GFQ-2 new type of breathing valve for the main safety equipment installation of crude oil, gasoline, kerosene, diesel, aromatics and other fixed type tanks, is protected from evaporation losses and storage tank under overpressure or air from damage.
Operating pressure: a positive pressure: 355Pa (36 mm water column);
Negative pressure: 295Pa (30 mm water column)
B positive pressure: 980Pa (100 mm water column);
Negative pressure: 295Pa (30 mm water column)
C positive pressure: 1765Pa (180 mm water column);
Negative pressure: 295Pa (30 mm water column)
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