2" MPT Polypropylene Vent (Low Profile)
The very low-profile design of this 2" polypropylene vacuum vent works great with many ICB's, stackable tanks, and other small bulk containers where vacuum relief is necessary or desired. These ICB vacuum vents are chemically resistant, made of a polypropylene body, Viton® O-ring, and 316 stainless spring. The vacuum relief valve relieves vacuum starting at 0.5 PSI and is good for flow rates up to 50 GPM. The vent will not leak if a tank tips over, and the low-profile design helps prevent accidental damage during operation or when multiple tanks are stacked atop one another. All vents are independently tested by Colorado Engineering.
Note: This tank relief valve is not a pressure vent—vacuum relief only.