German SODECO valves SODECO models SODECO prices

SODECO valves are devices used to vent air in HVAC systems during operation. During the operation of HVAC systems, gases released by heating water, such as hydrogen and oxygen, can cause numerous adverse effects that damage the system and reduce thermal efficiency. If these gases are not vented in time, they can lead to many negative consequences, such as: corrosion caused by oxidation; formation of air pockets in radiators; poor and unbalanced hot water circulation, causing partial lack of heat in some radiators; noise when pipes operate with air; cavitation in circulation pumps. Therefore, waste gas in the system must be discharged in time, highlighting the important role of automatic air vent valves.

SODECO valve working principle

When the system is filled with water, gases in the water continuously escape and accumulate at the highest point due to changes in temperature and pressure. When the gas pressure exceeds the system pressure, the float drops, driving the valve stem downward, opening the valve port, and allowing continuous gas discharge. When the gas pressure is lower than the system pressure, the float rises, driving the valve stem upward, closing the valve port. The automatic air vent valve operates in this continuous cycle.

SODECO valve applications

Valves installed on controllers in the system architecture to release air pockets generated in heating systems and water supply pipelines, widely used in manifold distributors, radiators, floor heating, air conditioning, and water supply systems.

SODECO valve installation

1) Automatic air vent valves must be installed vertically to ensure that the internal float remains in a vertical position, otherwise it may affect air venting; 2) When installing automatic air vent valves, it is best to install them together with isolation valves, so that when the air vent valve needs to be removed for maintenance, the system's seal is maintained, preventing water from leaking out; 3) Automatic air vent valves are generally installed at pipe sections where air tends to accumulate, such as the highest point of the system or the highest point of a pipe section, to facilitate smooth air venting.

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