For Heavy Duty Diesel Engines: Air Duct Seals Parker Solution Parker’s Air Duct Seals for Heavy Duty Engines are a single piece, easy to install metal design, providing lower leak rates than traditional labyrinth piston ring seals. The continuous single-piece metal seal design is enhanced with the use of TriCom-HT™, Parker’s proprietary high-temperature, anti-wear coating. TriCom-HT™ provides superior wear resistance, protecting the Air Duct Seal from the detrimental effects of engine vibration and thermal cycling, resulting in 80% less leakage and extended seal life. Our Air Duct Seal design fits tightly into the mating hardware, greatly reducing leak paths. Machined grooves are not required in the mating hardware, thereby lowering your manufacturing cost. Contact Information: Features & Benefits: Parker Hannifin Corporation Composite Sealing Systems 33 Defco Park Road North Haven, CT 06473 phone 203 239 3341 fax 203 234 7233 www.parker.com/css • Easy to Install • Single Piece, Metal Design • Anti-Wear Coating • Lower Leak Rates than Labyrinth Piston Ring Seals • High Temperature Resistance • High Corrosion Resistance • Vibration Resistant • Long Life Parker ENGINEERING YOUR SUCCESS.

Most heavy duty diesel engines can reach exhaust gas temperatures upwards of 700°C (1292°F) while subjected to constant vibrations. These engine vibrations can cause havoc when a seal needs to be maintained on the exhaust line. Vibrations from the engine cause rotation, cavity offsets, pivoting, and reciprocation which become difficult to seal against. Increased emission restrictions are requiring engine manufacturers to conform to Euro 6 and Tier IV regulations to reduce exhaust leakage 80% or more. In order to achieve these new standards, engines with extreme temperatures coupled with a high...