Are you looking for a part for the concealed valve of your Gessi Emporio or Goccia concealed thermostat with 3-way diverter?
This parts list is for the Gessi concealed valve 09258: the part installed in the wall, for a concealed thermostat with 3-way diverter from the Emporio and Goccia series. The model is no longer in production, but the internal components are still available.
Find the position number on the drawing and locate the part in the list below.
If the water is no longer getting hot enough, or if the temperature fluctuates, the thermostat element (position 1) usually needs replacing. If hot water is flowing through the cold water pipe (or vice versa), the non-return valves (position 3, in the water connections of the concealed valve) are often worn out; these are ordered individually, and you need two. The brass spindle extension R1167 (position 4) is supplied with the diverter cartridge (position 2).
Good to know: all thermostatic concealed valves from the general Gessi collection (up to around 2015) use the same concealed valves and therefore the same internal components: 09255 (1-way with shut-off valve), 09257 (2-way diverter) and 09259 (3-way diverter). Only the Emporio and Goccia series have their own concealed valves: 09254, 09256 and 09258, with the same thermostat and diverter cartridges.
Gessi item number: 09258
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