Pumps, Vacuum

Three features to extend service intervals: Cool running slows rate of corrosion and slows down rates of oil consumption Large oil capacity minimizes the rates of oil breakdown and reduces chemical attack within pump Internal surface protection on pump internals and PTFE coating on oil case slows...

Durable, chemical resistant PTFE construction Easy to operate and maintain Use Welch ® DryFast ® diaphragm vacuum pumps for tough applications requiring chemical resistance. DryFast’s Advanced Vapor Management controls vacuum for precise distillations using handy adjustment knob....

Ai WaterVac 0.7 cfm is an oil-free, portable, chemical resistant, 2-head recirculating water pump, with simplified maintenance, and no frequent and costly oil change. All major parts are made of PTFE, these economical vacuum pumps are perfect for tough lab applications. Free three feet 3/8"...

A popular vacuum pump suitable for general laboratory tasks, such as large scale vacuum filtration, solid phase extraction, degassing and many other tasks. Ultimate Vacuum: 52Torr (70mbar) Free Air Capacity: 133lpm(4.7cfm) Whisper Quiet. The ME8C NT has been completely redesigned...

Designed specifically for non-corrosive, non-evaporative applications, the 5Torr, 37lpm MZ2 NT Aluminum-FKM diaphragm vacuum pump is an excellent choice for a wide range of laboratory and process plant vacuum applications. It is even quieter and has less vibration than it’s predecessor....

Model PILOT5000 and PILOT5000C-02 diaphragm vacuum pump are durable and chemical resistant. All contact surfaces are PTFE coated. They come with a liquid inlet trap and vacuum regulator making it a perfect choice for vacuum filtration, desiccation, and other mid-range vacuum applications. The...

Economical Oil Free Adjustable Vacuum / Pressure Use these affordable oil-free pumps to provide convenient vacuum throughout the lab. Welch WOB-L piston pumps provide adjustable vacuum for filtration, SPE, vacuum ovens, and more. These pumps are an efficient alternative to water aspirators. Select...

An excellent choice for a wide variety of non-corrosive and non-evaporative applications, the oil-free ME8 NT Aluminum-FKM diaphragm features an ultimate vacuum of 52Torr and flowrates as high as 130lpm for increased power and productivity. It is even quieter, with less vibration than...

In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it. Particularly large...

New Ai EasyVac 7 cfm (110V model) single-stage sliding-vane rotary compact vacuum pump with 3/8" hose barb vacuum connector. Comes with a 3-foot food grade silicone hose and a exhaust oil mist filter which also returns trapped pump oil back to the pump and makes the pump quieter to run. It is...

The new family of BVC fluid aspiration systems are the first to account for the needs of a modern Biology laboratory. Three models: Basic, Control and Professional to serve your fluid aspiration needs Containment: 2 or 4 liter vessels for safe collection and disposal of your biological waste; an...

Ai SuperVac dual-stage vacuum pump will take your vacuum down to 0.3 micron in minutes. These pumps are designed for reliable long time continuous operation. Comes standard with all necessary fittings and a high capacity exhaust oil mist filter which also returns trapped pump oil back to the pump...

Designed specifically for non-corrosive, non-evaporative applications, the 70mbar, 38 lpm ME2 NT Aluminum-FKM diaphragm vacuum pump is an excellent choice for a wide range of laboratory and process plant vacuum applications. Eliminates Oil Changes These vacuum pumps utilize diaphragm vacuum...

A popular vacuum pump suitable for many laboratory tasks, vacuum filtration, degassing, solid phase extraction and many other tasks. Ultimate Vacuum: 52Torr (70mbar) Free Air Capacity: 73lpm (2.6cfm) Whisper Quiet. These vacuum pumps utilize diaphragm vacuum technology for totally dry...

 Measures in the rough/coarse vacuum range from atmosphere to 1 mBar/Torr/hPa with user selectable units.  Corrosion-resistant capacitive transducer provides accurate, absolute pressure measurement. Has digital display for precise readings, and quasi-analog display for trend indication....

A vacuum pump excellent for many laboratory fluid movement applications including vacuum filtration and solid phase extraction, as well as degassing, and evaporation of volatile solvents. Ultimate vacuum: 52Torr (70mbar) Free air capacity: 38 lpm (1.4cfm) Whisper Quiet. Operation at ultimate vacuum...

Our new EasyVac 9 CFM vacuum pump is now 110V/220V 50/60Hz switchable! Ai EV9 are dual-stage high speed sliding-vane rotary compact vacuum pump with KF25 vacuum connector. Comes with all necessary fittings and a exhaust oil mist filter which also returns trapped pump oil back to the pump and makes...

The new MZ1C diaphragm pumps offer a compact, high performance and easy-to-use solution for many basic laboratory tasks, such as filtration, and smaller evaporative applications, such basic rotary evaporation, or small gel dryers. The functional, space saving and innovative design with readily...

687010 and 687011 used with RC6, RZ2.5, RZ6, RZ9 662511 is used with RC6, RZ2.5 and RZ6 662518 is used with RZ9 698000 is used with RZ2.5 698003 is used with RZ2.5 and RZ6 698007 and 698017 is used with RZ9

A powerful vacuum pump suitable for many larger laboratory tasks, vacuum ovens, centrifugal concentrators, large rotary evaporators and many other tasks. Ultimate Vacuum: 1.1 Torr (1.5 mbar) Free Air Capacity: 52 lpm (2.2cfm) Whisper Quiet. The MD4C NT has been completely redesigned...

The economical and silent vacuum source The chemically resistant PTFE diaphragm vacuum pump impresses with its very silent and economical operation. With a flow rate of 1.8 m 3 /h and an ultimate vacuum of 5 mbar, it is optimally suited to be combined with the Rotavapor® R-300. Your most...

Tune-able Vacuum for Chemical Applications - filtrations and volatile solvent evaporations - rotovaps, concentrators, & vacuum ovens. Achieve precise vacuum control for organic evaporations with Welch's Advanced Vapor Management (AVM). Choose from six dry PTFE vacuum pump models with flows...

The VACUUBRAND® VACUU•SELECT® complete vacuum controller provides the same intuitive touch screeen graphic interface as our PC 3001 VARIO® select, but equipped with a solenoid valve for use with conventional diaphragm pumps from any manufacturer.  The VACUU•SELECT®...