PSG® Biotech Single-Use Solutions
ESI Ultrapure is proud to be the trusted supply partner for PSG Biotech, in Ireland. PSG®, a Dover Company, is a global leader in high-performance single-use pumps, flow meters, and sensors designed for critical fluid handling applications in the biotech and pharmaceutical industries. Their products can be integrated with each other and scalable from R&D to full scale GMP. With a focus on purity, safety, and product quality, PSG’s innovative technologies help manufacturers accelerate speed-to-market, reduce contamination risks, and streamline production processes.
Why Choose ESI Ultrapure for PSG Biotech Products?
As one of Ireland’s leading supplier of single-use fluid handling solutions, ESI Ultrapure offers:
- Local expertise and technical support
- Fast delivery and stock availability
- Application-specific guidance for biotech and pharma
- Certified PSG product range including Quattroflow, Quantex, Malema, and em-tec
- Seamless integration into single-use assembly systems
PSG® Single-Use Pumps
PSG Pumps have very low shear and pulsation making them the preferred pump for delicate biologics.
Quattroflow® – Quaternary (Four-Piston) Diaphragm Pumps 
Quattroflow® Single-Use Pumps feature a replaceable product-wetted plastic pump chamber, enabling fast changeovers and eliminating the need for complex sterilisation and cleaning validation. The four-piston pumping principle enables risk-free dry running, low pulsation, self-priming, and minimal particle generation. Ideal for sterile environments, these pumps deliver:
- High product purity and sterility
- Reduced cross-contamination risk
- Faster production cycles
Quantex™ – Positive Displacement Rotary Pumps
Quantex™ Single-Use Pumps offer precise micro or low-dose dispensing from 24 µL to 75 ml/s. Using the principle of positive displacement with a rotary action, this compact but powerful, high vacuum pump system dispenses high viscosities and concentrates, reduces product waste, stops drips and saves valuable equipment footprint. Designed for single-pack-use, Quantex’s versatile and hygienic pump system can:
- Eliminate cleaning
- Protect product integrity during airless dispence
- Greatly reduce maintenance
- Facilitate scalability
- Saves on costs vs other pump systems
PSG® Biotech Single-Use Flow Meters & Sensors
Malema Flow Meters 
The Malema Coriolis Flow Meter delivers highly accurate measurements of liquids, including mass flow rate, total mass, and temperature. Its advanced technology ensures consistent fluid measurement regardless of fluid properties, eliminating the need for recalibration across different fluids. Furthermore, each sensor is capable of operating in two-phase flow conditions with gas volumetric void fractions in excess of 30%
em-tec 
em-tec’s core competence is the non-invasive flow measurement using the ultrasonic transit time method. em-tec products are mainly used for critical applications in tubing systems in biopharma applications with strict hygienic requirements. Products include:
- The in-line sensor system – BioProTT FlowSU
- Clamp-on sensor systems – BioProTT Clamp-On SL, FlowMCP & FlowTrack SL
