High Pressure Wear Resistant Valve Gate for Oilfield - China Suppliers & Factory Offering Premium Solutions
Product Description
API 6A standard valve gate is precision-engineered for gate valves in oilfield wellhead and Christmas tree systems. Forged from high-strength alloy steel or stainless steel, it features advanced thermal spray coating (cobalt-coated tungsten carbide, nickel-based tungsten carbide, cobalt-chromium tungsten alloy) for exceptional wear resistance, erosion resistance and corrosion resistance. With precision machining and optimized sealing structure, it ensures tight sealing performance under high pressure (2K-20K psi) and extreme temperature conditions. Compliant with API 6A specifications, available in PR1 and PR2 performance levels, it delivers stable operation, long service life and reliable compatibility for harsh oil and gas exploration environments.
Product Specifications
| Nominal Diameter | 1-1/16"/ 2-1/16"/ 2-9/16"/ 3-1/8"/ 3-1/2"/ 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) |
Product Features
1. Ultra-high Coating Adhesion:The coating is metallurgically bonded to the substrate, ensuring a strong and non-detachable bond, suitable for high-pressure impact conditions.
2. Extremely Dense Coating:Extremely low porosity effectively blocks corrosive media, resisting cavitation and erosion.
3. Ultra-high Hardness:Surface hardness reaches HRC75, with wear resistance far exceeding ordinary welding/electroplating processes.
4. Excellent Corrosion Resistance:Suitable for harsh oilfield media containing sulfur, chlorine, acids, and alkalis, meeting NACE MR0175 standards.
5. High Dimensional Accuracy:Precision grinding after spraying results in a high degree of surface flatness and stable sealing performance.
6. Extra-long Service Life:Service life is 3-5 times longer than conventional valve gates, significantly reducing maintenance costs.
7. Suitable for Harsh Conditions:Perfectly matches API 6A standard valves, meeting the needs of high-pressure, high-temperature scenarios.
Logistics Information
Product Packaging
Standard export packaging
Inner: Rust-proof bag
Outer: Fumigation-free plywood case / Carton
Safe for sea transportation, shockproof & rustproof
Inner: Rust-proof bag
Outer: Fumigation-free plywood case / Carton
Safe for sea transportation, shockproof & rustproof
Product Transportation
International Sea Transportation
Land / Railway Transportation
Land / Railway Transportation
Frequently Asked Questions
What standards do these valve gates comply with?
All our valve gates are fully compliant with API 6A specifications and available in PR1 and PR2 performance levels.
What is the maximum working pressure supported?
Our valve gates are designed to operate under high-pressure conditions ranging from 2,000 psi (2K) up to 20,000 psi (20K).
What makes the coating superior to standard treatments?
We use supersonic spraying for thermal coatings like tungsten carbide, reaching a hardness of HRC75. This provides 3-5 times longer service life than conventional welding or electroplating.
Are these gates suitable for sour gas (H2S) environments?
Yes, our materials and coatings are designed to meet NACE MR0175 standards, making them ideal for media containing sulfur, chlorine, and acids.
What materials are available for the gate substrate?
Commonly used materials include AISI 4130, AISI 4140, 316L stainless steel, and 2205 or 2507 dual-phase steels for extreme corrosion resistance.
How is the product protected during international shipping?
We use rust-proof inner bags and fumigation-free plywood cases or cartons to ensure the product remains shockproof and rustproof during sea or land transport.