The invention relates to an optimized foam former (1) for foaming a foam-water concentrate, which foam former consists of a curved grate having diamond-shaped openings (13) and sharp edges (12). The structure of the foam former increases the foam formation and ensures uniform distribution of the foam over a large area. Existing water sprinklers having a nozzle (3) and a spray disk (2) can be provided with the foam former (1) and thus converted into foam sprinklers in a simple manner. The foam former (1) is arranged in such a way that the foam former (1) protrudes beyond the spray disk (2) toward the nozzle (3).

The invention relates to an optimized foam former (1) for foaming a foam-water concentrate, which foam former consists of a curved grate having diamond-shaped openings (13) and sharp edges (12). The structure of the foam former increases the foam formation and ensures uniform distribution of the foam over a large area. Existing water sprinklers having a nozzle (3) and a spray disk (2) can be provided with the foam former (1) and thus converted into foam sprinklers in a simple manner. The foam former (1) is arranged in such a way that the foam former (1) protrudes beyond the spray disk (2) toward the nozzle (3).

An autonomous grid storage system (1) with a foam based fire prevention system. The autonomous grid storage system is in the form of a grid storage structure (104) dived into sub grids (10A, 10B, 10C) separated by firebreak or firebreaks (12). A foam dispensing system (20) dispenses a fire-retardant foam into the firebreak or firebreaks in the event of fire.

An autonomous grid storage system (1) with a foam based fire prevention system. The autonomous grid storage system is in the form of a grid storage structure (104) dived into sub grids (10A, 10B, 10C) separated by firebreak or firebreaks (12). A foam dispensing system (20) dispenses a fire-retardant foam into the firebreak or firebreaks in the event of fire.

The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

A multi-function tank tool including a body, an internal passageway, an upper end and a lower end. The lower end is configured to connect a hose so that a fluid travels in the internal passageway. The upper end includes at least one opening communicating with an interior of the tank. A first hose can be connected to a lower end of the body. The tank may have oil, vapor and an oil/vapor interface. The tank tool can perform at least one of the following: grounding an interior of the tank using at least the tank tool and the first hose; agitating one or more fluids traveling through the internal passageway to mix the one or more fluids traveling through the internal passageway; directing a hot oil adjacent the oil/vapor interface using at least the tank tool and the first hose; and, attaching the tool to a floating tank roof.

An aspirating spray nozzle assembly includes a nozzle body and a distributor removably attached to one another. The nozzle body includes a first inlet, a first chamber, an orifice disc and an annular catchment. The first inlet has a first end and a second end. The first chamber facilitates diffusion of the liquid jet. The first chamber has a third end in communication with the second end of the first inlet and a fourth end in communication with the distributor. The orifice disc is received within the first inlet. The orifice disc has a dispersing means adapted to cause the liquid jet to spread. The annular catchment encircles the fourth end of the first chamber. The annular catchment is configured to catch and deflect a portion of liquid splashback by the interfering means such that the portion of deflected liquid splashback is redirected downstream into the distributor.

A method of proportioning a finished foam at or near a hazard comprising proportioning and delivering a first finished foam to the hazard, determining if the first finished foam extinguishes or suppresses the hazard, if not, selecting an amount of a fluorinated additive, and proportioning a foam solution including the selected amount of the fluorinated additive to form a fluorinated finished foam. A foam injection system is also disclosed.

A method of proportioning a finished foam at or near a hazard comprising proportioning and delivering a first finished foam to the hazard, determining if the first finished foam extinguishes or suppresses the hazard, if not, selecting an amount of a fluorinated additive, and proportioning a foam solution including the selected amount of the fluorinated additive to form a fluorinated finished foam. A foam injection system is also disclosed.