Quattro Fluid SystemFlow 1000S quaternary diaphragm positive‑displacement pump

This listing is for 1 of 2 Quattro Fluid SystemFlow 1000S

These units is in full working condition and is ready for immediate use

Overview & Application

The Quattroflow 1000 S is a quaternary (four‑piston) diaphragm positive‑displacement pump—engineered for gentle, sterile handling of shear‑sensitive fluids such as proteins, vaccines, cell suspensions, and other biopharmaceutical or food-grade products. Its design features—like seal‑less operation, low shear, low pulsation, and dry‑run capability—make it ideal for critical applications including:

Filtration systems: Tangential‑flow filtration (TFF), recirculation pumps, filter cartridges

Chromatography: Gradient mixing and feed pumps

Centrifuge feeding and homogenization

Aseptic filling lines and other sensitive processing tasks

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Commonly processed media include albumin, IgG antibodies, enzymes, vaccines, cell and virus suspensions, dairy products, and cosmetic or polymeric solutions.

Technical Specifications

Here’s what’s known about its performance and build:

Flow rate: Continuously variable between ~25 to 1000 L/h (at atmospheric pressure); around 750 L/h at 6 bar (depending on configuration)

Max Pressure: Up to 6 bar, with high‑pressure variants available upon request

Drive mechanism: Four‑piston diaphragm setup actuated by an eccentric shaft; standard variant uses a 5° eccentric shaft reaching up to 1,800 rpm

Material & Construction:

Pump head: Stainless steel grades 1.4435 or 1.4539, optional alternatives (like PEEK) available

Membranes: Santoprene (diaphragm), EPDM (valve membranes)

Priming and Pumping Features:

Self‑priming, dry‑run capable

Four directional porting—pump orientation flexible

No shaft seals or wetted rotating parts, minimizing wear and product heating

Internal volume (filling volume): Approx 35 mL; designed to minimize dead volume and aid product recovery

Connections: Standard ¾″ TC (Tri‑Clamp) sanitary ferrule; other flange types available

Dimensions & Weight:

Pump: 523 × 155 × 212 mm, ~23 kg

Control unit (frequency inverter): 350 × 155 × 212 mm, ~6 kg

Electrical: 230 V AC (50 Hz) via a control box with 6.3 A fuse; motor IP54, control box IP53

Key Advantages

This model offers several standout benefits:

Gentle, high‑integrity fluid handling—ideal for fragile biologics due to low shear and pulsation

Contamination-free design—no mechanical seals, minimal abrasion

Robust operation—powerful 370 W motor, simplified maintenance with fewer parts

Aseptic and sterile process readiness—autoclavable, self‑draining, hygienic construction

Installation adaptability—four flow directions, small footprint, flexible hookups