如何保养阀门？

译文：
阀门的保养方法： 　　1、长期存放的阀门，应作定期检查，对外露的加工表面须保持清洁，清除污垢，存放时球阀应两端堵塞并处于开启状态，闸阀、截止阀、止回阀，通道的两端应堵塞并处于关闭状态，整齐地存放在室内通风干燥的地方，严禁堆置或露天存放。 　　2、安装前，必须仔细核对本阀标志的压力，通径是否符合使用要求，消除运输过程所造成的缺陷，并消除阀件的污垢。 　　3、安装时，可将阀门按连接方式直接装置在管路上。一般情况下，可安装在管路任意位置上，但需便于操作的检修，注意截止阀介质流向应是纵阀瓣下面往上流，升降式止回阀只能水平安装。 　　4、球阀、截止阀、闸阀使用时，只作全开或全闭，不允许做调节流量用，以免密封面受冲蚀，加速磨损。闸阀和上螺纹截止阀内有倒密封装置，手轮旋至最上位置拧紧，即可阻止介质从填料处泄漏。 　　5、球阀、截止阀、闸阀开、关时应用手轮，请勿借助杠杆或其它工具，以免损坏阀件。手轮顺时针旋转为关闭，反之为开启。 　　6、填料压盖的螺栓应均匀地拧紧，不应压成歪状态，以免碰伤阻碍阀杆运动或造成泄漏．　　 　　7、阀门在使用过程中，应经常保持清洁，传动螺纹必须定期润滑，发现故障时，应立即停止使用，查明原因清除故障。

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原文：
Valve Maintenance: 1, long-term storage of the valve, should be regularly checked, the processing of the exposed surfaces should be kept clean and remove dirt, store, and when the ball should be blocked at both ends is turned on, gate valve, globe valve, check valve, channel should be blocked at both ends and is turned off, neatly stored in a room ventilated, dry place, stacked or open storage is prohibited. 2, before installation, you must Filtercarefully check the pressure of the valve symbol, path meets application requirements, to eliminate defects caused by the transport process, and eliminate dirt valves. 3, installation can be connected directly by the valve installed in the pipeline. Under normal circumstances, can be installed anywhere in the pipeline, but need to facilitate the operation of the maintenance, pay attention to media flow valve should be vertical upward flow below the valve flap, lift check valves can only be installed horizontally. 4, ball valve, globe valve, gateBellow Seal Valve valve used, and only fully open or fully closed, are not allowed to do with regulating traffic to avoid sealing surface by erosion, accelerated wear. Valve and the screw down valve seal within the devices, hand wheel rotation to tighten the top position, you can prevent media leaks from the padding. 5, ball valve, globe valve, gate valve opening and closing should be hand wheel, lever or other tools do not help to prevent damage to valves. Hand wheel clockwise to shut down, contrary to open. 6, packing gland bolts should beWater Pump Control Valves tightened evenly and should not be pressed into twisted state, so that bumps impede movement or cause leakage of the valve stem. 7, the valve during use, should be kept clean, drive screw must be regularly lubricated, find fault, they should immediately stop using the clear identification of the reasons for failure.