Elliptical head 900 mm — profile diagram

Clarification filtersIndustrial separators

The elliptical head 900 mm is used in compact and medium vessels needing a formed edge for cylindrical shell assembly. Its installed height and geometry are checked against the project.

For D = 900 mm, elliptical dish depth h2 = 225 mm. Agree thickness, h1, steel grade and equipment application when ordering.

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Specifications for elliptical heads 900 mm

Parameter Value
Diameter D 900 mm
Wall thickness S 3–22 mm
Elliptical dish depth h2 225 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 = 900 mm

Thickness S, mm Straight flange height h1, mm Elliptical dish depth h2, mm Note
3 To be agreed 225 Individual drawing / technical specification
4 To be agreed 225 Individual drawing / technical specification
5 25 225 GOST 6533-78, Table 2
6 25 225 GOST 6533-78, Table 2
8 25 225 GOST 6533-78, Table 2
10 25 225 GOST 6533-78, Table 2
12 40 225 GOST 6533-78, Table 2
14 40 225 GOST 6533-78, Table 2
16 40 225 GOST 6533-78, Table 2
18 40 225 GOST 6533-78, Table 2
20 40 225 GOST 6533-78, Table 2
22 40 225 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 900 mm

Cold forming and flanging of dished ends

For 900 mm, forming checks particularly cover profile symmetry and consistent flange height around the circumference. For receiver and tank batches, process settings and inspection support repeatable geometry.

Checks during manufacturing include:

  • initial blank thickness and condition;
  • Diameter D = 900 mm;
  • elliptical dish depth h2 = 225 mm;
  • knuckle geometry and uniformity;
  • component ovality;
  • surface and edge condition.

Applications of the elliptical head 900 mm

Applications for 900 mm include air receivers and drainage equipment. The following links describe specific equipment uses.

For an air receiver or EP/EPP tank, submit shell dimensions and operating conditions with the enquiry. Equal D can require different thicknesses and materials.

Vessel equipment applications
Dished-end profile and manufacturing requirements

GOST 6533-78 — 900 mm

For the catalogue elliptical profile of diameter 900 mm, dish depth h2 = 225 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.

Germes-Ural manufactures heads 900 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 900 mm

For 900 mm, check the actual shell diameter and joining method in advance to reduce adjustments after forming.

  • thickness S and material grade;
  • required straight flange height h1;
  • equipment application, medium, pressure and temperature;
  • edge preparation and welded joint requirements;
  • actual external or internal diameter of the mating shell;
  • batch and repeatability requirements;
  • drawing or technical specification for a project-specific configuration.
Materials for dished-end manufacturing

Materials for the head 900 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

Receivers and process tanks may use carbon or low-alloy steels, while corrosive media may require stainless grades. Grade selection for D = 900 mm follows the vessel design conditions.

Geometry and quality inspection of dished ends

Quality inspection of heads 900 mm

The main component parameters are checked before delivery. For a 900 mm batch intended for matching shells, include profile repeatability checks.

  • compliance of diameter D = 900 mm;
  • elliptical dish depth h2 = 225 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 900 mm

What dish depth and flange height are specified for elliptical head 900 mm?

For diameter 900 mm, the typical elliptical dish depth h2 is 225 mm, equivalent to 0,25D.

Can the head 900 mm be used in horizontal air receivers?

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 900 mm, check actual shell diameter and the joining method before forming. Include D, thickness, material, h1, quantity, application and any drawing or specification.

Which material grades are available for elliptical head 900 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 900 mm be manufactured to a drawing?

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

Where can elliptical head 900 mm be delivered?

Heads 900 mm can be supplied in batches to the customer’s manufacturing facility. Agree packing and stacking in advance to protect the formed edges of matching components.

Packaging of dished ends

Delivery of elliptical heads 900 mm across Russia

Heads 900 mm can be supplied in batches to the customer’s manufacturing facility. Agree packing and stacking in advance to protect the formed edges of matching components.

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

Order elliptical heads 900 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 900 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