Project Description


Pressure Vessels & Tanks

Pressure vessels & tanks are containers which are designed to hold liquids, vapors, or gases at high pressures, usually above 15 psig. Examples of common Pressure vessels & tanks used in the petroleum refining and chemical processing industries include, but are not limited to, storage tanks, boilers, and heat exchangers. Each individual vessel has its own operating limits built in by design that it must work under, referred to as its design pressure and design temperature. Operating outside of these limits could damage the equipment and potentially lead to loss of containment or catastrophic failure.

Because they work under immense pressures, a ruptured pressure vessel can be incredibly dangerous, leading to poison gas leaks, fires, and even explosions. For this reason, pressure vessel safety is imperative. There are several standards and practices that cover the construction, maintenance, and inspection of pressure vessels. Chief among these standards. Generally, a pressure vessel is a storage tank or vessel that has been designed to operate. Recent inspections of Pressure vessels & tanks have shown that there are a considerable number of cracked and damaged vessels in workplaces. Cracked and damaged vessels can result in leakage or rupture failures. Potential health and safety hazards of leaking vessels include poisonings, suffocations, fires, and explosion hazards. Rupture failures can be much more catastrophic and can cause considerable damage to life and property. The safe design, installation, operation, and maintenance of pressure vessels in accordance with the appropriate codes and standards are essential to worker safety and health. Dannenbaum LLC supplies pipe valves and fittings.


A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially higher or lower than the ambient pressure that can be hazardous. A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially higher or lower than the ambient pressure. Examples include glassware, autoclaves, compressed gas cylinders, compressors (including refrigeration), vacuum chambers and custom designed laboratory vessels.

The majority of Pressure vessels & tanks are for industrial use. Some private sector uses include hot water storage tanks and diving cylinders. Industrial uses for pressure vessels include distillation towers, hydraulic reservoirs, and containment of liquefied gases. Industrially, pressure vessels can be used for high-pressure or low-pressure containment, depending on the need of the client and the materials used. They can also be used for both cooling and process heating. As well as a means of achieving secondary containment in processing materials. For use with either gases or liquids, pressure vessels can be used in tandem with electric immersion heaters. Industrial versions of these heaters achieve the heating of various substances (water, oils, gases, and solvents) through direct contact. Immersion heaters can be mounted on a pressure vessel through flanged, welded or threaded connections. The combination of electric immersion heaters and pressure vessels is ideal for heating gases and liquids, as well as for generating steam.

Most Pressure vessels & tanks, both for private and industrial uses, use various types of steel – particularly carbon steel and stainless steel. Individual steel parts are welded together to make pressure vessel cylinders or spheres. To avoid mechanical compromise through the welding process, particular precautions are taken in determining the properties of the steel that is used in the forged parts. These precautions ensure the mechanical strength of the materials, as well as the soundness of the finished pressure vessel. For example, engineering standards currently require that only steel with high impact resistance for use in fabricating pressure vessels. For some applications of pressure vessels made from steel, engineering standards also dictate the use of a special corrosion resistant material.

Pressure vessels & tanks are also fabricated using a partially load-bearing liner, made from metal, ceramic, or a polymer. This liner not only helps to bear the load of the interior pressure, but also protects the vessel from the contained substance and protects against leaking. Pressure vessels must follow strict manufacturing standards for fabrication.