Elliptical head 3100 mm — profile diagram

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The elliptical head 3100 mm is a large end component for project-specific tank equipment. Agree the drawing together with acceptance, loading and handover for installation.

Elliptical dish depth for D = 3100 mm is 775 mm. Thickness within the production range 3–22 mm is confirmed by calculations for the actual component.

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Specifications for elliptical heads 3100 mm

Parameter Value
Diameter D 3100 mm
Wall thickness S 3–22 mm
Elliptical dish depth h2 775 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 = 3100 mm

Thickness S, mm Straight flange height h1, mm Elliptical dish depth h2, mm Note
3 To be agreed 775 Individual drawing / technical specification
4 To be agreed 775 Individual drawing / technical specification
5 To be agreed 775 Individual drawing / technical specification
6 To be agreed 775 Individual drawing / technical specification
8 To be agreed 775 Individual drawing / technical specification
10 To be agreed 775 Individual drawing / technical specification
12 To be agreed 775 Individual drawing / technical specification
14 To be agreed 775 Individual drawing / technical specification
16 To be agreed 775 Individual drawing / technical specification
18 To be agreed 775 Individual drawing / technical specification
20 To be agreed 775 Individual drawing / technical specification
22 To be agreed 775 Individual drawing / technical specification

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 3100 mm

Cold forming and flanging of dished ends

For 3100 mm, inspect the large profile before transport operations. After acceptance, supports and handling within the facility must preserve its shape.

Checks during manufacturing include:

  • initial blank thickness and condition;
  • Diameter D = 3100 mm;
  • elliptical dish depth h2 = 775 mm;
  • knuckle geometry and uniformity;
  • component ovality;
  • surface and edge condition.

Applications of the elliptical head 3100 mm

Related equipment includes BDN oil degassers and fire water tanks.

Large BDN units and tanks have different design requirements. The customer drawing confirms the specific application of D = 3100 mm.

Vessel equipment applications
Dished-end profile and manufacturing requirements

GOST 6533-78 — 3100 mm

For the catalogue elliptical profile of diameter 3100 mm, dish depth h2 = 775 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.

Germes-Ural manufactures heads 3100 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 3100 mm

For 3100 mm, specify acceptance requirements and the parameters to be recorded in the delivery documentation.

  • thickness S and material grade;
  • required straight flange height h1;
  • equipment application, medium, pressure and temperature;
  • edge preparation and welded joint requirements;
  • measurements required for customer acceptance;
  • photographic records, marking or accompanying documentation requirements;
  • drawing or technical specification for a project-specific configuration.
Materials for dished-end manufacturing

Materials for the head 3100 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

Material for a large vessel is selected by calculations and the medium. Special steels in the production range can be reviewed where required.

Geometry and quality inspection of dished ends

Quality inspection of heads 3100 mm

The main component parameters are checked before delivery. For D = 3100 mm, record the main geometry measurements before loading where specified by the order.

  • compliance of diameter D = 3100 mm;
  • elliptical dish depth h2 = 775 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 3100 mm

What dish depth and flange height are specified for elliptical head 3100 mm?

For diameter 3100 mm, the typical elliptical dish depth h2 is 775 mm, equivalent to 0,25D.

Can the head 3100 mm be used in BDN oil buffer degassers?

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 3100 mm, specify acceptance requirements and the parameters to record in delivery documents. Include D, thickness, material, h1, quantity, application and any drawing or specification.

Which material grades are available for elliptical head 3100 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 3100 mm be manufactured to a drawing?

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

Where can elliptical head 3100 mm be delivered?

Transport for 3100 mm is planned after the route and securing method are confirmed. Site delivery also requires unloading arrangements.

Packaging of dished ends

Delivery of elliptical heads 3100 mm across Russia

Transport for 3100 mm is planned after the route and securing method are confirmed. Site delivery also requires unloading arrangements.

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

Order elliptical heads 3100 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 3100 mm. The complete size range is listed under Elliptical heads.

    Other diameters of elliptical heads

    All sizes 2900 mm 3000 mm 3200 mm 3300 mm

    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