Hydraulic hose fittings come in two varieties: permanent or reusable. Permanent, or crimped, fittings are the most popular choice in the fluid power industry due to their ease and speed of connection. The three most common connection ends and connector types for hydraulic fittings are O-ring, coupling angle, and conical screw connectors. However, other types are used in specialized applications.
Hydraulic fittings are parts used to connect hoses, pipes, and tubes in hydraulic systems. These systems often operate at high pressures and are not fixed, so the fittings must be strong, versatile, and reliable to ensure safety and effectiveness. They must meet strict standards that dictate their construction, dimensions, and pressure ratings. With the increasing popularity of portable hydraulic crimpers suitable for mobile technicians and on-site use, reusable hydraulic accessories are gradually losing popularity.
The choice of connection material depends on factors such as operating pressure and temperature, type of hydraulic fluid used, environmental conditions that could lead to corrosion, and size of the hydraulic hoses used. When it comes to identifying the right hydraulic hose for purchase, repair work, or modification of equipment, it can be a complicated process. Hydraulic hose fittings are easy to assemble (and disassemble) in tight spaces as long as the hoses have an outer diameter. When the nut is initially tightened, the ferrule contacts the outer circumference of the hose.
When tightened further, the ferrule begins to penetrate the outer circumference of the hose. The criteria for choosing the right end fittings for hydraulic hoses include size, material, temperature, pressure, application, and assembly. In an all-metal connection, sealing against pressurized fluid is possible thanks to metal-to-metal contact while a hydraulic hose connector with O-ring forms a pressurized seal by compressing the O-ring between two coupling halves. When the nut of a flared connection is tightened, it is inserted into the flared end of the hose creating a strong seal. When it comes to repairing or maintaining hydraulic hoses and their associated fittings, it is important to understand what type of fitting is being used in order to ensure that it is properly installed and maintained.
This article will provide an overview of the different types of fittings used in hydraulic hose repair and maintenance.