Composite Pipes
Composite Pipes include GRE pipes, FRP pipes, RTP pipes, fiberglass line pipes, GRE screen tubes, fiberglass tubing and FRP marine pipes for oil, gas, water treatment, chemical processing, marine and industrial fluid transportation. These non-metallic pipeline products are lightweight, corrosion-resistant and suitable for demanding operating environments where long service life and reduced maintenance are required.
CNPS is a leading custom compostie pipes manufacturer in China, we offer RTP pipe and matched pipe fittings for oil, gas, and industrial transportation. Select sizes, pressure classes, and connection options to meet your project’s route, fluid, and temperature.
CNPS is a leading custom compostie pipes manufacturer in China, we offer RTP pipe and matched pipe fittings for oil, gas, and industrial transportation. Select sizes, pressure classes, and connection options to meet your project’s route, fluid, and temperature.
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Marine-offshore pipes wound from high-strength glass fiber and carbon fiber with epoxy resin — fire-proof, anti-static and corrosion-resistant. Designed in line with CCS rules and IMO Resolution A.753(18).
Pultruded and filament-wound fiberglass tubing resisting 200+ chemicals (ISO/TR 10358), 4× lighter than schedule-40 steel, 100% hydro-tested. DN25/DN50/DN100 in 10-meter sticks, 10–40 bar.
GRE composite screens with laser-cut slots (0.15–0.50 mm) deliver 40% better collapse resistance than API 5CT steel, 35% less weight, and an inert matrix that resists CO₂, H₂S and produced water.
CNPS API 17J RTP pipe is positioned for offshore spoolable reinforced plastic pipe service. Detailed specifications, ratings and documentation for this product line are being finalized — contact our engineers.
Spoolable reinforced plastic line pipe engineered on API 15S-2022 with four reinforcement series (polyester, aramid, glass fiber, steel cord). Spoolable DN17–200 mm at 2.5–32 MPa; large diameter DN250–500 mm at 1.6–6.4 MPa.
RTP pipe is a three-layer reinforced thermoplastic composite pipe: HDPE liner, glass/aramid/steel-wire reinforcement and outer jacket. Up to 32 MPa, −40 to 110 °C, 1-km reels, 70% lighter than steel, leak points cut by 80%.
Low-pressure GRP line pipe wound from glass fiber and thermosetting resin (UPR or epoxy), designed on API Spec 15LR-2001. DN50–DN2000 at 0–6.9 MPa for oilfield, chemical, municipal and water-conservancy duty.
High-pressure GRE line pipe designed on API Spec 15HR-2016: DN40–DN900 at 3.45–34.5 MPa, acid anhydride (≤ 65.5 °C) and amine epoxy (≤ 93.3 °C) systems, plus GRE tubing, casing and injection strings.
CNPS FRP pipes combine glass fiber with corrosion-resistant resin: 80% lighter than carbon steel, 25–1200 mm custom diameters, 50–450 psi, continuous service to 93.3 °C. Engineered to ISO 14692 and ASTM D2996.
FRP-clad pipe is a composite pipe structure consisting of an inner layer and an outer layer. The inner layer is typically made of materials such as steel or plastic, providing structural strength, while the outer layer is composed of fiberglass reinforced plastic (FRP), offering chemical resistance and corrosion protection.
This type of pipe is frequently used in industrial and commercial applications, including chemical and petrochemical plants, water treatment facilities, and wastewater systems, where corrosion resistance is a key requirement. The FRP outer layer helps shield the inner material from exposure to a range of chemicals, acids, and salts, making the pipe suitable for demanding operational environments.
Among the notable characteristics of FRP clad pipes are their corrosion-resistant performance, which supports use in challenging conditions with various liquids and gases. Additionally, these pipes are relatively lightweight, simplify installation, and are designed for extended service life. They can also be produced with specific functional properties, such as electrical conductivity or flame resistance, depending on application needs.
Email: sales@cnps.com
Phone/Whatsapp: +86 18354639099
Tel: +86 4000880546
Address: No.336, Yunhe Road, Dongying City, Shandong Province, China