ABDW Valve
An improvement of the ABD Valve. Modifies the Emergency Portion and provides for accelerated buildup of brake cylinder pressure during quick service applications.
ABDW Valve
Improved version of the ABD Valve. Modifies the Emergency Portion of the brake system and provides for accelerated buildup of brake cylinder pressure during quick service applications.
ABS ...
 See also: Switch, Freight car, Track, Triple Valve, Train Line
  
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