External Pipe Joint Seals
NPC External Joint Seals prevent infiltration at joints in pipe and manholes by bridging the joint with a flexible rubber seal and compressing the rubber against the outside diameter of the pipe or manhole on either side of the joint with compression bands. Installation is frequently performed in new installation and repair where new pipe or manhole sections are spliced into place.
- Install on concrete, reinforced concrete, PVC, HDPE and most other pipe types
- Effective up to 70 feet external head pressure
- Material Properties comply with ASTM C923