“Copper pipework refers to plumbing systems that use copper pipes for transporting water and other fluids. Copper has been a popular choice for pipework due to its excellent properties, including high corrosion resistance, malleability, and thermal conductivity. Copper pipes are commonly used in residential, commercial, and industrial applications for both hot and cold water supply, as well as for heating, cooling, and gas distribution systems.
When it comes to copper pipework, there are two main types of pipes:
Rigid Copper Pipes: These are the traditional copper pipes available in both hard and soft versions. Hard copper pipes are used for outdoor or exposed installations and are more rigid, while soft copper pipes are preferred for indoor installations, as they are more flexible and easier to bend.
Copper Tubes: Copper tubes are seamless pipes that are typically used for high-pressure applications and are often found in HVAC systems, refrigeration, and medical gas installations.
Copper pipes come in different sizes, which are specified based on their outside diameter (OD) and wall thickness. The common sizing standards for copper pipework are:
Copper Type K: These pipes have the thickest walls and are typically used for underground installations, such as main water lines. They are available in sizes ranging from 1/4 inch to 8 inches in diameter.
Copper Type L: Type L copper pipes are commonly used for water supply lines within buildings, both for hot and cold water. They are available in sizes ranging from 1/4 inch to 4 inches in diameter.
Copper Type M: These pipes have thinner walls than Type L and are suitable for residential water distribution systems. They are available in sizes ranging from 1/4 inch to 4 inches in diameter.
Copper DWV (Drain-Waste-Vent) Pipes: These pipes are specifically designed for drainage, waste, and venting purposes. They are available in larger sizes, typically ranging from 1 1/4 inches to 8 inches in diameter.
The selection of the copper pipe size depends on factors like the water flow rate, pressure requirements, and the specific application. The plumber or engineer will choose the appropriate type and size of copper pipe to ensure the plumbing system functions efficiently and meets all the necessary codes and standards.
It’s worth noting that as of my last update in September 2021, copper has been commonly used for pipework. However, materials and building practices might have evolved or changed since then.”