Elliptical head 800 mm — profile diagram

Horizontal air receiversCylindrical pressure vessels

The elliptical head 800 mm is a compact industrial size for receivers, drainage and process tanks. Its catalogue elliptical dish depth h2 is 200 mm.

For D = 800 mm, agree thickness, steel grade and straight flange height h1. Germes-Ural manufactures these heads by cold flanging to GOST 6533-78, technical specifications and customer drawings.

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Specifications for elliptical heads 800 mm

Parameter Value
Diameter D 800 mm
Wall thickness S 3–22 mm
Elliptical dish depth h2 200 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 Air receivers, drainage and process tanks, and vessels
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 = 800 mm

Thickness S, mm Straight flange height h1, mm Elliptical dish depth h2, mm Note
3 To be agreed 200 Individual drawing / technical specification
4 25 200 GOST 6533-78, Table 2
5 25 200 GOST 6533-78, Table 2
6 25 200 GOST 6533-78, Table 2
8 25 200 GOST 6533-78, Table 2
10 25 200 GOST 6533-78, Table 2
12 25 200 GOST 6533-78, Table 2
14 40 200 GOST 6533-78, Table 2
16 40 200 GOST 6533-78, Table 2
18 40 200 GOST 6533-78, Table 2
20 40 200 GOST 6533-78, Table 2
22 40 200 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 800 mm

Cold forming and flanging of dished ends

The 800 mm head needs an accurate crown-to-straight-flange transition. Agree blank thickness, steel grade, h1 and edge requirements before production. Cold flanging and inspection support repeatable geometry for individual and batch manufacturing.

During manufacturing of D = 800 mm, checks cover:

  • initial blank thickness and condition;
  • actual component diameter;
  • elliptical dish depth h2 = 200 mm;
  • uniformity of straight flange h1;
  • ovality and overall geometry;
  • surface and edge quality.

Applications of the elliptical head 800 mm

Heads of D = 800 mm can be manufactured for different vessel equipment. The vessel design determines the actual parameters. The following application categories are available:

Equipment selection considers D = 800 mm, shell thickness, operating pressure, temperature, medium and material.

Vessel equipment applications
Dished-end profile and manufacturing requirements

GOST 6533-78 — 800 mm

For the catalogue elliptical profile of diameter 800 mm, dish depth h2 = 200 mm, or 0,25 of D. Straight flange height h1 depends on thickness and the agreed configuration.

Germes-Ural manufactures heads 800 mm with reference to GOST 6533-78, GOST 34347-2017, GOST 34233.2-2017, calculations and the technical specification. Where the catalogue profile does not suit the design, record the agreed parameters in the customer drawing.

Features of the elliptical head 800 mm

  • compact size for different types of tank equipment;
  • elliptical profile with load distribution defined by vessel calculations;
  • straight flange to prepare the component for shell assembly;
  • selection of thickness and material for the specified medium;
  • individual and batch manufacturing;
  • manufacturing to GOST, technical specifications and customer drawings.
Materials for dished-end manufacturing

Materials for the head 800 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 D = 800 mm is selected for the vessel application. 09G2S, stainless or carbon steels may be specified where they meet the design conditions. Diameter alone does not determine grade.

Geometry and quality inspection of dished ends

Quality inspection of heads 800 mm

Before delivery, checks cover parameters affecting subsequent shell assembly:

  • compliance of diameter D = 800 mm with the specified value;
  • elliptical dish depth h2 = 200 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 800 mm

What dish depth and flange height are specified for elliptical head 800 mm?

For diameter 800 mm, the typical elliptical dish depth h2 is 200 mm, equivalent to 0,25D.

Can the head 800 mm be used for an air receiver?

Elliptical heads are used in vertical and horizontal air receivers. Diameter, thickness, material and geometry must match the vessel design.

Can the head 800 mm be manufactured in 09G2S steel?

Yes. 09G2S is included in the material range. Thickness and other parameters are agreed for the technical specification and operating conditions.

What determines h1 for diameter 800 mm?

Straight flange height h1 depends principally on metal thickness and the agreed configuration. Non-standard requirements are recorded in the specification or drawing.

Can a batch of matching heads 800 mm be manufactured?

Yes. Individual and batch production are possible. Material, thickness, geometry, quantity and inspection requirements are agreed in advance.

What information is needed for a quotation?

For a preliminary quotation, provide diameter 800 mm, thickness, steel grade, required h1, quantity, equipment application and any drawing or specification.

Packaging of dished ends

Delivery of elliptical heads 800 mm across Russia

Heads of diameter 800 mm can be delivered individually or in batches. Transport is selected for quantity, total weight, packaging, destination and the agreed schedule.

Germes-Ural arranges delivery across Russia and CIS countries. Batch stacking and packaging can be agreed in advance to support acceptance and subsequent use at the customer’s facility.

Order elliptical heads 800 mm

State thickness, material, quantity and equipment application. Germes-Ural specialists will confirm h1, edge requirements and a quotation for your project.

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    This page lists specifications and applications of the elliptical head 800 mm. Other sizes and general product information are available 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