Section 5 — Piping

Supplemental Requirements

IPE Engineering Practice IPE-EP-5-2-4

Document number: IPE-EP-5-2-4 · Section: 5 — Piping

SCOPE

• This Practice covers supplemental requirements for pipe and the following piping components; welding pipe fittings such as welding elbows and tees, flanges, gaskets, and bolting, and shall be used in conjunction with EP 5–2–1 and EP 5–2–3 to purchase these components. This Practice also covers requirements for fabricated pipe sections (spools) and fired heater coils and shall be used in conjunction with EP 5–5–1 to purchase these items.
• Any deviation from this Practice must be approved by the procedure described in EP 1–1–3.
• An asterisk (*) indicates that a decision by the Owner’s Engineer or Owner is required, or that additional information is furnished by the Purchaser.
• A revision bar indicates all changes made to this Revision.

2.0 REFERENCES

The latest edition of the following standards and publications are referred to herein.

STANDARDS AND PUBLICATIONS

DEFINITIONS

• Certificates of Compliance - A document by which the material manufacturer (or Seller to the extent that the Code allows) certifies that the material represented has been produced and tested in accordance with the requirements of the basic material specification shown on the certificate. Objective evidence of compliance with the requirements of the material specification shall be maintained in the records of the material manufacturer. However, certificates of compliance shall include reports or results of tests required by the material specification or the Order.
• Certified Material Test Report (CMTR) - A document, or documents, on which are recorded the results of tests, examinations, repairs, or treatments required by the Material Specification. Supplementary or special requirements, in addition to the requirements of the Material Specification, as required by the Purchase Order shall also be included on the CMTR. The specification of the material being represented including the year of issue, and the material heat number shall also be included on the CMTR. All such documents shall identify the applicable Material Specification and shall be identified to the material represented.
• Inspector - A Inflection Point Engineering, LLC appointed engineer or inspector.
• Manufacturer - The recipient of a direct or indirect purchase order for materials and/or equipment. In this context, a direct order is one issued to a manufacturer by a contractor or the Owner. An indirect order is one issued to a manufacturer by a vendor (recipient of a direct order) for materials, fabricated components, or subassemblies.
• Owner - Inflection Point Engineering, LLC.
• Owner’s Engineer - A Inflection Point Engineering, LLC appointed engineer.
• Piping Components - Refers to all pipe fittings such as welding elbows, tees, socket weld connections, flanges, gaskets, and bolting.
• Purchase Order - The contractual document given to the Manufacturer to authorize a purchase.
• Purchaser - The party placing a direct purchase order. The purchaser is the Owner’s designated representative.
• Requisition - A requisition is defined as the requisition sheet and all attached and referenced documents.
• Quality Control System - The Manufacturer’s documented system for ensuring that all applicable code requirements for the manufacturing process including material handling and identification, design, fabrication, inspection and testing are followed.

DATA FURNISHED BY THE PURCHASER

• The Purchaser shall provide the following information:
• Procurement documents
• Piping bill of materials
• Applicable IPE Engineering Practices with approved addenda
• Inspection Checklist per EP 15–1–1
• As a minimum, a schedule for receipt of the following information and the required number of copies will be specified by the Purchaser.
• Subvendor names and addresses
• Certified Material Test Reports or Certificates of Compliance
• Welding procedure specifications and procedure qualification records, weld maps, welder or welding operator qualifications tests
• Quality control system
• PMl Report per EP 15–1–4
• NDE procedures, personnel qualification certificates for NDE and required Code reports for NDE.

MANUFACTURER’S RESPONSIBILITY

• General
• The Manufacturer shall assume responsibility for supplying pipe and piping components in accordance with the requirements of the Purchaser.
• The Manufacturer shall provide the information described in Paragraph 4.2. The number of copies and schedule shall conform to the Purchaser’s requirements.
• The Manufacturer shall supply pipe and piping components only from vendors which have been approved by the Purchaser.
• Pipe, pipe fittings, flanges, gaskets and bolting shall be furnished in accordance with the ASTM or ASME material specification specified in the Purchase Order including the specific grade, type, or alloy designation.
• Pipe and pipe fittings shall be furnished in accordance with the requirements of EP 5–2–1. Flanges, gaskets and bolting shall be furnished in accordance with the requirements of EP 5–2–2.
• Conflicting Requirements

The Manufacturer shall refer all conflicting requirements contained in the Purchase Order to the Purchaser in writing for clarification and resolution before proceeding with the manufacture or procurement of the affected part. The Manufacturer is not at liberty to assume which requirements govern.

• Quality Control
• The Manufacturer shall have as a part of his usual business practice an established, routine, and documented Quality Control System. This System shall provide verifiable evidence that the materials, design, fabrication, examination, inspection, and testing of the pipe conform to the specifications and requirements established in the Purchase Order.
• (*)When requested, the Manufacturer shall submit his Quality Control System for review and approval to the Owner’s Engineer.
• Marking
• All pipe and piping components shall be marked in accordance with the standards to which the products are manufactured and any additional markings specified in the Purchase Order. As a minimum, all fittings and flanges shall be marked per MSS SP–25.
• Stamping on all austenitic stainless steel materials shall be with “low–stress” steel stamps having round or “U” shaped cross sections or with “interrupted–dot” die stamps.
• Marking with paint or ink on all austenitic stainless steels shall be with a water insoluble material that contains no harmful substance; e.g., metallic pigments, sulfur, or chlorides, which would damage austenitic stainless steels at ambient or elevated temperatures. The Manufacturer shall submit a chemical analysis and a documented history of use to demonstrate that the marking materials for use on austenitic stainless steels meet the requirements specified herein.
• Pipe and piping components shall be color coded in accordance with EP 15–1–5.
• All package markings shall be in English.
• Packaging and Shipping
• When specified by the Purchaser, the Manufacturer shall be responsible for suitably shielding the open ends of pipe to protect weld or threaded ends from damage during handling and shipment, and to prevent the ingress of moisture and dust during storage.
• The Manufacturer shall be responsible for suitably packaging all piping components so as to protect them from damage during handling and shipment. Pipe and piping components shall not be transported as open above deck cargo without prior written approval of the Purchaser.
• Each length of pipe and all other piping components shall be clear of debris, thoroughly clean inside and out, and free of any dirt and foreign matter before shielding the ends.
• (*)All threaded pipe and piping components shall meet ring and thread gauge requirements as specified by the Purchaser.
• Additional requirements for pipe are:
• (*)Nipples shall be packed in containers. The net weight of each container shall not exceed 200 Ibs. Unless otherwise specified by the Purchaser, nipples made of different materials shall be packed in separate containers.
• (*)When specified by the Purchaser, pipe shall be provided with end protection in accordance with PFI ES-31.

• Additional requirements for pipe fittings are:
• Threaded, socket–weld and weld–end fittings shall be provided with end protection in accordance with PFI ES-31.
• Threaded and socket–weld fittings shall be packed in containers. The net weight of each container shall not exceed 200 Ibs. Unless otherwise specified by the Purchaser, different material types and sizes of fittings shall be packed in separate containers.
• Additional requirements for flanges are:
• Flanges shall be provided with end protection (protection of the gasket surface and weld bevel end) in accordance with PFI ES-31.
• Flanges shall be packed in crates or strapped to pallets.
• Additional requirements for gaskets are:
• The Manufacturer shall be responsible for suitably packaging gaskets to protect them from damage during handling and shipment.
• Unless otherwise specified by the Purchaser, different types of gaskets shall not be packed in the same container.
• The Manufacturer shall include with each shipment a packing list listing the contents by gasket type for each box, crate, bag, and skid. The list shall state whether the contents are complete or partial.
• (*)Gaskets subject to water damage shall be tightly wrapped in waterproof paper and placed in closed containers or shall have equivalent protection, approved in writing by the Owner’s Engineer.
• Additional requirements for bolts are:
• Bolts and nuts shall be cleaned and coated with a corrosion preventive and anti–seize compound as specified in the Purchase Order.
• Nuts shall be shipped assembled on the bolt.
• Finished bolting shall be packed in a suitable container providing adequate protection of threads during shipment.
• Unless otherwise specified by the Purchaser, different material types or sizes of bolting shall be packed in separate containers. The net contents per package shall not exceed 200 Ibs.
• Bolting shall not be transported as open above deck cargo without prior written approval of the Purchaser.
• In addition to the receiving address, each box, crate, or bundle shall be legibly marked with Purchaser’s item number, complete requisition number, quantity contained, and where applicable, the pipe or piping component product specification.
• Additional requirements for export packaging and shipping are covered in EP 14–1–5.

DOCUMENTATION

• (*)Documentation requirements for pipe and piping components are covered in Table 1. Copies of the Quality Control System and NDE procedures and test results are not required unless specified by the Owner’s Engineer.

• All records indicated herein shall be fully identified with the specific materials they represent. All records shall be available for examination by the Inspector at the time and place of inspection, whether at the point of manufacture or distributor’s location. These records shall be kept for five years by the Manufacturer after the pipe has been shipped.
• Unless specified in the Purchase Order, records are not required for pipe fittings, valves, and flanges provided they are made and marked in accordance with an acceptable industry standard (such as ASTM, ASME or ANSI).
• Certified Material Test Reports are required for the following cases:
• When required by the applicable code or material specification.
• When required to verify carbon equivalent requirements for pipe, fittings and flanges, see EP 5–2–1.
• For all materials subject to PMI, see EP 15–1–4.
• For all austenitic stainless steel materials.
• For all incoloy materials.
• When specified in the Purchase Order.
• Certificates of Compliance are permitted in lieu of Certified Material Test Reports for the following cases:
• For bolting material and for pressure and nonpressure part material acquired from stock for which material test reports are not obtainable, except when certification in lieu of material test reports is not permitted by the provisions of the previous paragraph.
• When the markings of materials covered in Paragraph 5.4 are missing or are removed during fabrication, provided certification of the unmarked material is acceptable to the Inspector; to the governing standard, specification, or code; and provided the Manufacturer can furnish evidence that the certification is accurate. The use of a certificate of compliance shall be permitted in this case, only if accompanied by material test reports whose number shall be listed in the certificate.
• When welding is included in the fabrication sequence of piping components or pipe spools, the Manufacturer or any of his subvendors, records and forms shall be handled as follows:
• (*)Welding Procedure Specifications (WPS) and the Procedure Qualification Records (PQR) shall be submitted to and approved by the Owner’s Engineer before fabrication can start.
• Welder/welding operator qualification test results shall be retained by the Manufacturer.
• Radiographic film is to be retained in the fabrication shop for review by the Inspector.
• When the examinations, tests, or operations referred to in the following subparagraphs are included in the fabrication sequence for piping component or pipe spools, the Manufacturer shall retain the following records:
• Written procedures and personnel qualification certificates for all applied nondestructive testing, such as radiographic, ultrasonic, magnetic particle, and liquid penetrant.
• Examination reports for the results of required magnetic particle, liquid penetrant, radiographic, ultrasonic, or other methods of examination; and certified results of all impact tests.

• Charts or other records of required hydrostatic, pneumatic, and other tests. Test logs shall include the date, testing fluid, duration of the test, temperature of the test fluid, test pressure, a description of the fabricated piping tested, a traceable identifying number such as a shop order, and the signature of the manufacturer’s shop inspector witnessing the test.
• Pyrometer charts or other detailed records of heat treatment such as postweld, normalizing, and heating for forming.
• When required by the material specification or supplementary Purchase Order requirement, detailed description of any repair, including a sketch, photo, or drawing indicating the location and size of the repaired area.
• Other material records when specified by the applicable code or the material specification or as required by the Owner’s Engineer.

INSPECTION AND REJECTION

• All Manufacturer facilities, materials, and fabrication work shall be subject to inspection by the Inspector.
• Completed fittings containing defects originating with the Manufacturer’s design, materials, fabrication or workmanship; or not in complete compliance with the requirements of the Purchase Order will be rejected.
• Discovery of Manufacturer defects, after inspection and acceptance of the fittings by the Purchaser, does not relieve the Manufacturer of his responsibility to comply with the requirements of this Practice and the Purchase Order.
• Positive Material Identification (PMI) shall be carried out in accordance with EP 15–1–4.
• The amount of permitted surface rust shall be determined in accordance with the grades specified in ASTM D2200. The acceptance or rejection of pipe or piping components based on these grades, at the destination specified in the Order, shall be as follows:
• Grade A & B - acceptable
• Grade C - acceptable (if not covering more than 25% of surface area)
• Grade D - not acceptable

8.0 TABLES

TABLE 1

DOCUMENTATION REQUIREMENTS

FOR PIPE AND PIPING COMPONENTS PER EP 5–2–4

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