application_number US 92396986 A description the present invention is an improved water bypass valve for steam irons that control passage between the water tank 1 situated at the top and the vaporizing chamber 2 defined in the soleplate 3 of the iron in which the heating resistor 4 is incorporated as is shown in fig1 to 3 the valve body consists of an upper half body 5 and a lower half body 6 both of elastomer material and stepped configuration which half bodies are coupled opposite each other by placing their circular faces of greater diameter back to back so that the wider center part of the valve body formed is located right between the floor 7 of the water tank 1 and the roof 8 of the vaporizing chamber while the part of lesser diameter of the upper half body 5 is tightly fitted through the floor 7 and the corresponding one of the lower half body 6 is tightly fitted in the roof 8 between both half bodies 5 6 a recess 9 is defined inside which is limited at the top by an opening 20 that permits the moving member of the valve or lock pin 10 to slide while also providing a seal the recess 9 being limited at the bottom by a seating piece 11 for the end 12 of the pin 10 which is of ceramic metal or other material of suitable hardness and that is embedded in the lower half body 6 which in turn has a drill hole 11a that connects the recess 9 outside through the seating piece 11 of the pin 10 when.