A 10" HDPE pipe float for dredging in sand mining typically consists of two half-shells made of high-density polyethylene (HDPE). These floats are designed to provide buoyancy to dredging pipes used in the mining process. Here's a brief overview of the specifications you might expect:

• Inner Diameter (ID): 280 mm (this corresponds to the pipe size it is meant to support)
• Outer Diameter (OD): Usually larger due to the additional material for buoyancy, depending on the design.
• Material: HDPE (High-Density Polyethylene), known for its corrosion resistance, durability, and lightweight properties.
• Buoyancy Capacity: The float should be designed to provide sufficient buoyancy to keep the pipeline afloat while handling the load of the slurry being transported.
• Design: Two-piece clamshell design with a bolted or strapped connection for easy installation around the pipe.
• Weight: Typically lightweight for easy installation and transportation.
• Applications: Suitable for dredging, sand mining, slurry transportation, and offshore operations.

These floats are used to support the dredging pipes on the water surface, ensuring smooth transportation of materials like sand, gravel, and slurry over long distances.