NIOEC-SP-50-10(0) DOCUMENT CODE PLAN/PRJ/SUB
UNIT
PHASE
DISCIPLANE
DOCUMENT TYPE
SERIAL NO.
REV. NO.
NO. OF PAGES:7 DATE
NIOEC
000
EG
PI
SP
5010
A0
JULY, 2005
NATIONAL IRANIAN OIL REFINING & DISTRIBUTION COMPANY
NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY
NIOEC SPECIFICATION FOR
PIPING MATERIAL PURCHASE FLANGE AND GASKET
FIRST EDITION JULY, 2005
THIS SPECIFICATION IS THE PROPERTY OF NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY. IT IS CONFIDENTIAL AND ALL RIGHTS RESERVED TO THE OWNER. NEITHER WHOLE NOR ANY PART OF THIS DOCUMENT MAY BE DISCLOSED TO ANY THIRD PARTY, REPRODUCTED, STORED IN ANY RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE PRIOR WRITTEN CONSENT OF THE NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY
JULY, 2005
NIOEC-SP-50-10(0)
REVISION INDEX
NOTES: 1)
THIS SHEET IS A RECORD OF ALL REVISIONS TO THIS SPECIFICATION.
2)
REMARKS RELATED TO EACH REVISION SHOW A BRIEF DESCRIPTION. THESE REMARKS SHALL BE INTERPRETED IN CONJUNCTION WITH THE REVISED TEXT MARKED BY REVISION NUMBERS.
3)
WHEN APPROVED EACH REVISION SHALL BE CONSIDERED AS A PART OF THE ORIGINAL DOCUMENT.
4)
NUMBER OF PAGES EXCLUDES THIS SHEET AND THE COVER SHEET.
JULY, 2005 JULY,2005
A. NAVARCHI
M. KHEZRI
NIOEC-SP-50-10(0) M.R.FARZAM
M.A.A. SAJEDI
JULY, 2005
CONTENTS:
NIOEC-SP-50-10(0) PAGE NO.
0. INTRODUCTION
2
1. SCOPE
2
2. REFERENCES
2
3. UNITS
4
4. DEFINITIONS AND TERMINOLOGY
4
5. ABBREVIATIONS
4
6. MODIFICATION TO IPS-M-PI-150/1
5
JULY, 2005
NIOEC-SP-50-10(0)
0. INTRODUCTION
To satisfy the requirements of this NIOEC Specification, Iranian Petroleum Standard IPSM-PI-150/1 with the modifications as specified herein after shall be strictly followed. Articles 0 through 5 of this document replace entirely the related articles in the referenced IPS Standard. 1. SCOPE
This NIOEC Specification covers minimum requirements for the procurement of steel flanges in sizes ½” through 60” and also orifice flanges. The flanges shall be manufactured according to the following standards: a) Flanges ½” to 24” as per ASME/ANSI B 16.5. b) Flanges 26” to 60” as per ASME B16.47, series A. c) Orifice flanges as per ASME B16.36. d) Copper-Nickel Alloy flanges and stud ends as per EEMUA publication No. 145. e) Metallic Gaskets for Pipe Flanges as per ASME B16.20a . f) Non Metallic Gaskets for Pipe Flanges as per ASME B16.21.
Cast iron and bronze flanges are not covered by this Specification. For flanges in diameters and series greater than limits set by standards ASME B16.5 and ASME B16.47, series A, the Supplier shall submit dimensioned document and calculation notes to the Employer for approval. This Specification isolates the flange material requirements from NIOEC-SP-50-04 hence reducing the need for that Specification to be issued with a flange enquiry or order. 2. REFERENCES
Throughout this Specification the following dated and undated standards/ codes are referred to. These referenced documents shall, to the extent specified herein, form a part of this Specification. For undated references, the latest edition of the referenced document (including any supplements and amendments) applies. For dated references, the edition cited applies. The applicability of changes in dated references that occur after the cited date shall mutually be agreed upon by NIOEC and the Vendor/Contractor. API
ASME
(AMERICAN PETROLEUM INSTITUTE)
API Standard 601
"Metallic Gaskets for Raised-Face Pipe Flanges and Flanged Connections (Double-Jacketed Corrugated and Spiral Wound)"
API Spec. 6A
"Specification for Valves and Wellhead Equipment"
(AMERICAN SOCIETY OF MECHANICAL ENGINEERS)
Section VIII Division1"BPV Code for Pressure Vessel" B 1.20.1
"Pipe Threads, General Purpose"
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NIOEC-SP-50-10(0)
B 16.1
"Cast Iron Pipe Flanges and Flanged Fitting, Class 25, 125, 250, and 800"
B 16.5 B 16.11 B 16.20a B 16.21 B 16.36 B 16.47
"Pipe Flanges and Flanged Fittings" "Forged Steel Fittings, Socket-Welding and Threaded" "Metallic Gaskets for Pipe Flanges" "Non Metallic Gaskets for Pipe Flanges" "Orifice Flanges" "Large Diameter Steel Flanges"
ASTM
(AMERICAN SOCIETY FOR TESTING AND MATERIALS)
A 105
"Specification for Forgings, Carbon Steel, for Piping Components"
A 181
"Specification for Forgings, Carbon Steel, for GeneralPurpose Piping"
A 182
"Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for HighTemperature Services"
A 350
"Specification for Forgings Carbon and Low Alloy Steel, Requiring Notch Toughness Testing for Piping Components"
A 387
"Specification for Pressure Vessel Plates, Alloy Steel Chromium Molybdenum"
A 694
"Specification for Forgings, Carbon and Alloy Steel, for Pipe Flanges, Fittings, Valves, and Parts for HighPressure Transmission Services"
EEMUA (ENGINEERING EQUIPMENT AND MATERIAL USERS ASSOCIATION)
Publication 145-90/10 "Cu-Ni Alloy Specification -FLANGES" IPS
(IRANIAN PETROLEUM STANDARDS)
IPS-M-PI-150 "Material Standard for Flanges and Fitting" IPS-M-TP-750(Part 9) "Specification for Flange Insulation Kit" MSS
(MANUFACTURERS STANDARDIZATION SOCIETY)
SP-6
"Standard Finishes for Contact Faces of Pipe Flanges and Connecting- End Flanges of Valves and Fittings"
JULY, 2005
NIOEC-SP-50-10(0)
NIOEC-SP (NIOEC SPECIFICATIONS)
NIOEC-SP-00-10 NIOEC-SP-50-04 NIOEC-SP-50-27
"NIOEC Specification for Units" "NIOEC Specification for Piping Material" "NIOEC Specification for Identification of Piping Material”
3. UNITS
International system of units (SI) shall be used in accordance with NIOEC-SP-00-10, unless otherwise specified. 4. DEFINITIONS AND TERMINOLOGY 4.1 Contractor: Contractor is the party which carries out all as part of procurements for the project. 4.2 Employer: Means National Iranian Oil Engineering and Construction Company (NIOEC). 4.3 Engineer: The Engineer is a person or a body appointed in writing by the Employer. 4.4 Inspector: The inspector is a person/persons or a body appointed in writing by the Engineer for the inspection and testing. 4.5 Purchaser: means National Iranian Oil Engineering and Construction Company in cases where this specification is part of direct order by NIOEC and Contractor where this specification is part of contract documents. 4.6 Supplier: Party which manufactures or supplies materials. 4.7 Flange Edge The reference plane, coincident with the front of a flange, from which the height of any type of flange facing and also the minimum flange thickness is measured. 4.8 Flange Thickness The distance from the flange edge to the back face of a flange or, if the bolt holes are spot-faced, from the flange edge to the spot-facing. 4.9 Flange Facing The profile of the connecting end of a flange. It is beyond the flange edge, except for a flange of 3/4” (class 150) or 2” (class 300) having a 1.6 mm high raised facing, in which case the raised facing is formed by cutting into the minimum flange thickness. 4.10 Contact Surface That part of a flange facing upon which the gasket is actually compressed. In the case of flanges of 3/4” (class 150) and 2” (class 300) having 1.6 mm high raised facing, and in all nominal pressures (classes) having female and groove facings, the contact surface is coincident with the flange edge as defined above. "Contact Surface" is not applicable to ring-joint facing.
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NIOEC-SP-50-10(0)
4.11 Full-Faced Applies only to female, groove and ring-joint facings and defines the resultant profile when the raised portion of such facing is extended to the full diameter of the flange. 5. ABBREVIATIONS AARH CAF NB PTFE RF RMS RTJ SW
= = = = = = = =
"Arithmetical Average Roughness Height" "Compressed Asbestos Fiber" "Nominal Bore" "Poly Tetra Fluoro Ethylene" "Raised Face" "Root Mean Square" "Ring Type Joint" "Spiral Wound"
6. MODIFICATION TO IPS-M-PI-150/1
This addendum revises the below listed articles of the referenced standard as follows: Article 6- SECTION A : (Correction)
-
“ASME/ANSI B16.15” in the first sentence shall be corrected to “ASME B16.5 ”
-
Article No. “1.4” shall be corrected to “1.10” and “ASME/ANSI B16.5” shall be corrected to “ASME B16.5 ”
Article 4.1.2: Material (Correction)
-
Article No. “4.1.2” shall be corrected to “4.2.2”
Article 4.1.3: Rating class (Correction)
“4.1.3 Rating class” shall be corrected to “4.2.3 Rating Designation” Article 4.1.4 (Correction)
-
Article No. “4.1.4” shall be corrected to “4.2.4”
Article 4.1.8: Thread identification (Correction)
-
Article No. “4.1.8” shall be corrected to “4.2.9” and “ASME/ANSI B1.20” corrected to “ASME B1.20.1”
Article 4.1.9 Omission of marking (Correction)
-
Article No. “4.1.9” shall be corrected to “4.2.10”
Article 5- Material
Article Nos. “5.1.2”and “5.1.3” shall be corrected to“5.1.5” and “5.1.6”.
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Article 5.1.7 to 5.1.9 (Additions)
Add the following paragraphs: 5.1.7 Unless otherwise specified, the straight grades of type 304, 316, 321 and 347 stainless steel shall have a minimum carbon content of 0.04%. 5.1.8 Substitution of material, including wall thicknesses which are heavier than specified, is not permitted without prior NIOEC approval. Article 5.1.9: Substitutions 5.1.9.1 Permissible substitutions, subject to prior Employer’s approval. 5.1.9.1.1 Type 316 stainless steel flanges in place of Type 304. 5.1.9.1.2 Type 304L stainless steel flanges in place of Type 304, provided that the minimum tensile and yield strength is equal to or greater than that specified for Type 304 (at temperature of intended service). 5.1.9.1.3 Type 316L stainless steel flanges in place of Type 316, provided that the minimum tensile and yield strength is equal to or greater than that specified for Type 316 (at temperature of intended service). Article 5.3.4 (Correction)
-
Article No. “5.3.4” shall be corrected to “5.3.5”
Article 5.4.5 (Deletion)
-
Article “5.4.5” and “Data Sheet” (Page 11) shall be Deleted:
Article 11 to 13 (Additions)
Add the following paragraphs: 11. REPORTS 11.1 The following applies to alloy or stainless steel flanges specified as ASTM in the item descriptions: The supplier shall furnish certification of compliance with the referenced ASTM specification. The certification shall include NIOEC Purchase Order number and shall be signed by the Supplier's authorized personnel. 11.2 The following applies to all flanges specified as ASME in the item descriptions:
The Supplier shall furnish certification of compliance with the referenced ASME specification. The documents shall include the Purchase Order number and item code number and shall be signed by the Supplier's authorized personnel.
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12. PROTECTION 12.1 Carbon steel, carbon moly and chrome moly flanges shall be coated with RustBan 214*, a transparent hard film coating. The coating shall not be detrimental to welding. 12.2 All austenitic stainless steel flanges shall be protected from exposure to salt water or salt spray during shipment or storage.
* Rust-Ban is a product of the Humble Oil and Refining Company. Comparable coatings such as Shell Petroleum Company "Ensis" products are acceptable. 13. COLOR CODING 13.1 Color coding shall be in accordance with NIOEC-SP-50-27. Article 7- SECTION B: (Modification)
The whole paragraphs of article shall be deleted and add the following sentence: This section is referred to ASME B16.47, series A. Article 8- SECTION C: (Correction)
ASME/ANSI B16.36 (1988) in the first sentence shall be corrected to “ASME B16.36”.
