General Description

The Rapidrop Foam Proportioning Bladder Tank is a self-contained foam proportioning unit used for injecting the foam concentrate into a fire-water stream over a wide range of low and high pressures.
Units are available from 200 Liters to 15.000 Liters in Vertical or Horizontal Mounting. The general arrangement of vertical mounting shall be as per drawing on page 3 and horizontal mounting shall be as per drawing on page 5. The dimensions of the foam vessel may be subject to change as per changes in design. The unit consists of a foam vessel, foam bladder, foam proportioner, interconnecting piping, valves, and concentrate level gauge.
Note – Foam Bladder is UL Listed for use with AFFF &AR-AFFF Foam Concentrates.
The Foam vessel is designed and fabricated to ASME Sec.VIII Div. I. and the Foam bladder is made of Nylon reinforced nitrile rubber, which is fixed inside the foam vessel. Foam concentrate is stored inside the foam bladder. The Foam proportioner is supplied separately. The general arrangement of foam proportioner shall be as per the drawing on page 7. It is connected to the tank by means of interconnecting piping. The inlet of foam proportioner is connected to the fire-water supply and outlet of foam proportioner to the foam solution delivery piping. Units can also be installed in double vessel configuration to facilitate stand-by arrangement for the immediate switchover.