Ultra-Pure Water System (UPW)

Ultra-pure water systems delivering semiconductor- and pharma-grade purity, up to 18.2 MΩ·cm.

Overview

For the most demanding processes, Puraxtek supplies ultra-pure water systems based on double-pass reverse osmosis, electrodeionization (EDI) and polishing mixed-bed resins. The result is water with extremely low conductivity, TOC, dissolved oxygen and particle counts — verified by inline monitoring.

Double-pass RO + EDI + polishing mixed-bed configuration
Ultra-low TOC and dissolved oxygen (degassing) options
Sanitary SS316L or high-purity PFA/PVDF wetted path
Real-time monitoring of resistivity, TOC, DO, particle and metal ions
Pharma-validation support (IQ/OQ) and documentation packages
Skid-mounted systems from 1 to 200 m³/h

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Applications

Where It’s Used

Semiconductor and wafer fabrication
Pharmaceutical PW / WFI pre-treatment
Photovoltaic cell manufacturing
Power plants and high-pressure boilers, laboratories

Specifications

Technical Specifications

Product resistivity	up to 18.2 MΩ·cm @ 25 °C
TOC	≤ 5 ppb (with UV + polishing option)
Flow rate	1 – 200 m³/h
Configuration	Double-pass RO + EDI + polishing MB / UPW loop
Monitoring	Resistivity, TOC, DO, particles, silica, metals
Piping	SS316L electropolished or PFA/PVDF

FAQ

Frequently Asked Questions

How do you reach 18.2 MΩ·cm consistently?

We combine double-pass RO with EDI and a polishing mixed bed in a recirculating UPW loop, with inline resistivity meters that trigger automatic recirculation until the target is met.

Can you support semiconductor or pharma qualification?

Yes — we provide design documentation, test reports and installation/operational qualification assistance aligned to SEMI F63 or GMP/ISPE expectations.

What affects UPW running cost?

Main cost drivers are feed-water quality, recovery, and polishing-resin life. We optimize pre-treatment and EDI sizing to keep water and energy costs low.

Ultra-Pure Water System (UPW)

Overview

Where It’s Used

Technical Specifications

Frequently Asked Questions

Related Products

Semiconductor Water Solutions

EDI & Ion Exchange Resin

RO Membrane (4-inch / 8-inch)

Ready to solve your water challenge?