Plastic-coated steel pipes for wastewater treatment are composite pipes that combine the strength of steel pipes with the corrosion resistance of plastic. They are widely used in wastewater treatment, water supply, drainage, and other fields.
First, the product characteristics of plastic-coated steel pipes for wastewater treatment:
Corrosion resistance: The plastic coating (such as epoxy resin or polyethylene) effectively isolates chemicals in wastewater, extending the pipe’s lifespan.
Wear resistance and smooth inner wall: Plastic-coated steel pipes reduce fluid resistance, making them suitable for conveying wastewater containing particulate matter and reducing the risk of blockage.
Diverse connection methods: Common connection methods for plastic-coated steel pipes include welding, flanges, and trenching, which must be selected based on the medium and construction environment.
Second, application scenarios of plastic-coated steel pipes for wastewater treatment:
Municipal sewage pipe networks: Resistant to soil acid and alkali corrosion, suitable for underground laying.
Industrial wastewater treatment: Resistant to chemical corrosion, suitable for chemical, pharmaceutical, and other industries.
Existing Pipeline Retrofitting: Can replace cast iron pipes, offering convenient construction and low cost.
Third, Recommendations for Purchasing Plastic-Coated Steel Pipes for Wastewater Treatment:
Coating Standards for Plastic-Coated Steel Pipes: The inner coating thickness of plastic-coated steel pipes should be ≥0.25mm (National Standard GB/T28897-2012), and the outer coating thickness should be ≥0.40mm.
Specification Matching for Plastic-Coated Steel Pipes: Select pipe diameter and wall thickness based on flow rate and pressure. Ordinary grade wall thickness is 3-6mm, while reinforced grade can reach 8-12mm.
Post time: Mar-30-2026