SUMMARY OF THE DIFFERENCES BETWEEN VALVE AND CHILL VENT
| Vacuum Valve | Advantage | Chill Vent | Advantage |
| High evacuation capacity | YES | Reduced evacuation capacity | |
| Feedback by vacuum measurement | YES | Wrong feedback | |
| Security excellent if a high security valve is used | YES |
Security excellent if process well under control |
|
| “Low” maintenance | “No” maintenance | YES | |
| Low projected surface | YES | High projected surface | |
| Aspiration check and readiness for the next shot | YES | No readiness check | |
| Not sensitive to casting parameter increase | YES | Sensitive to high speed increase or other casting parameter increase |
|
| Affordable cost | Low cost | YES | |
| Satisfies all advanced requirements | YES | Does not satisfy all advanced requirements | |
| Good process repeatability | YES | Limited process repeatability | |
| High technology | Old technology |