Editing Trombone (section)

==== Valve types ====
{{See also|Axial flow valve|Hagmann valve}}
{{Multiple image
| total_width = 400px
| align = right
| image1 = Rotary valve on tenor trombone.jpg
| image2 = Axial flow valve on tenor trombone.jpg
| image3 = Hagmann valve on tenor trombone.jpg
| alt1 = Trombone with rotary valve
| alt2 = Trombone with axial flow valve
| alt3 = Trombone with Hagmann valve
| footer = Trombone valve attachments. Standard rotary valve, ''left''; Thayer [[axial flow valve]], ''center''; [[Hagmann valve]], ''right''.
| footer_align = center
}}

The most common type of valve seen for valve attachments is the [[rotary valve]], appearing on most band instruments, as well as most student and intermediate model trombones. Many improvements of the rotary valve, as well as entirely new and radically different valve designs, have been invented since the mid 20th century to give the trombone a more open, free sound than the tight bends in conventional rotary valve designs would allow. Many of these new valve designs have been widely adopted by players, especially in symphony orchestras. The Thayer [[axial flow valve]] is offered on professional models from most trombone manufacturers, and the [[Hagmann valve]] particularly from European manufacturers.

Some trombones have three [[piston valve|piston]] or [[rotary valve|rotary]] valves instead of a slide; see [[valve trombone]].