| 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
Pressure Vessel Heads are crucial components of pressure vessels, serving as closures for the cylindrical sections or shells. They are known by various names, such as Dish Ends, Formed Heads, End Closures, End Caps, Vessel Ends, and Vessel Caps, with Dish Ends being the most commonly used term.
Among the fabrication of pressure vessels, four primary types of pressure vessel heads, commonly known as Dish Ends, are extensively utilized.
Flat Heads represent the simplest form of pressure vessel heads but are less favored due to their limited pressure capacity. The design allows minimal radial section for pressure distribution, leading to non-economical application as the flat section bears maximum exposure.
Key terms for Flat Heads include Inside Diameter (ID), Knuckle Radius (R), Dish End Total Height (H), and Straight Face (SF). The general drawing representation is depicted above.
Ellipsoidal Heads are the most extensively used type of Pressure Vessel Heads, offering a broad radial section for optimal pressure distribution. They excel in pressure endurance compared to other heads, making them highly preferred and economically viable, with dish end thickness nearly equivalent to shell thickness. The 2:1 Ellipsoidal Section is the standard configuration.
Common 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). Though forming takes longer than Flat and Torispherical Heads, they remain the most economical choice due to their design.
Widely utilized, Torispherical Heads offer a substantial radial section for pressure distribution, slightly less than Ellipsoidal Heads, making them less economical but favored for their quicker forming process.
For the same design conditions, the thickness of Torispherical Heads is approximately 1.77 times that of the shell for equivalent design pressure and temperature.
Key terms for Torispherical 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 representation is illustrated above.
This head type, also known as Flange and Dished Heads, is valued for its simplicity and reduced forming time compared to Ellipsoidal Heads.
Hemispherical Heads are integral to pressure vessel fabrication, boasting the maximum radial section for pressure distribution. With a design thickness nearly half that of the shell for equivalent pressure and temperature, they offer an economical advantage.
Despite being the most economical choice, Hemispherical Heads demand the most time for formation.
In the fascinating world of Hemi Heads, several key terms are vital: Inside Diameter (ID), Crown Radius (R), Dish End Total Height (H), and Straight Face (SF). The selection of Dish Ends is intricately linked to design conditions and their relevance to pressure vessels' heads.
These are the four foundational types of dish ends utilized in the fabrication of pressure vessels. Most of the terms related to dish ends are calculated using standard relationships with their inside diameter. From a fabrication standpoint, numerous calculations are crucial. These calculations include dish end terms, blank diameter, weight, surface area, and volume, all essential in the production of dish ends.
){kind=link}