PVC is used as a material for plumbing pipes as well as other pipe products. Some applications require customized PVC pipe sizes. To meet this demand, KSK heats industrial PVC boards in an electric oven, and welds the seams to create PVC pipes customized to size, then applies its finishing treatment for the final product. (Note that the color of the welded portion cannot be made the same color as the pipe material)
Since their founding in 1933, KSK has produced spherical floats for air relief valves that are used in plumbing. Until the 1980s, such floats were cut into a spherical shape on a potter’s wheel. Although floats are generally now created using a ball bearings polishing process, the cutting process is still used for customized dimensions and small-lot orders. KSK manufactures floats up to 240 mm in diameter.