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Flanged conical head 3800 mm. The cone connects the large diameter D to the small diameter d; the formed edge provides the transition to the cylindrical section.
Germes-Ural manufactures flanged conical heads of diameter 3800 mm to the agreed drawing. Profile and thickness are selected for the equipment; applicable GOST requirements are considered in the project and order.
Specifications for heads 3800 mm
| Parameter | Value |
|---|---|
| Diameter D | 3800 mm |
| Thickness s | 4–22 mm |
| Straight flange h1 | See the table row and agreed drawing |
| Knuckle radius r | 50–200 mm |
| Cone angle α | 80–150°; as specified by the project |
| Small-end diameter d | ≥ 600 mm |
| Height H | ≤ 1300 mm |
| Head type | Flanged conical head |
| Manufacturing | Forming and flanging to the agreed process |
| Documentation | Technical specifications, drawing and applicable GOST requirements |
| Material | Grade and condition according to the specification |
| Inspection | Profile, dimensions, thickness and surface |
| Supply | Russia and CIS countries |
Typical dimensions for D = 3800 mm
| s, mm | h1, mm | r, mm | α, ° | d, mm | H, mm |
|---|---|---|---|---|---|
| 4 | ≥ 14 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 5 | ≥ 17,5 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 6 | ≥ 21 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 8 | ≥ 28 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 10 | ≥ 35 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 12 | ≥ 42 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 14 | ≥ 49 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 16 | ≥ 56 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 18 | ≥ 63 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 20 | ≥ 70 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
| 22 | ≥ 77 | 50–200 | 80–150 | ≥ 600 | ≤ 1300 |
The table retains the company’s published dimensions. The combination of size, material and loads is agreed against the drawing; the thickness range does not establish an allowable operating pressure.
Manufacturing heads 3800 mm
For the large diameter 3800 mm, the catalogue specifies d ≥ 600 mm, α 80–150° and H ≤ 1300 mm. These limits are checked as one complete profile, including knuckle radius r = 50–200 mm.
- Mating diameter and tolerances
- Agreed profile and smooth transitions
- Finished component thickness
- Straight flange and weld edge preparation
- Compliance of the material with the specification
Applications of heads 3800 mm
Specify the operating requirements for the equipment: Heads for clarification filters, Heads for industrial separators. The size and profile are selected according to the equipment design.
Cone angle α, small-end diameter d and overall height H are geometrically linked. Catalogue values should not be selected independently: the complete profile and its suitability are checked by the equipment design.
Profile 3800 mm and requirements GOST
GOST 34347-2017 sets general technical requirements for welded steel vessels. Calculations for cylindrical and conical components, dished and flat heads use the applicable provisions of GOST 34233.2-2017 and the project documentation.
The catalogue shows the company’s production range. It does not extend the scope of the standards or replace allowable pressure calculations. The profile, radii, heights and finished thickness are agreed in the technical specification and drawing.
Heat treatment after forming
Heat treatment for 3800 mm follows the material and documentation. Cold forming does not exclude subsequent heating operations. Treatment and subsequent inspection requirements are recorded in the agreed process specification.
For flanged conical heads 3800 mm, include this requirement in the technical specification together with the profile dimensions: α = 80–150°, d ≥ 600 mm.
Materials
Carbon steels
20YuCh, 09G2S, St3sp5, St20, 17G1S
Aluminium alloys
AMg3, AMg5, AMg61 (1561), R-1407
Stainless steels
08(12)Kh18N10T, 10Kh17N13M2T, AISI 321, AISI 304, AISI 316Ti and Other
Titanium alloys
VT1-0, VT5, VT6, VT8, VT9, OT4-O
Material and operating conditions — 3800 mm
The material grade is matched to the shell, medium and design temperature. For flanged conical heads 3800 mm, state the finished thickness, corrosion allowance, surface and heat treatment requirements. Feasibility of the exact combination is confirmed for the order.
Quality inspection of heads 3800 mm
For the large diameter 3800 mm, the catalogue specifies d ≥ 600 mm, α 80–150° and H ≤ 1300 mm. These limits are checked as one complete profile, including knuckle radius r = 50–200 mm.
- Mating diameter and ovality
- Dimensions according to the agreed drawing
- Thickness in inspection zones
- Surface, straight flange and edge
- Openings and additional connections
Why choose Germes-Ural
- Dished end manufacturing since 2004;
- Our own manufacturing facility;
- Flanged conical heads: diameters 600–4200 mm;
- Flanged conical head thickness: 4–22 mm; as specified;
- Manufactured to GOST, technical specifications and customer drawings;
- Quality checks throughout manufacturing;
- Delivery across Russia and CIS countries.
Frequently asked questions
Can heat treatment be included?
Heat treatment follows the applicable material and project requirements. There is no universal treatment cycle for every order of this diameter.
How is the allowable operating pressure determined?
No. The catalogue interval describes a production range; suitability of an angle depends on the construction, loads and calculations. Include D, d, α, H and a drawing of the transitions in the enquiry.
What thickness is available for flanged conical head 3800 mm?
The published table lists thicknesses of 4–22 mm. Thickness is selected by calculation for the medium and loads. Material, allowances and the condition after forming are recorded in the documentation.
What information is needed for a quotation?
Provide the drawing, material grade, thickness, quantity, operating conditions, edge preparation, openings and inspection requirements. Include the delivery destination and unloading conditions.
What is the lead time for flanged conical head 3800 mm?
The lead time is confirmed after the specification is agreed, taking into account blank availability, batch size and processing operations.
Delivery of heads 3800 mm
Packaging and transport are selected for the actual height, weight and batch quantity. For the large diameter 3800 mm, the catalogue specifies d ≥ 600 mm, α = 80–150° and H ≤ 1300 mm. These limits are confirmed as one profile, including knuckle radius r = 50–200 mm.
Prepared edges and surfaces are protected during transport. Include unloading conditions and any special packaging requirements in the order.
Order flanged conical heads 3800 mm
Germes-Ural specialists will prepare a quotation and confirm the material, thickness and geometry requirements for your project.