PSG Biotech Products

From Laboratory to Commercial Scale

Best-in-class pump, flow control and flow-measurement solutions that safely transfer and precisely meter the most delicate of biologics, medicines and therapeutics, all while increasing yield, throughput and speed to market.

View Our Products

Coriolis Flow Meters

View All

Ultrasonic Sensors

View All

Flow Control Valves

View All

Quattroflow Markets

Ideal solutions for critical applications

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

View Our Markets

Materials of Quattroflow® Pumps

Quattroflow Multi-Use Pumps

Quattroflow stainless-steel multiple-use pumps deliver the highest levels of purity, containment and, perhaps most importantly, cleanability in biopharmaceutical-manufacturing operations. The pump chambers are constructed of 1.4435/SS316L with a surface roughness of ≤ 0.4 μm.

Quattroflow Single-Use Biopharma Pumps

Quattroflow plastic single-use pumps incorporate a disposable wetted pump chamber constructed of solid polypropylene (PP) or injection-molded polyethylene (PE) that can be replaced as a complete unit.

Multiple-Use Pumps

MU pump type USP<87>
Cyto-toxicity
USP<88>
Cl. VI
Biological Reactivity
FDA 21CFR177 BSE/TSE safe 3.1 Material Certificates for stainless steel parts Surface Roughness Certificate for stainless steel parts
QF150S Yes Yes Yes Yes Yes Yes
QF1200S Yes Yes Yes Yes Yes Yes
QF4400S
QF5050S
QF5k
Yes Yes Yes Yes Yes Yes
QF10k Yes Yes Yes Yes Yes Yes
QF20k Yes Yes Yes Yes Yes Yes

Single-Use Pumps

SU pump type USP<87>
Cyto-toxicity
USP<88>
Cl. VI
Biological Reactivity
USP<381>
Elastomeric Closures
USP<661>
Container Plastics
FDA 21CFR177 BSE/TSE safe Extract-ables Data (post-gamma) Shelf Life (post-gamma)
QF150SU Yes Yes Yes Yes Yes Yes Yes* 3 years
QF1200SU Yes Yes Yes Yes Yes Yes Yes 3 years
QF4400SU
QF5050SU
QF5kSU
Yes Yes Yes Yes Yes Yes Yes* 3 years
QF20kSU Yes Yes Yes Yes Yes Yes Yes 3 years
QF1200SU-M Yes Yes Yes Yes Yes Yes - 3 years

*extrapolated

Product-Wetted Materials

Product-Wetted Materials Description USP <87>
Cyto-toxicity
USP<88>
Class VI
Biological Reactivity
USP<381>
Elastomeric Closures
USP<661>
Container Plastics
FDA 21CFR177 BSE/TSE safe
Santoprene™ Thermoplastic elastomer (TPE) used for diaphragms Yes Yes (121°C) Yes n/a Yes Yes
EPDM Rubber used for valves and o-rings Yes Yes (121°C) Yes n/a Yes Yes
PP Polypropylene plastic, pump chamber material Yes Yes (121°C) n/a Yes Yes Yes
PE Polyethylene plastic, pump chamber material Yes Yes (50°C) n/a Yes Yes Yes
Stainless steel 1.4435/SS316L Material of construction for pump housing, valve plate, connection ports; only for multiple-use pumps n/a n/a n/a n/a n/a n/a