What are the minimum/maximum working volumes of Reactor-Ready Flex vessels?

Our general guidelines are that:

  • The maximum working volume is approximately 20% higher than the nominal volume (the one stated in the vessel description).
    • The Maximum Fill volume is the volume of fluid required to fill the vessel to the top of the vessel jacket, when there is no stirring vortex and contents are at ambient temperature.
  • The minimum working volume is approximately 25% of the maximum volume.
    • The Minimum fill volume is the volume required to cover the stirrer shaft rotor blade when there is no stirring vortex and contents are at ambient temperature. The actual minimum fill volume required will vary from application to application depending on the type of stirrer shaft, the final position of the stirrer shaft, any probes being used, the viscosity of the contents, the speed of stirring required, contents temperature etc.
    • The Minimum fill volume tends to be higher than the average for smaller vessels, and lower than the average for the larger volume vessels.
    • It also tends to be higher than the average for anchor and turbine stirrer shafts, and lower for retreat curve stirrer shafts.

Please note: if you want to work at a range of volumes, we would advise that you purchase a range of vessel kits as appropriate for those volumes.  Each vessel kit contains a Pt100 temperature probe and stirrer shaft/rotor of a suitable size for that vessel.

It’s quick and easy to swap vessels in Reactor-Ready, unlike traditional jacketed lab reactors – so you do not need to stick with one vessel per reaction system.