Description
The FIG 748ALT is a 2″” aluminum pressure vacuum vent valve for tanks storing aqua-ammonia and agricultural chemical products. Pressure and vacuum poppets seal vapors inside the tank when pressure is equalized and open during filling and dispensing to allow controlled tank breathing. PTFE-coated seats and poppets provide chemical compatibility for ag-chemical service. Settings are approximate.
Features
- Designed for aqua-ammonia and ag-chemical tank applications
- Pressure and vacuum poppets conserve vapors when tank pressure is equalized
- PTFE-coated aluminum seats and poppets for chemical resistance
- 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
- Stainless steel screens
- Available in 8, 16, and 32 oz/sq.in. pressure settings
Applications
- Aboveground storage tanks for aqua-ammonia and agricultural chemical products
- Normal venting during tank filling and product dispensing operations
- Installations requiring vapor conservation in chemical storage applications
