Stuck and Connection
Check the marking and reference of the unit removed. A Pressure opening from the colour of the Control knob is not attributed or proposed to be replaced by a different setting.

Saunier Duval Isofast F 35 EA safety valve, reconditioned. Vertical brass body with a red cap, side threads and a lower black seal. Check the specified setting, thread and discharge orientation against the boiler valve.
Check the Body, the type of Connection, and the orientation of the output. The color of the cap helps locate the Part, but does not identify its moron by itself.
The shape of the Body, the position of the connections and the elements described in this unit. Compare the views from the same angle and the complete identification of the withdrawn Part.
Choose a photo of your part to view it beside this unit. Compare the labels, connectors and mounting points from the same angle.
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Application listed in the catalogue: Saunier Duval Isofast F 35 EA. The variant and configuration must match the installed equipment; this does not establish compatibility with other models.
No models are documented for that search.
The application is listed in the catalogue and must be checked against the installed variant. Compatibility has not been confirmed against an exploded parts diagram.
Check the marking and reference of the unit removed. A Pressure opening from the colour of the Control knob is not attributed or proposed to be replaced by a different setting.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
Body of vertical brass with red Cover, side threads and bottom black Gasket. Compare these details with the removed Part and its complete identification.
The shape of the Body, the position of the connections and the elements described in this unit. Compare the views from the same angle and the complete identification of the withdrawn Part.
This product page identifies the catalogued application Saunier Duval Isofast F 35 EA. It does not establish equivalence with other versions; service documentation linking Part to the specific model is required to extend compatibility.