Aspirator
From the Simple English Wikipedia, the free encyclopedia that anyone can change
An aspirator is a device that makes vacuum, due to the Venturi effect. In the aspirator, fluid flows through it. The tube narrows, making the fluid flow faster, and reducing the pressure. Then, vacuum is taken from it. The aspirator is also known as an ejector or a filter pump.
The most common type of aspirator is the water aspirator. It is used in laboratories for chemistry and biology. The aspirator has a fitted tee, which is attached to a faucet. It has a hose barb on one side. The flow of water passes through the straight part of the tee, which restricts the water flow at the intersection with the hose barb. The vacuum hose should be connected to this barb.
The strength of the produced vacuum is limited by the vapour pressure of the flowing water. However, the strength of the vacuum is not limited if a gas is used as the working force.
| Laboratory | |
|---|---|
| Equipment | Agar plate - Aspirator - Bunsen burner - Calorimeter - Colorimeter - Centrifuge - Fume hood - Microscope - Microtiter plate - Plate reader - Spectrophotometer - Thermometer - Vortex mixer - Static mixer |
| Flasks | Erlenmeyer flask, Florence flask, Volumetric flask, Büchner flask |
| Other Glassware |
Beaker - Boiling tube - Büchner funnel - Burette - Conical measure - Crucible - Cuvette - Gas syringe - Graduated cylinder - Pipette - Petri dish - Separating funnel - Soxhlet extractor - Test tube - Thistle tube - Watch glass |
