Engineered for extreme pressure and high-temperature environments, the GOST Integral Forged A105 Welded Gate Valve delivers unmatched structural integrity and reliable flow isolation.
Manufactured from a single piece of premium A105 carbon steel forging, this valve eliminates potential leak paths by removing body welds, ensuring superior strength and safety. Designed strictly to GOST (Russian National Standard) specifications, it is specifically built to withstand severe working conditions. Featuring standard welded end connections (Socket Weld or Butt Weld), this integral forged gate valve guarantees leak-tight sealing and seamless integration into critical high-pressure oil, natural gas, and steam piping systems.
Key Features & Benefits
• Integral Forged Construction: Crafted from a single piece of A105 carbon steel forging, eliminating body welds to reduce potential leak paths and significantly enhance overall structural strength and reliability.
• GOST Standard Compliance: Designed and manufactured strictly to GOST standards, ensuring perfect dimensional compatibility and reliable performance in Russian and CIS regional industrial infrastructure.
• High-Pressure A105 Material: Utilizes premium ASTM A105 forged carbon steel, offering excellent high-temperature strength, creep resistance, and impact toughness under extreme pressure conditions.
• Welded End Connections: Available in Socket Weld (SW) or Butt Weld (BW) ends, providing a permanent, leak-proof seal directly to the pipeline, ideal for high-pressure and high-temperature services.
• Stellite Hard-Faced Trim: Seat rings and wedge seating surfaces are overlaid with Stellite 6 (Co-Cr-W alloy) to resist severe erosion, corrosion, and galling, ensuring long service life in demanding media.
• Compact & Lightweight Design: The integral forging process allows for a more compact structure compared to cast valves, reducing overall weight and saving installation space in critical piping networks.
Technical Specifications
Parameter | Specification |
Valve Type | Integral Forged Welded Gate Valve |
Design Standard | GOST |
Body Material | Carbon Steel Forging (ASTM A105 / A105N) |
End Connection | Welded (SW / BW) |
Pressure Rating | Class 800 - 2500LB (or equivalent GOST PN) |
Size Range | 1/2" to 2" (DN15 - DN50) |
Temperature Range | -29°C to +425°C |
Trim Material | 13% Cr, Stainless Steel, or Stellite Hard-Faced |
Operation | Manual Handwheel |
Testing & Inspection | API 598 / GOST Testing Standards |
Applications
This high-performance GOST integral forged gate valve is widely deployed in:
• Oil & Gas Industry: High-pressure transmission pipelines, wellhead equipment, and gathering systems requiring leak-tight welded connections.
• Power Generation: High-pressure steam, feedwater, and utility piping networks in power plants.
• Petrochemical Plants: Critical high-pressure fluid isolation and distribution systems.
• Refineries: High-temperature crude oil and hot product processing lines.
• Industrial Boilers: High-pressure steam generation and distribution systems.
FAQ
Q: What does GOST mean in valve specifications?
A: GOST stands for Gosudarstvennyy Standart, the national standard of Russia and several CIS countries. GOST valves are designed to meet strict regional standards for dimensions, pressure-temperature ratings, and material requirements, ensuring compatibility with local industrial infrastructure.
Q: What is the advantage of an integral forged valve?
A: An integral forged valve is manufactured from a single solid piece of metal, eliminating the need to weld the valve body together. This removes potential leak paths, increases structural strength, and provides superior resistance to high pressure, thermal cycling, and mechanical stress.
Q: Why choose A105 forged steel for high-pressure applications?
A: ASTM A105 is a standard carbon steel forging material known for its excellent mechanical strength, high-temperature resistance, and impact toughness. The forging process aligns the grain structure of the steel, making it significantly stronger and more reliable than cast steel for high-pressure and high-temperature services.
