What to do if the cast iron radiator leaks
With the arrival of the winter heating season, leaking cast iron radiators have become a common problem faced by many families. Water leakage not only affects the heating effect, but may also cause property damage. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the causes and solutions of cast iron radiator leakage, and provide structured data for reference.
1. Common causes of water leakage in cast iron radiators

According to recent online discussions and repair cases, the main causes of cast iron radiator leakage include:
| Reason type | Proportion | Typical performance |
|---|---|---|
| The interface is loose | 35% | Water leakage from pipe joints |
| corrosion perforation | 28% | Rust spots appear on the surface of the radiator |
| Seal aging | 22% | Water dripping from valve |
| Water pressure is too high | 10% | Sudden burst and leakage |
| other reasons | 5% | Improper installation, etc. |
2. Emergency measures
When you find a radiator leaking, you should take the following measures immediately:
1.close valve: First, close the water inlet valve and return valve of the leaking radiator, and cut off the water source.
2.Drainage and pressure reduction: Open the vent valve of the radiator to release the internal pressure.
3.Temporary plugging: For small area leakage, waterproof tape or epoxy resin can be used for temporary sealing.
4.Water damage prevention: Place a water container under the leak to prevent water damage to the floor.
3. Professional maintenance plan
Depending on the cause of the leak, the following repair solutions can be taken:
| Cause of water leakage | Repair method | Estimated cost |
|---|---|---|
| The interface is loose | Retighten or replace gasket | 50-150 yuan |
| corrosion perforation | Weld repair or replace radiator | 200-800 yuan |
| Seal aging | Replace seals | 100-300 yuan |
| Water pressure is too high | Install pressure reducing valve | 150-400 yuan |
4. Preventive measures
To avoid water leakage from the radiator, it is recommended to take the following precautions:
1.Regular inspection: Check the condition of radiators and pipes before and after the heating season.
2.Anti-rust treatment: Treat the surface of the radiator with anti-rust paint.
3.water quality management: Use demineralized water to reduce corrosion.
4.pressure monitoring: Install a pressure gauge to monitor system pressure.
5. Recent hot topics on the Internet
According to the network data of the past 10 days, the following are high-frequency discussion topics related to radiator leakage:
| topic | Discussion popularity | Main point |
|---|---|---|
| DIY repair feasibility | high | It is quite controversial, so professional repair is recommended. |
| Radiator service life | in | It is generally believed that it needs to be replaced every 15-20 years |
| Comparison of new radiators | high | Steel radiators are more popular |
| Winter emergency maintenance | high | Emphasize prevention in advance |
6. Expert advice
1. For old radiators, it is recommended to perform preventive maintenance during the non-heating season.
2. Water leakage problems should be dealt with promptly to prevent small problems from developing into major failures.
3. Choose regular maintenance services to ensure maintenance quality.
4. Consider gradually replacing new radiators to improve heating efficiency and safety.
Through the above analysis and suggestions, we hope to help you effectively deal with the leakage problem of cast iron radiators and ensure safe and stable heating in winter. In case of serious water leakage, please contact professional maintenance personnel immediately.
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