Tools · Calculators
Torispherical head calculator: height, capacity and weight for any size
Enter the outside diameter and wall thickness – the calculator gives the heights, capacity, surface areas, blank diameter and weight of a torispherical head to DIN 28011. With a cylinder length it calculates the whole vessel made of two heads and a shell.
- Component
- torispherical head DIN 28011
- Input
- any outside diameter and wall thickness
- Result
- heights, capacity, surface areas, blank, weight
- Data
- stays in your browser
Calculate the torispherical head
This tool needs JavaScript. Without scripts we will gladly calculate it for you: service@zickwolff.de.
One torispherical head
- Straight flange h1
- Dish depth h2 (calculated)
- Inside height h3 = h1 + h2
- Overall height outside h3 + s
- Crown radius · knuckle radius
- Capacity of the dished part
- Capacity including straight flange
- Surface area outside (with straight flange)
- Surface area inside (with straight flange)
- Blank diameter (approximation)
- Weight (theoretical)
Vessel from two heads and a cylinder
- Capacity of the vessel
- Weight of the vessel (two heads and cylinder)
- Overall length outside
Guide values from the approximation equations of DIN 28011 (section 3.1) – for planning, weighing and packing, not for the design calculation. The blank diameter is an approximation: manufacturers add their own allowances. Your entries are processed in your browser only and are not transmitted.
How it is calculated
The calculator uses the approximation equations that DIN 28011 gives for torispherical heads (section 3.1): crown radius equal to the outside diameter, knuckle radius a tenth of it, plus the straight flange. Without your own straight flange it takes the default value for the wall thickness entered. Weight and blank diameter are approximations – the weight applies with 7.85 kg/dm³ for steel and 8.0 kg/dm³ for stainless steel.
For the sizes in our dimension table, dimensions, tolerances and the dimensional drawing are on the page Torispherical head DIN 28011. What distinguishes torispherical and semi-ellipsoidal heads from caps is explained under Dished heads and caps.
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