How to tighten the radiator exhaust valve: Operation guide and analysis of common problems
With the arrival of the winter heating season, the operation of the radiator exhaust valve has become the focus of attention for many families. Correct exhaust can effectively improve heating efficiency and avoid problems with radiators that are not hot or make abnormal noise. This article will introduce in detail the operating steps, precautions and relevant hot data of the entire network in the past 10 days to help you solve the problem quickly.
1. Hot topics related to radiator exhaust in the past 10 days across the Internet
| Ranking | hot topics | Search volume (10,000) | main focus |
|---|---|---|---|
| 1 | What to do if the radiator exhaust valve leaks | 18.5 | Emergency handling and maintenance methods |
| 2 | How to solve the problem that the exhaust valve cannot be tightened | 15.2 | Tool selection and rust prevention tips |
| 3 | The difference between automatic exhaust valve and manual valve | 12.8 | Purchasing suggestions and comparison of advantages and disadvantages |
| 4 | Why the radiator is still not hot after exhaust | 9.3 | Troubleshooting system pressure issues |
2. Operation steps of radiator exhaust valve
1.Preparation: Turn off the power to the heating system and prepare a screwdriver, towel and basin (to catch water leaks).
2.Position exhaust valve: Usually located on the top of the radiator, in the shape of a screw or a knob. Some models require a screwdriver to operate.
3.rotate slowly: Rotate 1/4 turn counterclockwise (about 90 degrees) and stop when you hear the "hissing" exhaust sound. Never remove it completely!
4.Observe drainage: After the gas is exhausted and the water comes out stably, immediately tighten the valve clockwise.
3. Solutions to high-frequency problems
| Problem phenomenon | Possible reasons | Solution |
|---|---|---|
| The valve cannot be turned | Rust or scale buildup | Spray WD-40 lubricant and let it sit for 10 minutes |
| Continuous water leakage | Seal aging | Replace the valve core or use raw material tape to temporarily seal |
| Not hot after exhaust | Insufficient system pressure | Contact the property management company to check the water supply pressure (should reach 1.5Bar) |
4. Safety precautions
1. It is strictly prohibited to operate when the heating system is running to avoid high temperature burns.
2. In old communities, it is recommended to close the indoor main valve in advance to prevent water pressure shock.
3. If there is a large amount of water spray, immediately close the valve and contact professional maintenance.
5. Expert advice
According to network maintenance data statistics, 80% of exhaust failures are caused by improper operation. It is recommended to record a video to record the rotation angle during the first operation. If the resistance exceeds 2kg·f (approximately the force of twisting the bottle cap), stop immediately. New smart exhaust valves (such as magnetic suction type) can reduce operational risks and are suitable for installation in elderly homes.
With the above structured guidance, you can complete your venting operation safely and efficiently. If the problem is still unresolved, it is recommended to make an appointment with a professional HVAC technician for home service through a formal platform (the average cost is 30-50 yuan/time).
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