The convex ear centerline butterfly valve is suitable for controlling andTruncating various media, including liquids, gases, and steam, meeting the needs of different industries and fields.
Concentric Line Resilient Butterfly Valves have stem/disc/seat centerlines coinciding, achieving bidirectional sealing via elastic materials (e.g., rubber). Features: compact, low flow resistance, easy operation. Applied in low-pressure/clean media systems like water, food/pharmacy, HVAC.
Size Range: 2″ – 60″ (DN50 – DN1500)
Pressure Range: Class 150-300 | API 609 600 PSI
Design Standards: API 609, ISO 10631, BS 5155, MSS SP-67
Material Range: Ductile Iron, Cast Steel, Stainless Steel (304/316), Bronze
End Connections: Flanged (FF, RF), Wafer, Lug, Butt Weld (BW)
Body Structures: Wafer Type, Lug Type, Double Flanged
Body Types: Concentric, Resilient Seated
Body & Bonnet Connection: Bolted Bonnet, Integral Stem (Anti-blowout)
Professional Centerline butterfly valve
Centerline butterfly valves feature simple structures, easy manufacturing and small installation spaces. For critical applications, consult Tianyu Valves—we customize materials, seals and certifications per project needs.
I. Introduction: The Critical Role of V-Port Ball Valves in Mining Slurry Operations Mining operations—from copper and iron ore extraction to coal and mineral processing—rely heavily on slurry systems to transport abrasive, high-density mixtures of solids and liquids. These slurries, composed of crushed ore, water, and often corrosive chemicals (e.g., flotation reagents, leaching acids), present […]
As the final notes of 2025 fade and the dawn of 2026 breaks, the industrial sector reflects on a year of resilience, innovation, and collaborative growth—while setting sights on new horizons of efficiency and reliability. For TIANYU, a leading China-based manufacturer and supplier of industrial valves, 2025 was a year of remarkable milestones: strengthening partnerships […]
I. Introduction: The Critical Role of Actuated Valves in Modern Industrial Processes In the landscape of industrial process control, valves serve as the “gatekeepers” of fluid and gas flow, regulating pressure, volume, and direction with precision. While manual valves rely on human intervention, actuated valves—equipped with automated driving mechanisms—have become indispensable in large-scale, high-precision, or […]
I. Introduction Butterfly valves have emerged as cornerstone components in industrial fluid control systems, celebrated for their compact footprint, lightweight construction, and exceptional flow regulation efficiency. Among these, API 609 butterfly valves represent the gold standard for critical industrial applications, defined by the American Petroleum Institute (API) Standard 609—an exhaustive specification governing design, manufacturing, and […]
I. Introduction: The Critical Role of Valve Selection in Industrial Systems Valves serve as the “control nodes” of industrial fluid systems, regulating the flow of liquids, gases, and slurries across sectors ranging from oil and gas to municipal water treatment. Among the most widely used valve types, gate and globe valves dominate applications requiring reliable […]
Our products and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.
We offer tailor-made industrial valves to ensure that our product fits your application standards and demand. TIANYU is ISO, API, MSS, and ASME compliant to guarantee you the highest product quality.
As a business partner, TIANYU makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.
TIANYU’s service does not end once our industrial ball valves are being delivered. Also, we offer warranties and provide customer service to our clients as part of our quality service.
Tianyu Professional China Valve Manufacturers and Supplier Conforming ISO APl CE certification standards
Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right valve you want.
Founded in 2009, Wenzhou Tianyu Valve Technology Co., Ltd. is a professional valve enterprise integrating design, development, production, and sales services, located in the hometown of Chinese valves – Oubei Town, Wenzhou.
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