114 Advantages • Two model types available, NPT/BSPT threads or O-ring with locking screw. • NFPA 30. Materials • Body: aluminum. • Poppet: acetal. • Spring: stainless steel. • Screws: zinc plated steel. • Screen: brass. 802 Pressure Vacuum Vents EBW pressure vacuum vents are used on underground and aboveground storage tank vent pipes to discharge vapors upward into the atmosphere. The top casting is dome-shaped to quickly drain off moisture including rain, snow and ice. Body and cover are cast aluminum with a 30 mesh, flame arresting, bronze screen. 2" and 3" models have vent rates of 8000 cubic feet per hour, and produce 8.0 ounces of pressure and 0.5 ounces of vacuum. Model Size Installation Weight In. mm Lbs. Kg 802-303-01* 2.00 51.00 NPT threaded 1.88 0.85 802-303-02* 2.00 51.00 O-ring seal 1.84 0.83 802-303-12* 2.00 51.00 O-ring seal 1.88 0.85 802-303-21* 2.00 51.00 BSPT threaded 1.88 0.85 802-304-05* 3.00 76.00 NPT threaded 2.44 1.11 802-304-06 3.00 76.00 O-ring seal 2.40 1.08 4.66" 5.56" 2.94" 800-303 5.03" 5.56" 4.00" 800-304 Aboveground StorageTank Equipment *UL file # MH 15882.
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