Water-for-Injection Storage Tank

Paul Mueller Company water-for-injection tanks are engineered specifically for the special needs of the pharmaceutical and biotech industry. They consist of a Type 316L stainless steel vessel and utilize sanitary clamp style connections, an aseptic manway, and a spray ball for interior sanitization. Chloride-free insulation surrounds the tank’s sides and bottom, which is covered with Type 304 stainless steel outer sheathing.

The vessel and all components are fabricated to the requirements of ASME Section VII, Division 1



  • Seismic design means strength enough to withstand earthquakes up to and including Zone 4 conditions 
  • With Paul Mueller Company’s 75 years of experience in stainless steel fabrication and finishing, quality and reliability in design and construction are assured 
  • Mueller manufactures a broad range of standard products
  • WFI tank sizes to meet your specific storage needs 
  • We offer custom sizes and dimensions for special requirements 
  • Insulated sides and bottom of vessel helps maintain WFI temperature 
  • Mueller WFI tanks are integrated with our PyroPure® stills and pure steam generators and tested as a system prior to shipment, which speeds installation by pre-assembly and shop fit-up 
  • CIP coverage and FAT testing is available. Each tank comes with a complete documentation package that speeds validation of your system 

Specifications and Sizing

Work with our innovative engineers to create a tank that is perfect for you and your facility. At Paul Mueller Company we work to meet all your needs and with our various shapes, sizes, and specifications we are confident that we will be able to make a high quality product that you will love.


Finding the right equipment that fits within your budget can be daunting. At Paul Mueller Company, we understand your needs. That’s why we offer Leasing options that give you more flexibility.

Tell us more about your needs.