Precision-crafted trunnion mounted valves for severe service conditions.
In the complex landscape of industrial fluid control, the Trunnion Mounted Ball Valve stands as the pinnacle of engineering for high-pressure and large-diameter applications. As a leading supplier & suppliers, we recognize that in industries such as Oil & Gas, Petrochemical, and Power Generation, "standard" is rarely enough. Technical excellence requires a deep understanding of E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness).
The trunnion design utilizes a fixed ball with supports at the top and bottom of the stem, ensuring that the pressure from the fluid is absorbed by the trunnion bearings rather than the valve seats. This fundamental mechanical advantage allows for lower operating torque and prevents seat deformation under extreme Class 2500 pressures.
Our manufacturing philosophy centers on Information Gain—providing engineers with the data they need to mitigate risk. From DBB (Double Block and Bleed) configurations to DIB (Double Isolation and Bleed), our valves are designed for zero-leakage performance in critical isolation points.
Navigating the shift toward sustainable and smart energy infrastructure.
The global shift toward the "Hydrogen Economy" demands valves with superior fugitive emission control. Our latest technical roadmap includes specialized polymer and metal-to-metal seating capable of containing the smallest of molecules under high pressure.
Modern procurement requirements increasingly specify "Smart Valves." By integrating sensors into the trunnion assembly, we enable real-time monitoring of torque, leakage, and cycle counts, facilitating predictive maintenance for EPC contractors.
Transitioning from standard plating to Tungsten Carbide (TCC) and Chrome Carbide (CCC) coatings ensures that our trunnion ball valves withstand abrasive media and slurry service, extending service life by 300%.
Years Engineering Expertise
Countries Exported
Global Industrial Clients
Critical Failure Rate
International procurement managers face a dual challenge: quality assurance and supply chain resilience. As a top-tier **Trunnion Mounted Ball Valve Supplier**, we streamline the sourcing process through:
We provide "Information Gain" by offering detailed FEA (Finite Element Analysis) reports for custom project builds, giving engineers the confidence that our valves will perform in theoretical extremes before they hit the site.
Engineered for Reliability Across Critical Applications.
Valves ensure pipeline isolation and safe operation across upstream, midstream, and downstream systems, even under high-pressure conditions.
Valves maintain reliable sealing and stable operation in corrosive media and fluctuating temperatures.
Valves deliver proven low-temperature performance, tight sealing, and safe pressure management for cryogenic systems.
Valves control steam and process flows in high-pressure, high-temperature environments for critical units.
Valves provide reliable isolation and flow control in continuous, high-pressure industrial operations.
Valves offer excellent sealing integrity and safety design to prevent leakage under high-pressure conditions.
Our products comply with European PED/CE, North American ASME/API, and Russian GOST-R standards, ensuring a smooth customs and installation process globally.
We provide localized technical documentation and video installation guides, reducing on-site commissioning time by up to 25%.
Strict adherence to environmental regulations and ISO 14001 ensures that our manufacturing processes meet modern ESG requirements.
Integrating Inconel and Duplex Stainless Steel forgings as standard for offshore applications to combat chloride-induced stress corrosion cracking.
Providing CAD/BIM models and Digital Twins for every valve, allowing plant operators to simulate flow dynamics and thermal expansion in a virtual environment.
Full transition to fugitive emission Class AH (ISO 15848-1) across the entire product line, eliminating methane leaks in natural gas transport.
Expert insights into common engineering and procurement queries.
A floating ball valve relies on the upstream pressure to push the ball against the downstream seat for sealing. In contrast, a trunnion mounted ball valve is anchored by the stem and trunnion, and the seats move against the ball under spring and fluid pressure. Trunnion valves are preferred for high-pressure (Class 600+) and large-size (over 6") applications due to lower torque and better sealing stability.
DBB allows the operator to verify the integrity of the seats by bleeding the pressure in the cavity while the valve is in the closed position. This ensures that the valve is truly isolating the medium, which is critical for maintenance operations where downstream safety is paramount.
Yes. By utilizing extended stems (for thermal insulation), lip seals, and specialized materials like F316 stainless steel, trunnion valves are highly effective for LNG applications at temperatures as low as -196°C.
Essential certifications include API 6D (pipeline valves), API 607 or API 6FA (fire testing), ISO 9001 (quality management), and SIL 3 (Safety Integrity Level) for automated ESD (Emergency Shutdown) systems.
Specialized configurations for complex industrial environments.
Shoulong Valve
