Your Professional Head Plate Supplier
Sunlion Piping Engineering Co., Ltd. is a global supplier of piping systems and structural steel modules for energy, petrochemical, offshore, nuclear, and heavy industrial projects. With over 20 years of international project experience, Sunlion delivers vertically integrated solutions from raw materials to finished modules. The company serves leading EPC contractors and end users worldwide, providing compliant products, modular fabrication, inspection coordination, and OEM/ODM customization to support efficient and reliable project execution.
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![Hemispherical Head Plate]()
Hemispherical Head PlateA Hemispherical Head is a critical pressure-bearing component used to seal the end of a pressure vessel or pipeline. Head Plate also It also available in various geometric shapes, including
why choose us
Quality Control
All products are manufactured to recognized standards such as ASME, DIN, GB, and JIS and undergo coordinated inspection and testing by third-party organizations such as SGS to ensure traceability and consistent quality.
Customization Services
We offer OEM and ODM services, tailored to project requirements, including material grades, dimensional tolerances, marking systems, packaging methods, and documentation, to meet both standardized and project-specific engineering needs.
Integrated Supply Chain
We manage the entire supply chain, from steel pipe sourcing to prefabricated piping and structural modules. This integrated model simplifies procurement coordination, improves schedule control efficiency, and minimizes interface risks between multiple suppliers in complex projects.
Sales Markets
With over two decades of experience executing international projects, we have delivered materials and modules to projects in the Middle East, Australia, the Americas, Africa, and Europe, supporting EPC general contractors under various technical standards and logistical conditions.
Specification
|
Specification Item |
Details |
|
Product Name |
Head Plate |
|
Type |
Pressure vessel head |
|
Material |
Carbon steel, stainless steel, alloy steel |
|
Standards |
ASME U, GB |
|
Diameter |
300 – 12000 mm |
|
Thickness |
4 – 200 mm |
|
Forming Method |
Hot forming or cold forming |
|
Surface Condition |
Bare or pickled |
|
Edge Preparation |
Weld bevel as required |
|
Applications |
Pressure vessels, tanks, boilers, reactors |
Benefits of Head Plate
Corrosion Resistance: Head plates are built from stainless steel, so our Head protect rust and chemical corrosion. This increases their lifespan in harsh conditions like chemical plants. Their durability reduces replacement costs. They make sure trustable performance over time. This makes them best for long term in use.
High Strength: Head plates are able to be in functional in high pressures and make sure safety in major applications. Their strong reliable construction supports Vessel in oil and gas industries. They reduce the risk of failure under stress. This increases operational reliability. They are built for demanding conditions.
Precision Fabrication: Head plates are designed and built with accurate dimensions, which simplify their installation process. This reduces project timelines and labor costs in industrial setups. Their prompt fit makes sure leak-free performance. And hence they are best for complex vessel designs. This improves overall system efficiency.
Customizable Designs: We offer specific designed sizes and shapes to meet and match clients specific project needs and demands. This makes sure compatibility with various vessel configurations in power plants. Our flexibility supports unique industrial requirements.
Cost-Effective: Head plate reduce maintenance and replacement costs due to their durability. Their long lifespan offers a high return on investment. They minimize downtime in critical operations. This makes them economical for industries. They ensure long-term savings.
Types of Head Plate
Flat Heads
Flat heads, also known as flat plates or blind plates, are the simplest type of pressure vessel heads. They are flat and provide a straightforward sealing solution for pressure vessels. Flat heads are commonly used in small vessels or as temporary covers during maintenance and inspection procedures. They are easy to manufacture and install, making them cost-effective for certain applications. Flat heads are not very strong, and they are only used for low-pressure applications.
Hemispherical Heads
Hemispherical heads are semi-spherical in shape and provide excellent structural strength. They distribute pressure evenly, making them suitable for high-pressure applications. Hemispherical heads are often used in storage tanks, boilers, and other vessels that require resistance against internal pressure. Their curved shape allows for efficient distribution of stress, reducing the risk of deformation or failure. It is the strongest type of pressure vessel head.
Ellipsoidal Heads
Ellipsoidal heads, also known as elliptical heads or semi-elliptical heads, have a more elongated shape compared to hemispherical heads. They offer good pressure distribution and structural integrity, making them a popular choice for pressure vessels. The elliptical shape of these heads allows for increased internal volume while maintaining adequate strength. Ellipsoidal heads are widely used in tanks, reactors, and pressure vessels where space and weight considerations are important. It is stronger than a flat head, but not as strong as a torispherical head. Ellipsoidal pressure vessel heads are used for a variety of pressure applications, but they are most common in moderate-pressure applications.
Torispherical Heads
Torispherical heads, also referred to as flanged and dished heads, are a common choice for a wide range of pressure vessel applications. These heads have a dish shape with a flanged edge for connecting to the vessel body. Torispherical heads provide excellent pressure resistance, uniform stress distribution, and increased volume capacity compared to ellipsoidal heads. They are versatile and can be fabricated with different knuckle and crown radius ratios to meet specific design requirements. Torispherical heads are used for a variety of pressure applications, but they are most common in high-pressure applications. The flanged and dished head usually requires more thickness than the matching cylinder.
Conical Heads
Conical heads have a conical shape. They are often used in vessels that require a smooth transition between cylindrical sections and a smaller opening. Conical heads provide strength and structural stability, particularly in applications where the flow of contents needs to be directed or channeled. These heads are commonly found in separators, cone-bottom tanks, and hoppers.
Head Plate Production Process
Design Selection: The process begins with choosing the appropriate head shape such as hemispherical, elliptical, or torispherical based on pressure requirements, material compatibility, and space constraints. Each design offers different strength and manufacturing considerations.
Material Preparation: Materials like carbon steel, stainless steel, or alloys are selected for their strength, corrosion resistance, and temperature tolerance. These materials are then cut and shaped according to specifications.
Forming and Shaping: The prepared materials are formed into the desired shape using processes like stamping, spinning, or forging. Precision in shaping ensures proper fit and performance under pressure.
Welding and Assembly: The formed heads are welded to the vessel shell, ensuring airtight and pressure-resistant joints. Quality control measures, such as non-destructive testing, verify weld integrity.
Inspection and Testing: Final inspections include pressure testing, visual checks, and dimensional verification to ensure compliance with safety standards and design specifications.
Applications of Head Plate
Oil & Gas
They contain crude oil, natural gas, or refined products. Their robust design withstands extreme pressures and temperatures, ensuring safety during extraction and processing.
Chemical Processing
Heads in reactors and storage tanks prevent leaks and withstand corrosive substances, maintaining process integrity.
Power Generation
Used in boilers and steam generators, they handle high-pressure steam, contributing to efficient energy production.
Food & Beverage
Pressure vessels with specialized heads store and process liquids like milk, juice, or carbonated drinks under pressure, ensuring product quality and safety.
Customization Services
We offer customized head plate manufacturing solutions to meet your needs. Key customization options include:
|
Material Grades |
Customizable |
|
Thickness |
Customizable |
|
Diameter |
Customizable |
|
Dimensional Tolerances |
Customizable |
|
Surface Finish |
Customizable |
|
Heat Treatment |
Customizable |
|
Our customization capabilities extend beyond the options listed above. Should you have additional requirements, we are able to make flexible adjustments in accordance with your specific needs and circumstances. |
|
Packaging and Shipping
|
Packaging |
Steel frame or wooden pallet fixing |
|
Transportation methods |
Road transport, rail transport, sea transport |
FAQ
As one of the most professional head plate manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to wholesale high-grade head plate at competitive price from our factory. Contact us for more details.
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