![Sylinder valves](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Zylinderventile-e1490562970864.jpg?media=1674296457)
Rotor valves
![Traditional valve](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Traditionelles-Ventil-e1490563009119.jpg?media=1674296457)
Traditional rotor valve
![Hagmann valve](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Hagmannventil-e1490563061623.jpg?media=1674296457)
Hagmann valve
![Free-flow (Meinlschmidt)](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Free-flow-Meinlschmidt-e1490563033468.jpg?media=1674296457)
Free-flow valve (Meinlschmidt)
![Free-flow (Greenhoe)](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Free-flow-Greenhoe-e1490563021625.jpg?media=1674296457)
Free-flow valve (Greenhoe)
![Axial valve (Thayer valve)](https://usercontent.one/wp/helmut-voigt.com/wp-content/uploads/2017/03/Axialventil-Thayerventil-e1490563045515.jpg?media=1674296457)
Axial valve (Thayer valve)
Rotor valves
Traditional rotor valve
Hagmann valve
Free-flow valve (Meinlschmidt)
Free-flow valve (Greenhoe)
Axial valve (Thayer valve)