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.

pressure vessel is a closed container that is supposed to be leak-proof and is often cylindrical or spherical. Its purpose is to keep fluids (such as gases or liquids) at a pressure that is significantly different (higher or lower) than the pressure of the surrounding environment.

Application

Examples of common pressure vessels used in the petroleum refining and chemical processing industries include, but are not limited to, storage tanks, boilers, and heat exchangers. Age tanks, boilers, and heat exchangers.

MOC

Titanium, nickel alloys, stainless steel, and carbon steel

Common Characteristics of Pressure Vessels

• Shape: While a pressure vessel could hypothetically be made in several different shapes, the most common shapes used are cones, spheres, and cylinders.
• Design: Regardless of the vessel’s shape, the minimum mass of a pressure vessel scales along with the volume it contains and pressure it will be put under. This mass is inversely proportional to the strength and weight ratio of the vessel’s construction material, and the minimum mass required goes down as strength goes up.
• Construction materials: Since they have to withstand extremely high pressures, pressure vessels must be incredibly strong. For this reason, the most common material used to make them is steel. Pressure vessels can also be made from composite materials, like filament wound composite, or concrete with cabling wrapped around or within the vessel to provide the tension needed to resist internal pressure.
• Corrosion resistance: If a pressure vessel will be used in a scenario that may produce corrosion, this must be taken into consideration in choosing the material.
• Pressure: Most pressure vessels are designed to operate at 15 psig* or above.