Pistons – pTrumpet hyTech piston assemblies include lightweight top caps and silenced with traditional felts on and beneath the top caps. Threading design for top and bottom valve caps not only provides for secure fit but also designed for strength and longevity. Top-action covered valve springs and a single ABS valve guide provide proper action and position. 

The pistons themselves are each stainless steel lined on a poly core. Each piston port is exact and chamfered for a smooth transition between the materials. Pistons are centerless ground to achieve fine tolerance and hand-lapped to fit each brass sleeve. Extensive testing reveals that our processes are achieving high industry standards of compression across the valve block, comparable to the best student level trumpets and even some higher level models. Proper compression equates to good focus, slotting, tuning and articulating (ease of speaking) when playing. Pistons, casings and ports are thoroughly cleaned by hand to remove any extraneous materials throughout the process. Synthetic oils are recommended but any traditional valve oil is acceptable.