Centrifuges are used to separate particulates suspended in a liquid via the application of a centrifugal force including cells, macromolecules, nanoparticles and precipitates. Centrifuges come in three sizes: microcentrifuges, benchtop and floor-standing centrifuges, depending on the volume and number of samples that require separation. When choosing a centrifuge, consider its maximum separation power indicated by its relative centrifugal force (RCF) value. Low force centrifuges reach a maximum RCF of 8,000 g, high-force centrifuges can reach maximum RCF values of 80,000 g. For extremely high forces, consider ultracentrifuges (up to 800,000 g). Refrigerated and vacuum centrifuges also known as concentrators are available for more specialized applications. A range of volumes are available for centrifuge tubes and microfuge tubes, depending on sample sizes. Find the best centrifuges in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.
(This is the suggested replacement for 6340-4L)These 4L PYREX® pear-shaped separatory funnels have glass No. 8 Standard Taper stopcocks and strong, hollow No. 38 Standard Taper glass stoppers. For replacement glass Standard Taper stoppers, see No. 7650; for stopcock plugs, see No. 7680; for retaining clips, see No. 7280."
These 500 mL PYREX® pear-shaped separatory funnels have glass No. 4 Standard Taper stopcocks and strong, hollow No. 27 Standard Taper glass stoppers. For replacement glass Standard Taper stoppers, see No. 7650; for stopcock plugs, see No. 7680; for retaining clips, see No. 7280.
These 60 mL PYREX® pear-shaped separatory funnels have glass No. 2 Standard Taper stopcocks and strong, hollow No. 16 Standard Taper glass stoppers. For replacement glass Standard Taper stoppers, see No. 7650; for stopcock plugs, see No. 7680; for retaining clips, see No. 7280.
These 6L PYREX® pear-shaped separatory funnels have glass No. 10 Standard Taper stopcocks and strong, hollow No. 38 Standard Taper glass stoppers. For replacement glass Standard Taper stoppers, see No. 7650; for stopcock plugs, see No. 7680; for retaining clips, see No. 7280.
These 125 mL PYREX® pear-shaped glass separatory funnels have Polytetrafluorethylene (PTFE) No. 2 Product Standard stopcocks and strong, hollow No. 22 Standard Taper glass stoppers. The PTFE plug fits into the micro-finish barrel. The plug also reduces freezing problems and grease contamination. For replacement glass Standard Taper stoppers, see No. 7650; for PTFE stopcock assemblies, see No. 7681.
These 250 mL PYREX® pear-shaped glass separatory funnels have Polytetrafluorethylene (PTFE)No. 4 Product Standard stopcocks and strong, hollow No. 22 Standard Taper glass stoppers. The PTFE plug fits into the micro-finish barrel. The plug also reduces freezing problems and grease contamination. For replacement glass Standard Taper stoppers, see No. 7650; for PTFE stopcock assemblies, see No. 7681.
These 2L PYREX® pear-shaped glass separatory funnels have Polytetrafluorethylene (PTFE) No. 6 Product Standard stopcocks and strong, hollow No. 38 Standard Taper glass stoppers. The PTFE plug fits into the micro-finish barrel. The plug also reduces freezing problems and grease contamination. For replacement glass Standard Taper stoppers, see No. 7650; for PTFE stopcock assemblies, see No. 7681.
These 6L PYREX® pear-shaped glass separatory funnels have Polytetrafluorethylene (PTFE) No. 10 Product Standard stopcocks and strong, hollow No. 38 Standard Taper glass stoppers. The PTFE plug fits into the micro-finish barrel. The plug also reduces freezing problems and grease contamination. For replacement glass Standard Taper stoppers, see No. 7650; for PTFE stopcock assemblies, see No. 7681.
