PE Plastic Dredging Pipe Float FT700*900

PE Plastic Dredging Pipe Float FT700*900

Product Introduction

The FT700*900 Marine PE Plastic Dredging Pipe Float is a high-performance buoyancy module specifically engineered for heavy-duty dredging and sand pumping operations. Designed to support pipelines in rivers, lakes, and offshore environments, this model combines optimized dimensions with robust construction to ensure reliable flotation and protection for discharge pipelines during continuous dredging operations .

Precision Engineering & Dimensions

The FT700*900 features a carefully balanced design with an outer diameter of 700mm and length of 900mm, providing an inner diameter of 280mm to accommodate standard dredging pipelines . This configuration delivers approximately 450kg of net buoyancy per unit, ensuring pipelines remain properly positioned above water even when handling high-density sand slurries .

Advanced Material Construction

Each FT700*900 float is manufactured from high-density polyethylene (HDPE) or medium-density polyethylene (MDPE) through advanced rotational molding technology, creating a seamless, double-skinned outer shell . The shell is filled with high-strength closed-cell polyurethane (PU) or expanded polystyrene (EPS) foam, which provides permanent buoyancy even if the outer shell is punctured . This dual-layer construction delivers exceptional resistance to impact, corrosion, UV radiation, and harsh marine conditions .

Technical Parameters

Key Features & Benefits

*Optimized Buoyancy Performance: The FT700*900 delivers 450kg net buoyancy per unit, engineered to provide 30% higher flotation than pipeline weight requirements, ensuring safe and reliable operation during sand dredging and slurry transportation . 

*Exceptional Durability: The polyethylene shell offers outstanding weather resistance, environmental stress crack resistance, and operational temperature range from -60°C to +80°C . Impact strength exceeds 31.4 KJ/m², with tensile strength greater than 12 MPa .

*Patented Locating Slot Design: Many FT700*900 floats feature an innovative locating slot design that ensures tight connecting between float halves and the pipeline, preventing slippage and maintaining stable positioning even in rough sea conditions .

*Corrosion-Resistant Hardware: Supplied with galvanized or 304 stainless steel bolts, nuts, and washers that provide secure, vibration-resistant connections while resisting saltwater corrosion. This ensures long-term structural integrity in marine environments .

*Two-Half Modular Design: Each float consists of two symmetrical halves that bolt together around the pipeline, enabling quick and easy installation without specialized tools or equipment. This design allows for convenient maintenance, repositioning, or replacement as project requirements change .

*High Visibility Safety: Manufactured in bright international safety colors (typically orange) to act as warning signals to other vessels and improve visibility during day and night operations, preventing accidental pipeline collisions .

*Low Maintenance & Extended Service Life: The non-porous HDPE material resists marine growth, chemicals, and abrasion, lasting up to three times longer than traditional steel pontoons with virtually zero maintenance requirements .

Typical Applications

Sand Dredging & Excavation: Provides essential flotation for discharge pipelines in river and lake sand mining operations .

Land Reclamation Projects: Supports pipelines transporting sand and slurry for coastal development and hydraulic reclamation .

Offshore Dredging: Engineered for open sea installations where wave action and corrosive saltwater demand maximum durability .

Cutter Suction Dredgers: Ensures stable pipeline positioning during continuous dredging operations .

Channel Dredging & Port Expansion: Ideal for maintaining navigation channels and expanding port facilities .