What is Aspirator?
[[Image:Aspirator.jpg|right|thumb|A aspirator made of [[copper]]. The water inlet is at the top and the water outlet is at the bottom. The air inlet is on the side.]] An '''aspirator''' is a [[machine|device]] that makes [[vacuum]], because of the [[Venturi effect]]. In the aspirator, [[fluid]] flows through it. The tube gets more thin, making the fluid flow faster, and making the [[pressure]] smaller. 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 [[laboratory|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 [[wikt:restrict|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 [[Vapor pressure|vapour pressure]] of the flowing water. However, the strength of the vacuum is not limited if a [[gas]] is used as the working [[Force (physics)|force]]. {{LaboratoryEquipment}} [[Category:Laboratory equipment]]