Are you looking for a part for the concealed body of your Gessi concealed thermostat with 2-way switching?
This parts list is for the Gessi concealed body 09257: the part installed in the wall, for a concealed thermostat with 2-way switching. The model has been out of production for years, but the internal components are still available.
Find the position number on the drawing and locate the part in the list below. The brass spindle extension R1167 (position 4) is used with the switching cartridge (position 2).
If the water no longer heats up properly or the temperature fluctuates, the thermostat element (position 1) usually needs to be replaced. If hot water flows through the cold water pipe (or vice versa), the non-return valves (position 3, in the water connections of the concealed body) are often worn out; these are ordered individually, and you need two.
The trim parts that fit onto the concealed body are also listed: the thermostat rosette/dust cap (position 5), the thermostat ring with the temperature scale (position 6), and the handle mounting (position 7).
Good to know: all thermostatic concealed valves from the general Gessi collection (up to approximately 2015) use the same concealed bodies and therefore the same internal components: 09255 (1-way with stop valve), 09257 (2-way switching), and 09259 (3-way switching). Only the Emporio and Goccia series have their own concealed bodies: 09254, 09256, and 09258, with the same thermostat and switching cartridges.
You can find the matching trim parts (handles, rosettes, and cover plate) on the parts list for your trim part, under Related products.
Gessi item number: 09257
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