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Domed flanged head 4100 mm. A spherical crown with radius R equal to nominal diameter D joins the cylindrical straight flange through a formed knuckle.
Germes-Ural manufactures domed flanged heads of diameter 4100 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 4100 mm
| Parameter | Value |
|---|---|
| Diameter D | 4100 mm |
| Thickness s | 3–22 mm |
| Straight flange h1 | See the table row and agreed drawing |
| Knuckle radius r | 100 mm |
| Crown radius R | 4100 mm |
| Height h2 | According to the agreed profile |
| Head type | Domed flanged 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 = 4100 mm
| s, mm | h1, mm | R, mm | r, mm |
|---|---|---|---|
| 3 | ≥ 10,5 | 4100 | 100 |
| 4 | ≥ 14,0 | 4100 | 100 |
| 5 | ≥ 17,5 | 4100 | 100 |
| 6 | ≥ 21,0 | 4100 | 100 |
| 8 | ≥ 28,0 | 4100 | 100 |
| 10 | ≥ 35,0 | 4100 | 100 |
| 12 | ≥ 42,0 | 4100 | 100 |
| 14 | ≥ 49,0 | 4100 | 100 |
| 16 | ≥ 56,0 | 4100 | 100 |
| 18 | ≥ 63,0 | 4100 | 100 |
| 20 | ≥ 70,0 | 4100 | 100 |
| 22 | ≥ 77,0 | 4100 | 100 |
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 4100 mm
For diameter 4100 mm, the crown radius R = 4100 mm is combined with knuckle radius r = 100 mm. Dish depth and straight flange length are checked against the same drawing revision.
- 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 4100 mm
Specify the operating requirements for the equipment: Heads for flare separators (FS), Heads for horizontal air receivers. The size and profile are selected according to the equipment design.
A crown radius R = D does not make a domed flanged head interchangeable with a shallow dished or torispherical head. Knuckle radius, heights and thickness after forming must also be compared.
Profile 4100 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.
Batch lead time and material availability
Lead time for 4100 mm depends on the blank, quantity and operations. A large diameter does not establish availability of every material or thickness combination. A quotation follows review of the complete documentation.
For domed flanged heads 4100 mm, include this requirement in the technical specification together with the profile dimensions: R = 4100 mm; r = 100 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 — 4100 mm
The material grade is matched to the shell, medium and design temperature. For domed flanged heads 4100 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 4100 mm
For diameter 4100 mm, the crown radius R = 4100 mm is combined with knuckle radius r = 100 mm. Dish depth and straight flange length are checked against the same drawing revision.
- 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;
- Domed flanged heads: diameters 600–4300 mm;
- Domed flanged head thickness: 3–22 mm; as specified;
- Manufactured to GOST, technical specifications and customer drawings;
- Quality checks throughout manufacturing;
- Delivery across Russia and CIS countries.
Frequently asked questions
What is the lead time for domed flanged head 4100 mm?
It depends on the material, thickness, batch, processing and inspection. Indicative schedules are confirmed after the specification and blank availability are checked.
How does this profile differ from other head types?
The published domed flanged profile uses R = D, whereas the shallow dished profile uses R greater than D. Even at the same diameter, head height and mating geometry must be checked against the drawing.
What thickness is available for domed flanged head 4100 mm?
The published table lists thicknesses of 3–22 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 domed flanged head 4100 mm?
The lead time is confirmed after the specification is agreed, taking into account blank availability, batch size and processing operations.
Delivery of heads 4100 mm
Packaging and transport are selected for the actual height, weight and batch quantity. At diameter 4100 mm, crown radius R = 4100 mm is combined with knuckle radius r = 100 mm. Dish depth and straight flange length are checked against the same drawing revision.
Prepared edges and surfaces are protected during transport. Include unloading conditions and any special packaging requirements in the order.
Order domed flanged heads 4100 mm
Germes-Ural specialists will prepare a quotation and confirm the material, thickness and geometry requirements for your project.