Railways Air Brake Leak Monitor

Brake Pipe Compressed Air Leakage

A railway air brake is a railway brake power braking system with compressed air as the operating medium.

The vast majority of the world's trains are equipped with braking systems which use compressed air as the force to push blocks on to wheels or pads on to discs.  These systems are known as "air brakes" or "pneumatic brakes".  The compressed air is transmitted along the train through a "brake pipe” or, in North America, a “train line".  Changing the level of air pressure in the pipe causes a change in the state of the brake on each vehicle.  It can apply the brake, release it or hold it "on" after a partial application.  The system is in widespread use throughout the world.

Using an Air Flow Meter measuring the rate in cubic meters per minute (m3/min) or cubic feet per minute (CFM) of the compressed air flowing into the brake pipe can determine brake pipe leakage.
The air flow meter also provides the following information about the train’s brake system:·After a brake application and release, the air flow meter will indicate high flow. As the brake system recharges, the brake pipe flow rate will decrease until the air flow pointer reaches the reference value, indicating that the brake system is recharged.·Air flow less than the reference value may indicate a closed angle cock.·Air flow greater than the reference value may indicate increased leakage to the brake system.·With a brake application in effect, a decrease in air flow may indicate that any intentional brake release is occurring.

Our easy to install and easy to use Air Brake thermal Flow meters assist the Engineer to continuously monitor the air flow fluctuations..