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Precision Machined Slab Gate Valve Seat - API Standard from China Suppliers & Factory for Oil & Gas Industry

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● High-performance sealing components specifically designed for slab gate valves in the oil & gas industry, produced by leading suppliers in China.

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● Manufactured from high-strength forged alloy steel, utilizing precision CNC machining techniques to ensure durability and reliability.

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● Features HVOF thermal spray coating, providing exceptional wear and corrosion resistance, vital for challenging environments.

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● Engineered for outstanding high-pressure resistance and stable sealing performance, making it ideal for critical applications.

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● Guarantees a long service life, even in harsh oilfield wellhead conditions, ensuring operational efficiency.

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● Perfectly suited for drilling equipment, Christmas trees, and pipeline transmission systems, meeting industry demands.

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● Customizable options for sizes, materials, and coatings available from our factory to cater to diverse application needs.

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    Product Description

    The Slab Gate Valve Seat is an indispensable core sealing component exclusively designed for slab gate valves, which are widely utilized in critical oil and gas field applications such as wellhead equipment, Christmas trees, drilling and production systems, high-pressure fluid transmission pipelines, and petrochemical processing facilities.

    Manufactured from high-performance forged alloy steel as the substrate, our valve seats undergo a series of sophisticated production processes including precision forging, CNC ultra-precision machining, and fine surface grinding to ensure extremely high dimensional accuracy and surface smoothness.

    Adopting industry-leading HVOF (High Velocity Oxygen Fuel) thermal spray coating technology, a dense, high-hardness and wear-resistant protective layer is firmly bonded to the surface, which greatly enhances the product's resistance to abrasion, corrosion, scouring and high pressure.

    Engineered to adapt to harsh and complex working conditions, the valve seat maintains stable and reliable sealing performance even under long-term operation of high pressure, corrosive media, frequent switching and mechanical wear, effectively preventing fluid leakage and ensuring the safe and stable operation of the entire valve assembly.

    With excellent durability and long service life, it significantly reduces the frequency of component replacement and equipment maintenance costs, making it a high-quality matching spare part for high-performance slab gate valves in the oil and gas industry. Customized processing services are available according to customer drawings, samples and special working condition requirements.

    Precision Machined Slab Gate Valve Seat API Standard (1)
    Precision Machined Slab Gate Valve Seat API Standard (2)
    Precision Machined Slab Gate Valve Seat API Standard (3)
    Product Specifications
    Type Slab Gate Valve Seat
    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) (meets international industrial high-pressure standards)
    Media Crude oil/ Natural gas/ Oilfield wastewater/ Mud/ Water/ Oil-gas mixtures
    Material High-strength forged alloy steel (4130, 4140), stainless steel (304, 316), customized special alloy materials
    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)
    Application Environment High-pressure, high-wear, corrosion-prone oilfield and petrochemical harsh working conditions
    Product Features
    Constructed from high-grade forged alloy steel, delivering exceptional structural rigidity, anti-deformation ability and long-term durability under extreme pressure.
    Applied with high-density HVOF thermal spray coating, providing superior resistance to abrasion, corrosion, erosion and extended service life.
    Fabricated with CNC precision machining and fine grinding technology, ensuring high dimensional accuracy and perfect fit with gate assemblies.
    Engineered for harsh oilfield environments, resistant to high pressure, corrosive media, frequent operation and extreme temperature changes.
    Optimized sealing surface design guarantees consistent, leak-proof sealing performance and reliable operational stability.
    Excellent wear resistance reduces downtime and maintenance costs, effectively improving the efficiency of valve assembly operation.
    Fully customizable in dimensions, materials and surface treatments to meet diverse customer requirements and valve models.
    Manufactured under strict quality control standards, with comprehensive testing to ensure stable and reliable product performance.
    Precision Machined Slab Gate Valve Seat API Standard (9)
    Precision Machined Slab Gate Valve Seat API Standard (10)
    Precision Machined Slab Gate Valve Seat API Standard (11)
    Product Packaging
    📦 Standard Export Packaging

    Inner Layer: Corrosion-inhibiting packaging film.

    Outer Layer: Fumigation-free plywood box or heavy-duty carton.

    Protection: The packaging system is designed to be impact-resistant, moisture barrier, and anti-corrosive, guaranteeing the integrity of the goods during maritime transit.

    Product Transportation
    🚚 Shipping & Transportation
    • Sea Freight
    • 🚘 Road & Rail
    Frequently Asked Questions
    Q What is a Slab Gate Valve Seat and what is it used for?
    The Slab Gate Valve Seat is a core sealing component designed exclusively for slab gate valves. It is widely used in oil and gas field applications including wellhead equipment, Christmas trees, drilling and production systems, high-pressure fluid transmission pipelines, and petrochemical processing facilities to ensure reliable fluid sealing and prevent leakage.
    Q What materials are available for the Slab Gate Valve Seat?
    The valve seat is manufactured from high-strength forged alloy steel (4130, 4140) and stainless steel (304, 316) as standard options. Customized special alloy materials are also available to meet specific working condition requirements upon request.
    Q What surface treatment technology is applied and what are its benefits?
    The valve seat uses industry-leading HVOF (High Velocity Oxygen Fuel) thermal spray coating technology. This creates a dense, high-hardness protective layer with hardness up to HRC75, bonding strength ≥70MPa, and porosity <1%, providing superior resistance to abrasion, corrosion, erosion, and high-pressure scouring for extended service life.
    Q What pressure ratings and nominal diameters are supported?
    The valve seat supports working pressures from 2,000 psi (2K) up to 20,000 psi (20K), meeting international industrial high-pressure standards. Available nominal diameters range from 1-13/16" to 13-5/8", covering a wide variety of slab gate valve models used in the oil and gas industry.
    Q Can the Slab Gate Valve Seat be customized to specific requirements?
    Yes. Customized processing services are available according to customer drawings, samples, and special working condition requirements. Dimensions, materials, surface treatment types, and coating thickness (0.03–0.5mm) are all fully customizable to match diverse valve models and application environments.
    Q How is the product packaged and shipped to ensure safe delivery?
    Each valve seat is packaged with an inner corrosion-inhibiting film and an outer fumigation-free plywood box or heavy-duty carton. The packaging is impact-resistant, moisture-proof, and anti-corrosive to guarantee product integrity during maritime transit. Shipping is available via sea freight as well as road and rail transport.

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