process activities. 22 March 2017 Major revision. Updated Section 5.4 Notes to Buyer to improve awareness of the need to properly specify all requirements including the coating system. Added Section 10.2 internal coating requirements to ensure valves are properly and consistently designed and validated. 11 September 2013 Minor revision to have criteria for approving valve manufacturers and to set minimum test requirements for valve packing. 29 July 2012 Editorial changes on pages 6 & 18. 20 February 2012 Major revision. ©Saudi Arabian Oil Company, 2021.Page 20 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Sketch A - Drain, Vent, and Sealant Piping for Buried Valves (ref: Para. 6.3, 6.4 and 10) (ref: Para. 6.3, 6.4 and 10) 6.4 and 10) ©Saudi Arabian Oil Company, 2021.Page 21 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Sketch B – Protection of Valve Ends 10 mm (⅜ in.) thick plywood for valves NPS 24 & smaller; 12 mm (½ in.) thick plywood for valves NPS 26 & larger; diameter of the plywood shall be equal to the flange O.D. 4 machine bolts for valves NPS 24 & smaller; 8 machine bolts for valves NPS 26 and larger; bolt diameters shall not be less than ¼ the flange bolt hole diameter. 10 mm (⅜ in.) thick plywood for valves NPS 24 & smaller; 12 mm (½ in.) thick plywood for valves NPS 26 & larger; diameter of the plywood shall be equal to the O.D. of the weld end. ©Saudi Arabian Oil Company, 2021.Page 22 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Appendix 1 – Business Models Manufacturer – Model A 1) Engineering department to handle/perform design, material selection, stress analysis, torque calculation and other related design activities. Engineering team must have the capability and required design tools to perform all design analysis. Engineering must have the means for design proof, validation, and verification of designs. The engineering department shall be located on-site or in a related offsite facility within the same company/corporation. 2) On-site assembly and testing capabilities including but not limited to equipment, personnel skills, certifications and tools required for performing the quality control activities. All assembly, pressure testing (hydrostatic and pneumatic/gas), and functional testing shall be performed on-site. Other process activities shall be performed in accordance with Table A.1. 3) All sub-contractors and sub-suppliers shall be approved, controlled and monitored by the valve manufacturer. All sub-contractors and sub-suppliers will be subject for review and assessment by Saudi Aramco technical assessor/representative as deemed necessary. The valve manufacturer shall notify their local responsible Saudi Aramco Supplier Relation office prior to adding any new sub-supplier or material to the list. 4) On-site facility shall hold and maintain the applicable API certifications or equivalent as specified in applicable SAMSS. Manufacturer with Manufacturing Licence Agreement – Model B 1) Detailed agreement with a Technical Partner (a valve manufacturer approved by Saudi Aramco) to utilize the Technical Partners designs and confirmation of engineering and technical support. The Technical Partner shall be responsible for the qualification and approval of the procedures, processes, sub-suppliers, and sub- contractors used by the licensed manufacturing facility. The Technical Partner shall physically audit the licensed manufacturing facility periodically. 2) Engineering personnel capable to providing routine engineering assistance such as material selection, design verification, developing testing procedures, and troubleshooting. 3) On-site assembly and testing capabilities including but not limited to equipment, personnel skills, certifications, and tools required for performing the quality control activities. All assembly, pressure testing (hydrostatic and pneumatic/gas), and functional testing shall be performed on-site. Other process activities shall be performed in accordance with Table A.1. 4) All sub-contractor and sub-supplier shall be approved, controlled, and monitored by the valve manufacturer. All sub-contractors and sub-suppliers will be subject for review and acceptance of Saudi Aramco technical assessor/representative as deemed necessary. The valve manufacturer shall notify their local responsible Saudi ©Saudi Arabian Oil Company, 2021.Page 23 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Aramco supplier relation office prior to adding any new sub-supplier or material to the list. 5) On-site facility shall hold and maintain the applicable API certifications or equivalent as specified in applicable SAMSS. Table A.1 — Minimum Facility Requirements Model B Model A Manufacturer with Process Activity Manufacturer Manufacturing Licence Agreement Product Design On-site or offsite Technical Partner Product design validation On-site or offsite Technical Partner On-site and/or Technical Material procurement On-site Partner Receiving verification On-site Machining On-site and/or outsourced In-process inspection On-site and/or outsourced Welding and PMI of welding On-site and/or outsourced consumables PMI parts On-site Dimensional Inspection On-site Assembly On-site Pressure and Functional Testing On-site Draining, Drying, Preservation On-site Painting & Coating On-site and/or outsourced Marking On-site Preparation for Shipment On-site Final Inspection On-site ©Saudi Arabian Oil Company, 2021.Page 24 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves Appendix 2 – Oxygen Service Valves A.2.1 General Valves specified for oxygen service shall meet the additional requirements in this Appendix as a minimum. A.2.2 References Material or equipment supplied to this specification shall comply with the latest edition of the references listed below, unless otherwise noted. American Society for Testing and Materials (ASTM) ASTM E2042 Standard Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms ASTM G63 Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service ASTM G93 Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments ASTM G127 Standard Guide for the Selection of Cleaning Agents for Oxygen-Enriched Systems Berufsgenossenschaft Rohstoffe und chemische Industrie Code of practice List of nonmetallic materials compatible with oxygen supporting M 034-1 document to code of practice M 034e “Oxygen” DGUV Information 213-074 (previous BGI 617e) European Industrial Gases Association (EIGA) IGC Doc 13/12 Oxygen Pipeline and Piping Systems IGC Doc 33/18 Cleaning of Equipment for Oxygen Service IGC Doc 200/17 Design, Manufacture, Installation, Operation, and Maintenance of Valves Used in Liquid Oxygen and Cold Gaseous Oxygen Systems International Electrotechnical Commission IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) International Organization for Standardization ISO 15848-2 Industrial valves – Measurement, test and qualification procedures for fugitive emissions – Part 2: Production acceptance test of valves A.2.3 Design a) Valve internals shall be designed with a smooth run. Sharp edges in contact with the flow stream shall be minimised. ©Saudi Arabian Oil Company, 2021.Page 25 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves b) Soft seated designs shall not be used. c) Metal seated valves shall be designed with integral or fully welded body seats and back seats. d) Valves in temperatures above 200°C (392°F) shall be supplied with extended heat dissipation bonnets. The extended bonnet length shall be sufficient to maintain the stem packing temperature at or below 150 °C. e) Pressure boundary penetrations such as sealant, lubricant, drain, and vent connections are not permitted unless otherwise approved by the Buyer’s Representative. f) Valve designs shall be qualified by type testing in accordance with ISO 15848-1, Class B. For production valves, a minimum sample size of 3 % (minimum of 1 valve) of each production lot (defined as, all valves part of the same purchase order and of the same valve type, design, and stem diameter) shall be fugitive emission tested in accordance with ISO 15848-2, Class B. g) Valves shall be anti-static by design. h) Gearbox’s shall be compatible with oxygen service at 65 °C (149 °F) and atmospheric pressure. i) Gearbox’s shall have, as a minimum, IEC 60529 IP 67 protection class. A.2.4 Materials a) All materials shall be compatible and suitable for Oxygen Service for the design conditions. b) Carbon and low alloy steels shall not be used. The minimum acceptable metal in oxygen service is austenitic stainless steel, type 316/316L. c) Only Alloy 6 (ERCoCr‐A or ECoCr‐A with metallurgy equivalent to UNS R30006) or Alloy 6B materials are permitted for hardfacing per EIGA IGC Doc 13/12, Appendix D. d) Non-metallic sealing products shall be compatible with oxygen service for the full design temperature range specified at the maximum rated pressure. e) Graphite materials shall not contain polymeric lubricants or additives. f) Sealing products shall be certified as compatible with oxygen service in their final material composition and form, including additives, per: - code of practice M034-1, Annex 2, Section 1 through Section 5 (inclusive) by Bundesanstalt für Materialforschung und -prüfung (BAM), or, - ISO 21010 (paragraph 4.4.2.2, 4.4.2.3, and 4.4.3) and ASTM G 114 (testing for aging resistance). Other equivalent testing and certification may be proposed for review and approval of the licensor. ©Saudi Arabian Oil Company, 2021.Page 26 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves g) The manufacturer of non-metallic sealing products shall have a unique identification number for each part dedicated solely for oxygen service. Each non-metallic sealing product shall be traceable to a unique production batch. h) The valve manufacture shall ensure the non-metallic sealing product manufacturer has a procedure describing the critical processes, controls, inspections, hold points, and records to demonstrate that parts are manufactured free from grease and oil and suitable for oxygen service. i) The manufacturer of non-metallic sealing products shall have a packaging method that ensures the parts are not contaminated. Each lot of non-metallic sealing products shall be packaged in a hermetically sealed plastic bag. j) All cast pressure containing components shall receive 100% Surface Examination testing and 100% Radiography testing. A.2.5 Assembly, Testing, Inspection, and Examination a) Valve components shall be free from burrs, sharp edges, rust, dirt or any other foreign particulates. b) Casting surface irregularities shall be removed by grinding. c) All surfaces shall be smooth. d) Valves shall be assembled and subject to hydrostatic shell and seat testing per the applicable valve design code. e) After the hydrostatic testing has been completed, the valve shall be fully disassembled. f) Valve components shall be cleaned and free of any contaminants and organic substances (e.g. oil, grease, lubricants, adhesives, preservatives). The permitted cleaning methods are; - alkaline (aqueous) cleaning as per EIGA 33/18 section 6.2.2. Mixtures of sodium hydroxide, sodium carbonates, sodium phosphates, sodium silicates, and synthetic wetting agents are allowed. - vapour degreasing using solvents as per EIGA 33/18 section 6.3.3.3. g) All valve components before assembly and final assembled valves shall be inspected using direct visual inspection with ultraviolet (UV) light as per EIGA 33/18 section 8.1.2. h) The cleaning effectiveness shall be independently validated on an annual basis in accordance with ASTM G127. i) The use of any lubricants on the valve, even for assembly purposes, is not permitted. ©Saudi Arabian Oil Company, 2021.Page 27 of 28 Saudi Aramco: Company General Use  Document Responsibility: Valves Standards Committee 04-SAMSS-035 Issue Date: 16 December 2021 Next Revision: 16 December 2026 General Requirements for Valves j) All packaging materials (e.g., for non-metallic sealing products) shall be inspected prior to use to ensure the packaging is intact and the cleanliness requirements have been maintained. The packaging material shall only be opened in the clean room. k) Final assembly, testing and inspection shall be performed in a clean room. l) Valves shall be subjected to pneumatic (low and high pressure) seat testing, high pressure pneumatic shell testing, and functional testing in the clean room. A.2.6 Marking & Preparation for Shipment a) This section takes precedence over Section 12. b) Valves packaging and preparation for shipment shall take place in the clean room immediately after the final inspection. c) All valves opening shall be sealed with oxygen cleaned plastic protection covers to prevent and protect against contamination. d) No rust preventive oil base additives or equivalent are allowed. e) Each valve (with its operator) shall be packaged separately in a hermetically sealed bag (polyethylene) containing a vapour phase inhibiting sachet with a label stating the following: - “Oxygen Clean Compliance”; - “Free of Oil and Water”; - “Seal Shall Not Be Opened Until Ready for Installation”; and - “Remove Sachets from Valve before Installation”. f) Valves with a gearbox/actuator shall have independently hermetically sealed bags, i.e., one bag for the valve and one bag for the gearbox/actuator which prevents contamination of the valve in the event of lubricant leak from the gearbox/actuator. g) Hermetically sealed bags shall be tear and break resistant suitable for handling, hauling, and storage with environmental temperatures of up to 75°C. ©Saudi Arabian Oil Company, 2021.Page 28 of 28 Saudi Aramco: Company General Use