Control pressure
Pressure required to start or maintain the function of a valve (device). The control pressure can be, but does not necessarily have to be, identical to the pressure in the system. A differentiation is
Rolling vane motor
Special form of vane machines , in which six "vanes" (sealing edges) are placed on the rotor. Sealing between the suction and pressure chamber is performed by four synchronous-running sealing rotors (
Centre position
Central position for valves with three switching positions . With directional valves , it is generally arranged with the help of centring springs and then becomes the initial position . Around 14 vari