Laboratory Vacuum Pumps

A vacuum pump removes air to create a low-pressure environment, the working principle behind vacuum filtration, degassing, and drawing liquid through a Büchner funnel. Ours range from a simple hand-operated pump for basic filtration to an adjustable-speed electric pump for continuous lab use.

Vacuum grease and a bell jar are sold alongside the pumps themselves: grease keeps ground-glass joints sealed under vacuum, and a bell jar gives you a sealed chamber to pull air from, useful for demonstrating pressure and for basic degassing work.

A gloved hand switching on a vacuum pump connected to a Buchner funnel and filter flask

What is a laboratory vacuum pump?

A vacuum pump removes air from a sealed system, lowering the pressure inside it below normal atmospheric pressure. In a school or lab setting that lower pressure is what pulls liquid through a Büchner funnel during filtration, draws dissolved gas out of a solution, or creates the near-empty chamber needed for a pressure demonstration under a bell jar.

Our range covers both ends of that job: a hand-operated pump for occasional, low-volume filtration, and an electric adjustable-speed or mini pump for labs running vacuum filtration regularly.

Common uses of laboratory vacuum pumps

Where the suction actually gets used.

  • A porcelain Buchner funnel of white solid on a filter flask connected by tubing to a vacuum pump

    Vacuum Filtration

    Paired with a Büchner funnel and flask, a vacuum pump pulls liquid through filter paper far faster than gravity alone, standard practice for separating a precipitate from a solution.

  • A glass vacuum desiccator on a laboratory bench

    Degassing and Desiccation

    Pulling air out of a liquid or a sealed desiccator removes dissolved gas or moisture that would otherwise interfere with a weighing or a reaction.

  • Bell jar pressure demonstration with hand vacuum pump

    Pressure Demonstrations

    A bell jar connected to a hand pump is a classic way to show what happens to a balloon, a marshmallow, or a ringing bell as air is removed.

  • A gloved hand applying vacuum grease from a tube to a ground-glass joint on apparatus

    Maintaining Vacuum Seals

    Vacuum grease keeps ground-glass joints airtight under vacuum, stopping a slow leak from undoing an otherwise good pump.

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