Emergency Relay Valve
- This is a charging style valve for use with single (service only) brake chambers.
- This valve includes a Ratio Feature. Do not use on converter dollies, lift axles or trailer turnable axles! The preferred application is controlling tandem axles.
Ratio Feature: 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 to 1:1.5 until valve lap-off occurs and the 1:1 ratio is restored. This change takes place in less then 1/100th of a second.
The preferred application for valves with this feature is controlling tandem axles..
Valves with a ratio feature should not be used on converter dollies, lift axles or trailer turnable axles!
| Euclid: |
ESL110205 |
| Sealco: |
110205, 110205X, 110205RX |
| Supply Port: |
3/8" |
| Reservoir Port: |
3/4" |
| Delivery Port: |
3/8" |
| Control Port: |
3/8" |
| Application: |
pre-FMVSS-121 Trailers |
| Crack Pressure: |
4.5 PSI |
| Approximate Weight: |
5.5 lbs. |
Air Brake Components
