Vacuum pumps

The VACUU LAN® local vacuum network allows multiple work stations to be connected to a single vacuum pump. This is useful for almost any conventional vacuum application in a chemical laboratory VACUU LAN® can be directly incorporated into new laboratory installations or retro-fitted. All assemblies have integral check (1-way) valves. A practical and economical solution for multiple vacuum users in a single laboratory.Detailed brochures are available on request!The VACUU LAN® local vacuum network allows multiple work stations to be connected to a single vacuum pump. This is useful for almost any conventional vacuum application in a chemical laboratory VACUU LAN® can be directly incorporated into new laboratory installations or retro-fitted. All assemblies have integral check (1-way) valves. A practical and economical solution for multiple vacuum users in a single laboratory.Detailed brochures are available on request!

Vacuum system for 1 rotary evaporator.Application: Rotary evaporation, distillation, central vacuum supplyFlow rate up to 1.21 m³/h / Ultimate vacuum 2 mbar abs.Automatic, precise boiling point detection and boiling point tracking using an integrated ramp functionPPS pump heads in combination with PTFE-coated diaphragms are ideal for aggressive/corrosive gases and vapoursSpeed controlledIntegrated gas ballast valveConnectors for tube: pneumatic ID10 mm, coolants ID8 mm, inert gas ID6 mm

The Rotary Vane Vacuum Pump RC 6 has been designed to minimise the adverse effects of condensable and corrosive vapours. Its main components are a two-stage rotary-vane pump and a two-stage chemistry diaphragm for optimised corrosion resistance. The diaphragm pump continuously evacuates the oil reservoir of the rotary-vane pump in order to keep the partial pressures of solvent vapours, oxygen and corrosive gases at a low level and/or below their condensation point. The RC 6 is a low-maintenance pump for freeze-drying and other applications requiring an ultimate vacuum in the 10-3 mbar range.Scope of supply: Pump, overload circuit breaker and mains cable (2 m), centering and clamping ring for inlet, particulate filter, operating instructions, oil (bottle of 500 ml)Country-specific power cord versions available on request.

This chemistry vacuum system has a wide range of applications like evacuation, evaporation and pumping of gases and vapors. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The separator at the outlet collects condensate and avoids condensate backflow towards the pump.Good chemical resistance and vapor toleranceHigh performance even at low vacuumGood vacuum even with gas ballastQuiet and ultra low vibrationOilfreeInlet and outlet separatorThis chemistry vacuum system has a wide range of applications like evacuation, evaporation and pumping of gases and vapors. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The separator at the outlet collects condensate and avoids condensate backflow towards the pump.Good chemical resistance and vapor toleranceHigh performance even at low vacuumGood vacuum even with gas ballastQuiet and ultra low vibrationOilfreeInlet and outlet separator

The Welch CRVpro pumps are high-performance two-stage vacuum pumps. They impress with their long service life, high reliability and low maintenance requirements. The CRVpro series are the perfect partners for freeze dryers, vacuum concentrators, Schlenklines, glove boxes and vacuum ovens, as well as industrial applications.Cool running operation for less oil consumptionCoated oil case to slow metal corrosionExtended oil change intervals for less maintenance costsDual voltageScope of supply: Every pump is supplied complete with Directorr™ Premium vacuum pump oil, centering rings, clamping rings and motor overload protection.Scope of supply: CRVpro rotary vane pump, oil mist separator AKD 16, 2-way valve, hose connector, vacuum hose (1.5 m), oil drain kit

Pulsefree dispensing pumps with excellent repeatability!Flow rates 1.7 to 4680 ml/min (depending on mounted pump-head)5''-touch screenOperating modes:Pumping by drive speed (rpm)Pumping by flow rate (ml/min)Dispensing by volume (ml)Dispensing by time (0.1 s up to 999 hrs)Dispensing by volume within a pre-set timeInterval dispensing by volume with a pauseInterval dispensing by time with a pauseSetting the number of dispensing cyclesPause time setting (from 0.1 s up to 999 hrs)Back-steps for drip-free dispensingReversible rotation direction (only for Cavity Style pumpheads)Calibrating functions:For flow rate (ml/min)For dispensing volume (ml)

The VARIO® design provides vacuum control by precise and continuous adaption of the diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and better ultimate vacuum. Extend applications with non-aggressive gases whether used in the laboratory or for industrial processesVery low leak rate due to enhanced leak-tight tubing connections, resulting in consistent performance characteristics - even after many years of operation. Ideal for analytical applicationsLong diaphragm and valve lifetimes: made of highly flexible FPM, with fabric-reinforced double diaphragms for improved long term stabilityVery quiet and ultra low vibration due to compact drive with patented motor drive system. Ideal as a built-in component for sensitive analytical equipmentEasy to clean due to smooth surfaces. A robust solution for numerous applications in industrial environmentsCountry-specific power cord versions available on request.The VARIO® design provides vacuum control by precise and continuous adaption of the diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and better ultimate vacuum. Extend applications with non-aggressive gases whether used in the laboratory or for industrial processesVery low leak rate due to enhanced leak-tight tubing connections, resulting in consistent performance characteristics - even after many years of operation. Ideal for analytical applicationsLong diaphragm and valve lifetimes: made of highly flexible FPM, with fabric-reinforced double diaphragms for improved long term stabilityVery quiet and ultra low vibration due to compact drive with patented motor drive system. Ideal as a built-in component for sensitive analytical equipmentEasy to clean due to smooth surfaces. A robust solution for numerous applications in industrial environmentsCountry-specific power cord versions available on request.

The VARIO® design provides vacuum control by precise and continuous adaption of the diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and better ultimate vacuum. Extend applications with non-aggressive gases whether used in the laboratory or for industrial processesVery low leak rate due to enhanced leak-tight tubing connections, resulting in consistent performance characteristics - even after many years of operation. Ideal for analytical applicationsLong diaphragm and valve lifetimes: made of highly flexible FPM, with fabric-reinforced double diaphragms for improved long term stabilityVery quiet and ultra low vibration due to compact drive with patented motor drive system. Ideal as a built-in component for sensitive analytical equipmentEasy to clean due to smooth surfaces. A robust solution for numerous applications in industrial environmentsCountry-specific power cord versions available on request.The VARIO® design provides vacuum control by precise and continuous adaption of the diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and better ultimate vacuum. Extend applications with non-aggressive gases whether used in the laboratory or for industrial processesVery low leak rate due to enhanced leak-tight tubing connections, resulting in consistent performance characteristics - even after many years of operation. Ideal for analytical applicationsLong diaphragm and valve lifetimes: made of highly flexible FPM, with fabric-reinforced double diaphragms for improved long term stabilityVery quiet and ultra low vibration due to compact drive with patented motor drive system. Ideal as a built-in component for sensitive analytical equipmentEasy to clean due to smooth surfaces. A robust solution for numerous applications in industrial environmentsCountry-specific power cord versions available on request.

The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.

The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.

The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.The combination of speed controlled VARIO® chemistry diaphragm pumps and the new VACUU·SELECT vacuum controller makes the VARIO® select chemistry pumps the ideal solution for chemical processes that require precise vacuum, such as rotary evaporation, vacuum drying or vacuum concentration.High chemical resistance and therefore ideally suited for pumping aggressive gases and vapoursShort process times and smooth running due to optimal setting of the pressure via the VACUU·SELECT controllerThe VARIO® technology controls the vacuum precisely and efficiently via motor speedPower consumption, maintenance and noise are exceptionally lowThe outlet catchpot and solvent condenser combine to prevent solvent vapor emissions into the lab, allowing for nearly full recovery of solventsCountry-specific power cord versions available on request.

The VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfacesThe VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfaces

The VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfacesThe VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfaces

The VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfacesThe VARIO® design provides vacuum control by precise and continuous adaption of the chemistry diaphragm pumps motor speed, and includes the vacuum pump, as well as the VACUU·SELECT controller.Improved performance, increased pumping speed and lower ultimate vacuum extends applications in both the laboratory and in industrial applicationsLong-life diaphragm with PTFE sandwich construction and unstressed diaphragm supportEasy service/exchange of diaphragm or valves due to novel integrated valve head assembly. Easy dismantling, cleaning and reassembly without requiring readjustmentVery quiet and ultra low vibration due to compact drive with patented motor control system. Ideal as a built-in component for sensitive equipment in both the laboratory and in industrySuperior vapour tolerance due to integral tubing connections and gas ballast valve for continuous purge Easy to clean due to smooth exterior surfaces

The powerful rotary vane pumps are ideal for laboratory and process applications that require a very good ultimate vacuum at medium to increased gas flow rate. Typical applications are lyophilisation, fine vacuum distillation, and drying chambers.High flow rate even at vacuum levels approaching ultimate vacuumHigh water vapor tolerance due to efficient gas ballastVery good ultimate vacuum even with gas ballastVacuum-tight at switch-off without suction nozzle valveLong oil change intervals due to large usable oil volumeEasy maintenance due to telescopic designScope of supply: Rotary vane pump, oil mist filter FO, butterfly valve VS 16, vacuum gauge DCP 3000 with vacuum sensor VSP 3000, manual

The powerful rotary vane pumps are ideal for laboratory and process applications that require a very good ultimate vacuum at medium to increased gas flow rate. Typical applications are lyophilisation, fine vacuum distillation, and drying chambers.High flow rate even at vacuum levels approaching ultimate vacuumHigh water vapor tolerance due to efficient gas ballastVery good ultimate vacuum even with gas ballastVacuum-tight at switch-off without suction nozzle valveLong oil change intervals due to large usable oil volumeEasy maintenance due to telescopic designScope of supply: Rotary vane pump, oil mist filter FO, butterfly valve VS 16, vacuum gauge VACUU·VIEW extended, manual