What type of pipe is typically used for high pressure applications in water works?

The use of Schedule 40 steel pipe in high-pressure applications is common due to its ability to withstand higher internal pressures compared to other types of piping. Schedule 40 provides a good balance between strength and weight, making it a practical choice for various water distribution systems. Its wall thickness is adequate to handle increased pressures while maintaining structural integrity.

In contrast, the other materials mentioned are either not suited for high-pressure applications or have limitations in strength and durability. Schedule 30 steel has thinner walls and is typically not rated for high-pressure use. Schedule 80 PVC can handle higher pressures than Schedule 40 PVC, but it may not have the same overall strength as steel in extreme conditions. Schedule 60 copper has specific applications, primarily in plumbing and heating, but is less common in high-pressure scenarios within larger water systems.

Overall, Schedule 40 steel is favored for its robustness, versatility, and effectiveness in managing high-pressure conditions in water works infrastructure.