We are the connoisseurs in pressure vessel design. NSI’s custom pressure vessel design services are perfect for engineers, scientists or procurement specialists who desire a custom pressure vessel. We take pride in drafting pressure vessel design services for all applications and in accordance with all major design codes and directives. Our pressure vessels are used in various applications, including particle accelerators, cryogenic apparatus, natural gas process skids, and several types of scientific research vessels.

NSI owns the ability to create a wide variety of pressure vessels such as reactor vessels, autoclaves, separators, evaporators, and so on. Our firm produces, assembles, builds, tests inspects and delivers ASME code pressure vessels and tanks to clienteles throughout Canada. Over the ages, we have developed a long and loyal clientele list ranging from small independent entrepreneurs to big multinational companies, providing services for various industries such as pharmaceutical, nuclear, offshore, hygienic, chemical, oil and gas, food and beverage.



Our firm specializes in ASME code pressure vessel engineering and design services. We also design and engineer components and fittings for pressure vessels. Since we are careful to follow the A.S.M.E. code, the designing and fabrication of our pressure vessel services operate safely. We keep our equipment and techniques are continually updated to keep pace with progressive technologies.

As a leading chief designer of pressure vessels and other services, we have developed many procedures for welding numerous types of chromes, steels, and exotic alloys. The certification and stamps that we hold by A.S.M.E, make us exceptionally qualified and competent to initiate, project, design and fabricate large high-pressure vessels that operate safely as intended.



We widely examine your designs or create our designs for you based on your process requirements. We offer pressure vessel services based on advanced design methods, including stress and fatigue analysis reports if required. Each pressure vessel we manufacture as per the American Society of Mechanical Engineers (ASME) code. As a leading ASME pressure vessels design manufacturers, our prowess lies in working with various alloys, pressures, & designs to meet your custom requirements.

We employ qualified engineering professionals who can take any complex or simple design, even a basic drawing, and turn it into a custom manufacturing plan. Our in-house drafting, engineering, machining, fabrication, radiography, and heat treatment services allow us to control each pressure vessel’s standard and delivery.