Valve blocks designed for use in a specific hydraulic circuit according to customer requirements. Example: the BT 12 damping block, designed for damping and locking the turntable of articulated buses. The block controls the damping of the turntable movement in three stages depending on the speed of the bus, and blocks further movement of the turntable when the maximum permissible angle of rotation of both parts of the bus is reached. It works with an electronic block, a pulse speed sensor and a non-contact position sensor.