Which type of pipe is commonly used in low-pressure hydraulic systems?

In low-pressure hydraulic systems, PVC pipes are commonly used due to their lightweight, resistance to corrosion, and ability to handle various fluids without degradation. PVC, or polyvinyl chloride, is also relatively inexpensive compared to metals, which makes it a cost-effective option for conveying fluids in less demanding applications.

These pipes can be easily installed and offer good performance for applications that do not require the high strength and pressure ratings associated with metal pipes like steel or aluminum. Furthermore, PVC pipes are rigid, providing a stable flow without the potential for collapsing under low pressures.

Other materials, such as EPDM hoses, are generally used for flexible connections or applications where movement is present, rather than for the main piping system itself. Steel and aluminum pipes are more suited for high-pressure applications due to their strength and durability, making them less ideal for low-pressure scenarios. Thus, PVC pipes effectively meet the requirements for low-pressure hydraulic systems.