Safety in the use and application of our tanks is of prime importance to SEMASA. For this reason, our tank design and fabrication comply and exceed the applicable rules, codes and regulations governing their manufacture.

In the case of domestic units (for use within the boundaries of the Mexican Republic), they are designed and manufactured within the guidelines of the Official Mexican Safety Standards NOM-021/1-SCFI-1993, NOM-021/2-SFCI-1993, and NOM-021/5-SCFI-1993.

We build our tanks in accordance with the ASME Code, Section VIII, Division I, latest edition and addendum. We have been authorized to "U" Stamp, and registered with "The National Board of Boiler and Pressure Vessel Inspectors Agency".

We comply with the regulation of the United States Department of Transportation (DOT) MC-331.

We build:
* Bobtails for any capacity from 800 USG (3,000 lts.) up to 6,600 USG (25,000 lts.)
* Semi- Transport trailers from 7,900 USG (30,000 lts.) up to 14,700 USG (56,000 lts.)
* Stationary tanks from 1,300 USG (5,000 lts.) up to ((250,000 lts.)

We also build to other specifications prevalent in Latinamerica, which have not been mentioned above. Please contact us via e-mail of fax for further information as required.

We provide tank repair, mantenance and certification services through our complete certified test laboratory.

Customers always receive complete documentation on each SEMASA tank, covering its fabrication, and certification, as well as repair and maintenance procedures realized at our installation sites.

Our sales department covers a complete line of equipment and spare parts for all kinds of tanks used with LPG, anhydrous ammonia and propylene. If you cannot find the equipment, service or parts which you need in our technical bulletins or accessory catalog, please contact us directly by e-mail or fax and we will be more than happy to supply you with any additional information you require.


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Dionisio Herrera y 4a. Avenida, C. P. 111, Col. Zimex Santa Catarina, N.L. Phone/fax: (52-8) 388-14-72, 388-14-20, 388-25-95