ASME B16.48

ASME B16.48 – 2020 Edition – Line Blanks

ASME B16.48-2020 is a standard published by the American Society of Mechanical Engineers (ASME) that specifically addresses the design, materials, manufacturing, testing, and inspection requirements for line blanks, also known as blind flanges, used in piping systems.

Here’s an overview of the key aspects covered in ASME B16.48-2020:

1. Scope: The standard outlines the scope of its applicability, specifying the types of line blanks covered, such as those used in pressure classes 150, 300, 400, 600, 900, 1500, and 2500.
2. Design Requirements: ASME B16.48 specifies the design requirements for line blanks, including dimensions, thickness, and configurations, such as raised face or ring-type joint facings.
3. Materials: The standard provides guidance on suitable materials for line blanks, including acceptable grades of carbon steel, stainless steel, alloy steel, and other materials commonly used in piping systems.
4. Manufacturing: ASME B16.48 outlines the manufacturing processes and procedures required to produce line blanks in accordance with the standard’s specifications. This includes requirements for forging, machining, heat treatment, and surface finish.
5. Testing and Inspection: The standard details the testing and inspection requirements for line blanks to ensure they meet specified quality and performance criteria. This may include non-destructive testing (NDT), dimensional inspection, and pressure testing.
6. Marking and Certification: ASME B16.48 specifies the requirements for marking line blanks with essential information such as material grade, pressure class, and manufacturer identification. It also addresses certification documentation that may be required to demonstrate compliance with the standard.

ASME B16.48-2020 is an important reference for manufacturers, engineers, and other stakeholders involved in the design, fabrication, and installation of piping systems that utilize line blanks. Compliance with this standard helps ensure the integrity, safety, and reliability of piping systems in various industrial applications.

General Product Information: