Foam Liquid Injection Pump
https://youtu.be/17R6lM54Tdg The Edwards Model pump is a standard-duty high-speed gear driven positive-displacement rotary pump with gear-type rotors.
Foam check valve in Fire Engine
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.
Pressure Relief Valve in Fire Engine
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…
Ratio Flow Controllers in Fire Engine
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…
Auxiliary Valve in Fire Engine
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.
Aerial Ladder Rated Capacity
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…
Foam Tank of of Fire Engine (Teleboom)
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.
Aerial Device of Fire Engine (Teleboom)
https://youtu.be/kvHDBd5jMKM The E-ONE 50’ Boom aerial is designed for aerial firefighting and consist of: • The aerial consists of three welded extruded aluminum telescopic boom sections operating from -10 degrees to 85 degrees and is designed to provide continuous egress for firefighters and civilians from an elevated position to the ground. The aerial device has…