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Quick exhaust valve < Large diameterExhaust valve& gt; For independent heating systems,The central heatingSystem, heating pot stove, central air conditioning, floor heating andSolar heating systemWait for pipe exhaust. Because water usually contains a certain amount of air, and airsolubilityAs the temperature increases, the gas decreases, so that as the water circulates, the gas gradually separates from the water and comes together to form large bubbles or even columns of gas. For this reason, the word \"exhaust valve\" has been extended to solve many problems in daily life.