PenSeal Plus (Boiler Penetration Seals)

PenSeal Plus penetration seals were developed by Expansion Joint Systems to address the many problems associated with penetrating the shell of a boiler or similar pressure casing.

Traditionally when a tube or pipe penetrates the casing, a slip joint packed type seal is often used to allow the tube or pipe to thermally expand and contract without damaging the surrounding shell or pressure casing. The packing material in this joint is used to help reduce the escape of heat and gas from the boiler. However, these designs have many drawbacks. They require constant adjusting to keep the seal from leaking excessively. Because slip joint type packed seals can not be insulated, imposed stress on the tubes will eventually cause the unit to leak and become so hot that maintenance personnel are unable to get close enough to adjust them. PenSeal Plus penetration seals are the solution to these problems.

PenSeal Plus is a state of the art bellows expansion joint that offers a complete seal that eliminates the leakage of heat and other emissions, reduces noise, and protects maintenance personnel.

These seals can be completely insulated which ensures the least amount of heat loss at the point of penetration as well as helping to cool the casing area around it. Because PenSeal Plus is a true expansion joint, it is designed to accept axial, lateral and angular movements therefore, lowering the stress on the tubes and pipes they are attached to. Lastly, and most importantly, PenSeal Plus is maintenance free. Install it and forget!

Expansion Joint Systems, Inc., 10025 Prospect Avenue, Suite 202, Santee, CA 92071. Tel: 619-562-7458; Fax: 619-562-0636.