Exhaust valve is applied to the independent heating system, central heating system, heating boiler furnace, central air conditioning, floor heating, solar heating system pipe exhaust, etc. Because usually have certain air dissolved in water, and air solubility with the rising of temperature decrease, so the water in the process of cycle gas gradually separated from the water, and gradually come together to form a big bubble column, even because there is water, so often have gases. Exhaust valve including air conditioning vent valve, solar energy exhaust valve, heating vent valve, boiler exhaust valve. The exhaust valve ( FIG. 1) Exhaust valve working principle: when the system has a gas overflow, gas will be along the pipeline social climbers, and eventually gathered at the highest point of the system, and high exhaust Industrial Valves is generally installed in the system. When the gas into the vent valve cavity gathered in the upper portion of the exhaust valve, with the increasing of the gas inside the valve, pressure rise, when gas pressure is greater than the system pressure, the gas can make the cavity of the water drops, buoy with water level drops, open the vent. Gas, after the water level rise, buoy also rose, close the vent. Likewise, when negative pressure is formed in system, valve chamber in the water drops, vent open, because the outside atmospheric pressure is greater than the system pressure, so the atmosphere through the vent into the system, avoid the harm of negative pressure. Such as tighten exhaust Industrial Valves cap on the valve body, stop exhaust exhaust valve, under normal circumstances, the bonnet should be in an open position. The installation of exhaust Industrial Valves point: 1. Exhaust valve must be installed vertically, namely must ensure that its internal buoy is in vertical position, so as not to affect the exhaust; 2. Exhaust valve in the installation, it is best with isolation valve installation, so when you need to tear open the discharge valve for maintenance, the guarantee system of airtight, water does not drain; 3. The highs of the exhaust valve is generally installed in the system, is helpful to improve the efficiency of exhaust.
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