Quattroflow Products

Ensuring total product containment without abrasion

The Quattroflow® pump's method of operation allows it to gently, safely and securely convey aqueous solutions and biological products that are shear sensitive.

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Ideal solutions for critical applications

Quattroflow® develops and manufactures quaternary (four-piston) diaphragm pumps specifically designed for critical applications in the biopharma industry.

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Quattroflow Biopharma Pump QF2500S QF2500S-HT

Quattroflow 2500S Max. Flow Rate 2,500 lph


  • New patent-pending pump chamber design
  • Self-draining design
  • Linear flow performance
  • High flow stability even at low flow rates
  • Clean-in-place (CIP) and Steaming-in-place (SIP) capabilities


  • Integrated pump chamber, pump drive, motor and control box
  • Extended turndown ratio
  • Compact design

Technical Data

QF2500 Standard Motor QF2500S-HT Standard Motor
Flow Rate Maximum Eccentric Shaft 5° 2,500 lph (41 lpm) 2,500 lph (41 lpm)
Flow Rate Minimum Eccentric Shaft 5° 50 lph (0.8 lpm) 25 lph (0.41 lpm)
Pressure Temperature of Fluid < 40°C (104°F) 6 bar (87 psi) 6 bar (87 psi)
Temperature of Fluid > 40°C (104°F) 4 bar (58 psi) 4 bar (58 psi)
Maximum Temperature Fluid 80°C (176°F) 80°C (176°F)
CIP 90°C (194°F) 90°C (194°F)
Autoclave 130°C (266°F) 130°C (266°F)
Pump Speed Range rpm 30-1750 20-1800
Suction Lift Dry at Maximum Speed Eccentric Shaft 5° 4 - 4.5 m (13.1 - 14.7 ft) 4 - 4.5 m (13.1 - 14.7 ft)
Volume Specifications Approximated Volume per Revolution at Free Output 27 ml 27 ml
Approximated Filling Volume Without Connectors 210 ml 210 ml
Connection Specification (Standard) Connectors 1" TC 1" TC
Position of Connectors Front Front
Product Wetted Materials (Standard) Pump Chamber SS316L SS316L
Valve Plate SS316L SS316L
Diaphragms TPE TPE
Certificates/Proofs (Optional) Elastomere (product wetted) USP <88> Cl. VI; FDA21CFR177; BSE/TSE Safe USP <87> USP <87> Cl. VI; FDA21CFR177; BSE/TSE Safe
Stainless Steel Parts (product wetted) 3.1; Surface Roughness; Ferrite Content 3.1; Surface Roughness; Ferrite (EN10204)
Motor (Standard) Rated speed @ 50Hz 1445 min-1 1800 min-1
Voltage 230/400 V 400 V
Power 1.5 kW 1.5 kW
Pump Dimension with Motor and Housing Length 815 mm (32.09") 824 mm (32.44")
Width 215 mm (8.46") 275 mm (10.83")
Height 295 mm (11.61") 382.5 mm (15.06")
Pump Weight with Motor and Housing 63 kg (139 lb) 67 kg (148 lb.)

Other connection specifications, materials and motors available on request.


Click on the images to enlarge.

Quattroflow Biopharma Pump QF2500S Performance Chart
Perf Curve_QF2500S-HT