How do you determine the necessary hydraulic hose fitting when your application involves connecting two bent hoses? When your fittings are at an angle, understanding their orientation is critical. They must be oriented to each other to ensure proper installation with minimal stress on the hose from twisting.
Fitting orientation is determined by the number of degrees measured in a clockwise direction. The orientation angle tolerance should be ±3° for overall length (OAL) up to 24" or ±5° for OAL over 24" according to SAE J517. If the angle of the hose orientation is not correct in the construction of a hose assembly, the performance and life of the assembly will be greatly reduced. For more information about hydraulic fitting orientation, watch the video below.
To identify the angle of a hose end simply there are two different methods. There is a near end reference method and a far end reference method. Each set of directions is described below. Whether you are using the near or far end method, the key is to remain consistent. When ordering hose assemblies, specify which method was used to ensure correct orientation.
To avoid fitting orientation, do not use an angle fitting on both ends of a hose assembly. Use a straight fitting and an angle adapter on the other end. This method makes installation easier and eliminates the need for orientation. Hose Products Division offers a wide selection of fitting options, view our hydraulic hose fittings for more information.
Article contributed by Kyri McDonough, marketing services manager at Hose Products Division, Parker Hannifin.
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