Thursday, 9 June 2011
A sprayer is an equipment used to apply liquid herbicides, insecticides and fertilizers, etc. In agriculture, sprayer range in size from man-portable units, motorized to tractor-mounted. A knapsack sprayer is such device carried strapped on the back or shoulder of an applicator.
Knapsack sprayer works on pressurized air. Air is forced into the air-tight sprayer, then the liquid is released through a spray gun, via a nozzle which facilitate dispersion the liquid.
There are various type of knapsack sprayer, depending on their capacity : 20 liter, 16 liter, 12 liter, 10 liter, 9 liter etc.