The chemically resistant PTFE diaphragm vacuum pump impresses with its very silent and economical operation. With a flow rate of 1.8 m3/h and an ultimate vacuum of 5 mbar, it is optimally suited to be combined with the Rotavapor® R-300.
Convenient temperature setting and control when integrated in a Rotavapor® R-300 system.
A set vacuum is achieved very precisely by means of speed-control operation. Due to the absence of sudden pressure changes bumping is minimized.
Condensed solvents or particles are easily visible thanks to the transparent front panel.
Thanks to speed-control, the pump operates smoothly to keep the set vacuum. This results in very low noise emission (32 dB).
The optional post-pump condenser captures vapor which is otherwise released into the lab atmosphere.
In combination with the Interface I-300 / I-300 Pro an optional sensor alerts the operator to empty the receiving flask when required.
By choosing a speed-controller pump. The Vacuum Pump V-300 / V-710* in conjunction with the Interface I-300 / I-300 Pro are operating only when required. This significantly reduces the noice emission and extends the lifetime of the pump.
*V-710 reqires the LegacyBox for speed-controlled operation.
If the solvent is expanded first to ambient pressure, the vapor pressure is increased and thus a condensation much more efficient. This is the reason why the secondary condenser is at the pressure side of the pump. Due to the chemical resistance of the diaphragm pump, even aggressive gases and vapors do not harm the pump.
The gas ballast is an easy method to adjust leakage air to the pump heads. This addition of inert gas helps to dry the diaphragms in case of condensate and thus increase the pump rate again. Typically, the gas ballast is closed to obtain highest flow rate.
The power save mode mode can be reset by simply switching the pump off and on again.
No, the final vacuum is not affected by the power save mode. It only reduces the speed of the pump which reduces the capacity after 1 hour to 1.6 m3/h and after 2 hour to 1.0 m3/h.
If the distillation parameters are not chosen according to the "delta 20 rule" (10-30-50), the condensation is not complete and vapor is entering into the pump. Due to the high vacuum in the second stage, the vapor may condensate, leading to droplets. Thus, the pressure has to be increased or the cooling temperature of the condensation assembly decreased.