Brake valve system for dedicated freight cars

A brake valve system for a pair of dedicated railroad freight cars mechanically connected together in a substantially semi-permanent manner and each of such pair of freight cars having a brake pipe pneumatically connected together, said brake valve system comprising:

• a brake control valve disposed on a first one of the pair of freight cars and pneumatically connected to the brake pipe and to a reservoir disposed on one of the first one and a second one of the pair of freight cars for applying and releasing brakes disposed on both of the freight cars, and
• a vent valve disposed on the second one of the pair of freight cars and pneumatically connected to the brake pipe disposed on the second one of the freight cars for emergency venting of air from the brake pipes of the pair of freight cars for emergency application of the brakes of the pair of freight cars.