Pressure vessels, prefabricated piping, reactors, heat exchangers, columns and process modules. - To be the most trusted partner and best supplier of Customers.

Turbine auxiliary equipment & structures including steel components for steam and gas turbines, intake & exhaust system for gas turbines, WHRU, etc. - Excellent sustainable EHS performance.

As a Tier-One supplier to several multi-national Corporation and Engineering Company, we are committed to continuous improvement of quality and deep understanding of different standards. - Quality is our Reason for Existence.

Tongxiang, Zhejiang, China - From October 15th to October 16th, 2018, Zhejiang NAMAG Equipment Manufacturing Co., Ltd. successfully passed the ASME Boiler & Pressure Vessel U stamp and Pressure Piping PP stamp renewal audit and passed the new certification for ASME Boiler & Pressure Vessel U2 stamp and ASME Boiler & Pressure Vessel S stamp. At the same time, Namag will receive the NB symbol stamp certificate and R symbol stamp certificate issued by the US National Board of Boiler and Pressure Vessel Inspectors.


The ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code issued by the American Society of Mechanical Engineers, as an internationally recognized authority, is widely recognized worldwide as the international standard for the boiler & pressure vessel design, manufacturing, test and inspection. The ASME Boiler and Pressure Vessel Code applies to boiler and pressure vessel manufacturing and installation companies in the petroleum, chemical and power industries.


Since 1998, Namag has obtained the U stamp and authorization certificate for ASME products. Namag has designed and manufactured a large number of pressure vessels, heat exchangers, towers, etc., and the products are exported to all over the world. Namag has accumulated rich experience in the design and manufacture of ASME products, and has established good relations with engineering companies, customers and owners at home and abroad.


As a wholly foreign-owned enterprise invested by Whiting Equipment Canada, Inc. in China, Namag provides world-class quality pressure vessels, prefabricated piping, reactors, heat exchangers, tower vessel & columns, turbine auxiliary equipment (inlet & exhaust system), steel structures and process modules/skids from China to help customers meet construction schedule and cost control. We are committed to providing superior products and technical services to our global customers.





NAMAG is a Wholly Foreign-Owned Enterprise [WFOE] and solely owned subsidiary of Whiting Equipment Canada, Inc.; affiliated with Whiting Corporation and sister company Swenson Technology, Inc., who for over 130 years enjoy an excellent world-wide reputation.


NAMAG helps Customers to meet construction schedules and control costs through the supply of world-class quality pressure vessels, prefabricated piping, heat exchangers, columns, turbine auxiliary equipment, structures and process modules from China. We are committed to global customers to provide excellent products and technical services.


To learn more about NAMAG, please feel free to contact us and visit


Phone: +86-573-8895 5108 / +86-573- 88023680

Fax: +86-573-88021306




News Release

Created on:2018-10-18 09:25

NAMAG passed the ASME U & PP stamp renewal audit and the new certification for ASME U2 & S stamp

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