Engineering Corrosion-Free Flow Solutions Since 1988

Dear Industry Partner,

The people who keep plants running through the toughest conditions. The engineers solve complex challenges before they become costly problems. The maintenance teams ensure that every shift runs safely. The OEMs and EPC contractors transform ambitious ideas into world-class facilities. 

For over 30+ years, it has been our privilege to stand beside you. 

At UNP Polyvalves, we have always believed that every industrial process deserves engineering solutions that inspire confidence, not concern. That belief has guided our journey from a modest manufacturing facility to becoming a globally trusted manufacturer of solid plastic and lined valves, piping systems, and flow control solutions, serving industries across 45+ countries. 

Our greatest achievements have never been built within the four walls of our factory. 

They have been built through every conversation on the plant floor, every project undertaken with our customers, every challenge shared by operators, process engineers, OEMs, consultants, and EPC contractors. These experiences have shaped our thinking, strengthened our engineering, and inspired us to keep raising the benchmark with every solution we create. 

Over the years, we have learned an important lesson. 

Great engineering begins with great people. 

The people who design. The people who manufacture. The people who inspect every detail before a product reaches your facility. Many of our colleagues have grown alongside UNP for years, carrying forward a culture of craftsmanship, accountability, and continuous learning. Their dedication is reflected in every valve, every fitting, and every piping system that bears our name. 

After all, products may be manufactured by machines. 

Trust is built by people. 

Today, UNP offers one of the industry’s most comprehensive portfolios of solid plastic and lined flow control solutions, including Ball Valves, Plug Valves, Butterfly Valves, Diaphragm Valves, Ball Check Valves, Swing Check Valves, Sampling Valves, Double Window and Full View Sight Glasses, Y & T Type Strainers, Lined Pipes, and Fittings ranging from ½” to 24″. 

Our solutions continue to perform across chlor-alkali plants, chemical processing industries, steel and pickling facilities, acid regeneration plants, mining operations, and oil & gas applications, where reliability is not merely expected but essential. 

We’ve often joked that our valves are most comfortable where corrosion is least welcome. 

Thankfully, they have lived up to that reputation. 

The confidence our customers place in us has also earned the approval of globally respected consultants and EPC organizations, including ThyssenKrupp, Worley, Mott MacDonald, TOYO Engineering, FLUOR, and EIL. Supported by internationally recognized certifications including ISO 9001:2015, PED, FE (ISO 15848-1), EN 14432, ATEX, and SIL 3 Compliance, we continue to engineer solutions that meet the highest standards of quality, safety, and performance. 

Yet, despite everything we’ve accomplished over 30+ years, we believe our most important work still lies ahead. 

Industries are evolving. Processes are becoming smarter. Expectations continue to rise. 

And that excites us. 

To every customer, partner, employee, distributor, consultant, and engineer who has been part of our journey, thank you for your trust. 

Your confidence has shaped who we are. 

Your trust drives our engineering. Our engineering drives your progress. 

Warm regards, 

The UNP Polyvalves Team