- Combination pressure holding & quick release valve
- Operates as a pressure holding valve until inlet pressure drop to 2 to 2 ½ psi below outlet pressure before valve begins to exhaust
- The ratio feature operates during the exhaust cycle. While building air from 0 psi, Inlet pressure is 1:1 with Outlet pressure. During exhaust cycle, Inlet pressure must decrease by 2.5 times before Outlet pressure exhausts.
- Prevents unwanted loss of outlet pressure when inlet pressure varies during normal operation
- Heavy duty metal construction with rubber to metal bonded moveable seat for durability
- 2 hole backet for frame or crossmember mounting
- Dimensions: Height 2.25” – Width 2.25” – Depth 2.00” – Approximate Weight: .60 lbs. (See Weight Chart)
- Air Piping Diagrams – See Technical / Air Piping Diagrams, multiple diagrams are applicable
EXAMPLE – 780524 Ratio Quick Release With Exhaust Valve
- EXHAUSTS PINTLE HOOK CHAMBER ACCELERATING PARKING/ EMERGENCY BRAKE APPLICATION.
- PREVENTS PRESSURE CYCLING DURING PARKING/ EMERGENCY BRAKE APPLICATION.
- RATIO FEATURE RETAINS HIGH PRESSURE ON THE CHAMBER UNTIL THE SUPPLY LINE EXHAUSTS.
- WILL VENT SUPPLY PRESSURE PREVENTING FALSE CHARGING WHEN INSTALLED DOWNSTREAM OF SHUT OFF VALVE.
- USED IN CONJUNCTION WITH 110257.
