Foam nozzle

Figure 7-12. Elevated Monitor with Aerating Foam Nozzle...

Figure 12.5 Illustration of a a fire hose with a venturi-principle foam nozzle. Adapted from Figueredo and Sabadini [801],...

Materials made of siHcon nitride, siHcon oxynitride, or sialon-bonded siHcon carbide have high thermal shock and corrosion resistance and may be used for pump parts, acid spray nozzles, and in aluminum reduction ceUs (156—159). A very porous siHcon carbide foam has been considered for surface combustion burner plates and filter media. It can also be used as a substrate carrying materials such as boron nitride as planar diffusion source for semiconductor doping appHcations. 

Goldberg and Rubin [Ind. Eng. Chem. Proce.s.s Des. Dev., 6 195 (1967)] showed in tests with a disk spinning vertically to the foam layer that most mechanical procedures, whether centrifugation, mixing, or blowing through nozzles, consist basically of the application of shear stress. Subjecting foam to an air-jet impact can also provide a source... 

Polymer fibres are produced by forcing molten polymer or polymer in solution through fine nozzles (spinnerettes). The fibres so formed are twisted into a yarn and woven into fabric. Finally, polymers may be expanded into foams by mixing in chemicals that release COj bubbles into the molten polymer or the curing resin, or by expanding a dissolved gas into bubbles by reducing the pressure. 

Asbestos suits, axes, ladders, hand extinguishers, hoses, wrenches, and nozzles on hand Fire-fighting proceduies planned Foam chemicals on hand Fire brigade organized... 

Figure 4. Schematic of foam production Tanker-stored water using an eduction system (I) or a premix stored in a tanker (II) may be used for foam generation using a water-driven fan (A) or a screened nozzle (B).

Separation-nozzle method, 25 417 Separation of Isotopes by Laser Excitation (SILEX) technology, 25 416-417 Separation processes enhanced, 27 670-673 foams in, 72 19, 21-22 for supercritical fluids, 24 13-14 sustainable development and, 24 175-176... 

Fixed systems are complete installations piped from a central foam station to tanks or equipment, discharging through fixed delivery outlets. These outlets take the form of foam chambers, monitor nozzles, foam-water spray nozzles, etc. Any required pumps are permanently installed. 

Fixed monitor nozzles can be considered as the primary means of protection for fixed-roof tanks up to 60 ft (18 m) in diameter. Foam hand lines should not be considered as the primary means of protection for fixed-roof tanks over 30 ft (9 m) in diameter or those over 20 ft (6 m) in height. 

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