Description
The FIG 748A is a 3″” aluminum pressure vacuum vent for aboveground storage tanks. Poppets seal vapors when pressure is equalized and open for tank breathing during filling and dispensing. Must be used with an emergency vent, set below its pressure setting. Six pressure settings available, with optional desiccant dryer connections.
Features
- Vents outward and upward in compliance with NFPA 30
- Tri-polar mounting screws allow exhaust hood installation in any of three positions
- Optional dryer connection accommodates desiccant dryer installation on the vacuum connection
- Aluminum body construction
- Available in six pressure settings: 2, 4, 6, 8, 12, and 16 oz/sq.in.
Applications
- Aboveground storage tanks (AST) for petroleum and flammable/combustible liquids
- Normal venting during tank filling and product dispensing operations
- Installations requiring NFPA 30-compliant pressure and vacuum relief
- Tanks requiring desiccant dryer integration on the vacuum port
