applicable medium：gas

适用介质：汽

working temperature：ordinary temperature

工作温度：普通温度

material：carbon steel，stainless steel

材料：碳钢，不锈钢

type of connection：flange

连接方式：法兰

construction：tubular

结构：管状

pressure environment：ordinary pressure

压力环境：普通压力

function：Ddcv double lobe

功能：Ddcv 双瓣

seal form：glａnd packings globe valve

密封形式：压盖填料截止阀

flow direction：reversing

流动方向：反向

standard：GB

标准：GB

application：industrial

应用：工业

transport package：plywood case

运输包装：胶合板箱

specification：45KG/PC

规格：45KG/PC

brand：GUTE

商标：GUTE

The air valve is a special valve designed to prevent transient decompression waves from producing negative pressure in the tube.It is usually installed in the normal operation of the pipeline when the hydrodynamic pressure is low, transient flow process, there may be liquid column separation high point position.Air is drawn in when the pressure in the pipe is lower than atmospheric, and is expelled when the pressure in the pipe rises higher than atmospheric.During venting, the valve can be closed automatically when the pipe is filled with liquid, which is not allowed to escape into the atmosphere.


空气阀是一种用于防止瞬态减压波在管道内产生负压的专用阀。它通常安装在管道正常运行时流体动压较低，瞬态流动过程中，可能存在液柱分离高点的位置。当管道内的压力低于大气时，空气被吸入，当管道内的压力高于大气时，空气被排出。在排气过程中，当管道中充满液体时，阀门可以自动关闭，不允许液体逸到大气中。

The single-port air valve is used for exhaust in independent heating system, central heating system, heating boiler, central air conditioning, floor heating and solar heating system.Because there is usually a certain amount of air dissolved in the water, and the solubility of the air decreases with the increase of temperature, in this way, in the process of water circulation, the gas gradually separates from the water and gradually gathers together to form large bubbles or even gas columns. Because of the supplement of water, there are often gases produced