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Properties of HDPE
Unique Properties
HDPE is renowned for it's properties. PipeFlo HDPE has a black appearance and a waxy surface feel. HDPE ignites on contact with a flame and continues to burn with the removal of a flame. HDPE forms no corrosive gasses/residues when burned. 
High-density polyethylene pipes is non-toxic, and has a high impact- and chemical resistance. Our high-density polyethylene pipes are both internally and externally resistant to corrosion.
One of the most important advantages of HDPE is that it has no inside crustations or build-up of materials. HDPE has very low water absorption. High-density polyethylene pipes takes little to no stress cracking. It has some stress crack sensitivity with regard to the jointing for safe media (e.g. water).
The maximum service design pressure (pressure rating) is reliant on: the pipe’s material strength, the pipe’s thickness, and the temperature the pipe will endure during the application. HDPE’s pressure rating is the maximum pressure that water in the pipe can exert continuously, with a high degree of certainty that pipe failure will not occur.
It is important to remember that HDPE cannot handle constant temperatures exceeding 60ºC if used in pressure applications. In non-pressure applications the temperature generally cannot exceed 80ºC. HDPE can handle operating temperatures below –18ºC. HDPE is often used as ‘cold pipe’, meaning that it is generally used in cold temperatures.
Due to its easy jointing and superior properties, HDPE will prove to be the long-term solution for a variety of sectors: farmer, farm production, farm management, fruit and vegetable processing, urban household and housing, oil and gas exploration, the mining industry, the chemical industry, sugar factories, watershed development, waste land development, landscaping, and greenhouses.
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