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Precision Machined Slab Gate Valve Seat - High-Quality China Suppliers & Factory for Oil & Gas Industry

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● Essential sealing component specifically designed for slab gate valves in the oil & gas sector.

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● Manufactured from high-strength forged alloy steel, utilizing advanced precision CNC machining for enhanced durability.

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● Incorporates HVOF thermal spray coating, providing superior wear and corrosion resistance ideal for demanding environments.

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● Exhibits exceptional high-pressure resistance and reliable sealing performance under various conditions.

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● Guarantees a long service life in challenging oilfield wellhead operations, designed for rugged usage.

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

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● As a leading factory in China, we offer customizable sizes, materials, and coatings to cater to diverse application requirements.

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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

    1
    Constructed from high-grade forged alloy steel, delivering exceptional structural rigidity, anti-deformation ability and long-term durability under extreme pressure.
    2
    Applied with high-density HVOF thermal spray coating, providing superior resistance to abrasion, corrosion, erosion and extended service life.
    3
    Fabricated with CNC precision machining and fine grinding technology, ensuring high dimensional accuracy and perfect fit with gate assemblies.
    4
    Engineered for harsh oilfield environments, resistant to high pressure, corrosive media, frequent operation and extreme temperature changes.
    5
    Optimized sealing surface design guarantees consistent, leak-proof sealing performance and reliable operational stability.
    6
    Excellent wear resistance reduces downtime and maintenance costs, effectively improving the efficiency of valve assembly operation.
    7
    Fully customizable in dimensions, materials and surface treatments to meet diverse customer requirements and valve models.
    8
    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
    Professionally designed for international shipping compliance and product safety.
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    Inner Layer
    Corrosion-inhibiting packaging film to protect product surfaces during transit.
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    Outer Layer
    Fumigation-free plywood box or heavy-duty carton. Impact-resistant, moisture barrier, and anti-corrosive, guaranteeing the integrity of the goods during maritime transit.

    Product Transportation

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    Sea Freight
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    Road & Rail

    Frequently Asked Questions

    Q What materials are available for the Slab Gate Valve Seat?
    The valve seat is primarily manufactured from high-strength forged alloy steel (4130, 4140) and stainless steel (304, 316). Customized special alloy materials are also available to meet specific working condition requirements. Please contact us with your drawings or samples for tailored solutions.
    Q What surface treatment technologies are applied to the valve seat?
    We adopt industry-leading HVOF (High Velocity Oxygen Fuel) thermal spray coating technology. Available coating materials include cobalt-bonded tungsten carbide (WC/Co), cobalt-chromium-bonded tungsten carbide (WC/CoCr), Stellite 20#/NiCr, Cr₃C₂/NiCr, Ni60/Ni55, and WC/Ni. Coating thickness ranges from 0.03–0.5mm and is customizable.
    Q What working pressures and temperatures can the valve seat handle?
    The Slab Gate Valve Seat supports working pressures from 2,000 psi (2K) up to 20,000 psi (20K), fully meeting international industrial high-pressure standards. It is rated for working temperatures ranging from -46°C to +121°C, making it suitable for a wide range of oilfield and petrochemical environments.
    Q Can the valve seat be customized to match specific valve models or dimensions?
    Yes. We offer full customization services based on customer drawings, samples, and special working condition requirements. Nominal diameters range from 1-13/16" to 13-5/8", covering a comprehensive range of slab gate valve models. Both materials and surface treatments can be tailored to your specifications.
    Q What quality standards does the Slab Gate Valve Seat comply with?
    Our valve seats are manufactured under strict quality control standards, with comprehensive testing procedures applied throughout production. The products are designed to meet API standards and international industrial high-pressure requirements. Each seat undergoes rigorous inspection to ensure dimensional accuracy, surface quality, hardness (HRC75), bonding strength (≥70MPa), and porosity (<1%).
    Q What shipping methods are available, and how is the product packaged for export?
    We support Sea Freight as well as Road & Rail transportation. Products are packaged using standard export packaging: an inner layer of corrosion-inhibiting film and an outer layer of fumigation-free plywood box or heavy-duty carton. The packaging system is impact-resistant, moisture-proof, and anti-corrosive to ensure product integrity throughout maritime and land transit.

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