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30+ Year Factory Ccgrp Pipe for Irrigation and Raw Water Supply1
Plastic PolymerCcgrp PipeIrrigation Pipe
Zhejiang Eastern Dfhb Pipes Co., Ltd.
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Product DescriptionProduct DescriptionCentrifugally Cast Glass Fiber Reinforced Plastic Pipes (GRP Pipes)Centrifugally cast glass fiber reinforced plastic GRP pipes are glass fiber reinforced plastic pipes manufactured using the centrifugal casting process.The centrifugal casting process refers to a method where raw materials such as unsaturated polyester resin, glass fiber, and quartz sand are cast into a high-speed rotating mold under computer control by a feeder according to the formula design requirements.After curing, GRP pipes are produced.Material-Constant(All Values refer to structural Iaminate without liner)UnitOrientationCircumf.LongitudinalDensityKg/m21800-2100Coeff. Of linear thermal expansion1/K26-30x10-6Tensile E-modulus at 23°CMPa10000-1500010000-12000Tensile strengthMPa90-21015-40Tensile strain at break: ≥PN 10 < PN 10%1.2-1.51.0-1.4≥0.25Poisson's ratio----0.3-0.25Compressive modulus at 23°CMPa9000-120009000-12000Compressive strengthMPa130-140150-160Compressive strain at break%1.5-2.01.8-2.5Apparent flexural modulusMPa8000-15000---Flexural strengthMPa120-14050-60Flexural strain at break (extreme fiber)%1.6-2.2---Circumferential strain at PN%0.1-0.25---Circumferential strain at 1.5PN%0.25-0.4---Temperature resistance°C≤35°C (temperature up to 80°C on request)Chemicial resistance (PH range)PH1-12 (higher / lower PH values on request)Thermal conductivityW/m/k1.5-2.1Company ProfileZhejiang Eastern DFHB Pipes Co., Ltd., founded in 1993 (formerly Zhejiang Eastern Group Pipes Company, renamed after 2004 restructuring), is a national high-tech enterprise specializing in centrifugally cast glass fiber reinforced plastic (GRP) pipes, and a director unit of China Composite Materials Association and China Urban Association. Our flagship product, DFHB? centrifugally cast GRP pipes (DN300~DN3000), boasts dense walls, high strength, light weight, excellent corrosion resistance, and long service life. Widely used in municipal water supply/drainage, chemical sewage, seawater transport, irrigation, and flood control, they support diverse installation methods (open-trench, pipe jacking, lining, above-ground) – with 30+ years of successful use in China. Equipped with full production and testing facilities, we produce over 500 km of pipes annually. Our R&D center has developed trenchless technologies (listed as key projects by the Ministry of Construction) with multiple patents and intellectual property rights. Committed to quality, we have participated in formulating 20+ national and industrial standards, and hold certifications including ISO9001, BV , Korean KS , national high-tech enterprise , and Zhejiang "Pin" Mark . DFHB? pipes are used in 20+ Chinese provinces and regions (including Hong Kong ) and exported to 10+ countries (South Korea, Japan, U.S., Australia, etc.), with cumulative installation exceeding 6,000 km – earning wide recognition from users. Adhering to the tenet of "people-oriented, quality-integrity, customer-first" and mission of protecting water resources, DFHB aims to be a leading global GRP pipe supplier, delivering superior products worldwide.
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