520Di Dispensing Pumps
Flexicon Aseptic aLiquid Filling
Industrial equipment
The 520Di dispensing pumps combine industrial power and reliability with unrivalled dispensing accuracy, delivering up to 3.5 L/min and pressure of up to 2 bar. The pump memory can store up to 50 dispensing programs using a simple interface with an on-screen keyboard. The pump outputs batch records in accordance with cGMP (current good manufacturing practices) requirements.
Precise and fast dispensing for ultimate batch consistency. System capacity is 50 ml dispensed in 2 seconds with ±0.5% accuracy.
520Di Dispensing Pumps
About the Product
The Watson-Marlow 520Di is a benchtop dispensing pump designed for high-precision fluid transfer in the pharmaceutical, biotechnology, food & beverage, and laboratory industries. It combines the proven reliability of peristaltic pumping with accurate, repeatable dosing for a wide range of process fluids.
Delivering flow rates of up to 3.5 L/min at pressures of up to 2 bar, the 520Di provides dosing accuracy of up to ±0.5%. The process fluid comes into contact only with the inner surface of the tubing, eliminating the risk of product contamination and allowing fast, simple product changeovers.
The system supports up to 50 user-defined dispensing programs, including volume, speed, interval, ramp, and anti-drip settings. Its intuitive interface enables quick switching between production recipes without additional setup.
The 520Di can operate as a standalone benchtop dispenser or be integrated into automated filling lines via digital control interfaces. With production reporting capabilities and support for external device integration, it is well suited for cGMP-compliant manufacturing environments.
Laboratories & R&D
Preparation of laboratory solutions, reagent dispensing, and filling of laboratory containers, Petri dishes, bottles, and media bags.
Pharmaceutical Manufacturing
High-precision dispensing of injectable solutions, liquid pharmaceuticals, and components for aseptic filling processes.
Diagnostic Reagents & Food & Beverage
Accurate dispensing of diagnostic reagents, buffer solutions, and test kit components, as well as colorings, flavorings, vitamins, and food additives for food and beverage production.
Biotechnology
Preparation of culture media, and accurate dispensing of reagents, buffer solutions, and other sensitive biological products.
Applications
520Di Dispensing Pumps
Fully automated aseptic filling/refilling process in biopharmaceuticals and pharmaceuticals manufacturing
Tabletop preparation of media or reagents in laboratory conditions — filling or inoculation of vials, bottles, Petri dishes, and media bags
NEMA2 and NEMA4X (IP66 and IP31) protection for high-pressure washdown
Addition of colorants, dyes, flavorings, vitamins, and other ingredients in food production
Dispensing accuracy ±0.5%
5-year warranty
520Di Dispensing Pumps
Technical Specifications
Maximum Flow Rate
3.5 L/min
3.5 L/min
Maximum Pressure
2 bar
2 bar
Dosing Accuracy
Up to ±0.5%
Up to ±0.5%
Speed Control Range
2200:1
2200:1
Power Supply
110/230 V AC, 50/60 Hz
110/230 V AC, 50/60 Hz
Weight
9.8–10.7 kg
9.8–10.7 kg
Additional Resources
Operating Manuals
Specifications
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