VWR Pumps, Variable Flow is a reliable and dependable addition to the VWR Laboratory Apparatus family of products. Combining top-notch and uncompromising quality with an affordable price, the VWR Pumps, Variable Flow 3389 can fulfill your laboratory needs while still offering a great value for the money. 

Product Category Description:

These variable flow peristaltic pumps provide precise delivery. They are compact and ideal for applications in liquid chromatography, fraction collection, fluids/buffers circulation in baths, and corrosive material movement. Bidirectional, self-priming pumps provide outstanding flow control and flexibility for transferring and dosing liquids. Fluid contacts only the tubing for contamination-free pumping.

Flow rates for the two units Lab Recyclers is offering range from 0.4 to 85.0mL/min. for one unit to 4-600 mL/min. for the second. Specify which flow rate desired when ordering.

Variable speed flow control and five tubing sizes allow a wide flow range and fine resolution. Revolution of one roller delivers a precisely measured volume specific to the tubing size and motor speed.

Tubing can be used with fluids 62 to 260C (80 to 500F). Tubing is autoclavable for use with food, pharmaceutical, and other critical solutions. Pumps liquid or gas, and pumping dry is not harmful to unit. The pump has a purge/prime switch for high speed emptying/filling. It also reverses at the touch of a switch for easy draining. Three rollers reduce flow pulsation, prevent siphoning, and eliminate the need for check valves. There are no valves to clog or seals to leak. Housed in a chemical-resistant ABS plastic case. For 115V operation.