Description
The FIG 748A is a 2″” aluminum pressure vacuum vent for aboveground and underground storage tanks. Poppets seal vapors when pressure is equalized, opening during filling and dispensing to allow controlled breathing. Must be used with an emergency vent. Sized according to NFPA 30 (2012) 21.4.3. Six pressure settings available.
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
- Optional pressure discharge hood facilitates piping of pressure relief to a desired discharge point
- Available in six pressure settings: 2, 4, 6, 8, 12, and 16 oz/sq.in.
Applications
- Aboveground and underground storage tanks 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
