Engineering - It's Built In!

Large-diameter, high-pressure, heavy, challenging metallurgy, and/or high-spec heat exchangers – this is our bread and butter. To chew through this type of work you need serious engineering and technical horsepower, which is why Altex has Professional Engineers and Technologists throughout our organization!  

Our Professional Engineers are registered in the provinces of Alberta, British Columbia, Saskatchewan, and Ontario.

In-House Engineering:

Breakdown across departments:

The latest codes and specifications - Code and Specs:

Design Software:

Canadian CRN Registrations for New Designs, Alterations and Repairs.

Engineering FAQ's

U-bends thinning calculations for all rows.

The greatest thinning will occur in the row with the smallest bend radius. Calculations are not needed for the remaining rows.

Baffles design thicknesses per ASME code?

The baffles are not designed according to the ASME standard. They are not pressure parts. Their thickness is specified in the TEMA.

What is a Fiver Plate?

A Fiver plate is a partial baffle that covers the outer 5 rows of the tube field. This can be used at the shell inlet and outlet to reduce tube vibration.

Why is the tube wall reduction only 1-3% in our tube-to-tube sheet configuration with a strength weld?

Per UW-20 in ASME VIII Div. 1, a strength weld is equal to or larger than the axial strength of the tube. A light roll of 1-3% is sufficient with a full-strength weld.

What is the difference between a nut stop and nut relief HB Forging?

A nut stop forging has a thicker neck under the flange than a nut relief so that the nut flats sit flush on the nozzle neck, not allowing it to rotate. This eliminates the need for a wrench on the under side of the flange during bolt up. A nut relief style has a thinner neck and requires a wrench to hold the nut when torquing to attached piping.


Have a question, we have an answer!