The LVS 105 T - 10 ef is the perfect partner for your rotary evaporator. It has been optimised for rotary evaporator application with an ultimate vacuum of 2 mbar and peak flow of 20 l/min, allowing non-volatiles such as DMF to be evaporated at 30⁰C. It combines a powerful built in chemical duty diaphragm vacuum pump with Ecoflex control principals. Heating of the pump heads allows a consistent clean vacuum without gas ballasting. The Ecoflex control continuously adjusts the pumping speed to match the vapour load of the process and allows the pump to exhibit single point control which reduces bumping and foaming whilst achieving increased evaporation rates.
The built in digital vacuum controller allows easy adjustment of the desired vacuum level as well as the option to select common solvents from the built in solvent library.
An inlet trap protects the pump from ingesting liquids and particles and an exhaust vapour condenser for optimal solvent recovery.
Scope of delivery: chemical duty diaphragm pump in casing, inlet trap, exhaust condenser, Vacuum Controller 521 with ecoflex digital vacuum control
Number of heads / stages
Max. pumping speed at 50 Hz in m³/h (l/min)
Ultimate pressure in mbar (Torr)
90 - 260V, 50/60Hz
Sound level (dB)
Dimensions (W/D/H) in mm
Weight kg (lbs)
Service / Accessories
Vacuum Control-Box VCB 521 cv - 600053
Connection cable black - with plug CH, Cable length 1.5 m - 825877
Operating software "WELCH-Control 521" CD - 620637-01
Welch is part of Gardner Denver Medical Group, a leading global manufacturer of flow control products for medical, life sciences and selected other industries. A global production network with seven modern manufacturing facilities throughout the U.S., Europe and Asia allows for fast and flexible reactions to the customer needs.