What is the difference between a Rieber and a non-Rieber gasket?

Rieber gasket: A steel wire or steel strip insert is incorporated in the gasket, which helps “lock-in” the gasket in the bell ring groove. This gasket is non-removable, and higher insertion forces may be encountered compared to the non-locked-in gasket.

Non-Rieber gasket: This non-locked-in gasket is typically pre-installed from our factory. Ensure that the ring groove is clean should this ring be removed and re-installed in the field.

Having indicated the above, both gasket designs conform to the same standards (gasket: ASTM F477, and joint qualification: ASTM D3139) and installation procedures for our Ring-Tite IPS PVC pipe. Joint preparation and assembly considerations include the following:

1. Ensure the bell, gasket and spigot are clean prior to and during assembly.
2. Ensure the gasket is seated evenly in the ring groove.
3. Apply lubricant evenly and only on the spigot end. Applying lubricant on the gasket may introduce lubricant onto the ring groove, making the ring prone to displacement.
4. Insert up to the reference mark only. Do not stab or “home” the spigot into the bell.
5. Align the spigot during insertion, and be vigilant to undue resistance, which may indicate a dislodged gasket or incomplete lubrication.

Our joint designs have a proven history, and we assure you that our pipe will perform as intended when installed as recommended.