DURAN® Baffled Flask, with GL 45 thread

RM262.00RM930.00

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DURAN® Baffled Flask, with GL 45 thread

  • Manufactured from borosilicate glass 3.3
  • Four baffled-bottom flasks cause a turbulent flow, increase the gas exchange surface and produce a higher oxygen transfer
  • At higher shaking speeds, the baffles increase aeration for better growth, especially with bacteria
  • The moulded bottom-baffles provide increased movement at lower speeds for a more gentle medium aeration of sensitive cultures
  • The flasks can therefore be sealed with the tried-and-tested membrane screw cap from the DWK Life Sciences which enables a reproducible gas exchange compared to other sealing mechanisms e.g. sealing with cotton wool
  • The special production process enables the manufacture of the product complete with thread in a two-stage process
  • Available in range of three sizes for process scale up, with and without membrane screw cap and pouring ring
  • The increased wall thickness of the flasks ensures excellent mechanical stability and a long service life.
  • Easy-to-read scale with graduation marks to estimate the content
  • Fired-on, highly durable white print

 

Product Overview

Oxygen intake is often the limiting factor for cell growth in the cultivation of microorganisms in Erlenmeyer flasks on a vibrating board or orbital shaker. The movement causes a liquid sickle to form when using DURAN® Erlenmeyer flasks on a vibrator. The size of the sickle depends on the speed of the board and the vibration diameter. The greater the surface area of the contents, the greater the gas exchange area and therefore the potential oxygen intake. The speed and the associated oxygen intake can, however, only be increased to a limited extent. The new DURAN® baffled flask with four baffles on the bottom disrupts the laminar flow and produces a turbulent flow. The surface area of the liquid and the gas exchange area are increased, thereby increasing the oxygen intake. Laboratory trials have demonstrated that the oxygen intake is doubled by the baffles compared to a standard DURAN® Erlenmeyer flask. The Erlenmeyer flasks with baffles from the DWK Life Sciences can be geometrically reproduced due to completely automated and mechanical production. The wall thickness of the flasks was increased to achieve an excellent mechanical stability and to guarantee a long service life of the products. The special production process enables the manufacture of the product complete with thread in a two-stage process. The flasks can therefore be sealed with the tried-and-tested membrane screw cap from the DWK Life Sciences. This enables a reproducible gas exchange compared to other sealing mechanisms e.g. sealing with cotton wool.

with membrane cap and pouring ring

Catalog No Capacity (mL) Diameter d (mm) Height h (mm) Thread
2128336 250 85 145 GL 45
2128344 500 105 180 GL 45
2128354 1000 135 221 GL 45

 

without membrane cap and pouring ring

Catalog No Capacity (mL) Diameter d (mm) Height h (mm) Thread
2128336 250 85 145 GL 45
2128344 500 105 180 GL 45
2128354 1000 135 221 GL 45

Specification

Diameter d (mm) : 66
Diameter (mm) : 66
Thread : GL 45
Color : blue-yellow
Colour : blue-yellow
Material : PP, PTFE, Silicone
Height (mm) : 38
Autoclavable : Yes

Available Options

ThumbnailSKUDescriptionStockPriceQuantity 
212833606250ml Baffled Flask, GL 45, with 4 Bottom Baffles, Without Cap (Box of 4pcs)RM690.00
21283365250ml Baffled Flask, GL 45, with 4 Bottom Baffles, c/w Membrane Screw Cap (Box of 4pcs)RM818.60
212834405500ml Baffled Flask, GL 45, with 4 Bottom Baffles, Without Cap (Box of 4)RM775.00
21283445500ml Baffled Flask, GL 45, with 4 Bottom Baffles, c/w Membrane Screw Cap (Box of 4)RM930.00
212835401000ml Baffled Flask, GL 45, with 4 Bottom Baffles, without Cap (Box of 1)RM262.00
212835451000ml Baffled Flask, GL 45, with 4 Bottom Baffles, c/w Membrane Screw CapRM302.00