Stainless Steel air and vacuum relief tank vent valve. Primarily used as a safety device to prevent the implosion/explosion of stainless steel tanks. This design also has a 1/4" FNPT port for gas blanketing of tanks.
Pressure Relief: 0.9 psi (22" water column)
Vacuum Relief: 0.083 psi (2" water column)
Max Temp & Pressure Rating: 3 psi at 70f
Comes in the following tri-clamp sizes: 2", 3", 4"
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