阀门的安装说明（中英文）

Apply flame to valve at base of socket. Heat uniformly, sweeping flame from valve to tube until flux on valve becomes quiet. Avoid excessive heating of valve.

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。
When flux appears liquid and transparent on both tube and valve, start sweeping flame back and forth along axis of joint to maintain heat on parts to be joined, especially toward base of valve socket.

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
Use just enough solder: with wire solder, use 3/4" for a 3/4" valve, etc. If too much solder is used, it may flow past tube stop and clog sealing area. When joint is filled, a continuous run of solder or brazing alloy will be visible.

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。
Silver Brazing Method: Apply brazing wire or rod at point where tube enters valve socket. Keep flame away from rod or wire as it is fed into the joint. Move flame back and forth as alloy is drawn into joint. When the proper temperature is reached alloy will flow readily into space between tube outer wall and valve socket. When joint is filled, a continuous rim of brazing alloy will be visible.

当焊料处于粘滞状态时，用刷子把多余的焊料清除干净。焊料冷却后，将一条嵌条环绕在阀门的端口。
Remove excess solder with small brush while plastic, leaving a fillet around end of valve as it cools.

银钎焊
SILVER BRAZING

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精确，以确保有足够的附着力。
The strength of a brazed joint does not vary appreciably with the different brazing materials, but depends to a large extent upon the maintenance of proper clearance between the outside of the tube and the valve socket. The interior dimensions of silver brazing valve sockets are machined to the closest tolerances and finished smooth to promote full capillary attraction.

注意：在清理和清除过程中，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。
NOTE: Care should be observed in cleaning and in removing residues of the cleaning medium. Attempting to braze a contaminated or improperly cleaned surface will result in an unsatisfactory joint. Silver brazing alloys will not flow over or bond to oxides. Oily or greasy surfaces repel fluxes, leaving bare spots which oxidize and result in voids and inclusions.


螺纹连接
THREADING

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。