Fiberglass Reinforced Plastic (FRP) Sand-filled Pipe

Mechanical缠绕 fiberglass pipe is a lightweight, corrosion-resistant non-metallic pipeline. It is made by a resin matrix reinforced with glass fibers through a special process. This pipeline boasts corrosion resistance, leakage prevention, insulation properties, and more, including its lightweight nature, long service life, high design flexibility, low fluid resistance, ease of installation, and cost-effectiveness. It is widely used in industries such as oil, chemicals, power, papermaking, urban water supply and drainage, factory wastewater treatment, gas transmission, and mining. It is an ideal pipeline for transporting liquids and gases. In recent years, the production of fiberglass pipes in our country has developed rapidly, with quantities increasing year by year and its application scope and departments expanding.

2. Connecting Components: Push-fit, socket-type, flanged, O-ring bend pipes, T-pipes, reducers, flat welding flanges, etc. 3. Fiberglass Pipe Classification: Mainly divided into the following categories according to manufacturing processes: Pure fiberglass pipes, sand-filled pipes, high-pressure pipes, insulated pipes. According to application fields, they mainly include: oil pipelines, chemical industry pipelines, power pipelines, paper pulp, urban water supply and drainage pipelines, industrial wastewater pipelines, gas transmission pipelines, and natural gas transmission pipelines, etc.

Four, Fiber-Wrapped GRP Sand Pipe - The fiber-wrapped GRP sand pipe is reliable, primarily used for buried pipelines and long-distance transmission lines. It features lightweight, corrosion-resistant, long service life, and low operation and maintenance costs, which can save a significant amount of funds for construction projects.

V. Features 1. Lightweight: The specific gravity of the glass fiber reinforced plastic (GFRP) sand-filled pipes is 1.65~2.0. For units of the same diameter, the weight per unit length is only 1/3 of carbon steel, 1/5 of FRP pipes compared to cast iron pipes, and 1/10 of prestressed concrete pipes. This reduces lifting costs during construction and increases installation speed. 2. Excellent hydraulic properties: This characteristic is particularly prominent in the field of water supply and drainage. (1) It can save pumping costs for the pipeline network. (2) It can reduce pipe diameter sizes. (3) It shortens pumping times. (4) The FRP pipes do not scale over time, eliminating the need for cleaning, thus preventing secondary water contamination. 3. Good resistance to water and corrosion: GFRP sand-filled pipes have excellent corrosion resistance, reducing anticorrosion costs and extending service life. Additionally, since they do not rust, they ensure that the water quality remains unaffected by secondary contamination. They can also be used to transport wastewater, sludge, seawater, and other media. 4. High pressure resistance: Designed and manufactured in accordance with the required pressure, pipes and fittings are tested under a hydrostatic test pressure of 1.5 times the process requirement. 5. Good interface sealing: The joints are leak-proof, non-fracturable, enhancing the reliability of water supply.

Six. Applications ◆ Main water supply pipelines and distribution pipelines for drinking water ◆ Sewer pipelines, stormwater pipelines ◆ Pipes for agricultural irrigation

Section 7: Main Forming Process The inner lining is manufactured on mandrels using the same process as the fiber-wrapped glass steel pipes, controlled by a computer. After gelation, the structural layer is wrapped according to the designed line and thickness, and the mortar mixed with quartz sand and resin is wrapped within the structural layer. The outer protective layer is then wrapped around.

Section 8: Product Specifications - Diameter: DN100-4000 - Pressure Ratings: 0.1MPa, 0.6MPa, 1.0MPa, 1.6MPa, 2.0MPa, 2.5MPa - Rigidity Grades: SN1250, SN2500, SN5000, SN10000 - Length: 6m, 12m Section 9: Characteristics of Glass-Fiber Reinforced Sand-Lined Pipes 1. Strong Corrosion Resistance - Glass-fiber reinforced sand-lined pipes are resistant to acids, alkalis, soil erosion, and can transport groundwater, seawater, industrial wastewater, and highly corrosive liquids. Special pipes made from corrosion-resistant materials for specific mediums maintain all the original characteristics of glass-fiber products (lightweight, corrosion-resistant, insulating, heat-resistant, and design flexibility). 2. Good Abrasion Resistance - The pipes exhibit good abrasion resistance, as tested by filling them with slurry containing large amounts of silt and stones, rotating them for ten thousand cycles. 3. Heat Resistance, Frost Resistance, and Strong Temperature Adaptability - Glass-fiber reinforced sand-lined pipes can operate normally at temperatures ranging from -40℃ to 80℃. Pipes with special resin ratios can work at temperatures up to 110℃, and they do not crack under frozen mediums. 4. Low Fluid Resistance - The smooth inner wall of the pipes reduces friction, with a roughness coefficient of 0.0084 and a resistance coefficient about half that of steel pipes and one-fourth that of cement pipes. This results in minimal fluid pressure loss, allowing for larger flow rates through smaller diameters. Typically, sand-lined pipes are one grade smaller in diameter than cast iron or cement pipes. Using pipes of the same inner diameter can save one-third of the pump power and energy. 5. High Mechanical Strength - The pipes have excellent water pressure resistance, external pressure resistance, and impact resistance, meeting the requirements for burial under various geological conditions. They can be designed and manufactured according to customer-specified pressure requirements. 6. Lightweight and Easy to Install - The pipes are lightweight, being one-fourth the weight of steel pipes and one-tenth that of cement pipes. They are easy to handle and install, with installation costs low. The pipe lengths can reach 12 meters, reducing the number of joints and the need for complex welding. Our technical staff provide on-site installation guidance to ensure quality.