123 ESE SEAL (ELASTOMERIC SPRING ENERGIZED) Superior Performance in Tandem Systems E S E SELF-VENTING DESIGN Generally used as a primary rod seal in dynamic tandem systems, Greene, Tweed’s new ESE design is available for use in either one or two back-up gland widths. The ESE provides superior performance in tandem seal applications. Its unidirectional, “self-venting” design is complemented with a high modulus back-up ring that is installable into “closed-groove” configurations for [MSE®] types). Along with the “self-venting” capability, the ESE design offers low operating friction along a wide operational temperature range. APPLICATIONS The seal assembly itself consists of an extremely durable, PTFE ring. In order to help optimize seal life, Greene, Tweed recommends • Primary and secondary flight control actuators (rudder, aileron, stabilizer, flaps, etc.) the use of our high-performance Avalon® PTFE materials. The • Tandem, “closed-groove” rod configurations combination of a thermoplastic Avalon jacket with one of our • Utility actuators jacket with an elastomeric energizer and high modulus back-up most sizes (unlike that of many standard, metal-spring-energized specially formulated, elastomeric O-ring energizers delivers enhanced performance over a wide temperature range. Generally this range extends from -65°F to 450°F (-54°C to 232°C) depending on materials selected. Greene, Tweed’s ESE also features a high ESE with Back-up Ring strength back-up ring to provide additional stability in the gland and help prevent any possibility of extrusion. FEATURES & BENEFITS • Resilient Avalon jacket coupled with a durable elastomeric energizer plus anti-extrusion back-up ring for enhanced performance over a wide temperature range • Installable into most existing AS4716 configurations for ease of maintenance Note: Dimensions as specified in AS4716. © 2007, Greene, Tweed all rights reserved All trademarks are property of their respective owners. 04/07-GT DS-US-AS-003

Material Designator Tables ESE PART NUMBERING SYSTEM ELASTOMER COMPOUND designator tables found in the next column. For nonstandard designs contact GT engineering. FVMQ, Fluorosilicone FVMQ, Fluorosilicone Jacket/back-up ring material designator EPDM, Ethylene Propylene 01–49* Nonstandard Straight b/u ring 50 JACKET/BACK-UP MATERIAL Avalon 09 Jacket/Arlon 1330 Backup * Note: Contact GT engineering. Avalon 09 Jacket/NWR Backup Avalon 50 Jacket/Arlon 1330 Backup Avalon 89 Jacket/Arlon 1330 Backup Avalon 89 Jacket/Avalon 69 Backup Rod gland width 3 = One back-up width groove 5 = Two back-up width...