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  2. B16 Standardization of Valves, Flanges, Fittings, and Gaskets

    en.wikipedia.org/wiki/B16_Standardization_of...

    The ASME B16 Standardization of Valves Flanges, Fittings and Gaskets Committee, which operates under ASME’s Board on Pressure Technology Codes and Standards is responsible for standards covering valves, flanges, pipe fittings, gaskets and valve actuators for use in pressure services.

  3. ASME Boiler and Pressure Vessel Code - Wikipedia

    en.wikipedia.org/wiki/ASME_Boiler_and_Pressure...

    The pressure vessels can be either fired or unfired. [17] The pressure may be from external sources, or by the application of heating from an indirect or direct source as a result of a process, or any combination of the two. [18] The rules contained in this section can be used as an alternative to the minimum requirements specified in Division 1.

  4. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Interfaces for class changes; Computer control system; Identification of components and subsystems delivered by others; P&IDs are originally drawn up at the design stage from a combination of process flow sheet data, the mechanical process equipment design, and the instrumentation engineering design.

  5. ANSI device numbers - Wikipedia

    en.wikipedia.org/wiki/ANSI_device_numbers

    In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations .

  6. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding ISO 6520-2: Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 2: Welding with pressure ISO 6947: Welds. Working positions. Definitions of angles of slope and rotation ...

  7. American National Standards Institute - Wikipedia

    en.wikipedia.org/wiki/American_National...

    The ANSI/APSP (Association of Pool & Spa Professionals) standards used for pools, spas, hot tubs, barriers, and suction entrapment avoidance. The ANSI/HI (Hydraulic Institute) standards used for pumps. The ANSI for eye protection is Z87.1, which gives a specific impact resistance rating to the eyewear. This standard is commonly used for shop ...

  8. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    IEEE 315-1975 / ANSI Standard Y32.2. Annex F: "Cross reference list of Class Designation Letters" compares IEC 113-2:1971 to the IEEE/ANSI standard. * AS 1102 and IEC 60617 for "Graphical Symbols for Electrotechnology".

  9. Valve leakage - Wikipedia

    en.wikipedia.org/wiki/Valve_leakage

    Class II valves have no more than 0.5% leakage with 50 psi (340 kPa) (or less if operating pressure is less) of air pressure at the operating temperature Class III valves have no more than 0.1% leakage under those conditions; this may require soft valve seats, or lapped metal surfaces