Saunier Duval Thema/Themaplus/Combitek 23 Non-Return Valve Ref. 05726600
Safety valve compatible with Thema C 23, Thema F 23 E, Themaplus F 23 E, and Combitek C 23 / C 23 V boilers. This type of valve releases pressure from the circuit when the working limit is exceeded. The manufacturer of this specific part and its code have not been identified: the available photos do not show any legible markings or inscriptions.
Spare parts related to Saunier Duval Thema
Saunier Duval boilers compatible with reference 05726600
Safety valve with reference 05726600. Six confirmed compatibilities with two independent sources: Thema C 23 E and Thema F 23 E. Verify the printed reference on your part before purchasing.
Compatibility confirmed
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Thema C 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Thema F 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Themaplus C 23 E | Themaplus | Confirmed · 2 sources |
| Saunier Duval Themaplus F 23 E | Themaplus | Confirmed · 2 sources |
| Saunier Duval Combitek C 23 E | Combitek | Confirmed · 2 sources |
| Saunier Duval Combitek F 23 E | Combitek | Confirmed · 2 sources |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 05726600 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Locate the reference printed on the body of the safety valve you have installed: it should indicate 05726600.
- Check your boiler model on the nameplate and look for it in the list of compatible models on this page.
- Compare the connections and the body with the original part before installing.
- If you have any doubts, send us a photo of the screen printing via WhatsApp and we'll confirm it for you before you purchase.
Symptoms and faults resolved by safety valve 05726600
The safety valve releases pressure when the circuit exceeds its set point. These are the typical symptoms and what to do:
The valve suddenly releases water and empties part of the circuit, and then the system needs to be refilled.
Cause: If the seat does not recover the seal after having tripped once, it continues to drain water even though the pressure has already dropped to a normal value.
After a discharge, check if the dripping continues once the pressure has returned to its normal value; if it doesn't stop, the seat is not closing.
A ring of dry lime appears under the discharge pipe, although it is not dripping at the moment.
Cause: It indicates that the valve has released water at some point in the past, usually due to a sudden pressure spike in the circuit.
Check the date of the last maintenance of the boiler; an isolated pressure spike doesn't always mean the valve is faulty.
The pressure gauge shows a normal pressure, but occasionally a brief spurt comes out of the pipe.
Cause: Over time, lime deposits on the seat can prevent a perfect seal and allow small amounts of water to pass intermittently.
Bleed the air from the radiators: the accumulated air in the circuit can also cause pressure spikes that activate the valve without it being faulty.
The manual bleed lever or button is stiff and difficult to move.
Cause: The mechanism may have seized due to lack of use or internal deposits, which compromises its ability to open when truly needed.
With the system cold, carefully operate the manual bleed; if it doesn't give way with moderate pressure, do not force it and consider replacing it.
It makes a fine whistling sound next to the valve when the boiler is running.
Cause: A small passage of water or air through a seat that doesn't close completely generates that characteristic whistling sound.
Wipe the body of the valve and the discharge pipe with a dry cloth to locate if there is moisture right at the point of the noise.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for Saunier Duval safety valve 05726600
- OEM reference
- 05726600
- Brand
- Saunier Duval
- Type of part
- Safety Valves
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
- The manufacturer of this part is unknown: there is no label or external source to confirm it.
- The code or the specific reference of the component is not known.
- The part has no silkscreen or legible marking in the available photos; there is no established technical data.
- The current catalog titles it as 'Anti Return' but it is classified under the safety valves category; check the actual function of your part before ordering it.
- The reference 05726600 and the brand Saunier Duval are the ones listed in today's catalog, without confirmation on the actual part; check your boiler model in the compatibility list.