VWR®, Bottle Top Dispensers

Designed with ergonomics and intuitive handling in mind, VWR® Bottle Top Dispensers exhibit excellent chemical compatibility and offer reliable precision in practical laboratory environments.

Ergonomically designed
Excellent chemical compatibility; dispensers can also be used with solvents
Re-circulation valve to prevent loss of reagents
Springless Valve™ for jam-free dispensing
PTFE piston with ETP O-Ring
Volume adjustment knob enables effortless volume setting
Flexible delivery nozzle
Fully autoclavable at 121 °C and 15 psi for a duration of 10 to 15 minutes

The dispensers use a re-circulation valve which prevents the loss of reagents during purging by re-directing them into the mounted bottle, thus facilitating bubble-free dispensing. A PTFE piston with ETP O-Ring, coupled with a unique Springless Valve™, facilitates effortless piston movement and ensures high chemical compatibility. VWR® Bottle Top Dispensers can also be used with solvents (refer to chemical compatibility chart). A specially designed volume adjustment knob allows 180° rotation for easy and effortless volume setting. It also has a flexible delivery nozzle that allows users to change the angle of dispensing.

: Meet ISO 8655 standard for accuracy and precision,.Manufacturing Standards: ISO 9001, ISO 13485, ISO 17025.

: Each unit includes a telescoping suction tube, recirculation tube, five thread adapters (28, 32, 38, 40 and 45 mm) and an individual quality control certificate that documents the serial number and test values, and confirms the conformity according to weights and measures regulations as per ISO 8655.

: Maintain instrument and reagent temperature between 10 to 40 °C (From 50 to 104 °F). Maintain reagent vapor pressure up to 600 mbar (maximum). Aspirate slowly above 300 mbar pressure in order to prevent the liquid from boiling. Kinematic viscosity up to 500 mm²/s. Relative air humidity between 20% and 90%. Use fluids with density up to 2,2 g/cm³.