Preparation Of Pipes, Tubes, And Fittings Before Installation In A Hydraulic System

General RequirementsWhen installing the various iron and steel pipes, tubes, and fittings of a hydraulic system, it is necessary that they be absolutely clean, free from scale, and all kinds of foreign matter. To attain this end, the following steps should be taken:– Tubing, pipes and fittings should be brushed with boiler tube wire brush or cleaned with commercial pipe cleaning apparatus. The inside...

Pipe Sizes And Pressure Ratings

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ISO/ANSI Basic Symbols For Fluid Power Equipment And Systems

             NoteAdditional symbols are shown in Vickers Circuitool booklet available for a nominal charge. Ask for circuitool template kit 352.Color Code For Fluid Power Schematic DrawingsFunction ColorIntensified Pressure . . BlackSupply . . . . . . . . . . . . . ....

Oil Flow Velocity In Tubing

Figures in the chart are USgpm flow capacities of tubing, and were calculated from the formula: GPM = V x A / .3208, in which V = velocity of flow in feet per second, and A is inside square inch area of tube. ...

Acceptable and Unacceptable Rings

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Pump Test Procedure For Evaluation Of Antiwear Fluids For Mobile Systems

Test Pump 35VQ25A-11*20 (Cartridge Kit P/N 413421) Test Conditions Speed: 2350-2400 rpm Outlet Pressure: 205-210 bar gage, (2975-3025 psig) Inlet Pressure: 0-.15 bar gage, (0-2 psig) with flooded inlet Inlet Temperature: 90-96degC (195-205degF) Operating Mode Steady-state pressure at above rated conditions for 50 hours. Terminate...

Oil Viscosity Recommendations

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