Search results
Results from the WOW.Com Content Network
Due to the availability of standard wall thickness materials, many components will have a MAWP higher than the required design pressure. For pressure vessels, all pressures are defined as being at highest point of the unit in the operating position, and do not include static head pressure. [ 2 ]
The requirements specified within various pressure vessels and piping codes are mostly due to the chemical makeup and thickness of the material. [1] Codes such as ASME Section VIII and ASME B31.3 will require that a specified material be post weld heat treated if it is over a given thickness. [1]
Gaskets are mechanical seals, usually ring-shaped, which seal flange joints. [3] Gaskets vary by construction, materials and features. Commonly used gaskets are non-metallic (ASME B 16.21), spiral-wound (ASME B 16.20) and ring-joint (ASME B 16.20). Non-metallic gaskets are used with flat- or raised-face flanges.
The pipe wall thickness has a variance of approximately 12.5 percent. In the rest of Europe pressure piping uses the same pipe IDs and wall thicknesses as Nominal Pipe Size, but labels them with a metric Diameter Nominal (DN) instead of the imperial NPS. For NPS larger than 14, the DN is equal to the NPS multiplied by 25.
Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
ASME B31.1 Power piping (steam piping etc.) ASME B31.3 Process piping; ASME B31.4 Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids and oil and gas; ASME B31.5 Refrigeration piping and heat transfer components; ASME B31.8 Gas transmission and distribution piping systems; ASME B31.9 Building services piping
Rules for Construction of Heating Boilers ASME BPVC Section V: Nondestructive Examination ASME BPVC Section VIII Rules for Construction of Pressure Vessels Division 1 and Division 2 ASME BPVC Section IX: Welding and Brazing Qualifications ASME B16.25: Buttwelding ends ASME B31.1: Power Piping ASME B31.3: Process Piping ASME B31.9: Building ...
3 Any location that has 46 or more buildings intended for human occupancy or any area where the pipeline lies within 100 yards (91 meters) of a building or a small, well-defined outdoor area (such as a playground, recreation area, outdoor theater, or place of public assembly) that is occupied by 20 or more persons at least five days a week for ...