
Kramer 1/2" Safety Valve For Sime Brava Slim 30 BF
If you notice continuous dripping or that the valve does not discharge when the circuit pressure exceeds the limit, you may need the Kramer 1/2" Safety Valve for Sime Brava Slim 30 BF, reference 6040225. This valve is designed to release water in case the pressure exceeds 3 bar, thus protecting the system. It is compatible with several boilers from the Brava Slim range, such as the Brava Slim 25 BF and the Brava Slim HE 30, among others. It should be replaced when visible faults such as dripping or inability to discharge are present.
VAT included
Consult via WhatsAppSime boilers compatible with reference 6040225
Safety valve with reference 6040225. Eight confirmed compatibilities: Brava Slim 25 BF and Brava Slim 30 BF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Sime Brava Slim 25 BF | Brava Slim | Contrasted |
| Sime Brava Slim 30 BF | Brava Slim | Contrasted |
| Sime Brava Slim HE 30 | Brava Slim | Contrasted |
| Sime Brava Slim LN 25 | Brava Slim | Contrasted |
| Sime Brava Slim LN 30 | Brava Slim | Contrasted |
| Sime Murelle HE 30 | Murelle | Contrasted |
| Sime Planet HE 30 | Planet | Contrasted |
| Sime Praktica HE 25 | Praktica | Contrasted |
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 the reference 6040225 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.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 6040225. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the safety valve 6040225 resolves.
The safety valve releases pressure when the circuit exceeds its setting. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
Water is constantly dripping from the discharge tube, even when the boiler is cold.
Cause: The valve seat does not seal properly, usually due to a trapped impurity or wear of the internal gasket.
Before replacing it, check the air pressure of the expansion vessel with the circuit empty. If it is low, the valve will trigger more than usual without being faulty.
- 02
When the boiler reaches temperature, a jet of water comes out of the gas valve and then it stops.
Cause: The pressure in the circuit rises above the set point because the system does not properly absorb the expansion of the hot water.
Check the charge pressure of the expansion vessel and the cold filling pressure of the circuit before replacing the gas valve.
- 03
The valve does not release water even though the pressure gauge shows higher than usual pressure.
Cause: The internal mechanism gets stuck due to the accumulation of limescale or because it has not been activated for a long time.
Manually operate the bleed lever, if it has one, to check if it releases water before considering it blocked.
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 the safety valve Sime 6040225
- Catalogue reference
- 6040225
- Brand
- Sime
- Type of part
- Safety Valves
- Units in stock
- 4 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Manufacturer
- Kramer
- Connection
- 1/2"






