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OEM ODM API 6D Gate Valves

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Fangyuan Valve Group Co., Ltd.
ABOUT US
Fangyuan Valve Group Co., Ltd. (commonly known as FYV) is a well-established international China API 6D Gate Valves Manufacturer and Sale API 6D Gate Valves Factory. For over four decades, FYV has been delivering reliable solutions for critical applications across a wide range of industries, including Oil & Gas, LNG, Refineries, Petrochemical, Pipelines, Chemical, Nuclear Plants, and Power Generation.
With three advanced manufacturing facilities located in the city of Wenzhou, FYV operates over 1,180,000 square feet of production space. Equipped with modern machinery and technology, these facilities enable us to respond efficiently to the evolving needs of the global market.
Certificate
  • API-6FA-150lb-NPS16-and-above-01

    API-6FA-150lb-NPS16-and-above-01

  • API-6FA-150lb-NPS16-and-above-02

    API-6FA-150lb-NPS16-and-above-02

  • API-6FA-300lb-NPS16-and-above-01

    API-6FA-300lb-NPS16-and-above-01

  • API-6FA-300lb-NPS16-and-above-02

    API-6FA-300lb-NPS16-and-above-02

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API 6D Gate Valves Industry Knowledge Extension

What is an API Valve?

An API valve refers to valves manufactured according to standards set by the American Petroleum Institute (API). These standards ensure that valves meet specific requirements for materials, design, testing, and performance in industrial applications. API valves are widely used in sectors such as oil and gas, petrochemical, chemical processing, and pipeline transportation, where operational reliability and safety are essential.

API standards cover different types of valves, including gate valves, ball valves, check valves, and globe valves. Compliance with API standards ensures that a valve can withstand operational pressures, temperatures, and fluid types specified for a particular industrial process.

API 6D Valve: Key Features and Applications

The API6D valve is a subset of API valves designed specifically for pipeline transportation systems. The API 6D standard focuses on pipeline valves that control the flow of oil, gas, and other fluids in transmission lines. The main requirements of an API6D valve include:

  • Design and Material Compliance: Valves must be designed with materials that meet the required mechanical and chemical properties. Common materials include carbon steel, stainless steel, and alloy steel.
  • Pressure and Temperature Ratings: API6D valves are rated according to pressure classes and can operate within defined temperature ranges, ensuring suitability for pipeline conditions.
  • Testing and Verification: API6D requires rigorous testing, including shell tests and seat tests, to verify leak-tightness and structural integrity.
  • Documentation and Traceability: Each valve must have detailed documentation covering material certifications, manufacturing processes, and testing results to ensure traceability and compliance.

Applications for API6D valves include crude oil pipelines, natural gas transmission pipelines, and LNG transfer systems. The valves provide control and shutoff capabilities while maintaining system integrity under continuous flow conditions.

API 6D Gate Valves: Function and Advantages

A gate valve is a type of valve that opens by lifting a barrier, or gate, out of the fluid path. When used as an API 6D gate valve, it is designed for full compliance with pipeline standards. Gate valves are typically used in applications that require:

  • On/Off Control: Gate valves are primarily used to start or stop flow rather than regulate it.
  • Low Pressure Drop: When fully open, the valve provides minimal resistance to fluid flow.
  • Bi-Directional Flow: Many API 6D gate valves allow flow in both directions without affecting performance.

API 6D gate valves are manufactured to meet strict dimensional and testing requirements, ensuring proper fit within pipeline systems. These valves are suitable for high-pressure applications and can be equipped with manual, electric, or pneumatic actuators depending on operational needs.

Material Considerations for API Valves

Materials used for API valves play a crucial role in operational safety and longevity. Carbon steel, stainless steel, and alloy steel are commonly used depending on pressure and temperature conditions. Material selection considers factors such as corrosion resistance, mechanical strength, and compatibility with the transported fluid. In addition, API6D valves often require heat treatment and precision machining to meet exacting standards.

Testing and Quality Assurance

Testing is a critical component of API valve manufacturing. Standard tests include:

  • Shell Test: Verifies the integrity of the valve body under pressure.
  • Seat Test: Confirms the sealing capability of the valve under operating conditions.
  • Functional Test: Checks valve operation, including opening and closing mechanisms.

Each valve is documented with test reports to provide traceable records for quality assurance and compliance verification.

Applications Across Industries

API valves, including API6D gate valves, are widely used in industrial sectors such as:

  • Oil and Gas Pipelines: Transmission and distribution pipelines require reliable valve control to manage flow and pressure.
  • Petrochemical and Chemical Plants: Valves control process fluids under varying temperatures and pressures.
  • Power Generation: Valves are used in feedwater, cooling, and steam systems.
  • LNG Facilities: Cryogenic conditions require valves with precise material selection and testing.

The use of standardized API valves ensures that operational requirements are met consistently across industries, improving safety and efficiency.