Popular Hydraulic Fitting Types
We all know about using the STAMP method (Size, Temperature, Application, Media, Pressure) when choosing the right hydraulic hose fitting. The goal is always to have a leak-free connection that can handle the specific application. But what are the most popular fittings, and why are they so common? The most common hydraulic fitting styles are O-ring, Mated Angle, and Tapered Thread. Each of these styles comes in different variations for different applications. O-ring Fittings There are three types of O-ring fitting designs: O-ring Boss, O-ring Face Seal, and O-ring Flange. Each design utilizes an O-ring to create a secure seal. - O-ring Boss (ORB) Fittings: The O-ring in ORB fittings is situated between the threads and wrench flats, encircling the outer diameter of the male threaded end of the fitting. It seats against the female port to provide a very reliable leak-tight seal. ORB fittings can be either adjustable or non-adjustable. - Adjustable O-ring Fittings: Typically