SAES-N-001 PDF – Basic Criteria, Industrial Insulation

This article is about SAES-N-001 which is about Basic Criteria, Industrial Insulation and download SAES-N-001 PDF for Mechanical and Insulation Engineers, supervisors and project managers, Mechanical QCs, Insulation QC Supervisors. This is saudi aramco standards of Heat Transfer Equipment Engineering based on international codes and standards and useful for Mechanical and Insulation Engineering knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.

SAES-N-001 PDF Download

SAES-N-001

Basic Criteria, Industrial Insulation

SAES-N-001 is a standard that outlines the minimum mandatory requirements for the design and installation of industrial insulation. It specifically focuses on industrial insulation systems for piping and equipment. Here are some key points mentioned in the standard:

1. Supplemental Requirements: SAES-N-001 provides additional requirements that complement the Process Industry Practices (PIP) documents referenced in Section 3 of the standard.
2. Applicability to Purchase Orders: This standard can be attached to purchase orders, ensuring that the requirements outlined in SAES-N-001 are followed during the procurement process.
3. Exemption for Oil Flowlines and Pipelines: The standard explicitly states that oil flowlines and pipelines located outside the process plant battery limits are exempt from the requirements specified in SAES-N-001. These pipelines may be subject to different standards or guidelines.

Overall, SAES-N-001 serves as a comprehensive guide for the design and installation of industrial insulation systems in Saudi Aramco facilities, with a specific focus on piping and equipment.

American Society for Testing and Materials for SAES-N-001

The American Society for Testing and Materials (ASTM) standards relevant to SAES-N-001 are:

1. ASTM E84: This standard provides a test method for determining the surface burning characteristics of building materials. It evaluates the flame spread and smoke development of materials when exposed to a controlled fire condition.
2. ASTM E96: This standard offers a test method for measuring the water vapor transmission of materials. It determines the rate at which water vapor passes through a material, which is crucial for assessing the moisture resistance and performance of insulation systems.

These ASTM standards play a significant role in evaluating the properties and performance of materials used in industrial insulation systems, aligning with the requirements of SAES-N-001.

Equipment Insulation Selection Criteria

The equipment insulation selection criteria outlined in SAES-N-001 include the following:

5.1: Insulation should not be installed in certain equipment and applications where its intended use would be compromised. This includes pumps, air-cooled equipment, compressors, steam traps, nameplates, expansion joints, rotating joints, and similar cases.

5.2: Acoustical insulation should be used as required to meet the requirements of SAES-A-105, which pertains to noise control in industrial facilities.

For thermal insulation systems, the following guidelines apply:

6.1 Hot Insulation Systems:

• Wicking or fibrous insulation should not be used beyond the flange-to-pipe welding joint for flanged joints on pipes and equipment that handle heat transfer fluids or asphalt.
• Wicking or fibrous insulation should not be used on tanks and vessels that handle hydrocarbon liquids with operating temperatures above 93°C if spillage or leakage onto the insulation is likely.
• Cellular glass insulation should be used for flanged joints in piping and equipment that handle heat transfer fluids, and it is prohibited to use wicking or fibrous insulation for these applications.
• Cellular glass insulation should be used on tanks and vessels that handle asphalt if spillage or leakage onto the insulation is probable, and the use of wicking or fibrous insulation is prohibited.

6.2 Cold Insulation Systems:

• The use of polyurethane foam, foam-in-place, or spray applications for cold insulation requires a supplementary specification by the contractor, which must be submitted to the Saudi Aramco Engineer for approval.
• Installers of polyurethane foam insulation must have previous commercial experience and provide references to Saudi Aramco before being authorized to work.

These criteria help ensure appropriate insulation selection for different equipment and temperature conditions, taking into account factors such as heat transfer fluids, operating temperatures, and material characteristics.

General Requirements for All Systems

The general requirements for all insulation systems, as specified in SAES-N-001, are as follows:

7.1: Carbon steel in contact with insulation must be coated according to the requirements of SAES-H-001, SAES-H-002, and SAES-H-101.

7.2: Fireproofing must comply with either SAES-B-006 or SAES-B-009, depending on the specific application.

7.3: Design ambient conditions must be in accordance with SAES-A-112.

7.4 Insulation Details:

• Preformed insulation joints should be arranged in a staggered pattern. Multiple layers of insulation should also be staggered at both the longitudinal and circumferential joints, with each layer securely installed.
• Vessels and tanks should be insulated using block, blanket, or foam insulation.
• Removable or flexible insulation should be used in areas where frequent maintenance access is required. The insulation should be bonded to the removable cover.
• All metallic protrusions through insulation systems must be caulked with a sealant.

7.5 Insulation Installation:

• Insulation support rings, pins, clips, studs, and accessories must be made of materials compatible with the components to which they are attached. If welded, they should be installed by the fabricator before post-weld heat treatment unless otherwise permitted by the Saudi Aramco Engineer.
• All equipment, vessels, and piping must be tested and inspected as required by the relevant specifications before insulation installation.
• Nameplates should not be insulated and should be attached with extended brackets to allow sufficient clearance for the full insulation thickness.
• Manufacturers’ instructions and recommendations from insulation and vapor barrier manufacturers should be followed.

7.6 Insulation Materials:

• All non-metallic materials must have a flame-spread index of no greater than 25 when tested according to ASTM E84.
• Insulation containing sodium silicate should not be used over alloys containing molybdenum, such as 316 stainless steel, Hastelloy-X, Inconel 625, operating at temperatures of 815°C or higher.
• Insulation materials must be 100% asbestos-free.

7.7 Insulation Accessories:

7.7.1 Vapor Barrier:

• When metal jackets are not required, vapor barriers must be capable of providing weatherproof protection.
• Plastic coatings should be used on insulating cement finishes to prevent water ingress on non-fireproofed systems.
• A vapor barrier mastic with a water vapor transmission rating not exceeding 1 metric perm should be used to coat insulating cement.
• Vapor barriers must have a water vapor transmission rating of less than 1.6 metric perms per ASTM E96 when tested at 23°C. Fabric reinforcement of elastomeric coatings is required. A metal jacket does not qualify as a vapor barrier.

7.7.2 Weatherproofing:

• Jackets for insulation systems requiring fireproofing should be made of stainless steel, galvanized steel, or aluminized steel.
• Aluminum metal jackets should be used in non-fire hazardous areas within process plant battery limits.
• Elastomeric coatings should be used for weatherproofing plastic foam and cellular glass when metal jackets are not required.
• Corrugated jacketing should not be used to cover cold insulation.

These requirements ensure proper coating, fireproofing, design conditions, installation details, materials, and accessories for insulation systems, promoting effective insulation performance and protection in industrial applications.

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