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Compressed air foam system (CAFS): The CAFS extinguisher (example: TRI-MAX Mini-CAF) differs from a standard stored-pressure premix foam extinguisher in that it operates at a higher pressure of 140 psi, aerates the foam with an attached compressed gas cylinder instead of an air-aspirating nozzle, and uses a drier foam solution with a higher ...
(Attack line) A use classification of a fire fighting hose connected to output of a pump or other pressure source (e.g., gravity). Fire hose used to apply water or other fire fighting agent directly to a fire or burning substance. Typically of 2 + 1 ⁄ 2 inches (64 mm) diameter or less in the United States. Historically 1.5 inch hose was the ...
Download as PDF; Printable version; In other projects ... Pages in category "Pressure gauges" The following 23 pages are in this category, out of 23 total.
Example of the widely used Bourdon pressure gauge Checking tire pressure with a spring and piston tire-pressure gauge. Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area.
A whiplash arrestor can be used to restrain such hoses. Enclosing the components to be tested, hazard signage, use of appropriate personal protective equipment and providing barriers to access for non-essential personnel are common precautions. Equipment: Pressure gauges; Water supply; Pumps and hoses for water filling
The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out the fire. Pressure is generated by gas cartridges stored inside the cylinder. Its force will last for 45 seconds and can reach 3–4.5 metres (10–15 ft). [3] [1]
APW extinguishers are commonly converted into makeshift CAFS extinguishers by drilling two 1.6–3.2 mm (1 ⁄ 16 – 1 ⁄ 8 in) holes in the pickup tube. The unit is then filled with 5.7 litres (1.5 US gal) of water and Class A foam, aqueous film forming foam (AFFF), film-forming fluoroprotein (FFFP) or commercial detergent is added to the water in a 1% ratio for class A fires and a 3–6% ...
Construction, resistance to pressure, mechanical tests. EN 3-4: Portable fire extinguishers. Charges, minimum required fire. EN 3-5: Portable fire extinguishers. Specification and supplementary tests. EN 3-6: Portable fire extinguishers. Provisions for the attestation of conformity of portable fire extinguishers in accordance with EN 3-1 to 3-5.