Water for Injection (WFI) is sterile water intended for injection into the body and for the manufacture of parenteral and ophthalmic products. It is the purest quality water used by the pharmaceutical and biopharmaceutical industries.
These industries require an experienced and reliable partner, like Ecolab® Ultra-Pure Water+, to ensure their supply of WFI. Our pre-validated WFI solutions are optimized to ensure they are competitive, cost-effective and meet manufacturing constraints.

Water for Injection
The Purest Pharmaceutical-Grade Water

How It Works
Supplying distillation and membrane processes
Since early 2017, European Pharmacopoeia has permitted alternative membrane-based processes alongside distillation for WFI generation.
Based on our customer's parameters, Ecolab Ultra-Pure Water+ can provide the following pre-engineered systems:
WFI by distillation. Our distillation plants produce WFI in vaporization columns using the natural circulation procedure. The water is vaporized via heat exchangers in multiple vaporization columns and rises upwards at a slow speed to ensure reliable separation of droplets. WFI results from the condensation of pure steam.
WFI by membrane processes. In addition to the production of WFI by distillation, we also offer generation of WFI by membrane processes: Our systems have one or two reverse osmosis (RO) membrane stages with downstream electrodeionization (EDI) and ultrafiltration (UF).
Equipment Information
WFI is used in the manufacture of parenteral and ophthalmic products. It is also used for final rinsing of pharmaceutical containers (e.g. primary packaging materials) and in the manufacture of these products. Ecolab Ultra-Pure Water+ provides the best systems for the production of WFI, ensuring that each solution is based on our customers’ manufacturing needs, meets Pharmacopeia regulations and comes with all the related documentation for successful inspections and audits.
Ecolab Ultra-Pure Water+'s experienced team manages the entire process, from engineering concept to commissioning and final hand over to the customer. Our WFI systems are manufactured in-house using high quality components that are available worldwide.
Ecolab Ultra-Pure Water+ ensures the following, for all our WFI systems:
- Manufactured and preassembled in our in-house Ecolab Ultra-Pure Water+ workshop
- Energy efficient and cost effective
- Constructed in pre-mounted, fully divided plant sections (softening, RO-EDI-UF and distribution)
- Tested, prequalified and ready for connection
Get In Touch with Us
Please Give Us a Call
With unparalleled expertise and cutting-edge technology, we partner with customers to deliver world-class results and optimized operations. Contact us to learn how we can help you.
Ecolab Inc.
1 Ecolab Place
St. Paul, MN 55102
Ecolab Customer Service:
Phone: +1-800-352-5326
Nalco Water Customer Service
Phone: +1-800-288-0879
Ecolab Ultra-Pure Water+
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