ASME Pressure vessels are built to meet the latest standards of the American Society of Mechanical Engineers Code requirements. Each vessel is verified by our engineers to ensure compliance with all code requirements.


Engineering Capabilities

Our engineers have a combined 40+ years of experience designing ASME pressure vessels and powered cryogenic vaporizers. Combining our knowledge with the latest technology we are able to handle engineering of any project. This includes the most challenging jobs with detailed and expansive requirements, as that is our specialty.

West Warwick Welding uses the following software

  • Codeware’s Compress & Shopfloor
  • Dassault Systems Solidworks & Solidworks Simulation
  • Autocad LT
  • Design Flow Solutions
  • Custom Sizing Tools for various Tanks
Our engineering department and shop are able to design and fabricate any vessel to ASME, PED or CML.

(ASME) Certification

ASME, founded as the American Society of Mechanical Engineers, is a professional association that, in its own words, “promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe” via “continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach.”ASME is thus an engineering society, a standards organization, a research and development organization, a lobbying organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global.

ASME has over 130,000 members in 158 countries worldwide.

ASME was founded in 1880 by Alexander Lyman Holley, Henry Rossiter Worthington, John Edison Sweet and Matthias N. Forney in response to numerous steam boiler pressure vessel failures. Known for setting codes and standards for mechanical devices, ASME conducts one of the world’s largest technical publishing operations, holds numerous technical conferences and hundreds of professional development courses each year, and sponsors numerous outreach and educational programs.


(PED​) Certification

The Pressure Equipment Directive 97/23/EC (PED) of the EU sets out the standards for the design and fabrication of pressure equipment (“pressure equipment” means steam boilers, pressure vessels, piping, safety valves and other components and assemblies subject to pressure loading) generally over one litre in volume and having a maximum pressure more than 0.5 bar gauge. It also sets the administrative procedures requirements for the “conformity assessment” of pressure equipment, for the free placing on the European market without local legislative barriers. It has been mandatory throughout the EU since 30 May 2002. This is enacted in the UK as the Pressure Equipment Regulations (PER). The set out standards and regulations regarding pressure vesselsand boilers safety is also very close to the US standards defined by the American Society of Mechanical Engineers (ASME). This enables most international inspection agencies to provide both verification and certification services to assess compliance to the different pressure equipment directives.



(CML) Chinese Manufacture License

China Manufacture License (CML/TS License/SELO certificate) refers to the practitioners licensing and authority of using the TS marking for the special equipment.

The companies who engage the manufacture (include: construction, making, installation, alteration, maintenance, etc.), use and inspection of the special equipment must be inspected and approved by General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (AQSIQ), then can obtain the license and producing or selling the applied equipment in China. As the Executive organization, the Special Equipment Licensing Office of General Administration of Quality Supervision, Inspection and Quarantine (SELO) was established on July 16, 2003 with the approval of AQSIQ.

Special equipment means: boilers, pressure vessels


Power Piping

Coming Soon


Cryogenic Applications

In physics, cryogenics is the study of the production and behaviour of materials at very low temperatures (below −150 °C, −238 °F or 123 K). A person who studies elements that have been subjected to extremely cold temperatures is called a cryogenicist. Rather than the relative temperature scales of Celsius and Fahrenheit, cryogenicists use the absolute temperature scales. These are Kelvin (SI units) or Rankine scale (Imperial units). The term cryogenics is often mistakenly used in fiction and popular culture to refer to the very different cryonics.


Heat Exchangers

A heat exchanger is a device used to transfer heat between two or more fluids. Heat exchangers are used in both cooling and heating processes.[1]The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact.


Dearator Tanks

deaerator is a device that is widely used for the removal of oxygen and other dissolved gases from the feedwater to steam-generating boilers. In particular, dissolved oxygen in boiler feedwaters will cause serious corrosion damage in steam systems by attaching to the walls of metal piping and other metallic equipment and forming oxides (rust). Dissolved carbon dioxide combines with water to form carbonic acid that causes further corrosion. Most deaerators are designed to remove oxygen down to levels of 7 ppb by weight (0.005 cm³/L) or less as well as essentially eliminating carbon dioxide. There are two basic types of deaerators, the tray-type and the spray-type:
  • The tray-type (also called the cascade-type) includes a vertical domed deaeration section mounted on top of a horizontal cylindrical vessel which serves as the deaerated boiler feedwater storage tank.
  • The spray-type consists only of a horizontal (or vertical) cylindrical vessel which serves as both the deaeration section and the boiler feedwater storage tank.

Filter Tanks

Coming Soon


Production NDE/NDT

Non-destructive testing (NDT) is a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. The terms non-destructive examination (NDE), non-destructive inspection (NDI), and non-destructive evaluation (NDE) are also commonly used to describe this technology. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research.


Pressure Vessel & Tanks

pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.

Pressure vessel design, manufacture, and operation are regulated by engineering authorities backed by legislation. For these reasons, the definition of a pressure vessel varies from country to country, but involves parameters such as maximum safe operating pressure and temperature.