B-type exhaust valve
Exhaust valves play a crucial role in various pipeline systems, ensuring smooth operation and preventing potential issues caused by air accumulation. They are widely used in independent heating systems, central heating systems, heating boilers, central air conditioning, underfloor heating, solar heating systems, and other pipeline applications.
Working Principle
When gas escapes from the system, it rises along the pipeline and eventually accumulates at the highest point of the system. Exhaust valves are typically installed at this highest point. As gas enters the valve cavity and accumulates at the upper part of the exhaust valve, the pressure inside the valve increases. When the gas pressure exceeds the system pressure, the water level in the cavity drops, and the float descends with the water level, opening the exhaust port. Once the gas is completely discharged, the water level rises, and the float also rises, closing the exhaust port. Similarly, when a negative pressure is generated in the system, the water level in the valve cavity drops, and the exhaust port opens. Since the external atmospheric pressure is greater than the system pressure at this time, air will enter the system through the exhaust port to prevent the harm of negative pressure. If the valve cap on the valve body of the exhaust valve is tightened, the exhaust valve stops exhausting. Under normal circumstances, the valve cap should be in the open state. Exhaust valves can also be used in conjunction with isolation valves for easy maintenance.
Inquiry
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