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The elliptical head 2800 mm is used in large tanks and separators. Consider the assembly arrangement at the enquiry stage because dimensions affect loading, access and assembly organisation.
The elliptical dish depth at D = 2800 mm is 700 mm. Agree h1, thickness and edge parameters before production.
Specifications for elliptical heads 2800 mm
| Parameter | Value |
|---|---|
| Diameter D | 2800 mm |
| Wall thickness S | 3–22 mm |
| Elliptical dish depth h2 | 700 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 = 2800 mm
| Thickness S, mm | Straight flange height h1, mm | Elliptical dish depth h2, mm | Note |
|---|---|---|---|
| 3 | To be agreed | 700 | Individual drawing / technical specification |
| 4 | To be agreed | 700 | Individual drawing / technical specification |
| 5 | To be agreed | 700 | Individual drawing / technical specification |
| 6 | To be agreed | 700 | Individual drawing / technical specification |
| 8 | 40 | 700 | GOST 6533-78, Table 2 |
| 10 | 60 | 700 | GOST 6533-78, Table 2 |
| 12 | 60 | 700 | GOST 6533-78, Table 2 |
| 14 | 60 | 700 | GOST 6533-78, Table 2 |
| 16 | 60 | 700 | GOST 6533-78, Table 2 |
| 18 | 60 | 700 | GOST 6533-78, Table 2 |
| 20 | 80 | 700 | GOST 6533-78, Table 2 |
| 22 | 80 | 700 | 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 2800 mm
Manufacturing 2800 mm includes geometry inspection and safe handling preparation. Avoid concentrated loads during storage and lifting of this large component.
Checks during manufacturing include:
- initial blank thickness and condition;
- Diameter D = 2800 mm;
- elliptical dish depth h2 = 700 mm;
- knuckle geometry and uniformity;
- component ovality;
- surface and edge condition.
Applications of the elliptical head 2800 mm
Applications for 2800 mm include gas-liquid separators and fire water tanks.
- Gas-liquid centrifugal separators
- Fire water tanks
- other vessels where D = 2800 mm is specified in the design documentation.
Each equipment type needs its own calculations. D = 2800 mm is a catalogue production size used where specified by the design.
GOST 6533-78 — 2800 mm
For the catalogue elliptical profile of diameter 2800 mm, dish depth h2 = 700 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.
Germes-Ural manufactures heads 2800 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 2800 mm
Before ordering 2800 mm, state assembly opening restrictions, unloading conditions and lifting requirements.
- thickness S and material grade;
- required straight flange height h1;
- equipment application, medium, pressure and temperature;
- edge preparation and welded joint requirements;
- assembly opening or site access restrictions;
- preferred lifting and unloading method;
- drawing or technical specification for a project-specific configuration.
Materials for the head 2800 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 selection considers design pressure, temperature and medium. A large diameter still requires an engineering calculation of thickness.
Quality inspection of heads 2800 mm
The main component parameters are checked before delivery. In addition to dimensions, edge condition is checked after handling within production and before final packaging.
- compliance of diameter D = 2800 mm;
- elliptical dish depth h2 = 700 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 2800 mm
What dish depth and flange height are specified for elliptical head 2800 mm?
For diameter 2800 mm, the typical elliptical dish depth h2 is 700 mm, equivalent to 0,25D.
Can the head 2800 mm be used in gas-liquid centrifugal separators?
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?
Before ordering 2800 mm, state assembly opening, unloading and lifting restrictions. Include D, thickness, material, h1, quantity, application and any drawing or specification.
Which material grades are available for elliptical head 2800 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 2800 mm be manufactured to a drawing?
Yes. Manufacturing can follow GOST, technical specifications and individual customer engineering documentation.
Where can elliptical head 2800 mm be delivered?
Transport and unloading for D = 2800 mm are agreed in advance, particularly for direct delivery to a construction or assembly site.
Delivery of elliptical heads 2800 mm across Russia
Transport and unloading for D = 2800 mm are agreed in advance, particularly for direct delivery to a construction or assembly site.
Germes-Ural delivers across Russia and CIS countries. Supply details are confirmed for quantity, material, batch weight and destination.
Order elliptical heads 2800 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 2800 mm. The complete size range is listed under Elliptical heads.
Domed flanged headsFlanged conical headsFlat flanged heads