https://youtu.be/SfX0EWvOJaQ A polypropylene booster tank with the capacity of 1000 Gallons, is installed on the Fire Apparatus. The tank is mounted on hard rubber cushions to isolate the tank from road shock and vibration. The water tank can be filled by an external source through the water fill tower located on the top of the…
https://youtu.be/bXi2jQjbLqA In this fire engine, Hale QMax 200-23S Model pump is applied. Hale pumps are centrifugal pumps and cover a range of capacities from 750 Gallons Per Minute (3,000 Liters Per Minute) up to 2,250 GPM (8,000 LPM).
https://youtu.be/83JuPJC-Is4 The foam pump discharges foam concentrate into the manifold of foam header.
https://youtu.be/17R6lM54Tdg The Edwards Model pump is a standard-duty high-speed gear driven positive-displacement rotary pump with gear-type rotors.
https://youtu.be/83JuPJC-Is4 If metering valves are not working properly or foam pump stops, the water pressure overcomes the foam pressure and water enters into the manifold. Consequently, a check valve is installed between foam manifold and each metering valve to prevent backflow of water into the foam system.
https://youtu.be/wLQg0KuT2Ec A pressure relief valve is supplied on the foam system and When system is set to the manual switch position, at pressure higher than 250 PSI the relief valve will open and foam flow is returned to the suction side of the pump to protect foam system components from over-pressure conditions. How does the…
https://youtu.be/N2Nlhllwx08 Foam concentrate is pumped from the tank or remote source and discharged through manifold and then, metering valves to the individual ratio flow controllers. Each water discharge, that is dedicated for foam operation is equipped with a ratio flow controller that proportions foam concentrate into the water line. Ratio flow controllers are modified venturi…
https://youtu.be/k5tjcsMTe00 There are two air actuated quarter turn full flow bronze ball valves (FOAM TANK-TO-PUMP and FOAM FILL) provided to facilitate operation of the auxiliary foam inlet and outlet.
https://youtu.be/bcGSQw8YSd0 Rated load capacity label is installed next to the master control panel. At the condition of water tower operation 1000-1500 GPM water stream, for the elevation angel from -10 degrees to 45 degrees no one is allowed to stand at the tip but for the elevation angel from 46 to 85 degrees, one people…
https://youtu.be/JqQ5f0GhQ8g A polypropylene foam tank with the capacity of 750 Gallons, is installed on the Fire Apparatus. The foam tank maybe filled from fill tower on top of the vehicle or by using FOAM FILL port on the left side of the vehicle.