Manual Bubble Flowmeter (Standard Version)

Description

• General description: Bubble flowmeter is a simple and precise way to measure flow rates of gases.[1] It is the most common device for measuring a volumetric flow rate. This unit has a buret of appropriate volume fitted with rubber bulb at the bottom and a side arm. Air is passed into the buret and the bulb filled with soap solution is squeezed. This causes a soap bubble to enter the buret. The time taken for the bubble to travel in considered as known volume, used to calculate the flow rate.[2]
• Application: Bubble flowmeter may be used to manually control the flow at the system outlet during analysis of perfluorobutane (PFB) in the exhaled rat air using respiration-metabolism chamber system and a GC-MS method.[3] Bubble flowmeters can be used to check splitter or detector flow or to calibrate personal pumps for accurate air sampling.