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Base Failure Rate Extrapolations for Fluid Drivers
The table below indicates how base failure rates are extrapolated for different types of fluid drivers.
Type
Base Rate
Axial Flow, Cent
0.1 – 0.3
Mixed/Radial Flow, Cent
0.1 – 0.14
Peripheral, Cent
0.1 – 0.3
Piston/Plunger, Disp, Recip
1.0 – 1.35
Diaphragm, Disp, Recip
0.4 – 0.75
Vane, Single Rotor, Disp
0.2 – 0.6
Piston, Single Rotor, Disp
0.9 – 1.2
Gear, Multiple Rotor, Disp
0.6 – 0.9
Lobe, Multiple Rotor, Disp
0.4 – 0.5
Screw, Multiple Rotor, Disp
0.2 –0.95
Entering Fluid Drivers