| Customization: | Available |
|---|---|
| Certification: | CE, ISO |
| Color: | Customized |
|
Still deciding? Get samples of US$ 30/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
The pressure vessels heads serve as vital components of a pressure vessel, acting as closure elements for the cylindrical sections or shells. These heads are often referred to by various names such as Dish Ends, Formed Heads, End Closure, End Caps, Vessel Ends, and Vessel Caps, with the term 'Dish ends' being the most commonly used.
The fabrication of pressure vessels prominently features four foundational types of pressure vessels heads, commonly known as Dish ends.
Flat heads are the most straightforward form of pressure vessels heads. However, their application in this context is limited due to a lower capacity for withstanding pressure, attributed to a reduced radial section available for pressure dispersion. This results in increased stress on the flat section, making it a less economical choice compared to other head types.
Key terms associated with Flat Heads include Flat Head Inside Diameter (ID), Knuckle Radius (R), Dish End Total Height (H), and Straight Face (SF). An illustrative representation of Flat Heads is available in the accompanying drawing.
Esteemed as the most prevalent type of pressure vessel head, ellipsoidal heads offer a broader radial section for effective pressure distribution. Their design allows them to withstand maximum pressure, making them the preferred choice. Interestingly, the thickness of ellipsoidal heads is approximately equal to the shell thickness under similar design conditions, rendering them the most economically viable option. The 2:1 Ellipsoidal Section is the most commonly used configuration.
Common terminology for 2:1 Ellipsoidal Heads includes Inside Diameter (ID), Crown Radius (C.R), Knuckle Radius (K.R), Dish End Total Height (H), and Straight Face (SF). A general drawing representation is available for reference. It is noteworthy that forming ellipsoidal heads requires more time compared to Flat and Torispherical Heads, yet they remain the most economical choice for pressure vessels.
These heads are also among the most commonly used, offering substantial radial sections for pressure distribution. While they can withstand significant pressure, they are slightly less economical than ellipsoidal heads. However, the reduced time required for their formation makes them a popular choice.
Under identical design conditions, the thickness of Torispherical Heads is approximately 1.77 times the shell thickness, designed for the same pressure and temperature parameters.
Essential terms associated with Torispherical Heads include Inside Diameter (ID), Crown Radius (C.R), Knuckle Radius (K.R), Dish End Total Height (H), and Straight Face (SF). A general drawing provides additional insights into these heads.
Characterized by a simpler design, these heads take less time to form than ellipsoidal heads, making them a preferred choice for many. Known also as Flange and Dished Heads, they are noted for their efficiency.
In pressure vessel fabrication, Hemispherical Heads provide the maximum radial section, allowing for optimal pressure distribution. Under equivalent design conditions, the thickness of these heads is roughly half that of the shell thickness, ensuring efficiency in both pressure and temperature resilience.
While offering superior economy compared to other head types, the formation of Hemispherical Heads demands the most time.
The world of Hemi Heads is elegantly defined by key parameters such as Inside Diameter (ID), Crown Radius (R), Dish End Total Height (H), and Straight Face (SF). Your choice of Dish Ends should be driven by the design conditions and their specific suitability for pressure vessel applications.
Within the realm of pressure vessels fabrication, there exist four fundamental types of Dish Ends. Standard relationships based on their inside diameter are employed to calculate most of the relevant terms. From a fabrication perspective, one must meticulously compute a variety of factors including Dish End Terms, Blank Diameter, Weight, Surface Area, and Volume. These computations are essential for the precise manufacturing of Dish Ends.
){kind=link}