How the bleed valve works - how to deflate the radiator

The air release valve, also known as the exhaust valve, is a standard accessory for the radiator and is also the most commonly used radiator valve for deflation. It is generally divided into manual air release valve and automatic air release valve. The manual air release valve needs manual operation for the whole process and is rather troublesome. It has gradually faded out of the market. At present, the most popular automatic air release valve is divided into domestic and imported, domestic Drips and leakages often occur during the use of air release valves, and the quality of imports is relatively better.
Why does the radiator need to be deflated?
Radiator gas will enter the heating pipe during the water supply process. When the gas is congested, it will cause the heating to be not hot. Therefore, a gas release valve should be installed above the radiator to remove the gas and make the heating system circulate smoothly.
How to vent the radiator?
Manual bleed valve deflation method: Manual bleed valve above a lever, the side has a small hole, with a flat screwdriver to twist the lever, so that the hole is aligned with the deflation outlet began to deflate, Always close the vent valve after it has been drained.
Automatic bleed valve, deflation is completely automatic, no manual operation, its working principle is: When the system has air, the gas gathers in the upper part of the exhaust valve, the valve gas accumulation, the pressure rises, when the gas pressure is greater than the system pressure At that time, the gas will cause the water in the cavity to fall. The buoy will fall along with the water level and open the exhaust port. After the gas is exhausted, the water level will rise and the buoy will rise, closing the exhaust port. If the bonnet on the valve body is tightened, the exhaust valve will stop exhausting. Normally, the bonnet should be open.
The role of the automatic exhaust valve: During the operation of the HVAC system and the HVAC system, many adverse effects of gases such as hydrogen and oxygen released from the heating of the water can damage the system and reduce the thermal effect. If these gases cannot be timely Excluding will have many bad consequences. Such as: corrosion caused by oxidation; the formation of airbags in the radiator; hot water circulation is not smooth and unbalanced, so that some radiators do not heat locally; the noise of the pipeline running with air; the vortex phenomenon of the circulating pump. Therefore, the exhaust gas in the system must be discharged in time, which shows the important role of using an automatic exhaust valve.
The use of automatic air release valve, like the purchase of radiators, must choose the brand. For example, the top ten brands of radiators, Rubens, is equipped with the world's most advanced, UK imported automatic air release valve, 24 hours automatic intelligent deflation, and the room is permanently warm. This automatic air release valve adopts manual and automatic A design, double insurance, mute exhaust, completely solved the problem of drip and blockage of domestic automatic air release valve, effectively extend the service life of the radiator, and improve the cooling efficiency.

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Technical data sheet

 

Technical Data

Min                            Max                     Test Method

 

Water-Soluble Content [%]                                                              0.5                   DIN EN ISO 787 Part 3 (1995)

Sieve Residue (0.045mm) [%]                                                          0.1                   DIN 53195 (1990)

PH Value                                                          7.0                               10                    DIN EN ISO 787 Part 9 (1995)

Free Sulfur [%]                                                                                   0.05                  DIN 55913 (1972)

105°C Moisture (After Prod.) [%]                                                    1.0                   DIN EN ISO 787 Part 2 (1995)

Oil Absorption [g/100g]                                 30.0                           40.0                  DIN EN ISO 787 Part 5 (1995)

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