06-01-2022, 12:51 PM
Not to split hairs on words but the one in the first pic will allow air to flow in OR out.
The second picture should be connected to the air pressure doubler. It is air out only. The function of that system and of the air pressure doubler is to increase the air pressure above the 90 to 120 psi normally present in the coach air system. For those with 315 tires on the front, it is hard to inflate to 130 psi with only 120 psi in the air line. So Newell kindly added the air doubler system. It should have a shutoff valve because the air doubler is a known leaker.
The second picture should be connected to the air pressure doubler. It is air out only. The function of that system and of the air pressure doubler is to increase the air pressure above the 90 to 120 psi normally present in the coach air system. For those with 315 tires on the front, it is hard to inflate to 130 psi with only 120 psi in the air line. So Newell kindly added the air doubler system. It should have a shutoff valve because the air doubler is a known leaker.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)