原文：
一：疏水阀的定义： 疏水阀是用于蒸汽管网及设备中，能自动排出凝结水、空气及其它不凝结气体，并阻水蒸汽泄漏的阀门。根据蒸汽疏水阀工作原理的不同， 蒸汽疏水阀可化为以下三种类型：机械型：依靠蒸汽疏水阀内凝结水液卫高度的变化而动作，1．蒸汽疏水阀安装在蒸汽加热设备与凝结水回水集管之间。开车时，桶在底部，阀门全开。凝结水进入疏水阀后流到桶底，充满阀体，全部浸没桶体，然后，凝结水通过全开阀门排至回水集管。2．蒸汽也从桶体底部进入疏水阀，占据桶体内的顶部，产生浮力。桶体慢慢升起，逐渐向阀座方向移动杠杆，直到xx关闭阀门。空气和二氧化碳气体通过桶体的排气小孔，聚集在疏水阀的顶部。从排气孔排出的蒸汽，都会因疏水阀的散热而凝结。3．当进来的凝结水开始充满桶体时桶体开始对杠杆产生一个拉力。随着凝结水位不断升高，产生的力不断增加，直到能够克服压差，打开阀门。4．阀门开始打开，作用在阀瓣上的压差就会减小。桶体将迅速下降，使阀门全开。积聚在疏水阀顶部的不凝性气体先排出，然后凝结水排出。水流从桶体流出时带动污物一起流出疏水阀。凝结水排放的同时，蒸汽重新开始进入疏水阀，新的一个周期又开始了。 二：控制阀： 控制阀是一种利用水自润式阀体，无须另加机油润滑，如遇主阀内零部件损坏时，请按下列指示进行拆卸。（注：内阀内一般消耗损伤品为膜片和○型圈，其它内部零件损伤甚少）1.先将主阀前后端闸阀关闭。2.将主阀盖上的配管接头螺丝松开,释放阀内压力。3.将所有螺丝取下，包括控制管路中的必要铜管的螺帽。4.取阀盖和弹簧。5.将轴芯、膜片、活塞等取下，切勿损伤膜片。6.将以上各项东西取出后，检查膜片及○型圈是否损坏；如无损坏请勿再分自行争其内部零件。7.如发现膜片或○型圈有损坏，请将轴芯上的螺帽松脱，逐浙分解出膜片或型圈，取出后重新换上新的膜片或○型圈。8.详细检视主阀内部阀座、轴芯等是否有损坏，若有其它杂物在主阀内部将其清理出。9.依反向是顺序将更换后的零部件组合装好主阀，注意阀门不能有卡阻现象。10.请参考安装操作注意事项重新用。 二者区别显而易见，一个是输出一个是输入。

“ The difference between traps and control valves ”是由提供的国际阀门新闻，译文仅供参考。另外，中国疏水阀网还提供相关产品搜索： 、 、 、 、 等。

译文：
A: Traps definition: Steam traps are used for network and devices can automatically discharge condensed water, air and other non-condensing gas, and water resistance steam leak valve. According to the principle of different steam traps, steam traps can be turned into the following three types: mechanical-type: to rely on steam trap condensate liquid within the Methodist movement to changes in height, 1. Steam traps installed in the steam condensate return water heating equipment and pipes between sets. Driving, at the bottom of the barrel, the valve fully open. Condensate to flow into the barrel after the end of the trap, full of body and all submerged barrel, and then, through the fully open valve condensate collection arrangements to return water pipe. 2. Body from the bottom of steam drum into the trap, take the top of a barrel body, resulting in buoyancy. Barrel rising slowly and gradually move to the seat lever, until completely close the valve. Air and carbon dioxide gas through the barrel body of the exhaust hole, gathered at the top of the trap. The steam from the exhaust vent will trap the heat and condensation due. 3. When the incoming condensate began when the barrel is full of drum began to produce a pull lever. With the condensation water level rising, increasing the force generated, until it can overcome the pressure, open the valve. 4. Valve begins to open, the role of pressure on the valve flap is reduced. Barrel will decrease, so that the valve fully open. Accumulate in the traps at the top of the first non-condensable gas discharge, and then condensation of water discharged. Outflow of water from the barrel when the lead out of the trap with dirt. Condensate discharge at the same time, steam re-entered the trap, a new cycle has begun. 2: Control Valves: Control valve is self-lubricating by means of a body of water without additional lubrication oil, the main valve parts in case of damage, please follow the instructions to demolition. (Note: the general consumption of injury within the valve products for the diaphragm and ○-ring, little damage other internal parts) 1. First valve before and after the end of the main valve closed. 2. The main valve with the cover screw loose fittings, pressure release valve. 3. Will remove all the screws, including the control of the necessary copper piping in the nuts. 4. Take valve cover and spring. 5. The shaft, diaphragm, piston, etc. removed, do not damage membranes. 6. After removing the above stuff, check diaphragm and ○-ring is damaged; Do not be divided without damage to the internal parts on their own struggle. 7. If found ○ diaphragm or ring is damaged, please loose nut on the shaft, it gradually decomposed patch or ring, remove and replace the new patch or re-○-ring. 8. Details View inside the main valve seat, shaft, etc. for damage, if other debris within the main valve to clean out. 9. By the reverse is the order of replacement parts to install a good combination of the main valve, the valve can not have jamming attention to the phenomenon. 10. Please refer to installation to attention again to use. Obvious difference between the two, one is the output one is input.