This code denotes the standards for the manufacture and use of cast, forged, and fabricated flanged, threaded, and welding end (and wafer or flangeless valves made of steel, nickel-base alloys, and other alloys) in high-pressure and high-temperature applications, such as boilers and water heaters. It&#;s most often used in new construction, as opposed to existing construction updates.
Who uses it?
Used by valve manufacturers, as well as anyone concerned with the purchase, maintenance, training and safe use of valves within pressure equipment.
What is it for?
ASME B16.34 pertains to:
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- measuring pressure-temperature ratings, dimensions, tolerances
- new construction
- nondestructive examination requirements
- rating materials
- testing
When is it used?
With equipment described in the ASME B16 Series of Standards, as well as with the Boiler and Pressure Vessel Code and other ASME B31 piping codes.
This code applies specifically to valves in heating and cooling power station systems, such as electrical and geothermal power generators. B31.1 is one of the ASME&#;s most-requested codes, as it applies to boiler and pressure vessel systems worldwide. It should be used alongside the ASME&#;s Process Piping Code.
Who uses it?
Used by power piping system manufacturers, designers, operators and owners.
What is it for?
ASME B31.1 specifies the following minimum system requirements for power piping:
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- design
- erection
- examination
- fabrication
- inspection
- maintenance
- materials
- operation
- testing
This standard is for piping systems found in:
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- central and district heating and cooling systems
- electric power generating stations
- geothermal heating systems
- high-temperature, high pressure water boilers
- industrial and institutional plants
- power boilers
When is it used?
As a companion to ASME&#;s B31.3 Code on Process Piping, plus other codes in ASME&#;s B31 series.
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Anyone involved in the manufacture and maintenance of process piping should use this code, including those in the chemical and petroleum refinery industries. It should be used in tandem with the ASME&#;s Power Piping standard. Along with the Power Piping code, B31.1 is one of the ASME&#;s most-requested codes.
Who uses it?
Process piping manufacturers, users, constructors, designers. Also, anyone else concerned with the fabrication, assembly, erection, examination, inspection and testing of process piping.
What is it for?
ASME B31.3 applies to process piping materials and components, design, fabrication, assembly, erection, examination, inspection and testing. Specifically, it applies to piping found in:
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- chemical plants
- cryogenic plants
- paper plants
- petroleum refineries
- pharmaceutical plants
- semiconductor plants
- textile factories
- other processing plants and terminals
Piping in these industries can be for:
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- cryogenic fluids
- fluidized solids
- gas, steam, air and water
- petroleum products
- raw, intermediate and finished chemicals
- refrigerants
When is it used?
Used as a companion to ASME&#;s B31.1 Code on Power Piping, plus other codes in ASME&#;s B31 series.
This code applies to piping systems that transport liquid or nonhazardous aqueous slurries between production facilities and receiving terminals. Nonhazardous aqueous slurries include coal, mineral ores and concentrates.
Who uses it?
Used by liquid pipeline designers, owners, regulators, inspectors and manufacturers.
What is it for?
ASME B31.4 is used in piping systems for:
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- carbon dioxide
- liquid alcohol
- liquid anhydrous ammonia
- liquid petroleum products
- aqueous slurries of nonhazardous materials
The standard also includes requirements for the design, materials, construction, assembly, inspection, testing, operation and maintenance of liquid pipeline systems in:
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- above- or below-ground storage facilities
- ammonia plants
- marine, rail, and truck terminals
- natural gas processing plants
- pump stations
- refineries
- tank farms
When is it used?
In tandem with other ASME B31 standards to comply with operational and safety regulations governing liquid or aqueous slurry piping systems.
This standard applies to any piping system within the gas transport or distribution industry. Updates to these standards also apply to training of operational personnel.
Who uses it?
Gas pipeline manufacturers, users, constructors, designers and operation, maintenance and regulatory personnel.
What is it for?
Piping systems for gas transmission and distribution, including:
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- gas pipelines
- gas compressor stations
- gas metering and regulating stations
- gas mains
- service lines up to the outlet of the customer&#;s meter
- gathering pipelines, including offshore
- gas storage equipment and lines
When is it used?
As a companion to the other ASME B31 codes, B31.8 regulates piping systems materials, design, fabrication, assembly, erection, testing and inspection. These codes help users comply with safety measures and save on operational costs.
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