
The elliptical head 1000 mm is a metric catalogue size for process vessels and tanks. It can follow the catalogue profile or an agreed drawing with project-specific flange and edge requirements.
At diameter 1000 mm, typical h2 = 250 mm. Confirm the mating dimension, shell thickness and any additional edge machining before manufacturing.
Specifications for elliptical heads 1000 mm
| Parameter | Value |
|---|---|
| Diameter D | 1000 mm |
| Wall thickness S | 3–22 mm |
| Elliptical dish depth h2 | 250 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 = 1000 mm
| Thickness S, mm | Straight flange height h1, mm | Elliptical dish depth h2, mm | Note |
|---|---|---|---|
| 3 | To be agreed | 250 | Individual drawing / technical specification |
| 4 | To be agreed | 250 | Individual drawing / technical specification |
| 5 | 25 | 250 | GOST 6533-78, Table 2 |
| 6 | 25 | 250 | GOST 6533-78, Table 2 |
| 8 | 25 | 250 | GOST 6533-78, Table 2 |
| 10 | 25 | 250 | GOST 6533-78, Table 2 |
| 12 | 40 | 250 | GOST 6533-78, Table 2 |
| 14 | 40 | 250 | GOST 6533-78, Table 2 |
| 16 | 40 | 250 | GOST 6533-78, Table 2 |
| 18 | 40 | 250 | GOST 6533-78, Table 2 |
| 20 | 40 | 250 | GOST 6533-78, Table 2 |
| 22 | 40 | 250 | 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 1000 mm

Inspection of D = 1000 mm focuses on mating diameter, ovality and straight flange, particularly when the head is delivered to another facility for assembly with a prepared shell.
Checks during manufacturing include:
- initial blank thickness and condition;
- Diameter D = 1000 mm;
- elliptical dish depth h2 = 250 mm;
- knuckle geometry and uniformity;
- component ovality;
- surface and edge condition.
Applications of the elliptical head 1000 mm
Diameter 1000 mm is used in several equipment classes. Related applications include air receivers and tanks; suitability remains project-specific.
- Vertical air receivers
- Fire water tanks
- other vessels where D = 1000 mm is specified in the design documentation.
Pressure vessels and tanks have different material and inspection requirements. State the equipment application before requesting a price.


GOST 6533-78 — 1000 mm
For the catalogue elliptical profile of diameter 1000 mm, dish depth h2 = 250 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.
Germes-Ural manufactures heads 1000 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 1000 mm
For D = 1000 mm, confirm both sheet thickness and the mating diameter against the actual customer shell.
- thickness S and material grade;
- required straight flange height h1;
- equipment application, medium, pressure and temperature;
- edge preparation and welded joint requirements;
- diameter specified in the drawing: external, internal or mating;
- edge preparation for the specific welded joint;
- drawing or technical specification for a project-specific configuration.

Materials for the head 1000 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
At D = 1000 mm, St20, 09G2S and stainless configurations may be specified. Material follows the medium, temperature and calculations rather than size alone.

Quality inspection of heads 1000 mm
The main component parameters are checked before delivery. In addition to the overall profile, the straight flange is checked for compliance with the agreed shell mating geometry.
- compliance of diameter D = 1000 mm;
- elliptical dish depth h2 = 250 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 1000 mm
What dish depth and flange height are specified for elliptical head 1000 mm?
For diameter 1000 mm, the typical elliptical dish depth h2 is 250 mm, equivalent to 0,25D.
Can the head 1000 mm be used in vertical 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 D = 1000 mm, confirm sheet thickness and mating diameter against the actual customer shell. Include material, h1, quantity, application and any drawing or specification.
Which material grades are available for elliptical head 1000 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 1000 mm be manufactured to a drawing?
Yes. Manufacturing can follow GOST, technical specifications and individual customer engineering documentation.
Where can elliptical head 1000 mm be delivered?
A one-metre diameter can be supplied as a single head, several matching heads or a mixed shipment with other order items.

Delivery of elliptical heads 1000 mm across Russia
A one-metre diameter can be supplied as a single head, several matching heads or a mixed shipment with other order items.
Germes-Ural delivers across Russia and CIS countries. Supply details are confirmed for quantity, material, batch weight and destination.
Order elliptical heads 1000 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 1000 mm. The complete size range is listed under Elliptical heads.