The Lubrizol Online Design Calculator Tool and an Expansion Loop Calculator, available via desktop or mobile, aid in the design of Corzan and FlowGuard Gold piping systems for water supply applications. For the Design Calculator, input the parameters of the system to determine the allowable friction loss, velocity, demand flow rate and the number of supported fixtures. The Expansion Loop Calculator requires users input change in temperature, pipe size and length of run to determine the size and number of expansion loops required to accommodate the expansion, contraction of commercial systems, the linear expansion, the dimensions of the loop, offset and change in direction. Lubrizol. www.lubrizol.com