Abstract: A method of manufacturing a valve element for a solenoid valve to open and close a valve seat, comprising the steps of; preparing a leaf spring including an outer peripheral ring section and a hub section having a central hole, forming a ring-shaped outer peripheral seal along the peripheral ring section, and preparing a movable core having a cup-shaped cross section and including a cylindrical section and an end wall section. The method further comprising, forming a valve seal on the end wall section by placing the movable core and the leaf spring in a mold and aligning and holding the leaf spring and the stepped section in contact with each other, and aligning a holder ring along an outer periphery of the movable core, and bringing the holder ring into engagement with the movable core, wherein the leaf spring and the movable core are rigidly secured to each other.

Abstract: A valve element with a disk-shaped leaf spring carrying a movable core in a solenoid valve to open/close a valve seat. The leaf spring includes an outer peripheral ring section, a hub section having a central hole and a plurality of radially arranged arm sections connected between the ring; section and hub section. A seal of elastic material extends along the outer peripheral, ring section of the leaf spring. The movable core has a cylindrical section and an end wall section having a through central hole. The cylindrical section has a stepped section on its outer periphery adapted to be held in contact with the leaf spring. A valve seal is formed on the end wall section through vulcanization and molding, and has a main body section on the outer surface of the end wall section, a small diameter section in said through hole and a holder section connected to the main body section by the small diameter section and inner surface of the end wall section.