Suction valve with unloader

A suction valve comprising a valve seat (3), a valve guard (2) and a valve element (4) reciprocatingly arranged between valve seat (3) and valve guard (2) and further comprising an unloader (22) having a plurality of unloader fingers (24) which reach through flow passages (13) in the valve seat (3) and which lie against the valve element (4), whereby the unloader (22) is arranged in a non-rotational manner relative to the valve seat (3) and is guided in axial direction by means of an anti-rotation lock for said unloader (22), characterized in that said unloader lock is designed as a cylinder-shaped lock sleeve (20), which is arranged non-rotatably and concentric relative to the valve seat (3) and whereby the cylinder-shaped lock sleeve (25) is provided with a base area having a non-circular outer contour, and whereby there is arranged on the unloader (22) a central section (28) having an axially through-going concentric opening with an inner contour that is diametrically opposed to said outer contour, and whereby the unloader (22) is arranged with its central section (28) on the lock sleeve (25) for the purpose of guidance and anti-rotation of the unloader.