This S.E. Shires axial flow valve section is a professional-grade component designed for large bore tenor trombone setups. Offered here as an archive reference, this example was previously owned by a pro player and has been exceptionally well maintained throughout its life.
The axial flow valve on this S.E. Shires section is modeled after the O.E. Thayer axial flow valve, which was first produced in the early 1990s. This design reduces airflow deflection, allowing for a more free-blowing, open feel when the valve is engaged. Shires further refined the concept by introducing a more robust mechanical mini-ball linkage system, enhancing reliability and delivering an exceptionally smooth, consistent action. This combination of improved airflow and mechanical precision allows players to transition seamlessly between open and valve notes without compromise.
This section had no dents or dings and featured considerable lacquer wear from regular professional use — purely cosmetic and common on well-loved components. Before delivery to its new owner, it underwent a full chemical bath and complete shop service to ensure top playing condition.
The Shires axial flow valve section is fully compatible with all S.E. Shires bells, tuning slides, and handslides, making it an ideal upgrade or modular swap for players looking to customize their setup. Its open feel and excellent response make it a favorite among orchestral trombonists and soloists who demand maximum efficiency and sound quality.
At The Brass Exchange, we have been an Authorized S.E. Shires Pro Shop for well over a decade, and we take pride in providing top-tier Shires components to players looking to refine or expand their instrument configurations.
Why do players prefer the S.E. Shires axial flow valve section?
The S.E. Shires axial flow valve section is preferred because of its ultra-smooth, free-blowing character and exceptional mechanical reliability. The axial design reduces resistance compared to traditional rotary valves, giving players a more open, consistent tone when using the valve. Its compatibility with the full range of Shires modular components also allows musicians to achieve a truly customized setup tailored to their individual sound and playing style. Combined with Shires' precise engineering and craftsmanship, the axial valve has become a top choice among professional tenor trombonists.
