Vessel Head Ends Elliptical Head

Vessel Head Ends Elliptical Head

Product Introduction: Vessel Head Ends - Elliptical Head

Overview

The Elliptical Head, also referred to as the ellipsoidal head, is a crucial component in pressure vessels, designed to provide structural integrity and ensure sealing at the vessel’s end. It consists of two primary sections: a rotating ellipsoidal sphere and a cylindrical straight segment. This head type is widely utilized in industries requiring reliable pressure containment, such as petroleum, pharmaceuticals, and heat exchangers.

Design & Specifications

Unlike other types of dish heads, the elliptical head does not have a defined dish radius or knuckle radius. Instead, it follows specific dimensional ratios to optimize performance. The dish radius is approximately 90% of the diameter, while the knuckle radius is around 17% of the diameter. The commonly used 2:1 elliptical flanged and dished heads are fully compliant with ASME standards.

Material Composition

Elliptical Heads are available in a variety of materials, including:

• Carbon Steel: SA516 Gr60N, Gr70N

• Stainless Steel: SA240 304, 316

• Titanium Alloy: SB256 Gr1, Gr2, Gr5

• Other Alloys: Aluminum, copper, nickel, and nickel alloys

Size & Thickness

• Diameter Range: 89 mm - 13,000 mm (customizable)

• Thickness: 2 mm - 400 mm

• Reduction Ratio: Approximately 10%

Manufacturing Technology

The production of elliptical heads employs advanced techniques to ensure precision and durability. The primary manufacturing methods include:

• Cold Pressing

• Hot Pressing

• Heat Treatment

Application Fields

Elliptical heads are widely used in various industrial sectors, including:

• Pressure Vessels

• Boilers

• Heat Exchangers

• Storage Tanks

• Nuclear Power and Aerospace Industries

• Chemical and Pharmaceutical Processing

Quality Control & Certification

Ensuring superior quality is a top priority in the production of elliptical heads. The manufacturing process follows stringent quality control measures, including:

• Material procurement and testing

• Physical and chemical inspections

• Heat treatment and fine finishing

• Final product inspection and marking

• Packaging and secure shipment

Certifications include ISO9001:2015, ensuring compliance with international quality standards.

Packaging & Delivery

To maintain product integrity during transit, elliptical heads are securely packed in wooden boxes and iron shelves or as per customer specifications. The estimated delivery time for standard and custom orders is approximately 30 days.

Selection Considerations

Choosing the appropriate vessel head involves evaluating multiple factors:

1. Customer Requirements: Custom specifications based on project needs.

2. Chemical Process Demands:

• Elliptical or spherical heads for liquid containment.

• Conical heads for facilitating mass flow in vertical vessels.

3. Pressure Conditions:

• Elliptical heads for medium to low-pressure vessels.

• Spherical heads for high to ultra-high-pressure applications.

4. Stress Distribution Analysis: For vessels requiring large openings, spherical heads may be considered to reduce local stress concentration.

Conclusion

Elliptical vessel heads are an integral part of industrial applications requiring durable and efficient pressure containment solutions. With options available in a variety of materials, sizes, and manufacturing techniques, these heads are customizable to meet the demands of diverse industries while adhering to stringent quality standards. Whether for heat exchangers, boilers, or storage tanks, elliptical heads provide optimal strength, reliability, and compliance with international industry regulations.

Production Process of Heads:
Manufacturer Supplier Dished End Elliptical Caps Stainless Steel Torispherical Dish Head

Picking steel---Cutting---Welding---Heating---Spinning---Stamping---Trimming---Defect detection---QC---Warehousing---Transporttation

Company Information

Haipei Industry is a specialized manufacturer of tank head. With over 30 years of engineered driven expertise ,it is a recognized leader within the tank head industry in china.With unique head forming, fabrication and heat treating capabilities, we offer a diversified range of products. Head diameters is from 3.5" to 393.7'', and Head thickness is from 0.078" to 11.8''. Pressure vessel heads and tank ends are available in a broad range of sizes, shapes, thicknesses and material specifications. 

The main products of the company are: shell plate, elliptical head,torispherical heads,spherical dished heads, flat heads, spherical head, expansion joint, corrugated furnace and non-standard parts, and all kinds of stock heads are available for customers. The products are sold to more than 20 provinces and cities and regions in China and exported to foreign countries.

Advantages

 ♦ Small order advantage, flexibly in dealing with orders;

♦ Quality: Strict control of raw materials and the production process;

♦ Advanced technology,best quality,customer satisfaction,reputation first,good after-service;

♦No cracks , delamination, inclusion ,and other defects;

Our Services

1.No cracks,delamination, inclusion ,and other defects;

2.The warranty time is 6 months,except the wearing parts;

3.We provide the best service based on professional and sincerely attitude.

Product Pictures

Torispherical Head (also called torispherical dish end or torispherical ends) is widely applied for pressure tanks to storage liquids and gasses. The torispherical head consists of a spherical surface, a cylindrical edge of a certain height, and a transition section connecting the above two parts with a radius of curvature smaller than the radius of the sphere. Our asme torispherical head can be made with carbon steel, stainless steel, austenitic and non ferritic metals that can be cold worked. The stress distribution of torispherical dish head is not as uniform as elliptical head, but the manufacturing processing of the torispherical head is easier. However, torispherical dish end is the better option when the elliptical head of the mold processing is difficult. We can fabricate torispherical ends in most popular sizes and thicknesses.

Packaging & Shipping

Manufacturer Supplier Dished End Elliptical Caps Stainless Steel Torispherical Dish Head

6 pieces packed on a pallet for Large Spherical Outdoor Decorated steel firepit sphere

Wooden cases ,wooden pallet plastic bag or as per customers requirement

Contact us

Skype:frieda8368
Whatsapp/Weichat:86-18264838918
Email:[email protected]

FAQ

Q: What’s the information should I provide when inquiry?

A: Thanks for your question. If you have drawings, we will be entirely in accordance with production drawings . If you do not have the drawing, you can tell me the product data. There are several important data, such as material, type of head( We have elliptical head, hemispherical head, dished head, flat head, etc. ),diameter, thickness, special tolerances or requirements. We can do the drawings according to your requirements, and you confirm that the final product drawings.

Q: what are surface treatment of the product?

A:Thanks for your question. For carbon steel products, we sandblasting descaling product surface. For stainless steel products, we use acid to remove surface oil and impurities.

Q: How do you ensure the quality of products?

A: Thanks for your question.Our production staff is trained through national quality department, and obtain the corresponding certificate, with years of production and design experience. Weld must undergo X-ray inspection to ensure that no defects.

Q: Can you help us matching related products?

A: Thanks for your question. Our company also is surrounded by a lot of ancillary businesses, such as flanges, boiler, oil refining equipment, etc. We can help you matching the highest quality products with the lowest prices .