exhaust valve used in duct exhaust system, such as independent heating system, district heating system, heating boiler, central air conditioning, floor heating and solar heating system. Because the water is usually dissolved in a certain amount of air, air solubility decreases with the rise of temperature, and the gas in the process of circulation gradually separated from water, even gradually gathered together to form large bubbles air column. Due to replenish water, often produce gas. Exhaust valve is divided into heating type, tiny, rapid type, complex, etc. Exhaust valve in the pipe system is indispensable accessories, are widely used in boilers, oil and gas, and water supply and drainage pipeline. It is usually installed on high ground or elbow, in order to eliminate excess gas in the pipeline, pipeline efficiency and reducing energy consumption. In HVAC systems and HVAC system during operation, the release of gas (water For example, hydrogen, oxygen, etc. ) Caused many adverse effects will damage the system and reduce the heating effect. If the gas is not discharge in time, will happen a lot of gas. Adverse consequences. Such as: oxidation caused by corrosion; Formed in the radiator air bags; Imbalance of hot water circulation, make some local radiator is not hot; The noise of the pipe run time; Circulation pump of the eddy current phenomenon. Working principle of the exhaust Industrial Valves when the composite exhaust valve is in a state of exhaust, buoy due to gravity and one end of the rod, and tilt lever, and the contact between rod and vent part in clearance, and through the air vent through the gap. Discharge, when the air discharge, water level rise, float float under the buoyancy of water, and gradually on the vent lever on the seal face, until the entire vent completely blocked. Exhaust valve fully closed now. The advantages of the exhaust Industrial Valves exhaust valve of the buoy PP material with low density, even in high temperature water for a long time not out of shape. Don't make it difficult to buoy activity. Buoy lever made from hard plastic. Lever and buoy and support the connection between the movement through connection, so in the long run will not rust, cause system can't work and leaking. Leverage the seals part is spring loaded, and with the movement of the lever stretching and contraction, to ensure that the seal without exhaust. When installing exhaust valve, with the best cut-off valve installed together. When you need to remove the exhaust valve for maintenance, the system can be sealed and water will not flow out. Low density PP material, even if will not deformation in the high temperature water for a long time.

os & y valve fire protection double flanged gate valve processes have been widely used to produce cast iron gate valve such as os&y valve, os&y gate valve, and y gate valve etc.
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