Pumps

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  • Image of Thomas Chem-Resistant Check Valve

    Thomas Chem-Resistant Check Valve

    Tubing barbed check valves are constructed of chemical-resistant Kynar body and Viton valve for an inert high purity smooth and clear flow path. Use with acids, bases, water, chemical processing, and alcohols. Use for liquids, gases, pressure, and vacuum applications. Operating ranges are 0 to 50...
  • Image of Thomas Mini Variable Flow Pumps

    Thomas Mini Variable Flow Pumps

    Compact, variable-flow, bi-directional, self-priming peristaltic pumps Offers precise flows of 0.005 to 600 mL /min Pumps liquids and gases Comes ready-to-use Ideal for use in liquid chromatography, collecting fractions, circulating fluids/buffers in baths and moving corrosive materials. Provide...
  • Image of Air Pump

    Air Pump

    Item #: 7893E50
    An oilless single-cylinder, positive displacement pump Motor mounted piston has self-lubricating Teflon sealing rings Provides oil-free exhaust at pressure up to 75 psi (520 kPa) or vacuum up to 25” Hg in continuous operation Produces pressure to 100 psi (690 kPa) in intermittent operation...
  • Image of Variable Flow Chemical Transfer Pump

    Variable Flow Chemical Transfer Pump

    Item #: 7886M14
    Chemical-resistant case and wetted parts Pumps from 120 mL to 2.2 L per minute (4.2 oz. to 0.6 gal.) Suction lift: 10 feet wet, 4 inches dry Highly versatile design allows use with fluid temperatures from -40 to 200°F (-40 to 90°C) and viscosity up to 200 centipoise. Barbed inlet/outlet ports use...
  • Image of Aspiration/Pressure Transfer Stations

    Aspiration/Pressure Transfer Stations

    Oil free 115 or 230V versions Autoclavable receiver Standard oil-free station is an economical portable solution for aspirating or filtering. Unit will shut off automatically when 1.2 L collection receiver is full. All wetted parts are treated for corrosion protection from moisture. Units are...
  • Image of Cartridge Pumps

    Cartridge Pumps

    SCI Q Speed range 0.5-90 rpm Switch selectable from 100-120 V to 220-240 V Digital closed-loop 180:1 speed control Pump liquids from 0.0003 to 21 mL /min per channel through 4 to 32 channels. Cartridges can be added or removed without disturbing pumping action of remaining channels. Microprocessor...
  • Image of Aspirator Pump

    Aspirator Pump

    Safely handles corrosive and volatile vapors No faucet connections Pulseless vacuum Quiet and safe Aspirates solvents without the need for cold or chemical traps; ideal for use with rotary evaporators, electrophoresis gel driers and distillation or filtration apparatus Uses a ten-liter...
  • Image of Ceramic Shaft Circulating Pump

    Ceramic Shaft Circulating Pump

    Centrifugal Pump, Magnetic Drive, Ceramic Shaft (7884J25, J45) Non-submersible pumps with leakproof, seal-less magnetic drive 99.5% pure alumina ceramic shaft and thrust washers for long trouble-free service in use with harsh solutions Self-lubricating carbon impeller bushing which is impervious to...
  • Placeholder Image for Buchi Vacuum Pump V-700/710 Secondary Condenser

    Buchi Vacuum Pump V-700/710 Secondary Condenser

    Vacuum Pump V-700/710 compact high performance condensers for producing maximum condensation of residual solvent vapor after the pump. At the same time it separates any liquid solvent from the pump, putting it directly into the receiving flask. Insulation sleeves prevent the formation of...
  • Image of Electronic Metering Pumps

    Electronic Metering Pumps

    Very flexible output/flow with the same pump Corrosion-proof with glass fiber reinforced polypropylene housings Adjustable stroke length and frequency Very low minimum outputs possible with 200:1 turndown ratios Maximum flow rates of up to 34 LPH at 60 psi Electromagnetic diaphragm metering pumps...
  • Placeholder Image for Buchi Vacuum Pump V-700 & V-710 Accessories

    Buchi Vacuum Pump V-700 & V-710 Accessories

    V-700/710 Secondary Condensers Vacuum Pump V-700/710 compact high performance condensers for producing maximum condensation of residual solvent vapor after the pump. At the same time it separates any liquid solvent from the pump, putting it directly into the receiving flask. Insulation sleeves...
  • Placeholder Image for Buchi V-850/855 Vacuum Controller Accessories

    Buchi V-850/855 Vacuum Controller Accessories

    1229D81 - Buchi V-850/855 Vacuum Controller Valve combined with condensate trap and non-return valve with attachment for Rotavapor (not necessary with V-700/710 in stand-alone systems). 1229D82 - Buchi RC-81 remote control can be used to control the vacuum controller and the Rotavapor: rotation,...
  • Image of Foot Switch

    Foot Switch

    Item #: 1228P24
    Foot Switch
  • Placeholder Image for Buchi V-850 / V-855 Vacuum Controller

    Buchi V-850 / V-855 Vacuum Controller

    To make the most of the potential of our Buchi Vacuum Pumps, we recommend a Vacuum Controller. The intuitive operating concept is suitable for a wide range of applications, from simple control of the set vacuum to automatic distillation of complex mixtures. Eliminate bumping with evaporation...
  • Image of Omnispense Plus

    Omnispense Plus

    Fully programmable, built-in constant flow rate dispenser Microprocessor controls One-step volume calibration Programmable soft start/stop Self-prompting LCD display Variable speed, peristaltic pump dispenser is programmable for delivery of preset volume over a specific time. Large LCD displays the...
  • Image of BVC 21 Vacuum Pump

    BVC 21 Vacuum Pump

    A portable stand-alone aspiration system when house vacuum is not available Vacuum-on-demand Corrosion-resistant Oil-free Quiet operation Precise touch-sensitive hand controller Convenient, stand-alone fluid aspirator with automatic vacuum control and portability. On-demand vacuum system isolates...
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