Pharmaceutical Industry Pressure Vessels

A single carbon dust particle. That is often all it takes to ruin the sterile finish of a polished stainless steel pressure vessel—and contaminate everything inside it.

At Samuel PVG, we understand how detrimental this can be for a business in the pharmaceutical or biotech space. That is why we go to great lengths to ensure our stainless steel pressure vessels meet your critical finishing, documentation and testing needs. And it’s precisely why our Tomahawk, Wisconsin facility is exclusively dedicated to the fabrication of stainless steel pressure vessels—making cross-contamination impossible.

Samuel Pressure Vessel Group: At-a-glance

Pressure vessels
Custom and engineered-to-order vessel designs ranging from 2” to 192” in diameter (with overhead lifting capacity up to 160,000 lbs)

Key products:

  • Portable process tanks
  • Reactors
  • Evaporators
  • Fermenters
  • Nutsche filters
  • Storage tanks
  • Distillation columns
  • Liquid separators
  • Pressure pots
  • Mixing tanks

316/304 stainless, 2205, Hastelloy, Inconel, Alloy 20, Monel, AL6XN

Design codes

ISO 9001: 2015 Standard

The Samuel Difference

Our Tomahawk, Wisconsin facility is trusted by many of the world’s largest pharmaceutical and biotechnology companies. Here are just a few reasons why:

  • Extensive experience. When it comes to pressure tanks and vessels, our team has seen it all over the last four decades, and we apply that knowledge to every application. We will save you time and money by effectively anticipating your needs, providing solutions that align with your design and process expectations and keeping manufacturability top-of-mind.
  • Dedicated in-house finishing capabilities. No matter what RA finish you’re looking for, we have the finishing capabilities required to meet your preferred level—from mechanical robotic polishing, electro polishing and passivation to ASTM A380 and A967—or riboflavin and saline testing to verify cleanliness—we have you covered.
  • In-house component manufacturing. We manufacture our own components, including heads, man-ways, flanges, supports and a variety of vessel internals, as well as ladders, platforms and other ancillary components. Eliminating third parties from the process allows us to stay within your timelines and budget while ensuring our parts are of the highest quality.
  • Custom inspection test plans. We understand how important documentation is in the pharmaceutical and biotech spaces, which is why every project comes with an inspection test plan comprised of the appropriate documentation to meet your needs.


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