SAE J516:2019 pdf free

SAE J516:2019 pdf free.Hydraulic Hose Fittings
The maximum and minimum across flat dimensions shall be within the commercial tolerance of bar stock from which the fittings are produced. Formed or upset hexagon contours shall fit standard wrench size openings. The minimum across corners dimensions of external hexagons shall be 1 .092 times the nominal width across flats, but shall not result in a side flat width of less than 0.43 times the nominal width across flats. Tolerance on all dimensions not otherwise listed shall be +0.40 mm. Fitting seats shall be concentric with straight thread pitch diameters within 0.25 mm as measured by full indicator reading (FIR).Angular tolerance on the bend of elbow hose fttings shall be +3 degrees.
The tabulated d2 dimensions reflect the minimum bore at any point through the ftting prior to assembly to the hose. For SAE 100R5 and SAE 100R14 hose fttings, the d2 dimension can be 0.2 mm smaller than the values listed in the tables.The after-assembly bore reduction will be a maximum of 10%， The reduction must be in the general shape of a venturi.Where passages in straight fttings are machined from opposite ends, the offset at the meeting point shall not exceed 0.40 mm. On angle fitings, the cross-sectional area at the junction of fluid passages shall not be less than that of the smallest passage. This assembly passage definition does not apply to bent tubes.
Some hose pressure ratings in SAE J517 exceed the pressure ratings for the connection (threads, flanges, etc.) of certain types of hose fttings shown in SAE J516. SAE J518 parts 1 and 2, and SAE J1453 parts 1, 2 and 3, specify pressure ratings for four-bolt split flange and O-ring face seal type hose fttings, respectively. For all other types of hose ftting connections, consult the fitting manufacturer for pressure ratings. The pressure rating of a hose assembly comprising SAE J516 fttings and SAE J517 hoses shall not exceed the lower of the two pressure rating values.SAE J516 pdf free download.