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.

Vaillant safety valve, reconditioned. Vertical brass body with a dark grey cap, engraved arrow and side outlet. Pressure marked on the cap: 3 bar. 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 Compare the views from the same angle and the complete identification of the withdrawn Part.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.
Your photo stays on your device: it is not sent or stored.

Catalogue listing: Vaillant. The part must match the installed appliance’s variant and configuration. The catalogue entry does not establish compatibility with other models.
No models are documented for that search.
If identification does not match, consult before purchasing.
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 dark grey cap, engraved arrow and side exit. Compare these details with the withdrawn Part and its complete identification.
Pressure marked in cap: 3 bar. They are readings of the unit photographed and not an equivalent list of references.
This tab identifies the Vaillant cataloged application. It does not credit equivalences with other versions; to expand them, it requires service documentation that relates the Part to the specific model.