ASME is a registered trademark of The American Society of Mechanical Engineers
The codes and standards for high pressure vessels set by ASME consist of three different divisions, which are based on psi level. Read More…

Leading Manufacturers
Midwest Imperial Steel Fabricators, LLC
Oak Lawn, IL | 800-282-1574If you are looking for innovative pressure vessels, you’ve come to the right place! We actively manage your project every step of the way. We keep you informed of what we are doing to ensure we keep up to your standards and delivery times.

Gladwin Tank Mfg., Inc.
Gladwin, MI | 989-426-4768Gladwin Tank Manufacturing specializes in custom designed and built ASME tanks and ASME jacketed weldments of any shape or size made from carbon steel, stainless, duplex and nickel alloys.

Rexarc International
West Alexandria, OH | 877-739-2721Rexarc is the global leader in acetylene gas plant production, and is trusted in over 50 countries around the world with the generation, purification, and compression of the highly volatile gas. We have the knowledge, attitude, equipment, and processes to support your needs in the vessel production. We also offer value added services of piping, instrumentation, paint, and other controls integration.

Hamilton Tanks
Columbus, OH | 800-627-8265At Hamilton Tanks, we take great pride in custom pressure vessel design and fabrication. We specialize in STI & custom fabrication of steel storage tanks and tank systems from 150 to 50,000 gallons. Our years of experience and high standards of quality and service provide the expertise needed to accommodate all your custom pressure vessel fabrication needs. Contact us today to learn more!

Caid Industries, Inc.
Tucson, AZ | 520-294-3126CAID builds pressure vessels, tanks, hoppers and ducting for a variety of worldwide industries and applications. They can be designed and fabricated to ASME section VIII Div 1 specifications. Quality is foremost in all our business activity and over the years our customers have come to rely upon that quality for their most demanding projects.

Stainless Tank, Inc.
Chattanooga, TN | 423-629-6901At Stainless Tank, Inc., we build pressure vessels, storage tanks, reactors, tray columns, towers, scrubbers, cyclones, hoppers, coils, and custom designs. Our tanks are designed to handle pressures from full vacuum to 1000 psi. Seismic, snow and wind loads, heat transfer, and agitation can also be applied. Give us the opportunity to provide the perfect solution for your business.

ASME is not the only standard-setting authority for pressure vessels, but it is by far the most widely known and accepted, ensuring an expected level of consistency throughout pressure vessel manufacturing. Pressure vessels or pressure tanks hold fluids, gases and vapors at pressure levels greater than that of atmospheric pressure. Therefore, great care must be taken in manufacturing pressure vessels, or a leak, crack or flaw could result in flying shrapnel, fires or a large explosion.
The ASME's standards are required by law in almost every state and are recognized world wide. Many different industries adhere to ASME standards when designing, building and using pressure vessels, including the chemical manufacturing, medical product manufacturing, heating, agricultural, brewery, liquid filtration, vacuum pump systems and polystyrene manufacturing. Each of these pressure vessel aspects must meet the ASME regulation or standard.
The ASME standards affect every part of pressure vessel design and fabrication. They control the quality of design, drafting standards, design calculations, material control, fabrication tolerances, machining, testing, inspection, calibration and records retention. After a pressure vessel has been manufactured and is ready to use, a certain amount of responsibility falls in the hands of the company running the vessel. They must periodically check for damage and repairs, including leaks, cracks and ruptured seams.
If any damage is noticed, only a qualified welder may carry out the repairs and it should be done immediately as there could be disastrous results as a result of built-up pressure. Extensive information about the pressure vessel, including its psi, must be displayed on the vessel's exterior in plain site at all times. Installation of a new pressure vessel must also be approved by the ASME.
During the tank examination, inspectors check things like the O-ring seal strength, vacuum closure standards and make sure it is operating at the appropriate psi. Often, the detailed and thorough inspection of a pressure vessel requires dismantling the entire tank. The quality of an ASME tank affects everyone who comes into contact with it, whether they design, manufacture, install, inspect, maintain or work with pressure vessels on a daily basis, therefore it is important that standards are maintained.