Abstract: A steam pressing iron having a sole plate 11 provided with steam outlet holes 12 communicating with an evaporation chamber 14, the sole plate 11 and the evaporation chamber 14 being in thermal communication with a heating device, the evaporation chamber 14 communicating with a reservoir 15 via an orifice 16 capable of being blocked by a valve 17 disposed in a housing 52. The valve 17 includes a rod 5 capable of blocking the orifice 16, the rod having a shoulder 19 capable of resting on a support 3 that is fixed to a bellows 4 forming at least one part of a water tight conduit 31 between the reservoir 15 and the evaporation chamber 14, the support 3 being capable of being actuated by a bimetallic strip 1 mounted on a wall in thermal communication with the evaporation chamber 14.