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A Look at Uncommon Hydraulic Connectors

主要制造产品总经理Robert Mackey。

安装或修理液压压机时可能会出现许多问题。由于停机时间的费用是如此之大,因此必须迅速做出决定,并且由于安全性如此重要,因此这些决定必须是正确的。了解易于使用的选项可以使一切变得不同。

This article looks at less-common hydraulic adapters available from multiple suppliers. Knowing these connectors are available can decrease the cost of installations and repairs and increase the ease and sophistication of an installation. The connectors include: reducing flanges; gauge port adapters, gauge port options, and tees; flange adapters; flanged elbows and tees; gender changers; and miscellaneous changes and adaptions of standard parts.

Reducing flanges

减小法兰很容易获得,可用于优化系统中的流量。很多时候,标准化组件使用相同的端口大小适应多流量;一个例子就是泵。通常具有不同的内部配置,涵盖具有相同外壳端口大小的几个流速。由于流动转移到各个子系统,也可以降低流量。减少法兰减少配件的数量,最大程度地减少成本,维护和泄漏点。它们还降低了下游配件的尺寸和成本。减小法兰使连接看起来专业,不像圣诞树。很多时候,降低法兰的成本不超过非还原连接器。

Gauge port adapters, gauge port options, and tees

Gauge ports are helpful when trying to troubleshoot systems or determine when to replace a filter. Before working on components, the U.S. Occupational Safety and Health Administration requires that an operator know that the system is de-energized. Many companies monitor the system’s fluid condition to determine wear and replacement needs. Draining the system is sometimes required as well. Pilot pressures or an additional line are also sometimes needed. Adding gauge ports in flanges or gauge port adapters are a smart way to accomplish these tasks. If specified at the time of the original order, a gauge port can be added to most flanges very inexpensively, and many times they are in stock. If needed later, a gauge port adapter may be the easiest way to go. A gauge port adapter is a component that “sandwiches” between halves of a flange connection. It may add an inch (25 mm) to the spacing, and generally the port is in the side of the flange. Gauge ports can be NPTF, straight threads, BSPP, or other ports and come in various sizes.

Gauge port adapters also allow gauge ports to be added to hose lines. As port size increases, the component becomes, in effect, a reducing tee. Alternatives like thread-o-lets are cheaper to buy later, but they are expensive to install due to cleaning requirements and the cost of welding.

Flange adapters

许多组件平方安装模式their flanges. This includes hydraulic mounting pads to German (ISO 6164), Japanese (JIS), or some special company standards. Flanges for these patterns are easy to get, but if you want to convert to a split-flange (SAE) hose connection, it can be difficult. Square pattern to SAE pattern flange adapters can easily accomplish this task. The flange adapter has a set of counter-bored through-holes in the square pattern and a set of tapped holes in an SAE pattern. You can get a hose with SAE flanged heads almost anywhere in the world. Hoses help reduce shock in the system but do need to be changed, while a pipe may never need to be changed. Flange adapters are also used to convert between SAE J518/1 (code 61) and SAE J518/2 (code 62) patterns. This can be necessary when a pump or other component is replaced or when the line sizes of a code 62 system are reduced enough to take advantage of the increase in pressure rating of the less expensive code 61 components.

Several years ago, flange adapters helped reduce cost and weight in a large multiple-story-high hydraulic press project. The press design specified a large steel manifold approximately 1.4 meters (4 feet) by 2.8 meters (8 feet) and 100-150 mm (4-6 inches) deep. The spec was 100-150 mm because if the ports were oriented properly for the lines to make a 90° bend, the entire manifold needed to be 150 mm. By using flange adapters to rotate the rectangular flange pattern, the manifold only needed to be 100 mm deep, resulting in a huge reduction in cost and weight. The same issue arises in small systems where spacing requires a compact solution.

法兰适配器也可以用来减少size of a connection. They work like reducing flanges but for hose connections. The advantage is that the hose connection can be replaced easily because it only needs standard components. Another nice feature is that the surface of the flange adapter that is exposed when changing hoses is the ground surface, which sometimes can be reground to correct damage; however, check with the manufacturer before regrinding to determine if it can be done safely due to thinning of the component and also reducing of the thread depth. Flange adapters are sometimes used with solid flanges; if the flange needs to be replaced, a standard flange can be used.

作为三件式连接,法兰适配器可以增加垫尺寸。这三块由法兰组成,一个3/8至1/2英寸的厚板和安装套件。法兰用安装套件将螺栓固定在现有的较小垫上,并将板夹在较大的组件和法兰之间。有时需要更长的螺钉来安全地安装较大的组件。

Some contractors and facilities require all-imperial or all-metric screws. There are flange adapters that can accommodate both imperial and metric mounting patterns. Flange adapters solve a lot of problems and have a number of different configurations.

Flanged elbows and tees

法兰适配器旋转垫子图案时,法兰肘部旋转垫子的轴。例如,即使压力机非常大,液压压力机周围的空间也可能非常紧。法兰肘部以最紧的弯道旋转。通过拥有比90°法兰头更多的材料,它们对冲击的弹性更具弹性。法兰肘部还允许将连接与其他方向断开连接,即使另一个组件或线在法兰肘部旁边,也可以访问线路。一个例子是通过中央液压系统喂养的多个液压工作站的安装。该设施在沟槽中运行了3英寸的液压线。使用法兰的肘部和T恤,它们能够使用9英寸宽x 12英寸深的沟渠。与工作站的连接来自线的顶部,使用盲法来阻止连接。当可用的空间使安装很难服务时,请考虑法兰的肘部和T恤。 They are available in both O-ring and flat-faced connections. The most often used version has an O-ring on one pad and a perpendicular flat-faced pad.

连接器块

连接器块允许连接两个法兰头软管。这是一个内联拟合,具有两个轻拍,扁平的连接。我们已经看到在两种情况下通常使用这些。首先是通过舱壁建立连接;将块焊接到舱壁上,并将软管连接在两侧。连接器块也可以用于连接软管。建筑设备制造商使用连接器块来帮助标准化软管长度。它允许将一组标准的软管保存为替换套件,从而增加设备的正常运行时间。如果固定在适当的位置,则可以使用连接器块来加压或耗尽液压系统。

Gender changers

在大型项目上,经常使用多个承包商。这可能导致沟通不畅和错误。请记住,连接是由O形圈和平面法兰建立的。连接点是打破承包商之间项目的方便场所。一个常见的问题是连接的两侧具有相同的性别,无论是O形圈还是平面面。性别改变者既有扁平面或两种O形圈面。它们从7毫米(1/4英寸)到12毫米(1/2英寸)稀薄。通过知道性别改变者存在,您可以快速缓解多个承包商之间的紧张局势。

MAIN Manufacturing has started making a set of products called saddle-weld flanges that can solve some of the same situations that a flanged tee does. One end of the connections has a flat-face flange and the other end has a special contour that looks like a saddle, hence the name. It is sized based on the diameter of the pipe to which it is attached. Installation involves drilling a hole into the pipe and preparing the area for welding. The connector contour partially wraps around the pipe and is welded into place around the contour. A flange pad is now 90° to the axis of the pipe.

This article has covered a number of less-common but readily available connectors. Knowing these connectors are available can decrease the cost of installations and repairs and increase the ease and sophistication of the installation.

For more information, visithttps://mainanmanufacturing.com/

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