Hello, I have a 89 KW T600 and coming off the air tank it has these dodads? They screw into the tank and then a airline goes into them on nearly every fitting. Im guessing it is some sort of regulator, check valve or something. I am looking for the correct name so I can look it up. As one has began to leak Thanks!
Another Picture, Different truck
Found it, Pressure Protection Valve...Should have searched a little harder before posting!
You got it. Keeps whatever accessory is plumbed after it from draining all the air if it malfunctions.
For future reference check this site: http://www.bendixvrc.com/eCatalog/B...9B5776B72811D0F9D5767E24E80/BW1114_US_009.pdf