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O-ring seal for Ariston gas boiler ACO, UNO (990387)
O-ring seal is an essential component that ensures the tightness of connections in Ariston gas boilers, such as the ACO and UNO models. This O-ring prevents gas leaks, which is critical for the safe operation of the boiler. Proper installation and replacement of the O-ring will help maintain the functionality of your gas boiler and extend its lifespan.
Technical specifications
| Parameter | Value |
|---|---|
| Dimensions | 20*25*3 mm |
| Compatibility | 330000 ACO 32 MFFI 537064 ACO 27 MFFI 537634 UNO 24 MI 537636 UNO 24 MFFI |
How to choose the right O-ring seal
When selecting an O-ring, it is important to pay attention to the following points:
- Dimensions of the O-ring: ensure that the dimensions (20*25*3 mm) match the original.
- Compatibility with your gas boiler model: check that your boiler model is listed in the compatibility section.
- Material: choose rings made from high-quality materials that are resistant to high temperatures and aggressive environments.
Possible causes of failure and prevention methods
O-rings can fail for the following reasons:
- Wear from high temperatures and pressure.
- Chemical exposure to aggressive substances (e.g., from gases).
- Improper installation, which can lead to deformation.
To prevent premature wear of the O-ring, it is recommended to:
- Regularly check the condition of connections and seals.
- Ensure proper installation and use of the boiler according to the instructions.
- Timely replace worn parts.
Difficulty of replacing the O-ring seal
Replacing the O-ring is a relatively simple procedure that can be done by yourself. Here is a step-by-step guide:
- Disconnect the gas boiler from the power supply and shut off the gas supply.
- Remove the boiler cover to access the connections.
- Remove the old O-ring by carefully pulling it out of the groove.
- Ensure that the groove is clean and undamaged.
- Install the new O-ring in place.
- Reassemble the boiler and check for leaks.
The difficulty of replacing this O-ring is rated as low, and it can be done without special tools.