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- The ratio feature is considered a benefit in hard stop situations & refers to the relationship between the control air pressure to the valve & the delivered air pressure from the valve to the service brake chambers
- During normal stopping a 1:1 ratio exists between the control & delivered air pressures. In a hard stop the ratio momentarily changes 1:1.5 until valve lap off occurs & the 1:1 ratio is restored. This change takes place in less than 1/100 of a second
- Do not use ratio feature valves on converter dollies, trailer turnable axles or lift axles
- Dimensions: Height 4.75” – Width 4.72” – Depth 5.63” – Approximate Weight: 4.35 lbs. (See Weight Chart)
- PLUG UNIT ASSEMBLIES 110143
- MINOR REPAIR KIT 110005 – MAJOR REPAIR KIT 110118 – AUXILIARY SUPPLY PORT REPAIR KIT 110673
- Air Piping Diagrams – See Technical / Air Piping Diagrams, multiple diagrams are applicable
