PVC, FRP, HDPE & Other Plastic Pipes
HDPE pipe is a type of flexible plastic pipe used for fluid and gas transfer and is often used to replace ageing concrete or steel mains pipelines. Made from the thermoplastic HDPE (high-density polyethylene), its high level of impermeability and strong molecular bond make it suitable for high pressure pipelines.
There are two main types of PVC pipe, schedule 40 and schedule 80. What makes them different is the thickness of the pipe walls. A rule of thumb when it comes to PVC pipes is that the higher the number, the thicker it is. For instance, of the two, schedule 80 has thicker walls when compared to schedule 40.
Copper pipes with lead-free joint materials are the best choice for water pipes. They are long-lasting and won't leach chemicals into your drinking water. However, copper pipes are generally more expensive, and copper's intensive extraction and manufacturing process presents some environmental trade-offs.