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API6A wellhead casing head

Trusted Manufacturer in China | Wellhead System Component

Linkbridge Oil is a professional casing head manufacturer in China, offering API 6A-certified casing heads designed to handle wellhead pressure and support casing strings during drilling and production. Our products are engineered for both standard and customized applications across onshore and offshore oilfields.

API 6A Casing Head Manufacturer in China
API 6A Casing Head Manufacturer in China

Advantages of Linkbridge Oil Casing Head:

API 6A Casing Head Manufacturer in China
API 6A Casing Head Manufacturer in China

  • ✅ High Compatibility: Integrates with a wide range of wellhead equipment

  • ✅ Reliable Sealing: Premium seals and packing systems ensure leak-free operation

  • ✅ Customizable Options: Threaded or welded connections upon request

  • ✅ Ideal for Single and Dual Completions

  • ✅ OEM & ODM Services Available

Technical Specifications:

  • Standard: API Spec 6A

  • Material Class: AA to HH

  • Temperature Rating: K to U

  • Pressure Rating: Up to 15,000 PSI

  • PSL Level: PSL1 to PSL4

  • Applications: Onshore and offshore oil & gas drilling

What Is a Casing Head?

The casing head is a vital component of the wellhead system, installed at the top of the conductor pipe or surface casing. It supports the weight of the casing strings and seals off pressure between casing stages. Typically welded or threaded onto the well’s upper section, the casing head forms the foundation for subsequent wellhead equipment such as tubing heads and Christmas trees.

Linkbridge Oil’s casing heads feature a straight-bore bowl with a 45° landing shoulder. This innovative design reduces wear on sealing areas caused by drilling tools and eliminates problems related to test plug and bowl protector wedging under pressure.

Key Features:

  1. Straight-Bore Design with 45° Landing Shoulder
    Ensures reliable support and sealing, while preventing damage during drilling.

  2. Compatible with Multiple Hanger Types
    Accepts both slip-type and mandrel-type casing hangers for flexible applications.

  3. Enhanced Bowl Protection
    Equipped with additional lock screws to secure casing hangers and protect the bowl.

  4. Three Outlet Types Available

    • Line Pipe Outlets

    • Studded Flanged Outlets

    • Extended Flanged Outlets

  5. Multiple Bottom Connection Options

    • Slip-on weld

    • Slip-on weld with O-ring

    • Threaded

    • Sure Lock connection

  6. API Spec 6A Certified
    Manufactured to meet strict international standards for oilfield performance and safety.