https://youtu.be/SDTq-ijOt08 In this fire engine, R600 Model pump is applied and the maximum output is up to 7000 liter per minute at 10 bar. Closing pressure is 16 bar and maximum pump speed is 2540 rpm. The R pump types are twin-stage normal pressure pumps. The water pump is driven via the PTO of the…
https://youtu.be/tnP0HmUwFiE Water tank is a polypropylene plastic tank whit the capacity of 1585 Gallons. The capacity of foam compound tank is 1057 Gallons. Maximum permitted tanks overpressure is 0.3 bar (4.3 psi).
https://youtu.be/HoaCmRH_Iy8 The main components of the Rosenbauer fire truck include: the chassis, engine, gearbox, water and foam tanks, water pump and connections, water and foam inlets and outlets, cabin, CAFS compressed air bottles, roof turret and light mast.
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…