Dish-Ends / End Caps

• Pressure Vessel Heads
  • Ellipsoidal Head, Hemispherical Head and Torispherical Head are three sorts of ASME Pressure Vessel Dished Heads.
• Heatmax manufactures the following dish heads:
  • Hemispherical heads are suited to handling high-pressure fluids and enclosing substantial-diameter vessels due to the pressure being distributed equally across the head’s surface. A sphere is the perfect shape for a head, because the pressure in the vessel is divided equally across the surface of the head . They have simple geometry and better inside volume, but they’re difficult to fabricate and join to the shell. The depth of the top is half the diameter.

Torispherical heads are suitable for handling pressures low pressure. They are the simplest and cheapest to fabricate among the heads. They are used for pressure vessels with height restrictions due to their flatter profile. The transition of the cylinder and therefore the dish is named the knuckle that’s in toroidal shape. The knuckle radius is adequate to the radius of the torus, and therefore the crown radius is adequate to the radius of the sphere.

Ellipsoidal heads have a depth that is a fraction of the width of the head. Its radius varies between the main and axis . This is also called a 2:1 elliptical head. The ellipsoidal head and its shell have an equivalent wall thickness. This type of head is right for holding high-pressure gases thanks to its height-to-weight ratio. It can handle pressures greater than 15 bars. . The shape of this head is cheaper, because the height of the head is just a one-fourth of the diameter. Ellipsoidal heads are resistant to pressure and have high overall strength, which makes them economical due to their reduced thickness requirement.