Помогите, пожалуйста, разобраться, что здесь понимается под словом "train" (train manifold):

The system has experienced failures of the start-up header valves. SEIC reviews including Root Cause Analysis has concluded that this is due to opening with a differential pressure across them. Installation of a cross connection between the North start-up header manifold and Train 1 Production manifold is required. A globe valve will allow pressurization of the start-up header from train 1 manifold prior to attempting to open the start up header valve. A similar arrangement will be installed for Train 2 production manifold and the South start-up header manifold.

И еще такой момент:

start-up header valves = арматура пускового коллектора?

ЗС!