Fluid Power: Use of Adapters Part II

Adapters can be used to make installation and orientation easier. Be aware, however, that adapters can also be a potential leak point. Adapters can be used in the following situations: A. To change to a different thread configuration, including international threads. B. As a rule of thumb, it is better to use a straight adapter and bent tube coupling than an angled adapter and straight hose end. Using a straight adapter and bent tube coupling promotes laminar flow and reduces pressure drop compared to an angled adapter/straight hose end. When using adapters, the preferred method is to install the adapter first, and then the hose assembly.