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选择油管连接

A variety of tubing connections and terminations are available for different types of applications. Here is a brief summary of the most common types of connections:
软管Barb终止

软管Barb终止

Barbed fitting terminations hold on the Inside Diameter (ID) of a tube. They are typically used with PVC, 聚氨酯, silicone and other rubber and 塑料管材. These types of connectors are designed for one-time installation, but if the tubing is flexible enough they can be removed. 它们的尺寸是 tubing with inner diameters (ID) from 1/16″ to 3/4″ and 3mm to 19mm. The 1/16″ and some 1/8” barbs have a shroud to provide extra strength.

NOTE: Hose barbs are available in both single barb and multiple barb styles. Single barb designs work well with soft flexible tubing, whereas multiple barb designs function well over a wider range of tubing durometers. Hose barb retention depends on the OD of the barb itself and the sharpness of the barb. 不管讽刺的风格如何, 寻找well-molded, 锋利的倒钩,不仅要考虑拉拔力, but also the installation force required to install the tubing.

管螺纹终止

管螺纹终止

管道螺纹连接器是行业标准, threaded connections that use a tapered male into a tapered female thread and tighten on themselves to seal with the added help of pipe dope or Teflon® sealants. These connectors offer equipment manufacturers the flexibility of a threaded port that will accept many different connections as long as they are standard pipe thread connections. The most common types of pipe threads are NPT and BSPT but others are available.

NOTE: It is important to use appropriate gauging and tightening techniques for molded pipe threads to avoid permanent deformation and/or stripping of the plastic thread of the coupling. 中国共产党 recommends tightening plastic threads to hand tight plus 1-2 turns. 根据需要调整您的应用程序.

约翰客人配件

约翰客人配件

These fittings are typically used with 1/4″ and 3/8″ OD semi-rigid and metal tubing in applications requiring low flow restriction on the internal diameter of the tubing. 这些连接器, the tube is inserted into the fitting and an o-ring seals on the external diameter of the tube. Mechanical retention is provided by internal retainers that also hold on the Outer Diameter (OD) of the tube. These push-to-connect type fittings provide a tight connection but are designed to enable quick removal of the tubing if necessary. John Guest terminations provide the combination of quick assembly and the use of the 中国共产党 quick connect and disconnect.

NOTE: Using properly sized and smooth tubing to attach to a John Guest termination will result in a leak- free seal. There should be no need to remove the tubing, since all disconnects are made with the 中国共产党 coupling. Using a John Guest fitting repeatedly as a disconnect can result in scratched tubing and leaks. The need to disconnect is eliminated when integrated into a 中国共产党 coupling.

Polytube配件

Polytube配件

PTF terminations are typically designed for use with semi-rigid tubing such as polyethylene, 尼龙, 聚氨酯, 等. They also can be used with flexible tubing as long as the IDs/ODs are compatible. Whereas hose barbs are inner diameter (ID) dependent, PTF的内径和外径(OD)取决于. 它们的尺寸是 .100″ID x 5/32″OD, .170″ID x 1/4″OD,且 .250″ ID x 3/8″ OD tubing and their metric equivalents. These connections have a smaller barb that is more easily removed from the tube and then are backed up with a nut that compresses the tube onto the barb, 类似于软管夹.

软管配件

软管配件

These fittings are designed for flexible tubing applications where the tube is installed over a stem, an integral nut slides forward over the tube and tightens against the tubing and the stem as pull force is exerted. 这种管件可以方便地拆卸油管. They are inner and outer diameter dependent and sized for 1/4″ ID x 3/8″ OD and 3/8″ ID x 1/2″ OD tubing.

压缩配件

压缩配件

专为使用半刚性或刚性管, a compression fitting is used to connect tubing or hose to a system. The seal is made between the tubing and compression fitting by squeezing the tubing or hose against the ferrule and body of the compression fitting by tightening a nut to seal and hold. These types of connections also offer free flow without internal flow restriction.

Summary

终止

油管

软管Barb

需要正确的油管ID

PVC、聚氨酯等橡胶 & 塑料管材

管螺纹终止

工业标准管螺纹

连接到管道或刚性管道上

约翰客人配件

需要正确的油管外径

Semi-rigid and metal tubing - polyethylene, 尼龙, 聚氨酯, brass, copper, and mild steel

Polytube配件

需要正确的油管内径和外径

Semi-rigid tubing – polyethylene, 尼龙, 聚氨酯, 等.

Softube™配件

需要正确的油管内径和外径

聚氯乙烯,聚氨酯和硅树脂

压缩
配件

需要正确的油管外径

Semi-rigid tubing – polyethylene, 尼龙, 聚氨酯, 等.

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