| 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
A pivotal component of pressure vessels, the heads are the end closures of the cylindrical section or shell. They are commonly referred to as Dish Ends, Formed Heads, End Closures, End Caps, Vessel Ends, and Vessel Caps, with 'Dish Ends' being the most popular term.
There are four primary types of pressure vessel heads, or 'Dish Ends,' predominantly utilized in pressure vessel fabrication.
Flat heads represent the simplest form of pressure vessel heads, yet they offer limited functionality within this category. Due to their lower radial section for pressure distribution, they withstand less pressure and are, therefore, not as economical or preferred as other types.
Common terminology for Flat Heads includes Inside Diameter (ID), Knuckle Radius (R), Dish End Total Height (H), and Straight Face (SF). An example of a Flat Head's general drawing is presented above.
Renowned as the most prevalent pressure vessel heads, ellipsoidal heads offer a broader radial section for pressure distribution, enabling them to endure greater pressure levels. Their thickness is similar to the shell's, making them highly economical. The common 2:1 ellipsoidal configuration is especially favored.
Key terms for 2:1 Ellipsoidal Heads include Inside Diameter (ID), Crown Radius (C.R), Knuckle Radius (K.R), Dish End Total Height (H), and Straight Face (SF). The general drawing is shown above. Although forming these heads requires more time than Flat or Torispherical Heads, their economic advantage is substantial.
Widely utilized, these heads also have a significant radial section for pressure distribution, although slightly less economical than ellipsoidal heads. They take less time to form, thereby offering efficiency.
Under the same conditions, Torispherical Heads have a thickness nearly 1.77 times the shell's for equal design pressure and temperature.
Common terminology for Torispherical Heads includes Inside Diameter (ID), Crown Radius (C.R), Knuckle Radius (K.R), Dish End Total Height (H), and Straight Face (SF), with a general drawing shown above. Their straightforward design heightens their preference in fabrication.
They require less forming time than ellipsoidal heads, making them a favored choice for their simplicity. These are also known as Flange and Dished Heads.
These heads provide the maximum radial section available, optimizing pressure distribution. For equivalent design conditions, hemispherical heads are about half the shell's thickness for the same pressure and temperature, emphasizing their efficiency in design.
Among the various types of heads available, these stand out as the most cost-effective option. However, it is important to note that they do demand the longest forming time, making them a unique choice for specialized needs.
In the realm of Hemi Heads, several key terms are essential: Inside Diameter (ID), Crown Radius (R), Dish End Total Height (H), and Straight Face (SF). The selection of Dish Ends hinges on specific design conditions and their relevance to the applicability of pressure vessel heads, ensuring a perfect fit for your engineering requirements.
These are the four fundamental types of dish ends utilized in the fabrication of pressure vessels. Most dish end terminology is derived from standardized relationships with their inside diameter. From a fabrication perspective, it is crucial to calculate various factors. These include terms such as dish end specifications, blank diameter, weight considerations, surface area, and volume, all of which are essential for the precise and efficient fabrication of dish ends.
){kind=link}