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HDPE pipe is a type of flexible plastic pipe used to transfer fluids and gases. It is often employed for replacing aging concrete or steel main pipelines . Constructed from the thermoplastic HDPE (high-density polyethylene ), it has low permeability and robust molecular bonding, making it suitable for high-pressure pipelines .
Plastic Pipe lengths manufactured in Australia by extruding HDPE material.. Plastic pipe is a tubular section, or hollow cylinder, made of plastic.It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids.
Rolling stock manufacturers of South Africa (3 P) T. Tool manufacturing companies of South Africa (2 P) V. Vehicle manufacturers of South Africa (1 C, 1 P)
The figures are in billions of US dollars and are for the year 2019. All 14 companies from South Africa in the Forbes 2000 are listed. [2] *Despite the company being South African with Head Offices in South Africa, the company is listed as British by the Forbes 2000 ranking due to the entity's registered address in London.
HDPE pipeline on a mine site in Australia. A pipeline is a system of pipes for long-distance transportation of a liquid or gas, typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than 2,175,000 miles (3,500,000 km) of pipeline in 120 countries around the world. [1]
The Hong Kong nets are generally 35 mm square on the surface 2 m and 100 mm square thereafter. They are suspended off 225 mm HDPE pipe or BL14 Marine Float Lines, and anchored strongly to resist the many typhoons and waves up to 10 m. They are anti-fouled, and spend an average of 9 months a year in the water.
HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]
Thick walled HDPE Pipes for slurry application A slurry pipeline is a specially engineered pipeline used to move ores, such as coal or iron, or mining waste, called tailings , over long distances. A mixture of the ore concentrate and water, called slurry , is pumped to its destination and the water is filtered out.