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Fully Welded Trunnion Ball Valve with Bypass and Drain - Large Diameter Gas Pipeline Solution
High-Pressure Metal Seated DBB Trunnion Mounted Electric Actuated Ball Valve
High-Temperature Hard-Seal Fixed Ball Valve for Gas Pipeline Compressor Stations
Forged Steel Metal Seated Trunnion-Mounted DBB Ball Valve for Severe Service
In the contemporary energy landscape, the transmission of natural gas over vast distances requires infrastructure of unparalleled integrity. Forged steel ball valves for large diameter gas pipelines have emerged as the critical "gatekeepers" of these networks. As nations shift toward cleaner energy sources, natural gas serves as a vital bridge fuel, leading to the construction of massive pipeline projects that span continents and cross challenging terrains.
Large diameter pipelines (often exceeding 24 inches and up to 56 inches) operate under immense pressure, sometimes reaching Class 2500 (PN420). In such environments, the material integrity of a valve is not just a performance metric—it is a safety mandate. Forged steel offers a dense molecular structure that eliminates the porosity issues often associated with casting, providing superior resistance to the mechanical stresses and thermal fluctuations inherent in gas transmission.
With over 30 years of manufacturing experience, SLVCN is a professional designer and manufacturer of high-performance forged steel ball valves for critical industrial applications. We specialize in extreme working conditions including high pressure, high temperature, and cryogenic environments, providing safe and reliable flow control solutions for global industrial projects where operational reliability is non-negotiable.
Our core product range covers forged trunnion-mounted and floating ball valves, top-entry and side-entry ball valves, fully welded ball valves, metal seated ball valves, cryogenic ball valves, high-pressure ball valves up to Class 2500 (PN420) and customized higher pressure ratings, as well as high-temperature service valves.
Years Experience
Countries Served
Installed at regular intervals along thousands of miles of pipeline, these valves must remain operational after years of dormancy. Forged steel construction ensures the valve can withstand the weight of the soil in buried service and the internal pressure of the gas.
Valves in compressor stations face rapid pressure cycles and vibration. SLVCN's trunnion-mounted designs distribute the load, reducing torque and extending the life of the sealing surfaces.
For large diameter LNG pipelines, our cryogenic forged valves operate at temperatures as low as -196°C. The forging process ensures that the valve body remains ductile and crack-resistant at these extremes.
Safety and reliability are embedded in every design. Our forged ball valves are equipped with DBB structures, allowing for the safe venting of the body cavity while the valve is in the closed position, ensuring absolute isolation.
Compliance with API 607 / API 6FA ensures that in the event of an external fire, the valve maintains its sealing integrity. Anti-static devices prevent the buildup of static electricity, a critical requirement for handling flammable natural gas.
For large diameter valves, we incorporate emergency sealant injection ports for both the stem and the seats. This allows operators to restore sealing in the event of damage to the primary seals without shutting down the pipeline.
The industry is moving toward "Smart Valves". By integrating sensors into the forged body, SLVCN is preparing for a future where valve health, leakage, and operational torque are monitored in real-time via IoT platforms. This predictive maintenance approach is essential for large-scale gas pipelines where downtime costs millions.
Another major trend is Hydrogen Readiness. As the world explores hydrogen blending in natural gas pipelines, the materials used in forged ball valves must be resistant to hydrogen embrittlement. SLVCN is at the forefront of testing high-grade alloys like F51 and Inconel to meet these future energy requirements.
Reducing methane leakage is a global priority. Our forged steel ball valves are designed with low-emission packing and precision-machined sealing surfaces to meet the most stringent ISO 15848-1 fugitive emission standards, helping energy companies meet their ESG goals.
To ensure consistent quality, each valve undergoes a complete series of inspections and performance tests in accordance with API 6D, API 598, and ISO 5208. This includes:
SLVCN is certified to ISO 9001, CE, and API standards. We provide extensive customization capabilities covering sizes from 1/2” to 36”, full bore or reduced bore, and special materials including A105, LF2, F11, F22, F51, and Inconel. Our valves are designed for the world’s most demanding industrial projects.
Fully Welded Trunnion Ball Valve - Gas Pipeline Optimized
Electric Actuated High-Pressure Metal Seated Valve
Industrial High-Temperature Hard-Seal Fixed Ball Valve
Forged Steel Metal Seated Trunnion-Mounted DBB Valve
Cryogenic Top Entry Floating Ball Valve for Gas Storage
Class 2500 / 6000 PSI Forged DBB Trunnion-Mounted Valve
Compact Cryogenic Trunnion Valve with Worm Gear
Class 300 Forged DBB Ultra-Low Temperature Ball Valve
Today, SLVCN serves customers in more than 100 countries and regions, supplying valves to EPC contractors, engineering companies, and end users across Europe, the Middle East, Southeast Asia, and the Americas.
Contact Our Engineering Team
18061659285
