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For anti-icing fluids and de-icing fluids. A single nozzle can be used
in two steps to deice as well as anti-ice the aircraft. The operator simply
selects the desired fluid and delivery pressure, and the nozzle responds
automatically. First, the nozzle is pumped at high flow and high pressure
for deicing with 80 GPM at 120 PSI. At this higher flow the nozzle operates
in the constant pressure automatic mode at elevated temperatures up to 210º
F (99º C). When the deicing is complete the same nozzle is used for
anti-icing by reducing the pressure and flow to 20 GPM at 50 PSI. In this
reduced flow mode the nozzle acts as a fixed pressure, fixed gallonage
anti-icing nozzle with Type 2 or Type 4 fluids. |