Plastic Coated Water Supply Pipes
Tianjin Juming Steel Pipe Co., Ltd. specializes in manufacturing plastic coated water supply pipes (steel-plastic composite pipes). These pipes are made from high-quality Q235B welded steel pipes or seamless steel pipes as the base material. Through processes such as sandblasting, preheating, electrostatic powder spraying, and high-temperature curing, the inner and outer walls are coated with food-grade epoxy (EP) or modified polyethylene (PE) powder.
This high-performance composite pipe combines the strength of steel with the corrosion resistance, hygiene, and smoothness of plastic. It is widely used in municipal, construction, industrial, and overseas water supply systems, meeting international export standards and serving global markets.
Key Specifications
Base Material:Q235B / 20# seamless steel pipe
Coating Type:Internal & external EP epoxy / PE polyethylene
Nominal Diameter:DN15–DN2000
Standard Length:6m / 12m (customizable)
Working Pressure:PN1.0 / 1.6 / 2.5 MPa
Temperature Range:-30°C to 120°C
Colors:Blue, white, gray, red, black, green (customizable)
Standards:GB / ASTM A53 / AWWA C210
Certification:Compliant with drinking water safety standards
Product Advantages
Safe and Non-Toxic
Food-grade coating with no heavy metal precipitation. No scaling or bacterial growth, suitable for potable water systems.
Excellent Corrosion Resistance
Resistant to acid, alkali, salt spray, and soil corrosion. Ideal for underground and coastal environments, service life up to 50 years.
Efficient Water Flow
Smooth inner surface reduces resistance, lowers energy consumption, and improves flow capacity.
Strong and Durable
Steel base provides high strength, excellent pressure resistance, and impact resistance, preventing deformation during installation.
Easy Installation
Supports threaded, grooved, flange, and welding connections for efficient construction.
Application Areas
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Municipal Projects: Urban water supply pipelines, residential networks, buried pipelines
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Construction Projects: High-rise buildings, commercial buildings, hospitals, schools (hot and cold water systems)
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Industrial Systems: Chemical, power, metallurgy, purified water, circulating water, corrosive media
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Overseas Projects: Seawater desalination, desert water transport, ports, shipbuilding, mining drainage systems
Project Case: Municipal Water Supply Project in Southeast Asia
Project Overview:In 2025, we supplied over 800 tons of DN800 internal and external epoxy coated pipes for a municipal water network upgrade project in a Southeast Asian city.
Project Requirements:Withstand coastal high-salt environments, stable pressure, meet hygiene standards, prevent secondary pollution, reduce leakage rates.
Results:No leakage or corrosion. No scaling, intact coating. Leakage rate reduced from 22% to below 5%. Passed inspection and achieved long-term cooperation.
Our Strengths
✅ Tianjin-based factory with direct manufacturing and competitive pricing
✅ Standardized production lines with stable capacity and on-time delivery
✅ Customization for diameter, length, coating, and color
✅ Full export documentation support (SGS, BV, Certificate of Origin, etc.)
✅ Professional export team with one-on-one service and reliable after-sales
✅ Free samples available (freight collected)
Packaging and Delivery
Packaging: Pipe end caps + woven wrapping / steel strip reinforcement, suitable for container shipping
Port: Tianjin Port (other ports available upon request)
MOQ: Flexible, small trial orders and mixed container shipments supported
Lead Time: 5–10 days for standard specifications
Order Information
Please provide: diameter, length, coating type, and quantity
Free samples available (freight collected)
Payment terms: T/T, L/C, etc.
Project orders welcome with competitive pricing
Tianjin Juming Steel Pipe Co., Ltd.
Integrity First · Quality Above All
We warmly welcome customers from around the world to contact us for inquiries, orders, and factory visits.
