Elliptical head 1300 mm — profile diagram

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The elliptical head 1300 mm is used in medium process equipment where location and medium matter alongside geometry. Underground and gas applications require a separate material and design review.

For D = 1300 mm, h2 = 325 mm. Steel grade and thickness within 3–22 mm are selected through calculations and the specification.

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Specifications for elliptical heads 1300 mm

Parameter Value
Diameter D 1300 mm
Wall thickness S 3–22 mm
Elliptical dish depth h2 325 mm
Straight flange height h1 Depends on material thickness and project requirements
Head type Elliptical, flanged
Manufacturing process Cold flanging
Standards and documentation GOST 6533-78, GOST 34347-2017, GOST 34233.2-2017, technical specifications and customer drawings
Materials St3, St20, 09G2S, 17G1S, 08Kh18N10T, 12Kh18N10T and other specified steel grades
Application Vessels, tanks and process equipment according to the project
Heat treatment As required by the project
Quality inspection Checks of geometry, thickness, surface and compliance with the specification
Delivery Russia and CIS countries

Typical dimensions for D = 1300 mm

Thickness S, mm Straight flange height h1, mm Elliptical dish depth h2, mm Note
3 To be agreed 325 Individual drawing / technical specification
4 To be agreed 325 Individual drawing / technical specification
5 To be agreed 325 Individual drawing / technical specification
6 25 325 GOST 6533-78, Table 2
8 25 325 GOST 6533-78, Table 2
10 40 325 GOST 6533-78, Table 2
12 40 325 GOST 6533-78, Table 2
14 40 325 GOST 6533-78, Table 2
16 40 325 GOST 6533-78, Table 2
18 40 325 GOST 6533-78, Table 2
20 40 325 GOST 6533-78, Table 2
22 60 325 GOST 6533-78, Table 2

The straight flange height h1 is selected by diameter and thickness from GOST 6533-78, Table 2 (internal basic diameter). Sizes and thicknesses absent from that table, including 3 mm, require an agreed drawing or technical specification. h2 = D/4 for this elliptical profile.

Manufacturing elliptical heads 1300 mm

Cold forming and flanging of dished ends

Production of 1300 mm maintains the profile without local deformation and preserves a uniform knuckle, reducing adjustment and helping position the head relative to the shell.

Checks during manufacturing include:

  • initial blank thickness and condition;
  • Diameter D = 1300 mm;
  • elliptical dish depth h2 = 325 mm;
  • knuckle geometry and uniformity;
  • component ovality;
  • surface and edge condition.

Applications of the elliptical head 1300 mm

Related applications include underground LPG tanks and filter separators, where service conditions significantly affect component requirements.

The same size is not automatically interchangeable between an underground tank and filter separator. Each equipment design specifies its configuration.

Vessel equipment applications
Dished-end profile and manufacturing requirements

GOST 6533-78 — 1300 mm

For the catalogue elliptical profile of diameter 1300 mm, dish depth h2 = 325 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.

Germes-Ural manufactures heads 1300 mm with reference to GOST 6533-78, GOST 34347-2017, GOST 34233.2-2017, calculations and the technical specification. Non-standard parameters are recorded in the agreed drawing.

Ordering requirements for a head 1300 mm

For D = 1300 mm intended for specialised equipment, include equipment location conditions and the medium.

  • thickness S and material grade;
  • required straight flange height h1;
  • equipment application, medium, pressure and temperature;
  • edge preparation and welded joint requirements;
  • equipment location and climate conditions;
  • design requirements for material corrosion resistance;
  • drawing or technical specification for a project-specific configuration.
Materials for dished-end manufacturing

Materials for the head 1300 mm

Carbon and low-alloy steels

St3, St20, 09G2S, 17G1S, 20YuCh and Other steel grades

Stainless steels

08Kh18N10T, 12Kh18N10T, 10Kh17N13M2T, AISI 304, AISI 321, AISI 316Ti and equivalents

Aluminium alloys

AMg3, AMg5, AMg6 and other alloys by agreement

Titanium and special alloys

VT1-0, VT5, VT6, OT4-0 and other materials to the design documentation

Steel selection considers pressure, temperature, medium and location conditions, particularly for underground and oil and gas equipment.

Geometry and quality inspection of dished ends

Quality inspection of heads 1300 mm

The main component parameters are checked before delivery. Surface and knuckle inspection considers subsequent welding and vessel tightness requirements.

  • compliance of diameter D = 1300 mm;
  • elliptical dish depth h2 = 325 mm;
  • metal thickness;
  • ovality and knuckle geometry;
  • surface and edge quality;
  • compliance with GOST, technical specifications or the drawing.

Why choose Germes-Ural

  • Dished end manufacturing since 2004;
  • Our own manufacturing facility;
  • Head diameters from 100 to 4700 mm;
  • Metal thickness from 3 to 40 mm;
  • Manufactured to GOST, technical specifications and customer drawings;
  • Quality checks throughout manufacturing;
  • Delivery across Russia and CIS countries.

Frequently asked questions about the head 1300 mm

What dish depth and flange height are specified for elliptical head 1300 mm?

For diameter 1300 mm, the typical elliptical dish depth h2 is 325 mm, equivalent to 0,25D.

Can the head 1300 mm be used in underground LPG tanks?

Elliptical heads are used in this equipment class, but the actual diameter, thickness, material and geometry must match the specific vessel design.

What information is needed for a quotation?

For specialised equipment of D = 1300 mm, state location conditions and medium. Include thickness, material, h1, quantity, application and any drawing or specification.

Which material grades are available for elliptical head 1300 mm?

Yes, these materials are in the production range. The exact grade and thickness are confirmed after reviewing medium, temperature, pressure and design requirements.

Can elliptical head 1300 mm be manufactured to a drawing?

Yes. Manufacturing can follow GOST, technical specifications and individual customer engineering documentation.

Where can elliptical head 1300 mm be delivered?

Surface and edge are protected during 1300 mm delivery. Packaging for stainless steel can be agreed separately.

Packaging of dished ends

Delivery of elliptical heads 1300 mm across Russia

Surface and edge are protected during 1300 mm delivery. Packaging for stainless steel can be agreed separately.

Germes-Ural delivers across Russia and CIS countries. Supply details are confirmed for quantity, material, batch weight and destination.

Order elliptical heads 1300 mm

Provide diameter, thickness, material, quantity and equipment application. Germes-Ural specialists will confirm geometry and inspection requirements and prepare a quotation.

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    This page describes elliptical heads of diameter 1300 mm. The complete size range is listed under Elliptical heads.

    Other diameters of elliptical heads

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    Other head types

    Torispherical Flanged conical heads Shallow dished heads Domed flanged heads Flat flanged heads Spherical heads

    Domed flanged headsFlanged conical headsFlat flanged heads