| 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 represent a pivotal component in pressure vessels, sealing off the ends of the cylindrical section or shell. Known by a variety of names such as Dish Ends, Formed Heads, End Closure, End Caps, Vessel Ends, and Vessel Caps, the term 'Dish ends' remains the most prevalent.
There are four primary types of pressure vessel heads, commonly referred to as Dish ends, extensively utilized in the construction of Pressure Vessels.
Flat heads are the simplest form of pressure vessel heads but offer limited utility due to a lesser ability to withstand pressure. Their design, which includes a lower radial section for pressure distribution, results in maximum stress on the flat section, diminishing their economic viability.
In Flat Head terminology, frequent terms include Flat Head Inside Diameter (ID), Knuckle Radius (R), Dish End Total Height (H), and Straight Face (SF). The general drawing representation for flat heads is depicted above.
These heads are the most popular choice for pressure vessels due to their extensive radial section, ensuring optimal pressure distribution and enhanced pressure endurance. Given identical design conditions, the dish end thickness of ellipsoidal heads roughly equates to shell thickness, marking them as the most economical choice. The standard configuration is typically the 2:1 Ellipsoidal Section.
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). A general drawing of 2:1 Ellipsoidal Heads is illustrated above. Although they require more forming time than Flat and Torispherical Heads, they remain the most cost-effective option.
These commonly used heads feature a substantial radial section for pressure distribution, enabling them to withstand significant pressure, albeit slightly less than ellipsoidal heads. Despite being less economical, they are favored for their reduced forming time compared to ellipsoidal heads.
Under similar design conditions, the thickness of Torispherical Heads is nearly 1.77 times that of the shell thickness for equivalent pressure and temperature.
Terms frequently used with 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 for these heads is provided above.
Due to their easier forming process compared to ellipsoidal heads, Torispherical Heads are preferred for their simplicity. They are also known as Flange and Dished Heads.
Utilized in the fabrication of pressure vessels, hemispherical heads offer the maximum radial section available among all head types. This results in superior pressure distribution. For identical design conditions, the thickness of hemi heads is approximately half that of the shell thickness for equal pressure and temperature.
Despite being the most economical among all head types, hemispherical heads require the most time to form.
In the fascinating world of Hemi Heads, the key terminologies you need to know include the Inside Diameter (ID), Crown Radius (R), Total Height of the Dish End (H), and the Straight Face (SF). Your choice of Dish Ends hinges on the design conditions and their suitability for Pressure Vessel Heads, ensuring optimal performance and reliability.
These are the four fundamental types of Dish Ends utilized in the fabrication of Pressure Vessels. Calculating these Dish End terms relies on standard relationships with their inside diameter. From a fabrication perspective, it's crucial to compute various parameters, including Dish End Terms, Blank Diameter, Weight, Surface Area, and Volume Calculations—essential elements in crafting these vital components.
){kind=link}