FRP Pipe Line
1.Top 3 brands and annual output manufacturers.
2.Qualified by Korean KS certificate, which is the only one in China.
3.Over 30+ years production experience since 1993.
4.The most advanced continuous winding production machine is used for FRP/GRP fabrication.
5.National level test laboratory to make sure the products performance.
6.50+ years of lifespan, durable products.
FRP Pipe Line
GRP Winding Pipes: The Ultimate Corrosion-Resistant Solution
Superior Performance Through Advanced Technology Our Glass Reinforced Plastic (GRP) pipes are manufactured using Continuous Filament Winding (CFW) technology, delivering unmatched structural strength and corrosion resistance for high-pressure applications. These lightweight yet extremely durable pipes are engineered for easy installation and long-term performance in the most demanding environments.
Key Advantages That Set Us Apart
✓ Unmatched Corrosion Resistance
Eliminates need for protective linings or coatings
Withstands aggressive environments including sewage and seawater
Dramatically reduces maintenance costs
✓ Lightweight & Efficient Installation
75% lighter than DI pipes, 90% lighter than concrete
Standard 12m lengths (extendable to 18m) minimize joints
Reduces transport, handling, and installation costs by up to 40%
✓ Optimal Hydraulic Performance
Ultra-smooth interior surface (Hazen-Williams C=150)
Reduces pumping costs by minimizing friction losses
Resists slime buildup for consistent flow efficiency
✓ Smart Jointing Technology
Flexible elastomeric rubber ring joints
Accommodates minor alignment variations
100% leak-proof design prevents infiltration/exfiltration
✓ Custom Engineering Capabilities
Available in any diameter (DN100-DN4000)
Custom lengths for project-specific requirements
Low wave celerity design absorbs surge pressures
Engineered for Critical Applications • Drinking water distribution • Sewage and wastewater systems • Seawater intake and outfall • Industrial effluent handling • Fire protection networks • Cooling water systems • Irrigation infrastructure
Why Customers Choose Our GRP Pipes ✔ 50+ year design life (exceeds ISO 10639 standards) ✔ 40% better surge pressure absorption vs metal pipes ✔ 30-50% lower lifecycle costs than traditional materials ✔ Full-face elastomeric seals for guaranteed connections ✔ Rehabilitation-friendly for trenchless applications
Technical Superiority Through Innovation Our advanced CFW manufacturing process ensures:
Consistent wall thickness
Precise fiber orientation
Optimal resin distribution
Exceptional hoop strength
The Smarter Pipe Solution With superior hydraulic performance, exceptional durability, and significantly lower total cost of ownership, our GRP pipes deliver lasting value for water infrastructure projects worldwide.
GRAD fiberglass pipe product certification
GRAD is the only manufacturing enterprise in China that has obtained the KS certification for fiberglass reinforced plastic pipes.
About us
Establised in 1993, GRAD Group covers an area of 1.15 million square meters and has more than 2,000 employees, with an annual output value of nearly 4 billion yuan. GRAD Group's main business: central air conditioning chiller and terminal products, FRP water tank, FRP winding pipe, FRP storage tank, wind turbine cabin cover, environmental protection equipment, and other more than 130 varieties. GRAD Group is the pillar enterprise of the “Dezhou Central Air-Conditioning City” named by the China Refrigeration and Air-Conditioning Industry Association. It ranks the top 10 among central air-conditioning enterprises in the country, The top 3 composite material enterprises，and gets the first-class qualification for the installation of national electromechanical equipment and the second-class qualification for air purification engineering. GRAD Group can undertake central air conditioning engineering, purification engineering construction.
