ISO 9001 Certified130,000 ASME Pressure Vessels Shipped Worldwide

The World’s Largest Manufacturer of ASME-Code, Duplex Stainless Steel Water Heaters.

PVI specializes in medium to large capacity ASME water heaters for commercial and institutional buildings; including schools, hotels, hospitals, dormitories, apartments, correctional facilities and military barracks. Many of our products are “engineered-to-order” to exactly match the requirements of the application. We can also supply customized heaters for process water heating.


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PVI wins the 2014 Texas Environmental Excellence Award for pollution prevention.

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