Which types of joints are most often used for ductile iron pipe?

Ductile iron pipes are known for their strength and flexibility, making them highly suitable for water distribution systems. The types of joints used with ductile iron pipe are critical for ensuring a watertight and secure connection.

Push-on joints are particularly favored as they provide a simple and efficient means of connecting sections of pipe. This type of joint allows for slight movements due to thermal expansion and contraction, which is essential in varying temperature conditions that can affect the integrity of the pipeline. The design includes a rubber gasket that ensures a tight seal when the pipe sections are pushed together.

Mechanical joints also pair well with ductile iron pipes. They feature a flexible connection secured by a series of bolts and can accommodate slight misalignments or movement, which enhances their ability to handle stresses over time. This versatility helps prevent leaks and ensures the reliability of the water distribution system.

In summary, the use of push-on and mechanical joints allows for a robust and adaptable connection in ductile iron pipe applications, making them the preferred choices in the industry.