原文：
阀门的安装指南及连接或焊接方法： 　　请您务必记住所推荐的阀门的用途是什么？并对所应用的环境进行分析，这样才能决定最适合于安装什么样的阀门。在安装正确的阀门之前，为了防止损坏阀门，并保证充分发挥阀门的工作性能，请阅读一下安装指南。 　　阀门的安装指南： 　　1、先沿着垂直方向切割管道，并修整、去除毛刺，测量管径。 　　2、使用纱布或钢丝刷xx管道和切割部位，使其金属表面发光发亮。建议不要使用钢丝绒。 　　3、在管道的外面和焊接罩的内部涂上焊剂，焊剂必须xx覆盖焊接表面。请有节制地使用焊剂。 　　4、要确保阀门处于开启状态。先对管道加热。尽可能多的将热从管道传递到阀门。避免延长阀门本身的加热时间。 4a.银钎焊的方法：对需要进行钎焊的部件进行组装。如果允许涂上焊剂的部件处于直立状态，那么焊剂中的水分会蒸发掉，而干燥的焊剂很容易脱落，致使暴露的金属表面容易被氧化。在进行连接组装时，要将管道插入管套直到遇到阻挡为止。组装是要保证有稳固的支撑，使得整个钎焊操作过程中能够保持在直线位置。 注：对于1英寸或更大公称通径的阀门，一次性将连接部件加热到所需温度比较困难。为了在整个大面积上保持正常的温度，通常情况下需要两个焊枪。建议对整个管套区域进行适当的预热。建议采用乙炔火焰对连接部件进行加热。首先从离阀门1英寸的地方开始对管道进行加热，然后围绕着管道短距离上下交替对管道进行火焰烘烤，并以适当的角度旋转管道，避免烧穿管道。火焰要连续运动，不允许停留在某一点上。 在阀门的套筒底座用火焰进行烘烤。加热要均匀，用火焰对阀门及管道进行火焰烘烤的过程要延续到阀门上的焊剂不再发出声音。不要对阀门过度加热。 当焊剂变成液态并且在管道和阀门上呈现半透明状态时，开始将 火焰沿着连接部件的轴线进行进退烘烤，以保持连接部件、特别是阀门套筒底座部位的热度。 　　5、使用适量的焊料：如果使用线状焊料，那么对公称通径为3/4英寸的阀门就要采用3/4英寸的焊料，等等。如果使用的焊料太多，那么有些焊料可能会流过管道阻挡部位，并堵塞密封区域。在安装连接部件时，可以看到焊料和钎焊合金继续流动 5a.银钎焊法：将焊线或焊杆点在阀门里的管道套座上。当焊杆或焊线进入连接处时要将火焰从其上面移开。当合金流进连接处时，要前后移动火焰。达到适当的温度后，合金将迅速容易地流进管道外壳和阀门套管之间的空间。连接处被充满后，就会看到焊接合金的边缘。 　　6、当焊料处于粘滞状态时，用刷子把多余的焊料xx干净。焊料冷却后，将一条嵌条环绕在阀门的端口。阀门 进口泵 工业洗衣机 　　1）银钎焊：如果采用不同的钎焊材料，其钎焊连接的强度并不见得很好，强度大小取决于管道外壳与阀门套管之间正常的、大范围的清洁维护工作。银钎焊的阀门套管的内部直径的机械公差和表面光滑度要求非常xx，以确保有足够的附着力。 　　注意：在清理和xx过程中，应该细心的观察清洗介质的残留物。在已经弄脏或不正确清洗的表面上进行钎焊，焊接效果就很难令人满意，因为银钎焊合金并不会流过或粘接在氧化物上，而油污的表面及暴露的、容易氧化和导致空隙和杂物排斥焊剂。 　　2）螺纹连接：硬渣、污物或任何外部物质在管道内积累都可能妨碍阀门的工作效率并严重损坏阀门的关键部件。必须用空气或蒸气对管道内部进行彻底清洗。 　　当对管道进行攻丝时，要测定管道螺纹的尺寸和长度，避免将管道塞满阀座和阀瓣。 　　彻底清洗螺纹末端，xx任何有害的钢或铁沉淀物。如果要时焊接更牢固，就要使用特氟隆带或管道粘接剂。在管道螺纹上只能少量使用管道粘接剂，但是在阀门螺纹上{jd1}不能使用管道粘接剂。不要让任何管道粘接剂流入阀体内，以避免损坏阀瓣和阀座。 　　安装前，切断通过阀门的流体，以使阀门工作正常。安装前要xx关闭阀门。将扳手套在靠近管道的六角螺栓头上避免可能产生的变形。安装阀门后，要支撑住管道：下垂的管道会使阀门产生变形而导致失败。 　　3）法兰连接：为了确保正确进行阀兰连接安装，需要遵循如下几个步骤。首先细心地清洗连接处，然后，在底座部松散地装上两个或三个螺栓。接着，小心的将垫片插入连接处。底部螺栓有助于对垫片进行定位，并保持恰当的位置。然后插入螺栓要采用交叉旋紧的方式，不要采用环绕旋紧的方式，这样有助于xx过于集中的压力)。在正常使用一段时间后，要检查核对所有的螺栓是否旋紧，并进行必要的再旋紧。

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译文：
Valve installation guide and connection or welding methods: Please be sure to remember the recommended valve used for? And applied to analyze the environment, so as to determine the most suitable for what kind of valve installation. Before you install the correct valve to prevent damage to the valve and the valve to ensure full performance, please read the installation guide. Valve Installation Guide: 1, the first vertical cut along the pipeline, and finishing, burr diameter measurement. 2, use gauze or wire brush to remove pipe and cut to bright metal. Not recommended to use steel wool. 3, in tube inside out and welding hood Apply flux soldering flux must be completely covered surface. Please use sparingly flux. 4, to ensure that the valve is open. Heat to tube first. As much as possible the heat from the tube into the valve. Avoid prolonged heating of valve itself. 4a. Silver Brazing Method: soldering required to assemble the parts. Apply flux to the parts, if allowed in the upright position, then the flux in the water will evaporate, and dried flux is easy to fall off, exposing metal surfaces to oxidation. Make the connection assembly, inserting tube set against the stop. The assembly should be firmly supported, made during the brazing operation can be maintained in alignment. Note: For 1-inch and larger valves, one-time components will be connected to temperature more difficult. In the large area to maintain the proper temperature, typically require two torch. Proposed to appropriate the whole socket area preheating. Recommended parts to be acetylene flame heating. First, from 1 inch away from where the valve on the pipeline began to heat, then pipe a short distance up and down around the turn of the pipeline fire baked, and the angle of rotation in an appropriate channel to avoid burn pipeline. Flame to be in continuous motion and not allowed to remain at some point. In the tube, flame to bake. Heat uniformly, with the flame on the valve and the pipeline to continue the process of baking the flame to the valve on the flux is no longer sound. Do not over-heating of the valve. When the flux into a liquid and in pipes and valves on the translucent state, began to fire along the axis of advance and retreat to connect parts baking, to keep the connecting parts, especially the base of valve socket parts of the heat. 5, using the appropriate amount of solder: If you use linear solder, then to the nominal diameter of 3 / 4 inch valve is necessary to use 3 / 4 inch of solder, and so on. If you use too much solder, then some solder may flow through the tube stop, and plug sealing area. Connected components in the installation, you can see the solder and brazing alloys continues to flow 5a. Silver Brazing Method: Apply brazing wire or rod at point where tube valve seat sets. When the welding rod or wire into the joint to flame away from. When the alloy flowing into the junction when the flame to move back and forth. Proper temperature is reached, the alloy will flow readily into the tube and the space between the valve casing. After the joint is filled, you will see the edge of welding alloy. 6, when the solder in the viscous state, with a brush to clean and remove excess solder. After the solder cooled, will a fillet around the valve port. Imports of industrial washing machine pump valve 1) Silver brazing: If you use different soldering materials, solder joint strength and not necessarily a good strength depends on the casing tube and the valve between the normal, wide range of cleaning and maintenance work. Silver brazing valve casing internal diameter of mechanical tolerances and surface smoothness requirements are very accurate in order to ensure adequate adhesion. Note: The cleaning and removal process should be observed residues of the cleaning medium. Already dirty or incorrect cleaning of the surface to be brazed, welded difficult to satisfactory results, because the silver alloy brazing or adhesive will not flow through the oxide, while the greasy surface and exposed, easily oxidized and lead to exclusion of gaps and debris flux. 2) Thread: hard, dirt or any foreign matter accumulated in the pipe can hinder the efficiency of the valve, and severe damage to key parts of the valve. With air or steam pipe internally with a thorough cleaning. When tapping on the pipe when the pipe thread to determination of the size and length, to avoid jamming pipe seat and disc. Thoroughly clean threaded end to remove any harmful steel or iron deposits. If you want to time joint, use teflon tape or pipe dope. Only a small amount of pipe threads, pipe dope is used, but absolutely can not use the valve thread pipe dope. Do not let any pipe dope into the valve body in order to avoid damage to disc and seat. Before installation, cut off thefluid through the valve, so that the valve is working correctly. Close valve completely before installation. Apply wrench to hex next to pipe to avoid possible distortion. After installation of valve to support the live channel: sagging pipe can distort the valve and cause failure. 3) Flange connection: In order to ensure proper installation of valves Lan connection requires several steps to follow. First, clean the joint carefully, and then, in the loosely fitted with two or three bolts. Then carefully insert the gasket into office. The bottom of the bolts will help locate the gasket and hold it in place. Then insert the bolts tightened by way of cross and not the way the bolts evenly, which helps eliminate concentrated pressure). In normal use for some time, to check all the bolts are tightened check and re-tighten as necessary.