ASME Elliptical Head

Manufacturer of ASME Elliptical Head

Dingjin is a professional manufacturer specialized in pressure vessel dish end, spherical shell plate and the third classification pressure vessel. We fabricate and inspect as per cited code and additional requirements specified in purchase order. Received good feedback on quality, efficiency and service. In Dalian Dingjin's opinion, what we are making not only pressure vessel parts, but also the armor of life.

Why Choose Us

Our Factory

The company was established in 2000 and covers an area of 10000 square meters. In the past 24 years, we have provided more than 200,000 products to domestic and foreign customers and received good feedback in terms of quality, efficiency and service.

Product Applications

The products are widely used in many other industries, such as electronics, construction, heating, textiles, sewage management, machinery, nuclear power, aerospace, pressure vessels and military industries.

Professional Personnel

The engineers and technicians has been engaged in dish heads fabrication over 10 years. They keep on learning new code and researching advanced work craft to meet the demand of market.

Comprehensive Service

From the beginning of marketing to the ending of sales-after service, we have 9 functional department to assure the product quality and each feedback from clients could be solved quickly and correctly.

Benefits of ASME Elliptical Head

Enhanced Strength

The elliptical shape promotes uniform distribution of stress, minimizing weak points and prolonging the life of the tank.

Higher Pressure Tolerance

These heads can handle higher pressures compared to other designs, making them ideal for demanding applications.

Corrosion Resistance

Typically made from robust materials like stainless steel or carbon steel, they offer excellent resistance to corrosive substances.

Cost-Effective

By preventing failures and extending the lifespan of pressure tanks, ellipsoidal heads prove to be a cost-efficient solution in the long run.

Versatility

Their applicability across a wide range of industries makes them a versatile choice for various storage and processing needs.

Types of ASME Elliptical Head

Oil and Gas Industry
Used in storage tanks for crude oil and refined products, ellipsoidal heads are essential for maintaining safety and pressure integrity.
Chemical Processing
These heads are critical in reactors and pressure vessels where chemicals are processed and stored.
Semi-Elliptical Head (SE)
A semi-elliptical head, often abbreviated as SE, is a specific shape used at the end of a pressure vessel; the head depth is four times the head width. Imagine it as half of an ellipse or a flattened circle.
Water Treatment Plants
Ellipsoidal heads are utilized in pressure tanks for storing and treating water, helping to maintain high standards of quality.
Food And Beverage Industry
In systems that require the storage of pressurized liquid food products, ellipsoidal heads ensure hygiene and safety.

ASME Standard Dished Head for Storage Tank

Application of ASME Elliptical Head

Pressure vessels

Elliptical heads are frequently used as end closures for pressure vessels such as boilers, reactors, and distillation columns. These vessels are used in industries such as oil and gas, chemical processing, and power generation.

Tanks

Elliptical heads can be used in the construction of storage tanks for liquids or gases such as water, fuel, and natural gas. They provide a smooth transition between the tank body and the tank head.

Heat exchangers

Elliptical heads can also be used in the construction of heat exchangers such as shell-and-tube heat exchangers, which are used in a wide range of industries including food processing, pharmaceuticals, and HVAC.

Specification of ASME Elliptical Head

Type	Elliptical Head
Manufacture Standard	As per ASME Ⅷ-1,2023 UG79, &UG81
Inner Diameter	800mm
Min Thk. A/F	8mm
Straight Flange	50mm
Cutting Method	Gas Cutting
Forming Method	Cold Forming
Heat Treatment	No Required
Material Designation	SA 516 Gr.70N
Material Standard	As per ASME II-A,2023
Surface Treatment	Sand Blasting
NDT Method & Acceptance Creteria	No Required

Lead Time

Quantity (pieces)	1 - 100	101 - 1000	1001 - 10000	> 10000
Lead time (days)	7	10	15	To be negotiated

Packaging & Shipping

productcate-674-293

productcate-666-257

productcate-1104-712

Certifications

FAQ

Q: What does a 2:1 elliptical head mean?

A: The Semi-Elliptical (SE) Heads are designed in a 2:1 ratio, or also known as 2:1 head. This means that in this type, the diameter to the depth ratio is 2:1. Meaning that the head depth is four times the head width. This SE head appears like a half ellipse, so its head depth is usually a quarter of its diameter.

Q: What is an elliptical head?

A: Elliptical head is a type of pressure vessel head consisting of a curved surface with a shape that resembles an ellipse or a squashed circle. Download PDF. The elliptical head ( or named ellipsoidal head ) which is a head consisting of two parts: a rotating ellipsoidal sphere and a cylindrical straight section.

Q: What is the geometry of a 2 1 elliptical head?

A: A 2:1 elliptical tank head is fabricated to have a certain shape instead of a particular dish radius or knuckle radius. The dish radius is approximately 90% of the diameter and the knuckle radius is approximately 17% of the diameter. 2:1 elliptical flanged and dished heads are ASME compliant.

Q: What is the difference between dished and elliptical head?

A: An elliptical head is stronger than a dished head, but an elliptical head of the same diameter is somewhat deeper than a dished one and is slightly more difficult to manufacture than a dished head. It consumes more materials and costs a bit more, and the difference in volume remains small.

Q: What is the straight flange length of the ellipsoidal head?

A: The straight flange refers to the straight potion of the head measured from the tangent line to the edge of the head. The industry standard is 1 ½” for ASME F&D's and 2.0” for Ellipticals but most head manufactures can change this to suit your needs.

As one of the leading ASME elliptical head manufacturers in China, we warmly welcome you to buy high quality ASME elliptical head for sale here and get quotation from our factory. For price consultation, contact us.

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