Poppet valve

A poppet valve for controlling flow, the poppet valve comprising:

• a housing;
• a movable armature arranged within the housing;
• a pilot pin having first and second ends, the first end being associated with and driven by the armature;
• a poppet arranged around the second end of the pilot pin;
• a return element associated with the pilot pin;
• and
• a cage arranged around the poppet, the cage having a transverse opening adapted for water to flow therethrough,
• wherein the armature is selectively actuated to drive the pilot pin in a first direction towards a closed position, in which the transverse opening of the cage is blocked by the poppet, and the return element drives the pilot pin in a second direction towards an open position, in which the transverse opening of the cage is unblocked by the poppet,
• characterized in that the poppet valve comprises a reversible washer arranged between a guide element and an axial end of the cage, wherein the reversible washer is formed with two different axial thicknesses positioned on opposing sides of the washer, the first axial thickness on the first side being selected to correspond to a first flow rate, the second axial thickness on the second side being selected to correspond to a second flow rate, wherein the reversible washer can be reversed between the guide element and the axial end of the cage so that the distance the poppet travels backwards towards the axial end of the cage where the poppet moves into the open position is modified.