Trelleborg - Model 104 - Delta Seal System Brochure

Trelleborg 104 Delta Seal is a sliding seal that is stretched onto the spigot end of the pipe or manhole. Lubricant is applied to the socket prior to jointing. The joint design is standard in many countries. The special design of the joint and seal make the system easy to centre during jointing. This design permits installation with very low force.