Extended bonnet ball valves represent the pinnacle of sealing technology, specifically engineered for extreme environments. In applications involving cryogenic gases (LNG) or high-temperature steam, the traditional valve stem packing needs protection from the extreme temperature gradients of the process fluid. Our extended bonnet design isolates the packing box from the main flow, ensuring the stem seal remains at a functional, safe temperature, thus preventing leaks and catastrophic failures.
Our extended bonnet configurations are optimized for temperatures down to -196°C. We utilize specialized low-temperature austenitic stainless steels and rigorous heat treatment to maintain material toughness.
For high-temperature thermal oil or steam applications, the extended bonnet acts as a heat radiator, keeping the actuator and sealing components within their rated operating windows.
We prioritize environmental compliance. Our designs minimize VOC (Volatile Organic Compound) emissions, exceeding international EPA and emission control standards.
Our manufacturing facility operates under the "Smart Factory" paradigm. By integrating automated CNC machining, robotic welding, and real-time IoT monitoring of heat treatment processes, we ensure that every extended bonnet ball valve leaves our factory with perfect dimensional accuracy and metallurgical integrity. This technological leap allows us to scale production for global infrastructure projects without compromising the craftsmanship required for specialized high-performance valves.
We understand that procurement managers at global EPC firms face the challenge of sourcing reliable components in a volatile market. Our value proposition lies in our:
The extended bonnet creates a "vapor space" between the process fluid and the stem packing. This prevents the packing from freezing and hardening, which would cause stem seal leakage. It ensures the valve remains operable even when the body is at -196°C.
We maintain an integrated quality management system. Our valves undergo rigorous Non-Destructive Testing (NDT), including ultrasonic, radiographic, and helium leak testing, ensuring they meet the stringent requirements of API 6D and other global standards.
Yes. We offer custom material selection (e.g., Inconel overlays for corrosion resistance) and specialized coatings (e.g., thermal spray or anti-corrosive painting) to withstand the harsh environments of offshore platforms or arid desert locations.
Shoulong Valve
