Copper Tubing for Plumbing & HVAC
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Copper tubing, also called copper pipe, is commonly used in plumbing, heating, cooling, and other systems. Lightweight copper is antimicrobial, durable, and more resistant to corrosion than other metals. Types K, L, M, and DWV (Drain, Waste, Vent) are designated by ASTM International standard sizes. Each type represents a series of sizes with different wall thicknesses. Copper tubing must be permanently marked in accordance with its governing specifications to show tube type, the name or trademark of the manufacturer, and the country of origin.
Copper Tube Type
Medium-Pressure Type L Copper Tubing for Plumbing
Type L copper tubing has thicker or denser walls to handle greater pressures than Type M tubing. Type L hard tubes are found indoors to supply potable water, carry hot water, and supply water to sprinkler systems. Type L flexible roll tubing is easier to use underground and outdoors, doesn’t need fittings, and eliminates concerns about water wearing tubing down due to high pressure. Medium-pressure applications include plumbing, potable water service and distribution, fire protection, fuel/fuel oil, natural gas, LP gas, HVAC, compressed air, and vacuum. ASTM specifications are permanently marked or incised in blue to distinguish between other copper tube types.
Straight
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Coil
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