Description
The FIG 244O is a pressure-relief-only emergency vent for aboveground storage tanks, required by code to protect against over-pressurisation in fire conditions. Not a standalone solution, it must be used with a normal vent. Available in sizes 3″” to 8″”, with 8 or 16 oz/sq.in. settings, and NPT/BSP thread options.
Features
- Pressure relief only — must be used in conjunction with a normal vent or pressure-vacuum vent
- Available sizes: 3″”, 4″”, 5″”, 6″”, 8″”
- Pressure settings: 8 oz/sq.in. or 16 oz/sq.in.
- Connection options: NPT female thread, BSP/British pipe female thread
- Screen option available on most models
- O-ring seal on all models
- CARB Phase 1 EVR approved variants available
- UL Listed and ULC Listed
Applications
- Aboveground storage tanks (AST) for petroleum and flammable/combustible liquids
- Tanks built and tested to UL 142, NFPA 30 & 30A, and API 650
- Fuel storage facilities, bulk plants, and service stations
- Applications requiring compliance with IFC, NFPA, PEI, UL, or ULC standards
Certifications & Approvals
- UL Listed: UL-2583
- ULC Listed: CAN/ULC S601, CAN/ULC S602, CAN/ULC S652
- CARB EVR: California Air Resources Board Phase 1 Enhanced Vapor Recovery (VR-402) — select models
- Code Compliance (when properly sized): International Fire Code · National Fire Code of Canada · NFPA 20, 30, 30A, 31, 37, 110 · PEI RP200, PEI RP800 · UL-142, UL-2085, UL-2244
