HaysFab header imageCustom pressure vessel and pressure tank frequently asked questions.
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Hays Fabricating
& Welding, Inc.
633 E. Leffel Lane
Springfield, OH 45505
Phone: 937.325.0031

Hays Fabricating is an ISO 9001-2000 registered company.

Hays Tanks FAQ Page

Confused about tanks, codes, stamps, etc? A lot of our customers ask us the same questions so we created this page to help address your concerns. If you still have a question, please contact us. We are more than happy to assist you.

What is a "code" tank?

It is a tank or pressure vessel that has been designed, manufactured, tested, inspected and registered by an ASME shop.

Do I need a "code" tank?

Maybe. Insurance requirements, state and federal safety requirements and liability concerns generally demand them. Imagine the catastrophy if a tank or boiler exploded. However, in some circumstances, a quality-built "non-code" tank can be suitable and more cost effective.

I have never worked with tanks before. Any pointers?

Sure. Let us design the tank for you, based upon your application. Typically we need a sketch or list of requirements like size, capacity, pressure, bracket types and their locations, openings, etc. We will work with you to make the job easier.

I need a tank manufactured to SAE requirements. Can you do those?

No problem! We do them also.

How about tanks made to DOT specs?

Generally, an ASME tank meets all DOT regulations.

I have a "code" tank that needs another outlet. Can this be done?

A "code" tank can only be modified, or repaired, by a shop or contractor who has been authorized by the National Board of Boiler & Pressure Vessel Inspectors to affix the "R" stamp. Hays can do that!

Can I register an existing non-code tank?

Sorry.

My tanks need to go into Canada. Any additional requirements?

The tank will need a Canadian registration number. We can do that for you. All we need to know is the Province(s) in which they will be used.

My max. pressure is 150 psi. Should I order a 200 psi tank to be sure?

Typically we find it is a waste of money. You can be sure that a 150 psi-rated code tank is plenty safe. Just be certain that, as in any pressurized system, there is a safety release valve installed.

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