TWIV FLUID VALVE-specialize in the R&D and heavy-duty manufacturing of large-scale butterfly valves, dedicated to providing robust, durable, and high-performance flow control solutions for the world's most demanding infrastructure projects, municipal water supply systems, and heavy industrial sectors.

Engineered for Large-Diameter Pipelines: Uncompromising Industrial Strength

While standard suppliers often reach their limits at medium sizes, we operate with ease in the realm of large-scale manufacturing. We possess a state-of-the-art manufacturing facility equipped with 5-meter-class heavy-duty CNC vertical lathes, automated large-scale casting workshops, and custom-built 100-ton hydraulic test benches. Empowered by this formidable hardware infrastructure, we can effortlessly manufacture ultra-large butterfly valves ranging in diameter from DN1200 to DN3000 (48 inches to 120 inches)—and even larger—fully capable of withstanding the rigors of extreme pressures and harsh operating conditions.

Built for Reliability: Key Features of Our Industrial-Grade Large Butterfly Valves

Every industrial-grade large butterfly valve leaving our workshop is manufactured in strict compliance with the highest heavy industry standards (such as AWWA C504, EN593, and API 609). To ensure exceptional "zero-leakage" performance under massive flow rates, our large-scale valves incorporate the following core features:

Optimized Structural Integrity: Featuring high-strength ductile iron or cast steel bodies, precision-engineered via Finite Element Analysis (FEA) to ensure the valve body remains free of deformation even under immense pipeline pressures.

Advanced Centerline and Eccentric Sealing Technologies: Employing centerline, double-eccentric, or triple-eccentric designs to effectively minimize friction loss and reduce operational torque requirements, thereby significantly extending the service life of the sealing components.

Heavy-Duty Actuation Systems:Equipped with custom-tailored heavy-duty gearboxes, electric actuators, or pneumatic systems—specifically designed for large butterfly valves—to ensure reliable, high-torque valve opening and closing operations.

Why Choose Our Heavy-Industry Facility for Your Large Butterfly Valves?

A True Direct Manufacturer:From casting and machining to performance testing, every single stage of the production process—particularly for ultra-large valves—is executed 100% in-house within our own facilities. By keeping our entire production process in-house—without any outsourcing—we are able to implement the most rigorous quality controls and ensure highly predictable delivery schedules.

Extensive Portfolio of Major Projects:Our industrial-grade large-scale butterfly valves have been successfully deployed in numerous mega-projects worldwide, spanning sectors such as seawater desalination, power plant circulating cooling systems, and large-scale urban water diversion networks.

Customized Engineering Solutions:** From specialized anti-corrosion rubber linings to valve discs crafted from super duplex stainless steel, we can tailor-make every large-diameter butterfly valve to precisely match your specific pipeline specifications and operational requirements.

Choose to partner with a manufacturer possessing true heavy-industry capabilities. Contact our engineering team today to obtain technical drawings and receive a highly competitive, direct-from-factory quotation for your large-diameter butterfly valve requirements!

All valves are manufactured with high-strength materials and precision engineering to ensure excellent durability, corrosion resistance, and pressure handling capability. The robust sealing design guarantees tight shut-off performance, minimizing leakage risks and ensuring the fire protection system remains fully operational when needed most.

Our fire fighting butterfly valve series is trusted by engineers, contractors, and system integrators for its reliability, ease of installation, and long-term stability. Whether used in new construction or system upgrades, these valves provide a dependable solution for critical fire safety applications.

Choosing our fire protection butterfly valve products means investing in higher safety standards, smarter system monitoring, and long-lasting performance for your fire fighting infrastructure.