原文：
　自动排气阀是一种安装于系统{zg}点，用来释放供热系统和供水管道中产生的气穴的阀门，自动排气阀广泛用于分水器、暖气片、地板采暖、空调和供水系统。 自动排气阀的工作原理：当系统中有空气的时候，气体聚集在排气阀的上部，阀内气体聚积，压力上升，当气体压力大于系统压力时，气体会使腔内水面下降，浮筒随水位一起下降，打开排气口；待气体排尽以后，水位上升，浮筒也随之上升，然而关闭排气口。如拧紧阀体上的阀帽，排气阀停止排气，在通常情况下，阀帽应该处于开启状态。也可以跟上海星瓯阀门生产的隔断阀配套使用，这样方便于排气阀的检修 自动排气阀的作用：暖通系统及暖通空调系统在运行过程中，水在加热时释放的气体如氢气、氧气等带来的众多不良影响会损坏系统及降低热效应，这些气体如不能及时排掉会产生很多不良后果。诸如：由氧化导致的腐蚀；散热器里气袋的形成；热水循环不畅通不平衡，使某些散热器局部不热；管道带气运行时的噪声；循环泵的涡空现象。所以系统中的废气必须及时排出，由此可见运用自动排气阀的重要作用。 1、单口排气阀 单口排气阀主要由阀体、阀门、上盖、阀杆、浮球、排气嘴等组成。用于小口径管道上(管子为φ50-200),它作为管道的排气作用,使管道不会出现闭气、气阻,如水泵停电时管内随时会出现负压力,自动吸气可保护管道安全。 2、复合式排气阀 复合式排气阀作用原理：当水进入管道时，塞头停在定位架下部，进行大量排气，当空气排完时，水进入阀内把球浮起传动塞头到关闭，停止排气。如管道在正常运转时自然会产生少量气体会聚到管内上部，到相当程度，阀内水位下降，浮球随时下降气体从小孔排出。如出现停电，停泵，管内水流空时，管内随时会出现负压力，浮球顺水下降，打开小孔带动大孔大量进气确保管道安全 3、快速排（吸）气阀 快速排（吸）气阀管道在运转时，浮球停在球碗底部，进行大量排气，当管内空气排完，水冲进阀内，经过球碗然后反应浮球，使浮球浮动关闭，管道在正常运转时，如有少量气体会集中到阀内到相当程度，阀内水位下降，浮球随之下降，气体从小孔排出。如水泵停止，随时会产生负压力，浮球随时下降，进行大量吸气确保管路安全 4、快速排进气阀 快速排进气阀设计合理，结构简单，体积小，排气量大，我厂在原基础上进行大量改进使KP型更xx。排气阀用于管道{zg}点或闭气的地方来排除管内气体来疏通管道，使管道运转正常，出水量达到设计要求，如不装此产品管内气体形成气阻管道出水量达不到设计要求。管道在运转时出现停电，停泵管道随时会出现负压力会引起管道振动或破裂，该排（吸）气阀就快速吸入大量空气，防止管道振动或破裂，确保管路安全 5、双口快速排气阀 双口快速排气阀工作原理：当需要排出管道内的气体时，应逆时针方向旋转阀杆，使其阀杆连同阀门上升，使管道内的空气在水的压强作用下进入体腔内，并从排气嘴排出，随之管道内的水充满体腔内，使浮球在水的浮力作用下，向上移动将排气嘴堵塞，达到自行密封，管道在正常行中，水中的空气在压强的作用下，不断排入排气阀的体腔上部，迫使浮球下降，离开原来密封位置，这时空气又从排气嘴排出，随之，浮球又恢复到原来位置自密封，因此，排气阀在正常工作中阀门始终是开着的，浮球不断重复上述动作，空气不断排出，当需要检修或清扫体腔时，应将阀门关闭。本排气阀，顺时针旋转阀杆时为关闭。 6、微量排气阀 微量排气阀在一般情况下，水中约含2VOL%的溶解空气，主输水过程中，这些空气由水中不断地释放出来，聚集在管线的高点处，形成空气袋(AIR POCKET),使输水变得困难，系统的输水能力可因此下降约5-15%。 此微量排气阀主要功能就是排除这2VOL%的溶解空气，并适合装置于高层建筑，厂区内配管，小型泵站用以保护或改善系 统的输水效率及节约能源。单杆式（SIMPLE LEVER　TYPE)微量排气阀，为一类似椭圆形阀体，内部所有零件包括浮球、杠杆、杠架、阀座、等均为304S.S不锈钢，内部使标准排气孔径1/16,适合用于PN16工作压力环境 7、污水复合式排气阀 污水复合式排气阀用于污水管道上的{zg}点或有闭气的地方，靠排除管内的气体来疏通管道，达到正常工作。如不装排气阀，管道随时出现起阻，是管道出水容量达不到设计要求，其次：其次：管道在运转时出现停电、停泵管道及时出现负压会引起管道振动或破裂，排（吸）气阀就迅速把空气吸入管内，防止管道振动或破裂。

“The use of automatic exhaust valve ”是由提供的国际阀门新闻，译文仅供参考。另外，中国旋塞阀网还提供相关产品搜索： 、 、 、 、 、等。

译文：
Automatic exhaust valve is installed at the highest point of the system used to release the heating system and water supply pipes produced cavitation valve, widely used in auto exhaust valve manifolds, radiators, floor heating, air conditioning and water supply system. Automatic exhaust valve works: When there is air, gases build up in the upper part of the exhaust valve, valve gas accumulation, pressure rise, when the gas pressure is greater than the system pressure, the gas will decrease the water cavity, float along with the water level down, open the exhaust port; to be drained of gas after the water level rises, float will also rise, but close the exhaust port. Tighten the valve as the valve cap, exhaust valve to stop the exhaust, in normal circumstances, the valve cap should be in the open. Ou can star with the Shanghai valve supporting the use of production cut off valve, so that the exhaust valve to facilitate maintenance The role of automatic exhaust valve: HVAC systems and HVAC systems during operation, the release of water in the heating gas such as hydrogen, oxygen and other adverse effects caused by damage many systems and reduce the thermal effect, these gases, such as not timely drain will have many adverse consequences. Such as: corrosion caused by the oxidation; radiator in the formation of air bags; water cycle is not smooth uneven, so some of the local non-thermal radiator; pipeline with gas running noise; circulation pump air vortex phenomenon. Therefore, the exhaust system must be discharged in time, we can see that the use of the important role of auto exhaust valve. 1, single-port exhaust valve Single-port exhaust valve by the valve body, valve cover, valve stem, float, exhaust nozzle and other components. For small diameter pipes (tubes for the φ50-200), its role as the exhaust pipe so that gas pipeline will not be closed, air resistance, such as the pump power failure occur at any time when the pipe negative pressure, automatic suction pipe to protect the safety . 2, composite type exhaust valve Composite exhaust valve action principle: When the water into the pipes, plug the lower part of the first stop in the positioning frame, for a lot of exhaust, when the air drained, the water, float the ball into the valve plug head to drive off, to stop the exhaust . In normal operation, such as when the pipeline will have a small amount of natural gas gathered into the upper tube, to a considerable extent, the water level dropped valve, float down any exhaust gas from the hole. The event of power failure, stop the pump, air flow tube, the tube at any time in the negative pressure, float down the water flows, a large hole to open a large number of holes driven into the air to ensure pipeline safety 3, Quick exhaust (suction) valve Quick exhaust (suction) valve pipe in operation, the float bowl stopped at the bottom of the ball, a great deal of exhaust air when the tube drained, the water rushed into the valve, then through the reaction of the ball float bowl, float floating close to pipeline in the normal running, if a small amount of gas will be concentrated in the valve to a considerable extent, the water level dropped valve, float along down, the gas discharged from the hole. Such as water pumps stop, at any time will have negative pressure, float down at any time, a great deal of inspiration to ensure pipeline safety 4, Quick exhaust valve into the Quick exhaust valve into the rational design, simple structure, small size, large displacement, I plant a lot of improvement on the original basis to make a more perfect type KP. The highest point of exhaust valve for the pipe or closed areas to exclude gas pipe gas to clear the pipe, so that pipeline is operating normally, the amount of water to meet the design requirements, such as do not install the product pipe effluent gas pipeline capacity of less than the formation of air resistance design requirements. Pipeline in operation when a power failure stopped the pump at any time in the negative pressure pipeline will cause vibration or pipeline rupture, the emission (absorption) on the rapidly absorbing large quantities of air valve to prevent vibration or pipeline rupture, to ensure pipeline safety 5, dual-port rapid exhaust valve Dual-port rapid exhaust valve works: When you need the gas discharge pipe should rotate counterclockwise stem, together with the valve stem to rise, so that the air inside the tubes in the water under pressure into the body cavity, discharged from the exhaust nozzle, along the water pipeline full body cavity, so that float in the water buoyancy, the upward move will be to plug the exhaust nozzle to achieve the self-sealing, pipe in the normal line, the water pressure of air in role, continuing into the body cavity of the upper exhaust valve, forcing float down, leaving the original sealing position, when the air and from the exhaust discharge nozzle, with the attendant, then float back to the original position from the seal, therefore, row work in the normal valve is always open valve, float repeated the action, air is discharged, when the need for repair or cleaning the body cavity, the valve should be closed. The exhaust valve, the valve stem clockwise to close when. 6, micro-exhaust valve Micro-exhaust valve under normal circumstances, the water contains about 2VOL% of dissolved air, the main water course, such air being released from the water gathered at the high point of pipeline, the formation of air bags (AIR POCKET), so that water more difficult, the system's water capacity could be reduced by about 5-15%, therefore. This trace function is to rule out the exhaust valve of this 2VOL% of dissolved air, and suitable for installation in high-rise buildings, factories in the region piping, small pumping stations to protect or improve water system efficiency and save energy. Single rod (SIMPLE LEVER TYPE) trace exhaust valve, a similar oval body, internal parts, including all float, lever, bar racks, seat, and so are 304S.S stainless steel, internal diameter of the standard exhaust 1 / 16, working pressure environment suitable for PN16 7, the sewage discharge valve compound Combined sewage discharge valve for the highest point of sewage pipes or where breath, by excluding the gas pipe to clear the pipe, to work properly. If not loaded exhaust valve, pipeline at any time from the block, is the water capacity of less than piping design requirements, followed by: followed by: pipeline in operation when power failure stops the pump suction pipe will be there to cause vibration or pipeline rupture, row ( suction) valve quickly from the air suction tube, to prevent vibration or pipeline rupture.