Plastic lined steel pipe is a choice of lining thermoplastic and base with the carbon steel, lined with excellent chemical stability thermoplastics (common varieties PE, PO, PP, PTFE), or by cold drawing Rotational molding compound.
Plastic lined pipe is made in the U S to meet ASTM F1545. This industry specification currently covers plastic lined pipe and plastic lined fittings, which is widely used in petroleum, chemical industry, chemical fiber, chlor-alkali, dyes, pesticides, pharmaceuticals, environmental protection, metallurgy, electric power and other industries medium transport and environmental treatment systems, water works and drainage works.
Plastic lined pipe represents one of the most widely used forms of a composite structure. The mechanical properties and low cost of carbon steel are combined with the chemical resistance of the plastic lining material. The properties of the liner material such as chemical resistance and continuous service temperature can be readily tailored to the specific conditions of the application while still maintaining the use of low cost steel for the mechanical and impact properties. The excellent release properties and non-fouling properties of some plastic materials reduce fouling, the resulting pumping energy losses, and required downtime for clean out. Plastic lined pipe is safer from a mechanical abuse standpoint than self-supported plastic pipe. Self-supported plastic is not permitted in critical applications by some chemical companies for safety reasons. Plastic pipe, either lined or self-supported, results in improved product purity due to the lack of metallic contamination. This is of particular importance for the semiconductor, pharmaceutical, and fine chemical industries.
Post time: Sep-26-2021