Specific Gravity is the Ratio of the Density of a Liquid to the density of Water, What is the Specific Gravity of a Gas? auto water shut off valve
3/8 check valve 1 1/2 in check valve 2 way valve Specific Gravity (Relative Density) SG also called relative density that is ratio of the density of a substance to that of a standard substance. At a specified temperature and can be expressed as SG = ρsubstance / ρH2O whereSG = Specific Gravity of the … Read more