Hemispherical Head

Overview

Hemispherical Heads are high-strength pressure vessel components designed to close tanks, boilers, and industrial storage vessels. The half-sphere geometry provides uniform stress distribution, making them ideal for high-pressure applications where durability and safety are critical.

Manufactured with precision and compliance to international standards, our Hemispherical Heads deliver long-lasting performance, structural integrity, and operational reliability in demanding industrial environments worldwide.

Product Features

  • Uniform Stress Handling: Half-sphere shape distributes internal pressure evenly, reducing localized stress.

  • High-Quality Materials: Available in Carbon Steel, Stainless Steel, and Alloy Steel, providing excellent corrosion resistance and mechanical strength.

  • Wide Size Range: DN15 – DN4000 (custom sizes available).

  • Forming Methods: Cold forming or hot forming to achieve precise thickness and dimensions.

  • Custom Fabrication: Manufactured per client drawings or project specifications.

Standards Compliance

Our Hemispherical Heads are produced in accordance with global standards:

  • ASME Section VIII – Pressure vessel heads

  • EN 13445 – European unfired pressure vessel standard

  • DIN / JIS – Optional for European & Japanese projects

  • GOST 14249 / GOST 15150 – Russian standards for pressure vessel heads

  • Custom Standards – Available upon request

Compliance ensures safe operation under high-pressure industrial conditions.

Materials & Grades

  • Carbon Steel: ASTM A516 Gr.70 / Gr.60

  • Stainless Steel: ASTM A240 WP304 / WP316

  • Alloy Steel: ASTM A387 / high-temperature or high-pressure grades

Carefully selected materials provide mechanical strength, ductility, and long-term reliability.

Applications

Hemispherical Heads are widely used in:

  • High-pressure pressure vessels and boilers

  • Chemical, petrochemical, and oil & gas processing plants

  • Power generation and water treatment industries

  • Any application requiring uniform stress distribution and high structural integrity

Why Choose Our Hemispherical Heads

  • Precision Manufacturing: High dimensional accuracy, smooth surface finish, consistent quality

  • Standards Compliance: ASME, EN, DIN/JIS, GOST, and custom project standards

  • Material Excellence: Carbon Steel, Stainless Steel, Alloy Steel

  • Customizable Options: Sizes, thicknesses, and specifications according to drawings

  • Global Export Experience: Trusted supplier for B2B customers worldwide

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