Can I replace the O-ring between my jacketed lab reactor vessel and lid?

The part number of the O-ring between the vessel and lid, which is held in place by the white PTFE collar, for Reactor-Ready, Reactor-Ready Duo and Lara is:

  • RR121090: FEP Encapsulated Silicone Vessel O-Ring – DN100

For the larger Reactor-Ready Pilot, it is:

  • RR210022: FEP Encapsulated Silicone Vessel O-Ring – 200 mm

Lara o-ring

All O-rings are considered consumables (to be replaced as required), and they are included in the respective maintenance kits:

  • RR121150: Reactor-Ready Maintenance Kit
  • LR199010: Lara Maintenance Kit
  • RR210100: Reactor-Ready Pilot Maintenance Kit

The FEP outer of these O-rings has excellent chemical resistance and the silicone inside gives flexibility. Nonetheless, if you would like to try an alternative O-ring material, we offer the following alternatives for the small DN100 size:

  • RR139103: Viton Vessel O-ring Seal – DN100
  • RR139105: Isolast Vessel O-ring Seal – DN100
  • RR139107: Chemraz Vessel O-ring Seal – DN100