Overview of AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe

The AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe is a high-performance steel pipe used in water transmission, oil & gas pipelines, and industrial applications. The three-layer polyethylene (3LPE) and three-layer polypropylene (3LPP) coatings provide superior corrosion resistance, mechanical protection, and long-term durability, making them ideal for buried pipelines, marine environments, and high-pressure systems.

Key Features of AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe

✔ Spiral Submerged Arc Welded (SSAW) steel pipe
✔ AWWA C214-compliant 3LPE or 3LPP coating
✔ High resistance to corrosion, impact, and soil stress
✔ Available in diameters ranging from 6 inches to 144 inches (150mm to 3658mm)
✔ Complies with AWWA C214, API 5L, ASTM A252, and GB/T9711 standards
✔ Ideal for underground pipelines, water transmission, and oil & gas applications

This guide will cover manufacturing processes, applications, price trends, suppliers, and quality standards for AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes.

Top AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe Manufacturers in 2025

Choosing a reliable manufacturer ensures high-quality materials, precise coating application, and compliance with AWWA standards. Here are some of the leading AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe manufacturers:

1. Cangzhou Spiral Steel Pipes Group Co., Ltd

✔ 27 years of experience in steel pipe manufacturing
✔ 13 production lines for Φ219–Φ3500mm spiral welded pipes
✔ Annual production capacity: 400,000 tons
✔ ISO 9001, API 5L, ASTM-certified AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes
✔ Custom 3LPE/3LPP coatings for water, oil & gas, and industrial pipelines

2. Northwest Pipe Company (USA)

A leading water transmission pipe manufacturer, specializing in AWWA C214 and C200 spiral welded pipes.

3. American SpiralWeld Pipe Company (USA)

Produces large-diameter spiral welded pipes for municipal water and wastewater projects.

4. Jindal SAW Ltd (India)

Provides high-performance spiral pipes with 3LPE/3LPP coatings for water transmission and industrial applications.

5. Nippon Steel (Japan)

A global leader in high-strength, corrosion-resistant spiral welded pipes for marine, water, and industrial applications.

Each of these manufacturers ensures strict compliance with AWWA C214 standards, guaranteeing high durability and corrosion resistance.

AWWA C214 3LPE vs 3LPP Coated Spiral Weld Pipes

Selecting the right coating type depends on application, cost, and durability. Below is a comparison between AWWA C214 3LPE and 3LPP Coated Spiral Weld Pipes:

Feature	AWWA C214 3LPE Coated Pipe	AWWA C214 3LPP Coated Pipe
Coating Type	Three-layer Polyethylene (3LPE)	Three-layer Polypropylene (3LPP)
Corrosion Resistance	Very High	Very High
Mechanical Protection	High	Extremely High
Best Use Case	Underground pipelines, water transmission	High-temperature pipelines, offshore applications
Lifespan	50+ years	50+ years
Temperature Resistance	Up to 85°C	Up to 110°C
Cost	Moderate	Slightly higher

Why Choose AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe?

✔ Superior corrosion and soil stress resistance
✔ Long service life in underground and marine environments
✔ Ideal for high-pressure and high-temperature applications
✔ Cost-effective compared to alternative coatings

AWWA C214 Spiral Weld Pipe Price Per Ton in 2025

The price of AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes varies based on factors such as pipe diameter, wall thickness, steel grade, and coating thickness. Below is an estimated pricing chart for 2025:

Wall Thickness (mm)	Steel Grade	Price Per Ton (USD)
6 – 10 mm	API 5L X42 – X65	4,500−4,500 – 4,500−6,500
12 – 18 mm	API 5L X65 – X70	5,800−5,800 – 5,800−7,800
20 – 40 mm	API 5L X70 – X80	7,000−7,000 – 7,000−10,000

Factors Affecting Price:

✔ Pipe Diameter & Wall Thickness – Larger and thicker pipes require more material.
✔ Coating Type – 3LPE and 3LPP coatings vary in cost based on thickness.
✔ Bulk Orders – Large quantity orders receive better pricing.

Cangzhou Spiral Steel Pipes Group offers high-quality AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes at competitive prices.

AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe Manufacturing Process & Quality Control

How Are AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes Manufactured?

The manufacturing process of AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes follows strict AWWA, API 5L, ASTM A252, and GB/T9711 standards to ensure high durability, corrosion resistance, and mechanical protection. Below is a step-by-step breakdown of the production process:

1. Raw Material Selection

• High-quality steel coils (API 5L, ASTM A252, GB/T9711) are carefully selected to meet chemical and mechanical composition requirements.
• The steel undergoes chemical and mechanical testing to verify yield strength, tensile strength, and impact resistance.

2. Pipe Forming & Spiral Welding

• The steel plates are rolled into a spiral shape using advanced forming machines.
• The edges are submerged arc welded (SAW) using double-sided automatic welding to ensure defect-free, high-strength weld seams.
• This welding process ensures full penetration and structural stability, making it ideal for water transmission, oil & gas, and industrial applications.

3. Hydrostatic Pressure Testing

• Each pipe undergoes high-pressure hydrostatic testing to verify leak-proof and structural reliability.

4. Ultrasonic & Radiographic Testing

• Non-destructive testing (NDT) is performed to detect internal or external defects in the weld seam.
• Ultrasonic, X-ray, and magnetic particle testing are conducted based on pipe grade and project requirements.

5. Surface Preparation

• The pipe surface is thoroughly cleaned by sandblasting or shot blasting to remove rust, scale, and contaminants.
• Proper surface preparation ensures better adhesion of the 3LPE/3LPP coating.

6. 3LPE/3LPP Coating Application

• Layer 1 (Fusion Bonded Epoxy – FBE): A layer of fusion bonded epoxy (FBE) is applied electrostatically to provide corrosion resistance.
• Layer 2 (Adhesive Layer): A thermosetting adhesive layer is applied to ensure strong bonding between the epoxy and outer polyethylene/polypropylene layer.
• Layer 3 (Polyethylene/Polypropylene Layer): A polyethylene (3LPE) or polypropylene (3LPP) outer layer is applied to provide mechanical protection against impact, soil stress, and weather conditions.
• Thickness Control: The coating thickness is measured to meet AWWA C214 standards.

7. Beveling & Cutting

• Pipes are cut into required lengths using automated machinery.
• The pipe ends are beveled for easy welding and connection.

8. Final Inspection & Packaging

• Pipes are marked, inspected, and bundled according to customer requirements.
• Each pipe is labeled with batch numbers, specifications, and manufacturer details for full traceability.

Why AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes Are Preferred?

✔ Designed for high-pressure water and oil & gas pipeline systems
✔ Manufactured with advanced welding and coating processes
✔ High resistance to corrosion, abrasion, and environmental stress
✔ Long-lasting performance in buried and marine environments

Cangzhou Spiral Steel Pipes Group Co., Ltd follows strict quality control procedures to ensure high-performance AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes.

AWWA C214 3LPE/3LPP Coated Spiral Weld Pipe Applications & Industry Uses

Where Are AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes Used?

AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes are widely used in municipal water infrastructure, oil & gas pipelines, industrial projects, and marine environments.

Industry	Application	Why AWWA C214 Spiral Weld Pipe?
Water Transmission	Municipal water supply, potable water pipelines	Leak-proof, corrosion-resistant, and long service life
Wastewater Systems	Sewage treatment plants, drainage pipelines	High-strength, durable, and resistant to chemical exposure
Industrial Pipelines	Power plants, chemical processing, and desalination plants	Handles high pressures and corrosive environments
Oil & Gas	Crude oil, natural gas transmission pipelines	Superior chemical resistance and long lifespan
Marine & Offshore	Coastal water transmission systems, offshore desalination plants	Resistant to seawater and extreme marine conditions

Why AWWA C214 Spiral Weld Pipes Are Ideal for Underground & Marine Applications?

✔ High resistance to chemical corrosion and environmental exposure
✔ Available in large diameters for municipal and industrial projects
✔ Cost-effective solution for long-distance transmission pipelines

Cangzhou Spiral Steel Pipes Group supplies customized AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes for municipal water supply, oil & gas pipelines, industrial applications, and marine projects.

AWWA C214 Spiral Weld Pipe Coating & Anti-Corrosion Treatment

To ensure long-lasting performance, AWWA C214 Spiral Weld Pipes can be coated with various anti-corrosion treatments.

Coating Type	Corrosion Resistance	Best Applications
3LPE Coating (AWWA C214)	Very High	Underground pipelines, water transmission
3LPP Coating (AWWA C214)	Very High	High-temperature applications, offshore pipelines
FBE (Fusion Bonded Epoxy) Coating	High	Municipal water supply, structural applications
AWWA C210 Epoxy Coating	Very High	Water, oil & gas, and industrial pipelines

Why 3LPE/3LPP Coating is Essential for AWWA C214 Spiral Weld Pipes?

✔ Prevents corrosion in buried and marine environments
✔ Reduces maintenance costs and extends service life
✔ Enhances resistance against chemicals, soil, and extreme temperatures

Cangzhou Spiral Steel Pipes Group provides custom coating services to meet industry-specific requirements.

Final Thoughts

For high-quality AWWA C214 3LPE/3LPP Coated Spiral Weld Pipes, Cangzhou Spiral Steel Pipes Group Co., Ltd is your best choice in 2025!

Need a quote or more technical details? Contact Cangzhou Spiral Steel Pipes Group today!