Storagetech foam bladder tank is a steel pressure vessel, which is designed as per NFPA FIRE CODE NO: 11 LOW EXPANSION FOAM SYSTEM STANDARDS. Material is chosen as per ASME sec.VIII div.1. This steel pressure vessel stores a foam concentrate contained within an elastomeric bladder. Water pressure helps concentrate to supply pressurized concentrate to the proportional. Storagetech® bladder tanks can be manufactured vertically and horizontally types and in various capacities.