SOFT THROTTLING VALVE

The present invention relates to a top cover (3) for a soft throttling valve body (2), to a soft throttling valve (1), and to a method for throttling a main valve of a soft throttling valve (1). A follower arrangement (8) is arranged to throttle a pilot fluid flow for setting a degree of opening of the main valve in order to allow a soft throttling of the main valve, a throttling of the pilot fluid flow depending on a degree of opening of the main valve, so as to allow for a soft throttling process of the main valve. Thus, a self-controlled throttling of pilot fluid flow driving the main valvein order to establish a partial opening of the main valve becomes possible. By that, a good prevention of pressure shocks when throttling the valve is allowed and a good control for partially openingthe main valve is achieved. 本发明涉及种用于软节流阀体(2)的顶盖(3)、涉及种软节流阀(1)、并且涉及种用于使软节流阀(1)的主阀节流的方法。随动件安排(8)被安排成用于使先导流体流动节流，该先导流体流动用于设置该主阀的开度以便允许该主阀的软节流，该先导流体流动的节流取决于该主阀的开度，以便允许该主阀的软节流过程。因而，先导流体流动驱动该主阀以便建立该主阀的部分打开的自控节流成为可能。由此，当允许使该阀节流时允许良好