In the high-temperature pipelines of petrochemical plants, corrosive environments of sewage treatment, and high-pressure circuits of power systems, valves serve as the core hub of fluid control. Their reliability directly determines the safety and efficiency of industrial processes. Leveraging sophisticated structural innovation and rigorous manufacturing standards, the Ouwei Triple-Eccentric Butterfly Valve breaks through the limitations of traditional valves in sealing performance, service life, and operating condition adaptability, emerging as the preferred solution for high-end industrial scenarios.
Its core advantages stem from the geometrically synergistic design of triple eccentricity:
• Radial eccentricity separates the valve disc from the seat the moment it opens, enabling "zero-friction" operation. This reduces operating torque by over 35% and significantly minimizes seat wear.
• Angular eccentricity creates progressive line contact during closing, preventing impact damage and ensuring uniform distribution of sealing specific pressure.
• Conical eccentricity builds a self-compensating sealing system. Under high temperature and pressure, the radial compression effect achieves an "increasingly tight seal upon closure," easily meeting the ISO 5208 Class A zero-leakage standard.
This structural design completely resolves the pain points of unreliable sealing and rapid wear in traditional butterfly valves, allowing stable operation even in extreme conditions ranging from -196°C ultra-low temperature to 650°C ultra-high temperature and PN16-PN100 high pressure.
Dual upgrades in materials and craftsmanship enhance the valve’s adaptability to operating conditions:
• Valve bodies use corrosion-resistant materials such as duplex stainless steel and alloy steel. Seats are hardfaced with cemented carbide or made of reinforced PTFE composite materials, improving erosion and corrosion resistance by more than 3 times compared to traditional products.
• The combination of extended precision bearings and multi-layer metal-clad graphite packing ensures low-torque operation while controlling leakage to within 20ppm.
• Modular design facilitates easy seal replacement, reducing maintenance time from 8 hours to 2 hours and cutting lifecycle maintenance costs by 30%.
From temperature control loops in polyethylene plants and flue gas pipelines in catalytic cracking units to sludge return systems in municipal sewage treatment and fluid control in hydrogen energy facilities, the Ouwei Triple-Eccentric Butterfly Valve has achieved deep application across multiple industries. Covering a full diameter range of DN50-DN3200 and equipped with diverse actuation methods—including lever, gear, electric, and pneumatic—it can precisely match different scenario requirements. It features a response time as low as 0.5 seconds for emergency shutdown and a cycle life of over 100,000 high-frequency operations.
Aligned with trends in industrial automation and green low-carbon development, the Ouwei Triple-Eccentric Butterfly Valve has obtained international certifications such as API 609 and ISO 15848. Smart models support the Modbus communication protocol, enabling seamless integration with smart industrial platforms for remote monitoring. Guided by the "dual carbon" goals, the combination of its low-torque design and energy-saving actuators achieves an annual power saving of up to 180kWh per unit, providing solid support for enterprises to upgrade energy efficiency.
The ultimate pursuit of industrial fluid control lies in precise mastery of every operational detail. Centered on its triple-eccentric structure, the Ouwei Triple-Eccentric Butterfly Valve overcomes environmental constraints through material innovation and ensures stable operation via process upgrades, becoming a trusted choice for fluid control in harsh scenarios such as high temperature, high pressure, and strong corrosion. Choosing Ouwei means choosing triple guarantees of safety redundancy, efficiency improvement, and cost optimization, building a solid core line of defense for industrial production.
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