Unlike the rubber bulb dispenser which primarily moved air with a small amount of fluid, modern PET preforms manufacturers in india use a positive displacement pump that acts directly on the fluid. The pump draws liquid up a siphon tube from the bottom of the bottle, and the liquid is forced out a nozzle. Depending on the sprayer, the nozzle may or may not be adjustable, so as to select between squirting a stream, aerosolizing a mist, or dispensing a spray.
The dispensing is powered by the user's efforts in a PET SPRAY BOTTLES, as opposed to the spray can, in which the user simply actuates a valve, and product is dispensed under pressure, using a liquid that gasifies at room temperature and pressure such as propane/isobutane blends or Freon, or pressured gasses such as nitrous oxide or ordinary air.
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