Assertion: airbrake's capability | /r/HasProperty | 21-25inhg
Facets:
Source sentences:
text: The driver could remove air from the train pipe using the ejector(s) or admit air using the brake valve but there was no way of setting the brake to a fixed level of vacuum between 'zero' (atmospheric pressure) and the maximum vacuum-generating capabilities of the ejector (21-25inHg, see above).