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Stainless Steel Pressure Vessel Heads
Caiyuan Stainless Steel supplies stainless steel heads for tanks, vessels and fabricated equipment from Foshan, China. Explore flat, dished, elliptical and hemispherical profiles, with material and dimensional options for your project.
Send your drawing, required grade, dimensions and quantity so we can review availability and prepare a quotation.
Flat, Dished, Elliptical & Hemispherical
Dimensions to Your Drawing
201 / 304 / 316 Stainless Steel
Drawing-Based Quotations
Stainless Steel Flat Head
Stainless steel flat heads feature a flat central surface, with an optional formed flange around the edge. Their shallow profile minimizes the space occupied by the tank end, making them a practical choice for atmospheric storage tanks, equipment covers and applications where a compact closure is important. Unlike curved heads, flat heads resist pressure primarily through bending, so pressure-service designs require particular attention to thickness and support.
Stainless Steel Dished Head
Stainless steel dished heads feature a rounded, dish-shaped profile that forms the end of a tank or vessel. The curved surface adds depth and internal volume compared with a flat closure, while the dish depth and edge geometry vary with the selected design. Used in storage tanks and process equipment, dished heads are available in different profiles, with suitability for pressure service determined by the specific geometry, material and thickness.
Stainless Steel Elliptical Head
Stainless steel elliptical heads, also known as ellipsoidal heads, have an elliptical cross-section that creates a rounded end with less depth than a hemisphere. The widely used 2:1 profile combines a relatively compact shape with efficient resistance to internal pressure, making it a common choice for pressure vessels and process tanks. Its geometry offers a practical balance between vessel space, structural performance and fabrication requirements.
Stainless Steel Hemispherical Head
Stainless steel hemispherical heads form half of a sphere, creating a deep, continuously curved vessel end. Their spherical geometry distributes internal pressure loads efficiently, making them an established option for high-pressure vessel designs. Compared with a typical 2:1 elliptical head of the same diameter, a hemispherical head occupies more end space, so its structural advantages must be considered alongside the vessel layout and forming requirements.
Pressure Vessel Head Specifications
Technical information
The specifications below summarize our listed material and size options. Availability depends on the combination of head profile, material, diameter and thickness. Please send your drawing to confirm the required configuration before ordering.
| Specification | Details |
|---|---|
| Head profiles | Flat / Dished / Elliptical / Hemispherical |
| Stainless steel grades | 201 / 304 / 316 |
| Available diameters | 300 / 385 / 480 / 585 / 685 mm (More diameters available upon request) |
| Thickness range | 1.0 – 8.0 mm (More thickness available upon request) |
| Other dimensions | Submit your drawing for availability review |
| Surface finish options | Brushed / Polished; availability to be confirmed for the selected head |
| Dimensional requirements | Specify the required tolerances in your drawing |
Pressure Vessel Head Dimensions
DIMENSION GUIDE
Use the dimension guide below when preparing your inquiry. State whether the diameter is an inside diameter (ID) or outside diameter (OD), and identify the thickness requirement clearly.
Not every dimension applies to every head profile. Your drawing should define the measurement points, profile and tolerances required for the order.
D — Diameter
The overall diameter of the pressure vessel head.
t — Thickness
The specified material thickness of the formed head.
H — Overall Head Height
The total depth or height of the head profile.
SF — Straight Flange
The straight section at the edge of the formed head.
CR — Crown Radius
The radius of the main curved section of the head profile.
KR — Knuckle Radius
The radius connecting the crown section to the straight flange.
PRESSURE VESSEL HEAD FAQ
What information should I provide for a pressure vessel head quotation?
Please provide the required head type, stainless steel grade, diameter, thickness, quantity and application. For custom pressure vessel heads, technical drawings and additional dimensional requirements can help us review your inquiry more accurately.
Are all listed sizes available for every head type?
Availability depends on the combination of head profile, material, diameter and thickness. The specification table is an overview; please submit your required configuration so we can confirm availability.
Should I specify inside or outside diameter?
Please state the diameter reference used in your design. Mark it clearly as inside diameter (ID) or outside diameter (OD) in your inquiry and drawing.
Can I request dimensions that are not listed?
Yes. Send your required dimensions and drawing for review. We will assess whether we can supply the requested configuration and identify any details that need clarification.
How do I choose the right pressure vessel head type?
The appropriate pressure vessel head depends on factors such as vessel design, dimensions, application and project requirements. Flat, dished, elliptical and hemispherical heads have different geometries. You can send us your drawings or specifications so our team can review your requirements and discuss a suitable manufacturing option.
CUSTOM PRESSURE VESSEL HEADS
Request a Vessel Head Quote
Share your required head type, stainless steel grade, dimensions, thickness and quantity with us. We manufacture custom pressure vessel heads according to project drawings and specifications, including flat, dished, elliptical and hemispherical heads for different vessel and tank applications.
CUSTOM DIMENSIONS
MULTIPLE HEAD TYPES
PROJECT SUPPORT
