Pressure Test

Process Piping

ASME B31.3 is the definitive process piping code published by the American Society of Mechanical Engineers. It establishes the rules for the design, materials, fabrication, examination, inspection, and testing of piping systems in refineries, chemical, pharmaceutical, and other processing plants. This standard is fundamental to plant engineering worldwide, ensuring that complex piping systems safely contain hazardous fluids and withstand diverse operating conditions.

Power Piping

ASME B31.1 governs the design, materials, fabrication, erection, examination, inspection, testing, operation, and maintenance of power piping — high-pressure, high-temperature systems in electric power generating stations, industrial and institutional plants, geothermal heating, and central heating/cooling. It is one of ASME’s most-referenced codes and is tied directly to the Boiler and Pressure Vessel Code (BPVC), Section I.

Pipeline Transportation Systems for Liquids and Slurries

ASME B31.4 is the primary code published by the American Society of Mechanical Engineers for the design, construction, operation, and maintenance of liquid and slurry pipeline systems. It establishes the foundational safety and engineering requirements for cross-country pipelines transporting crude oil, refined products, and other liquids. This standard is critical for ensuring the safe and reliable long-distance transport of hazardous and non-hazardous liquids while protecting the public and the environment.

Gas Transmission and Distribution Piping Systems

ASME B31.8 is the premier code published by the American Society of Mechanical Engineers for the design, construction, operation, and maintenance of gas transmission and distribution piping systems. It governs the safe transport of natural gas from gathering lines and compressor stations to the end consumer's meter. This standard is vital for public safety, managing the high-energy risks associated with pressurized combustible gases over long distances and through populated areas.

Hydrogen Piping and Pipelines

ASME B31.12 is the dedicated ASME code for piping and pipelines in gaseous and liquid hydrogen service. It layers hydrogen-specific requirements — material qualification against hydrogen embrittlement, tighter fracture control, and additional examination — on top of the familiar B31 pressure-design framework, so that systems carrying a small, leak-prone, embrittling molecule stay safe from production through distribution.

National Board Inspection Code (NB-23)

The National Board Inspection Code (NB-23) is the post-construction code for the installation, inspection, and repair or alteration of pressure-retaining items — boilers, pressure vessels, piping, and pressure-relief devices. Published by the National Board of Boiler and Pressure Vessel Inspectors, it is adopted into law by most US and Canadian jurisdictions and provides the legal framework and the "R" and "VR" stamp programs under which in-service repairs are authorized.

Refrigeration Piping and Heat Transfer Components

ASME B31.5 is the foundational code for the design, materials, fabrication, assembly, erection, testing, and inspection of refrigerant, heat transfer components, and secondary coolant piping for temperatures as low as -320°F (-196°C). It specifically targets systems used in HVAC, commercial, and industrial refrigeration applications.

Building Services Piping

ASME B31.9 provides the design, material, fabrication, installation, inspection, and testing rules for piping systems typically found in commercial, institutional, industrial, and residential buildings. It is designed specifically for "milder" utility services like heating and cooling water, low-pressure steam, and compressed air, offering a more economical and simplified approach compared to heavy-industry codes like B31.1 or B31.3.

Stress Intensification Factors and Flexibility Factors for Metallic Piping Components

Methods and data for determining stress intensification, flexibility, and fatigue-related indices for metallic piping components.

Bioprocessing Equipment

Hygienic design, materials, fabrication, inspection, testing, and certification for bioprocessing equipment and piping.

Rules for Construction of Power Boilers

ASME Section I (Rules for Construction of Power Boilers) is the paramount safety code governing the design, material selection, fabrication, examination, testing, and certification of high-pressure boilers and high-temperature water boilers. Published by the American Society of Mechanical Engineers (ASME) and mandated by legal jurisdictions and the National Board across North America and globally, Section I provides mandatory construction requirements to prevent catastrophic pressure vessel explosions. It governs power generation boilers, heat recovery steam generators (HRSGs), electric boilers, miniature boilers, and solar receiver boilers, as well as establishing the legal boundary for Boiler External Piping (BEP) in coordination with ASME B31.1.