Corrosion Resistant Valve Gate for Wellhead - China Suppliers & Factory for Oilfield Applications
Product Description
Slab valve gates serve as the core sealing and switching components dedicated to slab gate valves, which are extensively applied in critical oil & gas extraction scenarios including oilfield wellhead devices, Christmas trees, drilling and production systems, pipeline transmission equipment, and high-pressure fluid control units.
Adopting high-quality alloy steel as the base material, our valve gates undergo strict forging, precision CNC machining and advanced surface treatment processes. Equipped with professional HVOF (High Velocity Oxygen Fuel) thermal spray coating technology, they form a high-density, high-hardness protective layer on the surface.
These valve gates are specially designed to adapt to harsh working conditions such as ultra-high pressure, abrasive corrosion, frequent switching and extreme temperature differences. They maintain stable sealing performance and structural integrity during long-term operation, effectively ensuring the safety, continuity and efficiency of oil and gas production and transportation systems, and are ideal matching parts for high-performance slab gate valves.
Adopting high-quality alloy steel as the base material, our valve gates undergo strict forging, precision CNC machining and advanced surface treatment processes. Equipped with professional HVOF (High Velocity Oxygen Fuel) thermal spray coating technology, they form a high-density, high-hardness protective layer on the surface.
These valve gates are specially designed to adapt to harsh working conditions such as ultra-high pressure, abrasive corrosion, frequent switching and extreme temperature differences. They maintain stable sealing performance and structural integrity during long-term operation, effectively ensuring the safety, continuity and efficiency of oil and gas production and transportation systems, and are ideal matching parts for high-performance slab gate valves.
Product Specifications
| Type | Slab Valve 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, oil-gas mixture, corrosive petroleum fluid, high-pressure water |
| Material | High-strength alloy steel (4130, 4140), stainless steel (304, 316), customized alloy materials available |
| 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) |
| Processing Technology | Precision forging + CNC precision machining + HVOF coating + Fine grinding |
| Machining Tolerance | Comply with international industrial precision standards, ensuring perfect assembly with valve bodies |
| Matching Valves | Specialized for slab gate valves, wellhead valves, oil extraction tree valves and pipeline control valves |
Product Features
1. High-Strength Base Material
Selected high-quality alloy steel with excellent tensile strength, impact resistance and structural stability, not easy to deform under high pressure.
2. Premium HVOF Coating
Advanced thermal spray technology endows the surface with ultra-high hardness, outstanding wear resistance and corrosion resistance, far superior to traditional surface treatment.
3. Precision Machining Accuracy
CNC precision machining and fine grinding ensure flatness, smoothness and dimensional accuracy, achieving zero-leakage sealing effect.
4. Extreme Working Condition Adaptability
Perfectly resist high pressure, abrasive wear, chemical corrosion and frequent switching, suitable for harsh oilfield and petrochemical environments.
5. Long Service Life
Excellent wear resistance and stability greatly reduce replacement frequency, lower equipment maintenance costs and improve operational efficiency.
6. Perfect Sealing Performance
Optimized structural design and high-precision surface guarantee stable and reliable sealing during long-term use.
7. Customized Service
Support customized production of various sizes, materials and coatings according to customer drawings, samples and working condition requirements.
8. Strict Quality Control
Each product undergoes professional inspection of dimensions, hardness, coating adhesion and sealing performance to ensure stable and reliable quality.
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
Logistics & Shipping
- Sea Freight
- Land & Rail Transportation
Frequently Asked Questions
Q
What is a slab valve gate and what is it used for?
A slab valve gate is the core sealing and switching component inside a slab gate valve. It is widely used in oilfield wellhead devices, Christmas trees, drilling and production systems, pipeline transmission equipment, and high-pressure fluid control units in the oil & gas industry.
Q
What materials are available for the slab valve gate?
Our slab valve gates are available in high-strength alloy steel (4130, 4140) and stainless steel (304, 316). Customized alloy materials can also be provided based on specific working condition requirements.
Q
What surface treatment technology is applied to the valve gate?
We use advanced HVOF (High Velocity Oxygen Fuel) thermal spray coating technology. Available coating materials include WC/Co, WC/CoCr, Stellite 20#/NiCr, Cr₃C₂/NiCr, Ni60/Ni55, and WC/Ni, forming a high-density, high-hardness protective layer with porosity less than 1% and hardness up to HRC75.
Q
What pressure ratings and sizes are available?
Working pressures range from 2,000 psi (2K) up to 20,000 psi (20K). Nominal diameters available include 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", and 13-5/8". Custom sizes are also supported.
Q
Can you provide customized slab valve gates according to our drawings or samples?
Yes. We fully support customized production based on customer-supplied drawings, samples, or specific working condition requirements. This includes customization of dimensions, base materials, coating types, and coating thickness (0.03–0.5mm range).
Q
How are the slab valve gates packaged and shipped?
Each valve gate is packed with an anti-rust protective bag as inner packaging, placed inside a fumigation-free plywood box or carton as outer packaging. The packaging is shockproof, damp-proof and rust-resistant to ensure safe delivery. We support sea freight as well as land and rail transportation.