Centuries of Durability and Endurance

You don’t need to be a king or president to enjoy the benefits of cast iron soil pipe. Cast iron DWV plumbing systems date back to the reign of Louis XIV and his fountains of Versailles and the White House also uses cast iron. When it comes to durability, cast iron is the logical choice.

Durability Matters

When specifying product for high-rise buildings, schools, hospitals and condominiums, cast iron soil pipe provides the additional benefit of durability, because:

• Cast iron soil pipe is a rigid piping system. When installed underground cast iron has crush loads 5 to 8 times greater than a flexible plastic piping system
• It’s deflection is almost nonexistent in underground installations as compared to plastic piping. Plastic piping fails at 5% deflection and requires special bedding and trench widths to maintain side fill stiffness.
• Thermal expansion and contraction rates for cast iron are similar to concrete and steel. Plastic piping requires a designer or installer to determine specifications for expansion and contraction.

These benefits make installation of cast iron cheaper to install than plastic piping and deliver on the durability expected.

You can rely on the Cast Iron Soil Pipe Institute (CISPI). CISPI raises the bar by monitoring and managing a rigorous process to verify that cast iron poured at the three member foundries meets stringent quality standards.