Introduction to emergency braking the use of pneumatic valve

emergency braking pneumatic valve is an essential part of the sound operation of the railway equipment, in the end of railway passenger car compartment, there are marked 'danger! Don't move! 'The red hand, this is the' emergency braking pneumatic valve '. The role of emergency braking pneumatic valve is the driving force of the train take emergency braking. Use the emergency brake pneumatic valve can avoid the accidents caused by emergency. Railway train operation department, in the train, in general only the conductor, police and other train cabin crew didn't have the right to use the emergency brake pneumatic valve, passengers randomly pull pneumatic valve of consequence is unimaginable.
can only use the emergency brake when the following situations happened pneumatic valve: with an obstacle in orbit endangers safety, car goods dangerous abnormal external factors such as interference occurs. Cause accident situation in railway staff dereliction of duty, like in the station without pause, the station did not show start signal and the driver when to start, and so on and so forth. When driving in other accidents, like a sudden fire, bad guys, endanger passengers when lives and property, and so on and so forth.
found that endangers safety and personal safety, Express trains in does not affect the local security, do not use the emergency pneumatic valve, pneumatic valve emergency brake should be used. When using the emergency brake pneumatic valve, don't have to be first to break the seal, will immediately pneumatic valve handle to pull the full open position until it is fully open, may not pause and shut down. In spring handle, before the train stop completely, can not let go. Grew up in the downhill path, must look at the pressure gauge, such as gauge pressure has dropped by the constant pressure kpa, may not use any emergency braking pneumatic valve ( Except in case of Angle cock is closed.