A 12" HDPE pipe float designed for dredging in sand mining would have similar characteristics to the 10" version but tailored for a larger pipeline. Here's a detailed overview:

Specifications:

• Inner Diameter (ID): 345 mm (to accommodate a 12" dredging pipe).
• Outer Diameter (OD): Typically larger than the inner diameter to provide the necessary buoyancy, depending on the specific float design and buoyancy requirements.
• Material: HDPE (High-Density Polyethylene) for durability, UV resistance, corrosion resistance, and lightweight properties.
• Buoyancy Capacity: Designed to support the additional weight of a 12" dredging pipe along with the slurry it carries. Buoyancy requirements may vary based on the slurry density and the environmental conditions.
• Design: Two-piece clamshell design that is bolted or strapped around the dredging pipe, allowing for easy installation and maintenance.
• Weight: Lightweight enough for easy handling but robust enough to support the pipe and slurry weight.
• Applications: Primarily used in dredging, sand mining, or slurry transportation, especially in offshore or coastal projects where buoyancy is essential to keeping the pipeline above water.

Key Features:

• High Buoyancy: To maintain the pipe afloat during operations even under challenging conditions.
• Durability: Resistant to impacts, abrasions, UV light, and chemical exposure from marine environments.
• Easy Installation: Two-piece design allows for quick setup and removal when necessary.

These floats are vital in dredging operations, ensuring that large pipes, such as 12" pipes used for moving large volumes of sand or slurry, remain stable and above water.