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Brake railway - Air versus Vacuum brakes | | Brake railway - Air versus Vacuum brakes: Encyclopedia II - Brake railway - Air versus Vacuum brakes | | The biggest advantage that air brakes have over vacuum brakes is that the maximum pressure is 70psi instead of only 17psi. Air brake equipment can thus also be smaller and lighter. This advange increases at high altitude, e.g. Peru.
The main advantage for vacuum brakes is that the vacuum can be created by a steam ejector with no moving parts, whereas an air brake system requires a noisy pump.
By and large, the vacuum brake has lost the battle for new systems, and many vacuum braked systems change ...
See also:Brake railway, Brake railway - Air versus Vacuum brakes, Brake railway - Air brake enhancements, Brake railway - Accidents with brakes | | | Brake railway, Brake railway - Accidents with brakes, Brake railway - Air brake enhancements, Brake railway - Air versus Vacuum brakes, Air brake (rail), Vacuum brake | | |
| | | Brake railway: Encyclopedia II - Brake railway - Air versus Vacuum brakes
Brake railway - Air versus Vacuum brakes
The biggest advantage that air brakes have over vacuum brakes is that the maximum pressure is 70psi instead of only 17psi. Air brake equipment can thus also be smaller and lighter. This advange increases at high altitude, e.g. Peru.
The main advantage for vacuum brakes is that the vacuum can be created by a steam ejector with no moving parts, whereas an air brake system requires a noisy pump.
By and large, the vacuum brake has lost the battle for new systems, and many vacuum braked systems change to air brakes when the demand for braking power increases.
 Adapted from the Wikipedia article "Air versus Vacuum brakes", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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