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Reverse Delay Valve
- Connect external vacuum source to port on colored (non-white) side of delay valve. Connect one end of a 24" rubber hose to vacuum gauge and the other end to port on white side of valve.
- With elapsed time device in view and a constant 10 in. Hg of vacuum applied, note time required for gauge pointer to move from 0 in. Hg to 8 in. Hg.
- If valve fails to meet time limits, replace valve. If valve meets specifications, install with non-white side toward vacuum source.
Reverse Delay Valve Time Limits
| Valve Color |
Min. Time |
Max. Time |
| White/Purple |
0.3 |
0.7 |
| White/Gray |
0.6 |
1.6 |
| White/Gold |
0.8 |
2.3 |
| White/Brown |
1.0 |
3.0 |
| White/Yellow |
4.5 |
13.2 |
| White/Red |
14.0 |
47.2 |