09-17-2016, 03:25 AM
All the tool truck dealers used to sell them as "choke testers". Pretty handy really for adjusting the bi-metal choke coils on carburetors. One end blew ice cold air and the other end blew hot air so you could get the choke butterfly to move which ever way you needed it to go to test the tension setting of the coil.
The newer models of misting units are individually adjustable for both air flow and coolant low. If you only want to blast air you simply turn off the fluid control. You don't have to use both air and coolant at the same time, but it does give you the option. Another difference is my old Kool-Mist was mixed at the tank and the coolant would condense before it got to the nozzle and was harder to control. Newer models pipe the coolant all the way to the end of the loc-line and it is mixed as it EXITS the nozzle. More control, less fog.
The newer models of misting units are individually adjustable for both air flow and coolant low. If you only want to blast air you simply turn off the fluid control. You don't have to use both air and coolant at the same time, but it does give you the option. Another difference is my old Kool-Mist was mixed at the tank and the coolant would condense before it got to the nozzle and was harder to control. Newer models pipe the coolant all the way to the end of the loc-line and it is mixed as it EXITS the nozzle. More control, less fog.
Willie