Stainless Steel Dished Ends manufacturer in India

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Carbon Steel Pressure Vessel Dished Ends and DIN 28011 Torispherical Heads exporter in Mumbai

What is Dished End?
The Dished End can be defined as an end cap which is welded to the pressure vessel’s body. They are manufactured using a wide range of production methods that depend on the type of Dished End that is needed. The type will also help in understanding the specific characteristics of the end product. The cap in this case, looks like a flat disc, and it is made of different material grades that is suitable for the required applications. The most common material used for making Dished End would include carbon steel and stainless steel. However, depending on specific requirements, exclusive materials like aluminum can also be used.
The Dished Ends are primarily used in high pressure vessels and boilers. They are available in different shapes and sizes, and their dimensions can be customized according to the specific requirements. Just like the end caps, they are also used for closing the piping connection. The installation procedure of the Dished End can be through threaded, socket welding or butt welding joints. Depending on the type of material used, the Dished End can be used in different types of environment. For example, the alloy steel dished ends possess hardness, ductility, and they are capable of resisting corrosion. That is why they can be used in various corrosive environments. For more sensitive or expensive applications, material grades with better mechanical properties can be used.

Stainless Steel Torispherical Head Dished End Vs Grade 516Gr70 Dish End
The Stainless steel Torispherical Head Dished End is the most abundantly used heads that come with more radial sections for pressure distribution. They are capable of withstanding high pressures but that is lower than the ellipsoidal head dished end. They can be used in corrosive, high temperature environments, without much maintenance.
The Grade 516 Gr70 Dished Ends are end caps welded on the body of the pressure vessels. It is made of medium carbon alloy material and has improved toughness.This material grade is primarily used for welded pressure vessels.

How Carbon Steel Dish Ends are made?
The Carbon Steel Dish Ends are made by dishing the plates with the right crowning radius. The dished head is completed with the help of a flanging machine by forming the edge. The process is done by CNC if there is a requirement for a series production. The dishing process involves cutting the plate into circular shape of the given size, and then forming the dish under a press. Multiple hits are distributed throughout the surface that helps in crowning the plate.

Hemipherical Heads Dished End Vs Ellipsoidal Heads Dished End
The Hemispherical Heads Dished End is popularly chosen for applications in a pressure vessel, because they have that ideal shape. It helps in dividing the pressure in the vessel across the head of the surface. It is also known as the hemispherical tank head, and commonly used in gas or liquid storage tanks.
The Ellipsoidal Heads Dished End is also known as an elliptical head dished end, and it has a very economical shape. This is because the height of this head is a fraction of the diameter. It’s radius can vary between the two axes, major and minor, usually in 2:1 ratio. The Ellipsoidal Heads Dished End is very versatile and commonly used as a cover plate or for the bottom of the vessel. It offers better pressure resistance.

Stainless Steel Dished Ends manufacturer in India

Stainless Steel Dished Ends manufacturer in India

Manufacturer of Alloy Steel Tank Dished Ends and MS Purdies Dished Head offers Eddy Current Testing / Radiography

Table of Content


Specifications End Cap
sizes Seamless End Caps: 1/2″ - 10″
Welded End Cap: 1/2″ - 48″
Dimensions ASME B16.9, BS4504, BS1560, MSS-SP-43, BS4504, BS10
Types ERW / Seamless / Welded / Fabricated
Size Range DN15-DN1200
Thickness SCH 160, SCH 140, XS, CH30, STD SCH40, SCH10, SCH20, SSCH120, SCH80, XXS, SCH60, SCH 100 available with NACE MR 01-75
Bending Radius R=6D, 10D, 5D, 2D, 8D, 1D, 3D or Custom Pipe Fittings
Connection Welding
Size Range Manufacturer of DIN 28011 Torispherical Heads in ½” NB to 24″ NB in Sch 10s, 80s, 40s, 160s, XXS. (DN6~DN100)

Leading Carbon Steel Pressure Vessel Dished Ends stockholders, dealers, wholesalers, importer, stockists, distributor, supplier, exporters and Manufacturer in Mumbai.

NPS STD XS SCH 160 XXS
1 0.09 0.14 0.18 0.23
1.1/4 0.14 0.18 0.23 0.34
1.1/2 0.18 0.23 0.27 0.41
2 0.27 0.34 0.57 0.68
2.1/2 0.41 0.45 0.79 1.13
3 0.68 0.79 1.32 1.81
3.1/2 0.91 1.13 - 2.72
4 1.13 1.36 2.68 3.4
5 2.04 2.49 4.54 5.44
6 2.95 4.08 6.8 8.16
8 5.44 7.26 14.06 13.61
10 9.07 11.34 25.85 -
12 13.61 16.33 43.09 -
14 16.33 20.41 - -
16 18.14 24.49 - -
18 24.49 32.66 - -
20 34.02 39.01 - -
22 42.64 56.7 - -
24 43.54 58.97 - -
26 53.98 72.12 - -
30 78.02 103.87 - -
NPS STD XS SCH 160 XXS

Long service life & cost effective DIN 28013 hemispherical, Semi Ellipsoidal, and torispherical head manufacturer in India

Material thicknesses range from 5 to 60 mm in the cold and up to 80 mm in the hot, with diameters ranging from less than 1 metre to more than 8 m.

Stainless Steel Dished Ends Price Per Piece in India Stainless Steel Pressure Vessel Dished Ends Price in INR DIN 28011 Torispherical Heads Price in UAE Dirham Stainless Steel Dished Ends Price in USD
STAINLESS STEEL DISH END Per Kg 265 UAE Dirham 13.10 $3.57
TORISPHERICAL HEADS (DISH END) FOR HSM 600, 850 MM X 3 MM, Stainless Steel Per Piece 62,694 UAE Dirham 3099.57 $843.89
SOLAR WATER HEATER Stainless Steel DISH END COVER FPR OUTER TANK (DIA 480 M.M THICKNESS) Per Kg 119 UAE Dirham 5.88 $1.60

Refer our price with other Stainless Steel Dished Ends manufacturer in India Before Buying. This is an approximate Price of DIN 28011 Torispherical Heads in India. Feel free to contact us latest Stocklist of Alloy Steel Tank Dished Ends in Mumbai.

Stainless Steel Dished Ends

Stainless Steel Dished Ends

DIN 28011 Torispherical Heads

DIN 28011 Torispherical Heads

Tank Dished Ends

Tank Dished Ends

Purdies Dished Ends

Purdies Dished Ends

Pressure Vessel Dished Ends

Pressure Vessel Dished Ends

Stainless Steel 321 Ellipsoidal Dish End

Stainless Steel 321 Ellipsoidal Dish End

Grade 516 Gr70 hemispherical dish end

Grade 516 Gr70 hemispherical dish end

Carbon Steel Dished Head

Carbon Steel Dished Head

Stainless Steel 904L Dished Ends

Stainless Steel 904L Dished Ends

DIN 28013 hemispherical ends

DIN 28013 hemispherical ends

MS Purdies Dished Head

MS Purdies Dished Head

Alloy Steel Tank Dished Ends

Alloy Steel Tank Dished Ends

Carbon Steel Pressure Vessel Dished Ends

Carbon Steel Pressure Vessel Dished Ends

DIN 28011 Torispherical Heads

DIN 28011 Torispherical Heads

SS 316 Ellipsoidal Dish End

SS 316 Ellipsoidal Dish End

Stainless Steel Dished Ends

Code FOSTD - FOXS Height
H mm		 Theoretical Weight kg Wall Th. S mm Nominal Diameter
STD XS STD XS Poll. D mm
5 25.4 0.03 - 2.77 3.73 1/2 21.34
20 38.1 0.27 0.32 3.91 5.54 2 60.32
10 38.1 0.10 0.14 3.38 4.55 1 33.40
12 38.1 0.14 0.18 3.56 4.85 1” 1/4 42.16
7 25.4 0.06 0.08 2.87 3.91 3/4 26.67
15 38.1 0.16 0.23 3.68 5.08 1” 1/2 48.26
25 38.1 0.41 0.45 5.16 7.01 2” 1/2 73.02
40 63.5 1.15 1.54 6.02 8.56 4 114.30
50 76.2 1.90 2.59 6.55 9.52 5 141.30
30 50.8 0.65 0.82 5.49 7.62 3 88.90
60 88.9 2.92 4.10 7.11 10.97 6 168.27
80 101.6 5.07 7.3 8.18 12.70 8 219.07
120 152 13.6 17.0 9.52 12.70 12 323.9
200 229 35.60 46.98 9.52 12.70 20 508
100 127 9.1 12.0 9.27 12.70 10 273
160 178 18.86 25.89 9.52 12.70 16 406.4
140 165 14.42 19.8 9.52 12.70 14 355.6
180 203 27.65 36.52 9.52 12.70 18 457.2
240 267 46 64.60 9.52 12.70 24 609.6
ISO 14001:2015 certified Dished Ends manufacturers in India offers wide selection of SS 304/ 316 Ellipsoidal Dish End in Mumbai
  • Diameter - 1250 to 4000mm
  • Thickness - 4mm up to 25mm
  • Profile - 2:1 semi ellipsoidal, 10% or 6% torispherical
DN=DI/mm Hi/mm Hi=H-h h(mm) Straight Edge Height
25 40 50
internal surface area S/m2,Volume V/m2
S V S V S V
300 75 0.12 0.005
400 100 0.20 0.012
500 125 0.31 0.021 0.33 0.024
600 150 0.44 0.035 0.47 0.040
700 175 0.59 0.055 0.62 0.060
800 200 0.76 0.080 0.79 0.087
900 225 0.95 0.111 0.99 0.121
1000 250 1.16 0.151 1.21 0.162
1200 300 1.66 0.254 1.71 0.271
1400 350 2.23 0.398 2.30 0.421
1600 400 2.90 0.586 2.98 0.617
1800 450 3.65 0.827 3.71 0.865 4.21 1.040
Size 1mm thick to 25mm thick,150mm dia to 2500mm dia
Diameter 300MM - 2500MM

Curved Disc

r1 = acc. to your specification

Torispherical Heads Acc. To DIN 28011

  • r1 = da
  • h2 = 0,1935da - 0,455s
  • h1 = 3,5s or acc. to your specification
  • h3 = h1 + h2
  • r2 = 0,1da

Elliptical Heads 2 : 1

  • di = da - 2 x s
  • r1 = 0,9 x di
  • h3 = h1 + h2
  • h1 = acc. to your specification
  • h2 = 0,25 x di
  • r2 = 0,17 x di

Elliptical Heads 1,9 : 1

  • di = da - 2 x s
  • r1 = di / 1,16
  • r2 = di / 5,39
  • h1 = acc. to NFE 81-103
  • h2 = di / 3,8
  • h3 = h1 + h2

Semi-Elliptical Heads Acc. To DIN 28013

  • r1 = 0,8da
  • r2 = 0,154da
  • h1 = 3s
  • h2 = 0,255da - 0,635s
  • h3 = h1 + h2

Normal Convex And Flat Convex Boiler Ends

  • r1 = da - 1,4da or acc. to your specification
  • r2 = 30 - 50 millimeter or acc. to your specification
  • h1= ~20 - 30 millimetre or acc. to your specification

Flat Heads

  • r2 = 30 - 50 millimetre or acc. to your specification
  • h1 = ~20 - 30 millimeter or acc. to your specification

Flanged Discs

  • r1 = di
  • b = 70mm
  • da= da - di

Tank Ends

  • for single skin tanks EN 12285 bzw. DIN 6608/6616
  • for double skin tanks EN 12285 bzw. DIN 6608/2 | 6616/2
  • r1 = da
  • r2 ~ 1/30 da

Technical Explanations

  • di = internal diameter
  • da = external diameter
  • r2 = knuckle radius
  • r1 = crown radius
  • h2 = height of crown radius
  • h3 = total internal height
  • h1 = straight flange
  • s = wall thickness
Diameter Tolerance -1mm~1mm
Outside Perimeter Tolerance -3mm~3mm
Petromet Flange is one of the leading Stainless Steel Dished Ends manufacturers in India, producing Flanged Ends and Stainless Steel Pressure Vessel Dished Ends according to DIN 28013/ BS 1501-151-430A for Petrochemical, Oil, and Gas industry
  • Petrochemicals
  • Atomic Energy
  • Food And Pharmaceuticals
  • Storage Tanks
  • Industrial Autoclaves
  • Nuclear Power
  • X-ray examination of weld seams
  • Semi-automatic seam welding of plates on SAF welding plant
  • Acid cleaning of finished ends
  • Edge preparations to client's requirements
  • Hardness tester
  • Roughness tester
  • Stamping of Dished End
  • Spinning

Spinning is often done on a head with a reasonably wide diameter (internal diameter greater than 700 mm) and a thin wall thickness. Stamping is done with a punch that fits the shape of the inner wall of the head. The size of the punching machine limits the size and shape of the forming head. Due to the high cost of the punching die, only the standard head is normally manufactured, and the press head is further classified as hot press and cold press.

  • Raw material into the factory
  • Material reinspection
  • Head blanking, material marking
  • Select the right mold, stamping through external force
  • Head shape verification (surface depth, straight edge height, roundness, dimensions, thickness, etc.)
  • After forming to cut the groove
  • Groove for grinding processing
  • In order to make the surface smooth, stainless steel needs pickling and passivation, carbon steel needs sand blasting
  • Final inspection, labeling, storage.

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