09-27-2015, 05:10 PM
Pressure Protection Valve. It is a valve that will let air pass slowly but not quickly. So if something catastrophic happens in the supply loops, the valve will not allow the air in the brake system to whoosh out and leave you without the air to stop the coach.
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home )