Abstract: The invention relates to a coupling element (1) for a coupling for connection of pressure medium lines, including a housing (2), a flow channel (5) for a pressure medium, a valve tappet (6), a pressure sleeve (7), and an inner body (8), wherein the valve tappet (6) has a valve tappet head (10), wherein the pressure sleeve (7) surrounds the valve tappet (6), wherein the pressure sleeve (7) is held such that it can move along the coupling axis A between a closed position and an open position, wherein the pressure sleeve (7) is in contact with the valve tappet head (10) in the closed position thereof, whereby a force parallel to the coupling axis A acts upon the valve tappet head (10) from the pressure sleeve (7). The safety for users and the operating characteristics are improved, in that the inner body (8) and/or the pressure sleeve (7) have means with which the force from the pressure sleeve (7) acting on the valve tappet head (10) can be limited.

Abstract: The invention relates to a coupling element (1) for a coupling for connection of pressure medium lines, including a housing (2), a flow channel (5) for a pressure medium, a valve tappet (6), a pressure sleeve (7), and an inner body (8), wherein the valve tappet (6) has a valve tappet head (10), wherein the pressure sleeve (7) surrounds the valve tappet (6), wherein the pressure sleeve (7) is held such that it can move along the coupling axis A between a closed position and an open position, wherein the pressure sleeve (7) is in contact with the valve tappet head (10) in the closed position thereof, whereby a force parallel to the coupling axis A acts upon the valve tappet head (10) from the pressure sleeve (7). The safety for users and the operating characteristics are improved, in that the inner body (8) and/or the pressure sleeve (7) have means with which the force from the pressure sleeve (7) acting on the valve tappet head (10) can be limited.

Abstract: A coupling part coupling with a corresponding coupling part of a coupling for pressure medium lines has a housing having a flow channel and a coupling axis, and a sleeve-like closing valve displaceable back and forth axially within the flow channel, for closing off the flow channel in the uncoupled state of the coupling part. The closing valve has a closed valve position and an open valve position, closing off and not closing the flow channel, respectively. A plunger within the flow channel displaceable back and forth axially drives the closing valve in a valve opening direction during coupling. A plunger pin between the plunger and the closing valve within the flow channel, displaceable back and forth axially, transfers the movement of the plunger in the valve opening direction to the closing valve. The plunger pin is connected with the closing valve so as to be non-displaceable axially.

Abstract: A coupling part coupling with a corresponding coupling part of a coupling for pressure medium lines has a housing having a flow channel and a coupling axis, and a sleeve-like closing valve displaceable back and forth axially within the flow channel, for closing off the flow channel in the uncoupled state of the coupling part. The closing valve has a closed valve position and an open valve position, closing off and not closing the flow channel, respectively. A plunger within the flow channel displaceable back and forth axially drives the closing valve in a valve opening direction during coupling. A plunger pin between the plunger and the closing valve within the flow channel, displaceable back and forth axially, transfers the movement of the plunger in the valve opening direction to the closing valve. The plunger pin is connected with the closing valve so as to be non-displaceable axially.