The protectoseal company offers a complete line of safety drum vents and vacuum pressure relief for barrels, drums, and other containers. Have automatic pressure relief, opening between 5 and 8 PSI and manual vacuum relief.
Flame arrester prevents propagation of fire through vent passage.
Perforated metal flash arrester prevents flashbacks through vent passage. Safety Drum Vent Adapter Provides elbow-type mount for Nos. 522 and F522 Drum Vents. Especially recommended to keep flame arrester plates above liquid level when storing viscous flammable. Automatic pressure relief at approximately 5 PSI manual vacuum relief.