Types of Copper Pipe
► 1. VENTRAL Copper Pipe Type L - Custom Size and Length 1/2" x 5' - amzn.to/3zJ4EKT
► 2. VENTRAL Copper Pipe Type L - Custom Size and Length 1" x 4' - amzn.to/3zHWWAE
► 3. VENTRAL Copper Pipe Type M - Custom Size and Length 1/2" x 2' - amzn.to/3zm5GLo
► 4. VENTRAL Copper Pipe Type L - Custom Size and Length 3/4" x 1' - amzn.to/3zm5A6u
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Copper pipes have been used as water supply lines in homes for decades, and you’ve probably seen them under your cabinets or overhead in your basement. So, let's begin.
Number 1
Type K Copper Pipe
Of all copper pipe types, Type K has the thickest walls and is the most durable. Pipe wall thickness varies according to the pipe diameter. ½-inch Type K pipe has a wall thickness of .049 inches, while ¾-inch has a thickness of .065 inches. Its thickness also makes Type K the heaviest and most expensive type of copper pipe. You won’t find Type K copper pipes under your sink or connected to other plumbing fixtures; partly because they aren’t as easy to work with as other types of copper but mostly due to the prohibitive cost. Type K’s thickness lends itself to use in commercial plumbing, HVAC, and sprinkler systems but most commonly found in underground water main installations.
Number 2
Type L Copper Pipe
While not quite as thick as Type K, with a wall thickness of .045 inches for a ¾-inch diameter pipe, it is still quite durable and can be used in many more ways. Type L is beefy enough to be used in underground applications but is often used to replace or repair water lines. If a home is known to have water issues like hard water, Type L copper is often the go-to choice because hard water will not wear through the thicker walls as easily as they will through Type M pipe.
Number 3
Type M Copper Pipe
Type M has a wall thickness of .032 inches for a ¾-inch diameter pipe, making it a thinner wall than both Type K and Type L copper. While this might seem like a point for the “cons” list, it really isn’t: There is less copper in Type M copper pipe, making it lighter, less rigid, and easier to work with. Best of all, it costs less than the other copper pipe types!
Number 4
Copper DWV Pipe
The letters DWV stand for drain, waste, and vent-a helpful reminder that DWV pipe is approved for use only in drain and vent lines. As the only copper pipe type not used in water systems, DWV pipe is sort of the “odd man out.” Copper DWV pipe comes in larger diameters than the other types of copper and is distinguished by yellow markings. It also has thinner walls than the other types of copper pipe, with a wall thickness of .040 for a piece of 1¼-inch pipe, the smallest diameter available for DWV. The thin walls on DWV copper pipe can only withstand a maximum pressure rating of 15 psi, hence the narrow range of use.
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