SAES-L-350 PDF – Construction of Plant Piping

This article is about SAES-L-350 which is about Construction of Plant Piping and download SAES-L-350 PDF for piping and mechanical engineers, supervisors and project managers. This is saudi aramco standard based on international codes and standards and useful for piping and mechanical engineering knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.

SAES-L-350 PDF Download

SAES-L-350

SAES-L-350 Construction of Plant Piping

This standard serves as a supplement to the ASME B31 Codes and outlines additional requirements for the fabrication and installation of metallic plant piping systems, including those located on offshore structures. It covers various aspects related to the construction and installation of piping assemblies.

Furthermore, this standard also applies to piping assemblies associated with cross-country pipelines, such as jumpovers (pipeline crossings), scraper trap facilities, and valve stations. These specific components and facilities within the pipeline system are subject to the requirements and guidelines outlined in this standard.

Materials

According to the standard, the following requirements apply to the materials used in the piping system:

All pipes and fittings must be clearly marked with the material specification and grade. This marking should be permanent and can be done through stamping, stenciling, or any other suitable marking method.

All pipes, fittings, flanges, and gaskets must be procured from approved manufacturers in accordance with SAES-L-101. These components should comply with the relevant Saudi Aramco and industry specifications. To ensure compliance, proper material identifications and certifications should be obtained.

Valves should also be sourced from approved manufacturers in accordance with SAES-L-102, and they must meet the applicable Saudi Aramco and industry specifications.

It is important to note that material substitution is not allowed without prior approval from the Design Agency, SA PMT (Project Management Team), and Inspection agency. If there is a need for material substitution, it should be done in consultation with the CSD (Corporate Supply Department) Material Engineering Specialist.

Storage and Handling

Regarding the storage and handling of materials, the following requirements apply:

Storage:

Pipes should not be stored directly on the ground. Instead, they should be placed on mounds or sleepers to prevent damage.

When stacking pipes, care should be taken to avoid damage to the pipes and their coatings. Refer to SAES-H-200 for guidelines on proper stacking methods.

Fittings and valves should be stored in shipping crates or on racks to protect them from damage.

End protectors on pipes, flanges, weld bevels, threads, and socket ends should be securely attached to prevent any damage during storage.

Stainless steel materials should be protected from exposure to seawater splash during shipment and storage to prevent corrosion.

Handling:

All materials should be handled with care during fabrication and installation to avoid any damage.

Lined and coated pipes and fittings should be lifted using wide fabric or rubber-covered slings. Padding should be used to prevent any damage to the lining or coating. For more detailed guidelines, refer to SAES-H-200.

These requirements aim to ensure that materials are properly stored and handled, minimizing the risk of damage and ensuring their quality and integrity throughout the fabrication and installation processes.

Fabrication For SAES-L-350 PDF Download

The shop fabrication of piping should be carried out in accordance with 01-SAMSS-010. Welding and weld inspection of piping should follow the guidelines provided in SAES-W-011.

Limitations on piping joints and branch connections should adhere to the requirements outlined in SAES-L-110.

If post-weld heat treatment (PWHT) is required for pipe spools (as specified in SAES-W-011), non-pressure containing welded attachments such as shoe support for insulated lines, dummy extensions and legs, and wear pads should be welded to the pipe spools before stress relieving. PWHT of piping spools with flanged joints should be performed before flange assembly.

Orifice flanges should comply with the requirements stated in SAES-J-100. The inside surface of welded joints at orifice flanges should be ground or machined smooth.

If the design drawings call for a spectacle plate, the fabricator should drill a tap and install jack screws for the flanges.

Branch connections and their reinforcement should not cover the girth welds.

Reinforcing pad material should be of the same pipe material unless otherwise approved in writing by the SAPMT (Saudi Aramco Project Management Team). Reinforcing pads should only be installed as specified in the design drawings.