Precision Machined Slab Gate Valve Seat API Standard
Product Description
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.
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
Product 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
● Sea Freight
● Road & Rail

















