PNP Railways - How do Vacuum Brakes Work? The ejector or vacuum pump draws the air from the train pipe, the brake cylinder and reservoir (via the non-return valve). The brakes will
![Schematic diagram of the diffusion-pump high-vacuum system used for the... | Download Scientific Diagram Schematic diagram of the diffusion-pump high-vacuum system used for the... | Download Scientific Diagram](https://www.researchgate.net/profile/Jmf-Santos/publication/287663369/figure/fig1/AS:394261347487747@1471010638914/Schematic-diagram-of-the-diffusion-pump-high-vacuum-system-used-for-the-laboratory_Q640.jpg)
Schematic diagram of the diffusion-pump high-vacuum system used for the... | Download Scientific Diagram
![A schematic installation of typical SVP and the working principles of a... | Download Scientific Diagram A schematic installation of typical SVP and the working principles of a... | Download Scientific Diagram](https://www.researchgate.net/publication/308117018/figure/fig10/AS:668527350538241@1536400749130/A-schematic-installation-of-typical-SVP-and-the-working-principles-of-a-LRVP-Mechanical.jpg)