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Erlenmeyer Culture Flasks, Baffled-Bottom (Duran™ Glass)

 

pic     DURAN® baffled flask with GL 45 thread

  • The four bottom baffles interrupts the circular flow to create a turbulent flow. The gas exchange surface of the liquid is increased, so that the oxygen intake can be increased
  • Manufactured in a fully automated process to provide totally consistent flask shapes leading to highly reproducible experimental results
  • Available with or without membrane screw cap
  • Available in range of three sizes (250, 500 and 1,000 ml) for process scale up

 

 

 

 

 

Comparison of the produced microbial mass (experiment with E.coli bacteria):

 

 

Movement of fluid on an orbital shaker:

When cultivating microorganisms in Erlenmeyer flasks on an orbital shaker, the oxygen intake is frequently the limiting factor for cell growth. The DURAN® Erlenmeyer flask with four bottom baffles interrupts the circular flow to create a turbulent flow. The gas exchange surface of the liquid is increased, so that the oxygen intake can be increased.

 

 

Due to completely automated machine manufacturing, the Erlenmeyer flasks with baffles from the DURAN Group are geometrically reproducible. The wall thickness of the flasks has been increased to achieve excellent mechanical strength and to guarantee a long product service life. The special manufacturing process means it is possible to manufacture the product complete with threading in a two-stage process. Hence the flasks can be sealed with the proven membrane screw cap from the DURAN Group. This enables reproducible gas exchange in contrast with other closure options, such as sealing with cotton wadding or similar. The cap can be reused many times.

 

 

Ordering information:

Cat. No.Capacity
ml
d
mm
h
mm
Case
21283365* (aka 1280549)     250ml   81    145   4/case
2128336 (no screwcap)   250ml   81 145   4/case
21283445*   500ml 105 180   4/case
2128344 (no screwcap)   500ml 105 180   4/case
21283545* 1000ml 136 221   1/case
2128354 (no screwcap) 1000ml 136 221   1/case

 

 

* Complete with membrane srew cap and pouring ring

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$248.00
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21283365
Glassware for Microbiology
Glass 250ml Baffled-Bottom Flasks
4 baffles, with GL45 thread
Membrane ScrewCap with pouring ring
Borosilicate glass, 4 flasks/case
aka #1280549
$280.00
Add to cart
21283445
Glassware for Microbiology
Glass 250ml Baffled-Bottom Flasks
4 baffles, with GL45 thread
Membrane ScrewCap with pouring ring
Borosilicate glass, 4 flasks/case
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