Pressure Vessels

Each pressure vessel that we manufacture is per the American Society of Mechanical Engineers (ASME) code. As a leading ASME pressure vessels manufacturer, our specialty lies in working with a variety of alloys, pressures, & designs to meet your custom requirements. More »

Weld Overlay and Clad Vessels

Our weld overlay and clad vessels are fully code-compliant. We use our advanced welding techniques to their full capabilities to offer you the finest overlay/clad components and pressure vessels. More »

High Pressure Vessels

We hold the American Society of Mechanical Engineers (ASME) U, U2, and U3 stamps, and have the capabilities and resources to manufacture ASME high pressure vessel to your exacting specifications. More »

Autoclaves

We hold the American Society of Mechanical Engineers (ASME) U, U2, U3, PP, & S stamps, and have the capabilities and resources to manufacture autoclaves to your exacting specifications. More »

Heat Exchangers

We specialize in the design, engineering, and fabrication of Shell and Tube Heat Exchangers, including thermal calculations. All of our units are built in strict accordance with the latest edition and addenda of the A.S.M.E. Code, Section VIII Division 1, 2, or 3 and T.E.M.A.” More »

 

How to Prevent Pressure Vessels Related Accidents

Pressure vessels, air tight containers used to carry or hold liquid, gases or process fluids, are potentially dangerous and hazardous in case they are handled carelessly.

Several accidents have occurred in the past and also in the recent times, which claimed the lives and caused serious injuries to many. There are several standards and laws implemented regarding the design, construction, welding, testing, marking, operation, inspection, and repair of pressure vessels. These laws are meant to ensure the safety of workers and the efficiency of the application operation.

What are the Criteria to Ensure a Successful Shell and Tube Heat Exchanger Design

Shell and Tube Heat Exchangers (STHE) are the most common and extensively used devices for effective heat transfer in various process industries. Relatively simple manufacturing, and compatibility with varied operating conditions add to their popularity in the market.

Considering that there is a high risk factor in their application areas, STHEs must be designed vigilantly without any design flaw. To ensure a safe operation, manufacturers design and manufacture STHEs adhering to ASME/TEMA safety standards and principles.

The Two Methods of Cladding Stainless Steel to Vessels

Pressure vessels, designed to handle gases and liquids under pressure, usually operate in strenuous environments. Most of the time, they are exposed to dust, mist, gases, harsh liquids, solvents, and several other chemicals. Long years of service in such corrosion prone industrial environments result in tarnishing or corroding the crucial components of pressure vessels. Rusting of pressure vessel components leads to catastrophic incidents that may claim the lives of workers and cause damage to property. Hence, protecting vessels from corrosion is of great significance.

Pressure Vessels – Market Served

Pressure vessels are air tight containers specially designed for dispensing, mixing, storing and transporting corrosive or highly flammable liquids and gases under pressure. Manufactured to ASME and UN specifications, these vessels are used in various industrial and commercial applications. They are constructed using the finest range of raw materials including stainless steel, carbon steel, and nickel alloys. Also, several anti-corrosive solutions like zirconium and tantalum are used to provide the equipment with comprehensive protection from the atmosphere. Superior construction using best-in-class materials makes them a reliable choice for challenging applications.

How Heat Exchangers Work in a Nuclear Reactor

Heat exchangers are used to transfer heat from one medium to another. Generally, this medium is liquid or gas. They use the process of conduction to carry out this transfer. These processes are governed by thermal equilibrium.

Understanding How Heat Exchangers Work

Why is Post Weld Heat Treatment Needed

Post Weld Heat Treatment (PWHT) is used to reduce stress in a piece of metal after it has undergone welding. Welding is an impotent process in many industries, especially manufacturing. It is useful in steel fabrication and construction of metal components. The temperatures used during the welding process are very high. This causes the metal to expand. Once the metal cools down, it shrinks. As a result, a lot of stress is locked in the metal. PWHT redistributes this stress caused by welding.

Importance of Post Weld Heat Treatment

PWHT is needed to make the metal more durable. It keeps the metal from cracking under the stress experienced during the welding operation. This process also offers the following advantages:

  1. PWHT increases the ductility and reduces the hardness of the metal.
  2. Since it reduces the hardness, the chances of stress related fractures are also minimized.
  3. The metal becomes less brittle.
  4. This process offers greater dimensional stability.
  5. PWHT reduces the risk of Hydrogen Induced Cracking (HIC).

How to Qualify for ASME Weld Certification for Pressure Vessels

Constructing pressure vessels requires an immense amount of technical knowledge and skill. Hence, it is extremely important that the fabricator possesses the relevant certifications. One such organization is American Society of Mechanical Engineers (ASME), which has been established to certify companies on quality fabrication of pressure vessels and other equipment.

4 Steps to Qualifying for an ASME Weld Certification for Pressure Vessels:

Design Considerations When Manufacturing Vacuum Chambers

Vacuum chambers or vacuum vessels are used in a variety of industries. When designing and fabricating these vessels, it is important to follow good design principles. All vacuum vessels are designed according to specific requirements. Hence, there are no fixed design parameters for the construction of the same. However, most vacuum vessels are designed with welds, flanges, seals, mounting brackets, etc. They feature access doors for ease of entry.

Design Considerations When Manufacturing Vacuum Chambers

designing vacuum chambers

Understanding the Design of Two Main Types of Pressure Vessels

Generally, pressure vessels are structures used to store liquids and gases under pressure. Pressure vessels are used because they help the stored chemical maintain its normal state. Two main shapes of pressure vessels exist, spherical and cylindrical. Let us look at their design and pressure constraints. The design of the vessel is largely dependent on the pressure inside and outside the vessel. The pressure inside the vessel is attributable to the pressure exerted by the gases and liquids. The air outside exerts some amount of pressure on the vessel. This helps in making decisions related to the thickness and type of material, the method of construction, shape of the vessel, and other factors related to construction of the vessel.

All of this together contributes to the thoughtful design of pressure vessels.

How to Fabricate a Pressure Vessel

The fabrication of a pressure vessel is a detailed and precise process. Immense care needs to be taken to ensure that the quality of the vessel is excellent, and that the fabrication meets all the requirements of the ASME Boiler and Pressure Vessel Code (BPVC) and global safety standards.

Steps to Fabricate a Pressure Vessels

To help you understand the process easier, the fabrication process has been divided into steps. Before the fabrication process is begun, a few important design steps must be performed. These are given below in brief.

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