Pipet Bulbs
Pipet Bulbs
Flexible, variable-capacity bulbs used to create a vacuum or apply pressure to the liquid contents of serological, volumetric, or transfer pipets to collect, transfer, and dispense liquids; available in various styles and materials.
Kinds of Pipet Bulbs
• Simple suction rubber bulbs or teats for use with small Pasteur pipets or transfer pipets that operate on a simple ‘suck-in and blow-out’ principle
• Larger, heavier-duty simple suction bulbs with thicker walls for larger pipets
• Safety pipet bulbs for use with serological or volumetric pipets that avoid the outdated and unsafe practice of using mouth suction
Safety pipet bulbs are typically made of silicone, natural rubber, or synthetic rubber. They have a tight-fitting nozzle into which the top end of the pipet is inserted. They may have three ‘pinch-and-release’ ball-valve openings operated in sequence to control (1) the expulsion of air from the bulb; (2) the suction of liquid into the pipet; and, (3) liquid discharge. So called ‘flip’ pipet fillers have just two operating valves to facilitate one-handed usage. Most safety bulbs are of a universal ‘one-size-fits-all’ design, and generally accommodate a range of pipet capacities from 1 mL up to 100 mL or more.
How Are pipet Bulbs Used in the Lab?
• Transfer of hazardous reagents and chemicals
• Routine and repetitive dispensing of sample aliquots
• Controlled drop-by-drop transfer of reagents or histological stains
Bulbs are generally washable for repeated use, but care must be taken to avoid ingress of aggressive fluid into the interior of the bulb which could cause contamination, damage, or malfunction.
Deutsch Neumann™ Bulbs for Smaller Pipettes
Excellent for use with Pasteur pipettes. Deutsch Neumann™ Bulbs for Smaller Pipettes are manufactured from natural rubber and silicon.
Deutsch Neumann™ Bulbs for Smaller Pipettes
Excellent for use with Pasteur pipettes. Deutsch Neumann™ Bulbs for Smaller Pipettes are manufactured from silicone (VMQ).
Fisherbrand™ Bulbs for Small Pipettes
Flexible, easy-to-attach Bulbs for Small Pipettes.
Promotions are available
Brand™ Pipetting Aid
For BLAUBRAND™ intraEND micropipettes of 1uL or more.
Fisherbrand™ Rubber Pipette Bulbs for Bulb or Cylindrical Pipettes
Excellent for all media that do not attack rubber. Fisherbrand™ Pipette Bulbs come with three glassball valves, adjustable by finger pressure.
Teats for Pasteur pipettes
For use with Soda-lime Pasteur pipettes.
DWK Life Sciences Pipette bulb red, natural rubber, 2 ml
For removing or dispensing small quantities of liquids from Pasteur pipette or droppers.
Promotions are available
Fisherbrand™ Rubber Pipette Bulbs for Bulb or Cylindrical Pipettes
Excellent for all media that do not attack rubber. Fisherbrand™ Pipette Bulbs come with three glassball valves, adjustable by finger pressure.
Promotions are available
Fisherbrand™ Dropper Bulb
Make dispensing easier with Fisherbrand Dropper Bulbs. These bulbs, made of blue silicone come in two sizes for more convenience in the lab.
Promotions are available
Fisherbrand™ Rubber Pipette Bulbs for Bulb or Cylindrical Pipettes
Excellent for all media that do not attack rubber. Fisherbrand™ Pipette Bulbs come with three glassball valves, adjustable by finger pressure.
Promotions are available
Heathrow Scientific™ Dropper Vial Bulb 3 mL
The silicone rubber dropper vial bulb is designed for use with Pasteur pipets, small pipets, and medicine droppers.
Promotions are available
Deutsch Neumann™ Rubber Safety Pipette Fillers
Reduces the risks of pipetting when handling toxic, corrosive, bacteria contaminated or bad smelling liquids. Deutsch Neumann™ Rubber Safety Pipette Fillers are manufactured from natural rubber.