In underground applications, ductile iron pipe features the "push-on" joint, an extremely capable
gasketed joint that is very easy to install.
The PVC pipe uses a
gasketed joint; HDPE pipe uses a heat-fused joint.
Further claims are that the easily installed PVC integral bell
gasketed joint, when installed properly, will easily meet a 50 gallons/inch diameter/mile/day infiltration/exfiltration parameter and other performance standards such as specific situations based on low pressure air testing.
Introduced in 1995, the product adds strength and structural stability to the
gasketed joint, Armstrong said.
PVC accommodates expansion and contraction every 20 feet at the
gasketed joint.
diameter), structural integrity, and ease of joining with a bell and spigot
gasketed joint.
The most common and successful technique employs a
gasketed joint. The
gasketed joint may be either integral bell design (formed as a continuous, homogeneous entity with the pipe) or may consist of a separate sleeve-type coupling.
"Pipe is assembled as a simple
gasketed joint," St.