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20433-U

Supelco

Manual Bubble Flowmeter (Standard Version)

flow meter volume 100 mL, pkg of 1 ea

Synonym(s):

FLOW METER 100CC

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About This Item

UNSPSC Code:
41112500
NACRES:
SB.54
Pricing and availability is not currently available.

packaging

pkg of 1 ea

flow meter volume

100 mL

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General description

Bubble flowmeter is a simple and precise way to measure flow rates of gases. It determines the volumetric flow rate by measuring the time taken by the gas stream to move a soap bubble through a specific volume. Bubble flowmeters can be used to check splitter or detector flow or to calibrate personal pumps for accurate air sampling.
The most basic configuration of a bubble flowmeter is a calibrated tube, a stopwatch, and a good eye. The bubble is timed as it moves up the calibrated tube between two markings. Flow tubes are graduated as follows:
  • 10 mL tube in 1 mL increments
  • 25 mL tube in 5 mL increments
  • 50 mL tube in 10 mL increments
  • 100 mL tube in 20 mL increments
Includes glass flow tube with two magnetic clamps, a short piece of Tygon tubing and a squeeze bulb. Stand not included.

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.[1]

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Steinar Uran et al.
Journal of pharmaceutical and biomedical analysis, 39(3-4), 746-751 (2005-06-21)
Sonazoid is a new contrast agent for ultrasound imaging comprising an aqueous suspension of lipid-stabilised perfluorobutane (PFB) gas microbubbles. A respiration-metabolism chamber system was developed to collect exhaled air following intravenous administration of Sonazoid to rats. Analysis of PFB in

Questions

1–9 of 9 Questions  

  1. 1. Should i fill the bottom of the 100ml flowmeter with a bubble-forming liquid, such as Swagelok's Snoop? 2. What is size of included tube OD, ID? Can i use OD 6mm,ID 4mm tube?

    1 answer

    1. Snoop would be an ideal bubble forming liquid. The specified tubing inner diameter is 3/16", which is 4.75mm. 4mm ID, 6mm OD tubing could be a little tight, but may work for an elastic material such as Tygon.

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  2. When calibrating a nitrogen MFC (10sccm), can I record the time when the bubble passes the 10ml mark and divide it? If it takes exactly 60 seconds to pass the 10ml mark, is it 10sccm?

    1 answer

    1. The most common method for calibrating a gas flow rate using the Manual Bubble Flowmeter involves using a timer to measure the time required for a bubble to pass through a specific marked volume. If the bubble passes the 10 mL mark in 60 seconds, the flow rate is measured as 10 standard cubic centimeters per minute (sccm).

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  3. Can I used this 20433-U in below condition? Gas : CO2+H2 (3:1) Flow rate : 100-2,000 mL/min Max Pressure : 0.5 bar-g and what's about size of tube?

    1 answer

    1. This item is suitable for use with room air, argon/methane, carbon dioxide, helium, hydrogen, and nitrogen. The tubing should have an ID of 3/16 inches, see product Z765228. The optimal pressure is listed at 20 psi or 1.4 bar. However, this unit has an approximate flow rate of 20mL to 1000mL per minute.

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  4. Can this device be used to measure a flow rate up to 300ml/min accurately? Or it can only measure up to 100ml/min flow rate accurately

    1 answer

    1. Manual Bubble Flowmeter (Standard Version) - 20433-U has an Approximate Flow Rate range of 20ml to 1000ml mL/min.

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  5. what material is the 100 ML 20433-U Soap film flowmeter is made of ? Glass or plastic resin?

    1 answer

    1. The tube is made of glass. The bubble flow meter will measure up to 100 ml. Generally, it is connected to the detector of the GC with a piece of tubing.

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  6. How can I purchase a column that is packed with this material?

    1 answer

    1. Most packed column are custom made and require that you obtain a quotation. Please contact our Customer & Sales Services group at phone number (800)-247-6628, fax number (800)-447-3044 or email [email protected] for additional information.

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  7. What do I use to fill the squeeze bulb for Bubble Meter, Product No. 20433-U ?

    1 answer

    1. You can use Snoop Product No. 20434 as the bubble solution and only fill the squeeze bulb about half full.

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  8. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  9. Is this product a packed column?

    1 answer

    1. This is packing material only; it is not a column. Some endusers will purchase this bottle of packing and prepare their own packed columns.

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