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Distinguish between plastic-lined steel pipe and plastic-coated steel pipe

Date:2023-04-21
1. distinction in use:
plastic-lined steel pipes are usually divided into plastic-lined steel pipes for cold water and plastic-lined steel pipes for hot water;
plastic-coated steel pipes are usually divided into plastic-coated steel pipes for water supply and plastic-coated steel pipes for fire protection.

2. material distinction:
plastic-lined steel pipes are distinguished by different lining materials. they are usually divided into polyethylene pe-lined steel pipes and heat-resistant polyethylene pe-rt plastic-lined steel pipes, which are what we usually call plastic-lined steel pipes for cold water and plastic-lined steel pipes for hot water. plastic-lined steel pipe;
plastic-coated steel pipes are distinguished by different coating materials, usually divided into polyethylene pe plastic-coated steel pipes and epoxy resin ep plastic-coated steel pipes.

3. process distinction:
plastic-lined steel pipes are based on hot-dip galvanized steel pipes, and polyethylene-lined pe and heat-resistant polyethylene pe-rt plastics are used as inner linings;
plastic-coated steel pipes are treated with polyethylene pe and epoxy resin ep plastic powder as the coating.
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