BC Transit – Air Brake Course

The Governor
(continued)
(1) Air flowing from the compressor moves down the main discharge line to the wet tank.
(2) From the wet tank, it passes through a one-way check valve to the dry tank
(3) Reservoir pressure arrives at the governor, “telling” it the pressure in the dry tank
(4) When sufficient pressure is developed, the governor signals the compressor to unload.
4
3
1
2
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