Dished-Only Tank Heads
The simplest and most cost-effective type of tank head is the dished-only tank head design.
Dished-Only Tank Heads
A Variety of Applications
Dished-only tank heads are a simple, cost-effective solution. They have no knuckle radius or straight flange and have a spherical surface like the side of a ball. These heads are used in a variety of applications, including pressure vessels, reinforcement pads, domed roofs for large storage tanks, vacuum chambers, wear plates, and liners.
Features
Reinforcing Pad
A dished-only tank head can be used as a reinforcing pad (re-pad).
Atmospheric Storage Tanks Use
Dished-only tank heads are ideal for atmospheric storage applications where a reduction in evaporation loss is needed.
Heat Treatment
Heat treatment can be provided to meet code and process requirements and ensure long-lasting performance.
Materials
These tank heads are made from carbon steel, stainless steel, aluminum, clad, and other ferrous and non-ferrous alloys.
Specifications
Inside Dish Radius
Typically 100% of diameter
Typical Thin Out Allowance
- 1/2″ and under — Add .03125″ to the minimum
- Over 1/2″ — Add .0625″ to the minimum
- Over 1″ — Add .1250″ to the minimum
Typically offered as oversized for customer to trim, but trimming of the diameter on the vertical and radial is available upon request.
