Copper Pipe

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Copper Pipe Grades/Type

Copper pipes are available in different grades or types, each with unique properties that make them suitable for different applications. Here are some of the most common copper pipe grades:

  • Type M: Type M copper pipes are the thinnest and most affordable type of copper piping. They are commonly used for low-pressure applications, such as domestic water supply lines, but are not suitable for underground installation.
  • Type L: Type L copper pipes are thicker and more durable than Type M pipes, making them suitable for higher-pressure applications. They are commonly used for water supply lines and heating systems.
  • Type K: Type K copper pipes are the thickest and most durable type of copper piping. They are commonly used in commercial and industrial applications where high pressure and large pipe sizes are required.
  • ACR copper: ACR (Air Conditioning and Refrigeration) copper pipes are used for refrigerant lines in air conditioning and refrigeration systems. These pipes are specifically designed to handle the high pressures and corrosive properties of refrigerants.
  • In addition to these grades, copper pipes are also available in various tempers or hardness levels, which can affect their flexibility and ease of bending. The most common tempers are soft (annealed) and hard (drawn), with soft copper being more malleable and easier to work with, while hard copper is more rigid and better for applications requiring strength and durability.
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Copper Pipe Specification

  • ASTM B88: This is the standard specification for a seamless copper water tube, which covers copper pipes used for hot and cold water supply systems, as well as heating systems.
  • ASTM B280: This specification covers seamless copper tubes for air conditioning and refrigeration systems.
  • ASTM B837: This specification covers welded copper tubes for air conditioning and refrigeration systems.
  • ASTM B306: This specification covers copper drainage tubes (DWV – Drain, Waste, and Vent) used for the removal of wastewater and sewage.
  • ASTM B819: This specification covers seamless copper tubes for medical gas systems.
  • EN 1057: This is the European standard for copper and copper alloy plumbing tubes, which covers copper pipes used for hot and cold water supply systems and heating systems.
  • In addition to these specifications, copper pipes may also be certified to comply with other standards and codes, such as NSF/ANSI 61 for drinking water safety or ASME B31.1 for power piping.
  • When selecting copper pipes, it is important to consult the appropriate specifications to ensure that the pipes meet the requirements for the intended application. This includes considerations such as size, wall thickness, temper, and pressure rating.
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