Exhaust valves are usually installed at high points or areas where gas is prone to accumulate in the system. When gas accumulates in the system, it will rise along the pipeline to the exhaust valve.

Exhaust valves are usually installed at high points or areas where gas is prone to accumulate in the system. When gas accumulates in the system, it will rise along the pipeline to the exhaust valve. The exhaust valve is opened automatically or manually to release gas from the system. The specific working principle may vary depending on the type of exhaust valve (such as float type, lever type, spring type, etc.), but the basic principle is to use the density difference between gas and liquid and the principle of buoyancy, so that the exhaust valve opens the exhaust channel when gas is present and closes the channel when liquid is filled to prevent liquid leakage.

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