RFQ: Vacuum Relief Valve
RFQ vacuum relief / vacuum breaker valves for tanks and vessels that can go under vacuum on empty or cool-down. Quote India.
Why this RFQ pattern
Tank and vessel packages specify vacuum relief to prevent collapse during emptying, steam-out cool-down, or pump-out.
BOQ wording
- Vacuum relief valve tank DN50 set -50 mbar
- Vacuum breaker valve SS316 flanged
- Pressure vacuum relief valve PVRV
Typical supply
| Type | Vacuum relief / PVRV |
| Body | CS / SS / aluminium |
| Ends | Flanged / screwed |
| Set | Vacuum set point |
Checklist
- Tank size / nozzle
- Vacuum set
- Pressure set if PVRV
- MOC
- Qty