Brake controller Comeng

Question 1

What are the different valves in the brake controller on a comeng

Answer 1

Release prevention vlalve
Regulating valve
Relay valve
Charging valve
Emergency exhaust valve
Lockout magnet valve
BVICS

Question 2

What is the purpose of the release prevention valve?

Answer 2

Prevents release of the brakes

Question 3

What is the purpose of the regulating valve?

Answer 3

Regulates the brake pipe (B.P ⬆️ to 550 when brake is in R & R)

Question 4

What is the purpose of the Relay valve?

Answer 4

Relays Equalising resevoir to the B.P.

Question 5

What is the purpose of the Lockout Magnet Valve?

Answer 5

Switches from EP/ Rheo to AUTO AIR brake when de-energised or OPEN
(When closed is energised)

Question 6

Control res provides air to what

Answer 6

Trip and line breakers

Question 7

LOMV raises flag when

Answer 7

Loss of overhead
Ep CB tripped
Air pressure in MR is below safe level (500kpa)

Question 8

What is the purpose of the charging valve?
(& Emergency Exhaust valve)?

Answer 8

Dumps brake pipe
Opens when brake is releaaed to charge brake pipe

Question 9

What is the purpose of the BVICS?

Answer 9

Charges the brake pipe? (MR - BP)
Energizes the LOMV
DTRS
DDU