8800 fire-retarding breather valve protects against overpressure of the storage tanks and meanwhile separate the possible flame outside of the tanks. The fire-retarding breather valve is of a one-piece design, which greatly reduces the engineer design calculation and maintenance, and is an ideal option for fire proofing in the tank field, and for tank protection.

Technical parameters

Dimensions: 2" - 12" ( 50mm - 300mm )
Set pressure： 0.5 oz /in 2 ~ 15 PSIG （ 0.2 ~ 103KPaG ）
Set vacuum： 0.5 oz /in 2 ~ 12 PSIG （ 0.2 ~ 83KPaG ）
Materials: 316SS, aluminum, carbon steel, etc.
Action mode: spring, gravity
Connection mode: flange