carbon steel pipes coated
SMOOTHFLOW®” 3LPE pipes are carbon steel pipes coated externally and internally with 3 layer polyethylene. The external coating is provided for corrosion resistance, chemical resistance, electrical resistance, and has very low moisture permeability. Internal coating provides low frictional resistance thereby increasing “C” value, it also prevents encrustation. The three coating layers in 3-LPE coated pipe are as follows: Layer 1: This is the corrosion protective layer. This layer is of fusion bonded epoxy which offers very good corrosion protection. The fusion bonded epoxy has a very good bonding with the blasted steel surface.Layer 2: This layer is the copolymer adhesive. The copolymer adhesive is a maleic anhydride grafted polyethylene compound. This material has good chemical bonding to the fusion bonded epoxy and the top layer polyethyleneLayer 3: This layer is for physical protection and consists of polyethylene. Since the copolymer adhesive and polyethylene are similar, they bond well with each other. STANDARDS AND SPECIFICATIONS: “SMOOTHFLOW®” 3LPE pipes are manufactured according the following standards: • DIN 30670• CSA Z245.21 • AS 4321• IS 3581
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