Hydraulic Fittings

Hydraulic fittings join components such as hoses, pipes and tubes in the hydraulic system. These connections help contain and direct the flow of liquid in the conductor whilst preventing leaks and maintaining pressure. Different fittings allow designers to change the flow direction, elevation of lines or split flow. They are usually made of stainless steel, brass, aluminium or plastic and the range of materials have their own performance capabilities. Fittings are two types: male or female and they are joined together to form a union. The choice of which to install depends on the size of the conductor and its material. Seals reduce the risk of leakage from vibration, thermal cycling and pressure cycling and should be compatible with the fluid and temperature range. Fitting geometries are identified by letter and can change the angle of the flow even swivelling. Some examples are run and branch tees (T), wyes (Y) elbows and crosses. They are designed to clamp on by means of a sleeve or ferrule although there are quick disconnects and push-to-connect fittings which need no tools. Hydraulic fittings are of interest to anyone who uses hydraulic equipment, tools or machinery, especially those in industry or construction.