Quattroflow 5050 Quaternary
Diaphragm Pump

Our Quattroflow 5050 Single-Use and Multi-Use Pumps offer compact dimensions, multi-directional connections, and a wide flow rate.

  • Flow rate of 0.83 – 83 lpm
  • Compact footprint for skid applications
  • Self-priming and can run dry

Watch the Video

Learn more about our Quattroflow 5050 Quaternary Diaphragm pump which has pressure pulsation measurements in the range between 0.05 and 0.13 bars in the video above.

Quattroflow 5050 Quaternary Diaphragm Pump Minimal Particle Generation

Minimal Particle Generation

The QF5050 has no mechanical shafts, seals, or wetted rotating parts, helping to minimize particle generation and maintain total product containment without abrasion.


With the ability to handle flow rates up to 83 lpm, the Quattroflow 5050 Single-Use and Multi-Use Pump is ideal because of it's high turn-down ratio and compact footprint. This pump is designed for integration on process systems.

This quaternary diaphragm pump model possesses a 4-piston design that has been created to include multi-directional pump head connections. The Quattroflow 5050 pump is able to support a complete flow range with one drive – with no further drive option needed.

Flow rates: 0.83 - 83 lpm
Turndown ratio: 100:1
Single-use configuration: Single-use pump chambers can be supplied gamma irradiated or autoclaved
Multi-use configuration: Stainless steel pump chambers compatible with autoclave, clean-in-place (CIP), and sterilize-in-place (SIP) protocols

Features & Benefits

  • Available in,
    • Single-use, solid polypropylene
    • Multi-use stainless steel pump chamber
  • Ideal compact footprint
  • High turndown ratio
  • Self-priming design that can be run dry
  • Multi-option installation flexibility
  • Optimal design for retrofit skid applications
  • Optional connections and materials upon request
  • Fully drainable and cleanable in vertical position


  • Filtration technology
  • To recirculate feed/retentate (e.g. membrane cassettes, hollow fibre, spiral wound, ceramic elements)
  • Feed pump for filter cartridges or plate and frame depth filters
  • Chromatography -packing of chromatography columns
  • Feed pump to mix gradients, for centrifuges or separators, homogenizers, and filling machines
  • As well as many other applications

Technical Specs

Flow Rate Min: Eccentric Shaft 6° 50 lph (0.83.lpm)
Flow Rate Max: Eccentric Shaft 6° 5000 lph (83 lpm)
Volume Specifications: Approximated Volume per Revolution at Free Output 95 ml
Filling Volume Without Connectors 820 ml
Certificates/ Proofs (Optional): Elastomere (product wetted) USP <88> Cl. VI; FDA21CFR177;BSE/TSE Safe
Stainless Steel Parts (product wetted) 3.1; Surface Roughness;Ferrite Content
Motor Voltage 400V

Product Comparison


Quattroflow 5050
Diaphragm Pump

  • Flow rate: 0.83 – 83 lpm
  • Compact footprint
  • For skid applications
  • Self-priming
  • Multi-option installation flexibility
  • Fully drainable and cleanable
Quattroflow 4400 Diaphragm Pump

Quattroflow 4400
Diaphragm Pump

  • Flow rate: 0.83 - 83 lpm
  • Range of flow rates
  • High accuracy
  • Compact design
  • “All-in-One” technology
  • Extended turndown ratio
FlowMaxx Pro 2500 Quaternary Diaphragm Pump

FlowMaxx Pro 4400
Diaphragm Pump

  • Flow sensor integration
  • Pressure sensor integration
  • Self-priming design
  • Low shear
  • Low heat generation
  • Low cell damage

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