The Betts FVA9716BXB PAF450 Manhole Assembly incorporates a 10-inch reclosing pressure relief valve (PRV) mounted to a center-mount, 16-inch clamp ring style manhole, including a P/V normal vent. The PRV cover doubles as a quick-open inspection hatch with a secondary safety catch. The manhole and clamp ring are certified and marked in accordance with 49CFR178.345-5 with a 36 psig test pressure. Use part number FVA9742 for the self-latch unit. The weld collar is not included and should be selected separately.
- Size: 16 inches
- PRV Size: 10 inches
- Test Pressure: 36 psig
- Weld Collar: Not Included
- Self-Latch Version: FVA9742
- Model: PAF450











