Heidolph Rotavac Valve Control Vacuum Pump

Technical features Flow rate (max.) 21 l / min Ultimate vacuum (max.) 2 mbar (abs.) Operating pressu (more)re (max.) 0.5 bar (rel.) Permitted fluid temperature 5-40°C FFPM valve material Membrane material PTFE coating PPS pump head material Applications Rotary evaporators Distillation Centrifugal concentrators Aspiration of fluids Qualitative characteristics Clean operation, 100% oil free High suction speed, especially in the low vacuum range Adjustable speed control Exceptionally quiet Corrosion resistant Maintenance free INCLUDED: The KNF N920KT.29.18G diaphragm pump includes: - Power cord - Operator's guide - Manufacturer's documentation - 1 year manufacturer's warranty Download the data sheet for further information and accessories. NOT SURE WHICH VACUUM PUMP YOU NEED? Try following our guide to KNF pumps: VACUUM PUMPS FOR THE LABORATORY Or download the KNF guide: THE IDEAL DIAPHRAGM PUMP FOR EVERY APPLICATION

This Watson Marlow 205S Peristaltic Pump was removed from a university lab where it was surplus to r (more)equirements. The unit powers on and is in good cosmetic condition with minor marks from use. All buttons are responsive to the unit.

Gilson MiniPuls 3 peristaltic pump Technical characteristics Voltage: 220-240V, 50/60Hz Power: 45VA  (more)Speed: 0-48 revolutions 8 channels Standard flow rate: 0.3 µL/min – 30 mL/min at maximum pressure 0.5 MPa Pump head speed: adjustable 0 to 48 rpm with increments 0.01 rpm to 9.99 rpm and increments 0.1 rpm to 10 rpm Standard model pipe diameter: 0.25–4 mm (ID) External dimensions (L) x (D) x (H): 15 x 17.5 x 29.5 cm

VACUUBRAND PC 610 Select Chemistry Pumping Unit Ultimate Vacuum 1.5 mbar (1.1 Torr) Maximum Pumping (more) Speed 2.2 CFM at 60Hz Number of Heads/Stages 4/3 Features - VACUU·SELECT vacuum controller with graphical user interface simplifies work in the laboratory - Predefined applications save time and give reproducible results - Easy-to-use application editor allows own process sequences - Meets high vacuum requirements for most high boiling solvents - Excellent environmental friendliness due to efficient solvent recovery Our PC 600-series chemistry pumping units of this series are an excellent choice for supporting electronically controlled evaporation or drying processes with even many high boiling point solvents. Our popular MD 4C NT three-stage chemistry diaphragm pump, with its 2 mbar ultimate vacuum rating, is the heart of these pumping units. Typical applications include lab applications such as rotary evaporation, vacuum drying ovens, and vacuum distillation. The integrated VACUU·SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU·SELECT controller has you covered. Use manual set-point-control for simple processes, run distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, it constantly monitors the pressure and switches to 2 point control mode to hold the pressure stable when a boiling point is detected. The controller also allows for easy manual vacuum control for simple processes. The inlet separator, made of glass with protective coating, prevents particles and liquid droplets from entering the pump. The exhaust vapor condenser provides nearly 100% recovery of solvents for economical recycling and environmental protection.INCLUDED: The VACUUBRAND PC 610 Select Chemistry Pumping Unit includes: - Power Cord - Operator's Manual - Manufacturer's Documentation - 2 Year Manufacturer's Warranty

VACUUBRAND MD 4C NT Chemistry Diaphragm Pump Ultimate Vacuum 1.5 mbar Max. pumping speed at 60 Hz  (more)2.2 cfm Number of Heads/Stages 4/3 Features - Outstanding chemical resistance and superior vapor tolerance - Exceptionally high performance even at low vacuum - Excellent ultimate vacuum even with gas ballast - Whisper quiet and very low vibration - Long diaphragm life, maintenance-free drive system Three-stage chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet even challenging requirements. The three-stage design provides the advantageous combination of high pumping speed and very low ultimate vacuum. All parts of the MD 4C NT in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Due to the gas ballast valve and its very good ultimate vacuum (even with gas ballast) the MD 4C NT is also suitable for pumping condensable vapors of high-boiling solvents. The NT-series features further improved performance data, easy service and superior vapor tolerance. Three-stage chemistry-design diaphragm pumps are an excellent choice for applications with corrosive gases and vapors with high vacuum requirements. Typical applications are parallel and rotary evaporators, concentrators, drying ovens and many other laboratory applications. The MD 4C NT has an outstanding performance for pumping large amounts of vapor, e.g., out of drying ovens and gel dryers. This powerful pump is at the heart of a complete family of well-proven and reliable vacuum systems and pumping units for larger lab applications.INCLUDED: The VACUUBRAND MD 4C NT Chemistry Diaphragm Pump includes: - Power Cord - Operator's Manual - Manufacturer's Documentation - 2 Year Manufacturer's Warranty