Description
Micropump Pump assembly 8940 can be found on various turboprop and light jet aircraft within the commercial and military sectors. The Model 668-28 (also referred to as 668-28-8940) Pressurematic Water System is a complete electrically powered, constant displacement pump unit. It is used to supply a steady water pressure of approximately 20 psig (1.38 bar) and a maximum flow rate of 1.5 gpm (5.6 l/m) for the water outlets in aircraft equipped with gravity tanks. In aircraft with pressurized water tanks, the Model 668-28 provides boost pressure to approximately 20 psig (1.38 bar) above cabin pressure.
