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HVOF Coated FC Gate Valve for Oilfield Applications - High-Strength Alloy Steel by China Suppliers & Factory

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● Manufactured in China, adhering to API 6A standards, our precision-machined gate valves ensure optimal performance.

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● Crafted from high-strength alloy steel and coated with HVOF thermal spray, these valves offer exceptional durability.

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● Engineered for excellent wear, erosion, and corrosion resistance, making them ideal for challenging environments.

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● Our valves provide stable sealing and a long service life, specifically designed for efficient oilfield operations, making us a reliable supplier in the industry.

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● As a leading factory, we are committed to delivering high-quality products that meet the rigorous demands of our customers.

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    Contact us
    Product Details

    Product Description

    FC full bore gate is a critical sealing component exclusively designed for API 6A standard oilfield gate valves. Adopting a slab-type full bore structure, it features a consistent flow passage with no diameter reduction, perfectly matching full bore valve cavities to enable unobstructed pipeline pigging and minimal fluid resistance.

    Forged integrally from high-strength alloy steel (AISI 4130/4140) or stainless steel, the gate boasts a compact, defect-free structure with exceptional mechanical strength and high pressure resistance (up to 20,000PSI). Its double-sided sealing surfaces are enhanced with HVOF thermal spray coating (WC-Co, Ni-based WC, Co-Cr-W alloy), delivering ultra-high hardness (HRC 75), superior wear resistance, erosion resistance and corrosion resistance.

    Processed by CNC precision machining, the sealing surfaces feature ultra-high flatness and finish, ensuring reliable two-way metal hard sealing without leakage under harsh working conditions. Compliant with API 6A temperature grades (K/L/P/U) and performance levels (PR1/PR2), it offers excellent interchangeability, long service life and strong adaptability to onshore/offshore oilfield wellheads, Christmas trees and high-pressure manifolds.

    HVOF Coated FC Gate for Oilfield Applications Detail (1)
    HVOF Coated FC Gate for Oilfield Applications Detail (2)
    HVOF Coated FC Gate for Oilfield Applications Detail (3)

    Product Specifications

    Type FC Full Bore Gate
    Nominal Diameter 1-13/16"/ 2-1/16"/ 2-9/16"/ 3-1/16"/ 3-1/8"/ 4-1/16"/ 5-1/8"/ 6-5/8"/ 7-1/16"/ 9"/ 11"/ 13-5/8"
    Working Pressure 2000psi(2K)/ 3000psi(3K)/ 5000psi(5K)/ 10000psi(10K)/ 15000psi(15K)/ 20000psi(20K)
    Media Crude oil/ Natural gas/ Oilfield wastewater/ Mud/ Water/ Oil-gas mixtures
    Material AISI 4130/ AISI 4140/ 316L/ 2205 Dual-phase Steel/ 2507 Dual-phase Steel
    Working Temperature -46℃ ~ +121℃
    Hardness HRC75
    Bonding Strength ≥70MPa
    Porosity ＜1%
    Surface Treatment Supersonic spraying of cobalt-bonded tungsten carbide (WC/Co) / cobalt-chromium-bonded tungsten carbide (WC/CoCr) / cobalt-chromium tungsten alloy (Stellite 20#/NiCr) / nickel-chromium-bonded chromium carbide (Cr₃C₂/NiCr) / nickel-based alloy (Ni60/Ni55) / nickel-based tungsten carbide (WC/Ni)
    Coating Thickness 0.03–0.5mm (Customizable)

    Product Features

    Optimized FC full bore structure with flexible design, ensuring two-way tight sealing and smooth switching.
    Precision forged integral structure complying with API 6A standard, featuring high strength and strong pressure resistance.
    HVOF thermal spray coating with ultra-high hardness, excellent wear, erosion and corrosion resistance.
    CNC precision machined sealing surface with high flatness, stable sealing performance and long service life.
    Strong adaptability to harsh oilfield environments, effectively reducing equipment maintenance frequency.
    HVOF Coated FC Gate for Oilfield Applications Detail (4)
    HVOF Coated FC Gate for Oilfield Applications Detail (5)
    HVOF Coated FC Gate for Oilfield Applications (4)

    Product Packaging

    Standard Export Packaging
    • Inner: Anti-rust protective bag
    • Outer: Fumigation-free plywood box or carton
    • Shockproof, damp-proof and rust-resistant, guaranteeing safe sea transportation.

    Product Transportation

    Ocean Freight
    Overland & Rail Freight

    Frequently Asked Questions

    Q What is an FC full bore gate and what is it used for?
    The FC full bore gate is a critical sealing component designed exclusively for API 6A standard oilfield gate valves. It adopts a slab-type full bore structure with a consistent flow passage and no diameter reduction, making it ideal for pipeline pigging operations, wellheads, Christmas trees, and high-pressure manifolds in onshore and offshore oilfields.
    Q What materials are available for the FC full bore gate?
    The FC full bore gate is available in a range of high-performance materials including AISI 4130, AISI 4140, 316L stainless steel, 2205 Dual-phase Steel, and 2507 Dual-phase Steel, allowing selection based on specific media and environmental requirements.
    Q What is the maximum working pressure the FC gate can handle?
    The FC full bore gate supports working pressures from 2,000 PSI (2K) up to 20,000 PSI (20K), covering all standard API 6A pressure ratings including 2K, 3K, 5K, 10K, 15K, and 20K, making it suitable for a wide range of high-pressure oilfield applications.
    Q What HVOF coating options are available and what are the benefits?
    Multiple HVOF thermal spray coating options are available, including WC/Co, WC/CoCr, Stellite 20#/NiCr, Cr₃C₂/NiCr, Ni60/Ni55, and WC/Ni. These coatings deliver ultra-high hardness (HRC 75), porosity below 1%, bonding strength ≥70 MPa, and outstanding resistance to wear, erosion, and corrosion under extreme operating conditions.
    Q What API 6A compliance standards does the FC full bore gate meet?
    The FC full bore gate is fully compliant with API 6A temperature grades K, L, P, and U, as well as performance levels PR1 and PR2. This ensures excellent interchangeability and reliability across a broad range of oilfield operating environments, from standard onshore wellheads to demanding offshore applications.
    Q What packaging and shipping methods are used for the FC full bore gate?
    Products are shipped in standard export packaging consisting of an inner anti-rust protective bag and an outer fumigation-free plywood box or carton. The packaging is shockproof, damp-proof, and rust-resistant to ensure safe delivery. Available shipping methods include Ocean Freight and Overland & Rail Freight.

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