Fixed disc for soft water valve, soft water valve and water softener

The invention relates to the technical field of water softening, and provides a fixed disc for a water softening valve, the water softening valve and a water softener, the water softener comprises the water softening valve, a resin assembly and a salt absorption and pollution discharge device, the water softening valve comprises the fixed disc, the fixed disc comprises a disc body and a separation structure, the separation structure is arranged on the disc body, the radial plane of the disc body is divided into at least one subarea by the separation structure, and the separation structure is arranged in the subarea; and water through holes are formed in the subareas. Through the separation structure, the radial plane of the disc body is divided into at least one subarea, the design of the fixed disc enables the structure to be relatively simple and convenient to manufacture and machine, the structural strength of the disc body can be improved, the risks of deformation and damage are reduced, and then the service life of the fixed disc is prolonged.