The 520Di dispensing pump is designed for accurate metering,
dosing and transferring of sensitive fluids in biopharmaceutical environments. Ideal
for filtration, fermentation and dispensing applications, the 520Di is well
suited for filling lines in pharmaceutical and biotech production. The pump accepts
eight different tubing materials and sizes up to 9.6mm for flow rates ranging
from 4 microliters/min up to 3.5 liters/min and pressures up to 100 psi. Featuring
spring loaded stainless-steel rollers and a larger swept volume pump head, the
520Di combines the gentle handling of fluids with a greatly increased capacity.
The gentle nature of the peristaltic pumping action is important for this type
of application because of the fragility of protein string, enzyme-based
vaccines and other biochemicals, which can be easily damaged. The 520Di has
full dispensing capability, enabling accurate batch dispensing and automatic or
single-shot operation. While the product is being pumped, a ramp and drip
feature allows soft start and graduated dosing to reduce splashing or foaming. Users
are also able to carry out periodic dose recalibration ‘on-the-fly’ without
disturbing the flow of the batch. Up to 50 individual dispensing programs,
including all dose parameters and calibration, can be stored in the memory with
full, 8-character file names.
Watson-Marlow, Wilmington,
MA 01887.
www.watson-marlow.com or call 800-282-8823