Best Answer: the rate of diffusion is directly proportional to the concentration gradient. The greater the difference in concentration between two areas, the greater the rate of diffusion.
EPC-40: Electrical Plastic Conduit : Designed for normal duty application. EPC-80: Electrical Plastic Conduit : Designed for heavy duty application.
Galvanized Rigid Steel Conduit (GRC, RMC) is the heaviest weight and thickest wall of electrical conduits. Allied Tube & ConduitÂ®âs Galvanized Rigid Steel Conduit is hot-dip galvanized for corrosion resistance and is considered non-combustible. Galvanized Rigid Steel Conduit (GRC, RMC) can be used indoors, outdoors, underground, concealed or exposed.