Aquatherm, a manufacturer of polypropylene-random (PP-R) piping, teamed up with Sioux Chief to offer a PP-R to copper sweat fitting. This transition piece now makes it easier to connect Aquatherm to smaller copper branches. They come in 1/2″, 3/4″, and 1″ diameters and range from 11 to 18 inches in length.
Aquatherm utilizes heat fusion to make PP-R to PP-R transitions. Different methods of heat fusion include socket fusion, outlet fusion, butt welding, and electrofusion. PP-R is made from chains of hydrogen and carbon. When two pieces are heated up to 400F and pressure is applied, the molecules from each piece form a solid connection. The video below further illustrates how heat fusion works.
PP-R piping is slowly gaining traction as an alternative to CPVC, steel, and copper pipe. Some advantages include:
– Longevity: PP-R does not react with water so there is no corrosion or rusting
– Low Friction Factors: Save on pumping energy
– No flame needed: The fitting process makes for a safer and faster install
– Cost effective: From a material standpoint, it is 30%-40% cheaper than copper. Closer in price to Steel and CPVC.
PP-R is available in large diameters (Aquatherm offers up to 24″) and I think this is where the product will be most effective as installations become more common in the US.