Elliptical head 2500 mm

Elliptical head 2500 mm — profile diagram

The elliptical head 2500 mm is ordered for large industrial equipment with design documentation as the main parameter source. Nominal diameter and thickness range alone are insufficient.

The elliptical dish depth at D = 2500 mm is 625 mm. All additional dimensions and requirements are recorded in the specification or drawing.

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Specifications for elliptical heads 2500 mm

Parameter	Value
Diameter D	2500 mm
Wall thickness S	3–22 mm
Elliptical dish depth h2	625 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 = 2500 mm

Thickness S, mm	Straight flange height h1, mm	Elliptical dish depth h2, mm	Note
3	To be agreed	625	Individual drawing / technical specification
4	To be agreed	625	Individual drawing / technical specification
5	To be agreed	625	Individual drawing / technical specification
6	To be agreed	625	Individual drawing / technical specification
8	40	625	GOST 6533-78, Table 2
10	40	625	GOST 6533-78, Table 2
12	60	625	GOST 6533-78, Table 2
14	60	625	GOST 6533-78, Table 2
16	60	625	GOST 6533-78, Table 2
18	60	625	GOST 6533-78, Table 2
20	60	625	GOST 6533-78, Table 2
22	60	625	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 2500 mm

Cold forming and flanging of dished ends

Before manufacturing 2500 mm, review material, thickness, h1, tolerances, edge and inspection requirements to reduce changes after a large blank enters production.

Checks during manufacturing include:

initial blank thickness and condition;
Diameter D = 2500 mm;
elliptical dish depth h2 = 625 mm;
knuckle geometry and uniformity;
component ovality;
surface and edge condition.

Applications of the elliptical head 2500 mm

Applications for 2500 mm include BDN units and LPG storage tanks.

BDN oil buffer degassers
LPG storage tanks
other vessels where D = 2500 mm is specified in the design documentation.

In both applications, final geometry follows the vessel or tank design. This page does not assign a universal diameter to a particular model.

GOST 6533-78 — 2500 mm

For the catalogue elliptical profile of diameter 2500 mm, dish depth h2 = 625 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.

Germes-Ural manufactures heads 2500 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 2500 mm

For D = 2500 mm, submit a complete specification, particularly where special tolerances or documentation requirements apply.

thickness S and material grade;
required straight flange height h1;
equipment application, medium, pressure and temperature;
edge preparation and welded joint requirements;
inspection dimensions and special tolerances;
component records, certificates and accompanying documentation requirements;
drawing or technical specification for a project-specific configuration.

Materials for the head 2500 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 grade is selected for the medium and temperatures. Include relevant standards or design documentation where special requirements apply.

Geometry and quality inspection of dished ends

Quality inspection of heads 2500 mm

The main component parameters are checked before delivery. Acceptance of D = 2500 mm follows the agreed specification so measured parameters can be compared directly with the order.

compliance of diameter D = 2500 mm;
elliptical dish depth h2 = 625 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 2500 mm

What dish depth and flange height are specified for elliptical head 2500 mm?

For diameter 2500 mm, the typical elliptical dish depth h2 is 625 mm, equivalent to 0,25D.

Can the head 2500 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 D = 2500 mm, submit a complete specification, particularly for special tolerances or documentation. Include thickness, material, h1, quantity, application and any drawing or specification.

Which material grades are available for elliptical head 2500 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 2500 mm be manufactured to a drawing?

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

Where can elliptical head 2500 mm be delivered?

Delivery of 2500 mm is agreed for the quantity, weight and destination. Several components may require a separate packing arrangement.

Delivery of elliptical heads 2500 mm across Russia

Delivery of 2500 mm is agreed for the quantity, weight and destination. Several components may require a separate packing arrangement.

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

Order elliptical heads 2500 mm

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

This page describes elliptical heads of diameter 2500 mm. The complete size range is listed under Elliptical heads.

Other diameters of elliptical heads

All sizes 2300 mm 2400 mm 2600 mm 2700 mm

Other head types

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

Domed flanged heads Flanged conical heads Flat flanged heads