Yongda
Yongda
Explore our industrial-grade HVAC, brass valves, and high-performance plumbing fittings engineered to international standards.
Established in 1996 in Yuhuan, Zhejiang—widely celebrated as the "China Valve Capital"—Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has evolved over nearly three decades into a leading authority in high-tier fluid control systems. Spanning a factory footprint of over 45,000 square meters, with an operational space exceeding 80,000 square meters, we specialize in high-grade brass valves, advanced fittings, and comprehensive HVAC components designed to satisfy strict international standards.
Our commitment to precision engineering is sustained by our collection of over 600 advanced production and testing apparatuses, featuring 80+ specialized CNC machining hubs. These technologies empower us to customize structural properties, guarantee material composition integrity, and conduct high-pressure bubble-tight tests. Under our dedicated premium brand, Cokaren, we carry out our core mission: "keep flowing, keep warming"—delivering reliable, leak-free performance to households and industrial systems worldwide.
Understanding the transition to zero-maintenance welded configurations in high-stress thermal and municipal pipe networks.
Historically, piping connections for district heating (HVAC) systems relied heavily on flanged or threaded joint assemblies. While these configurations allow manual accessibility, they are susceptible to temperature fluctuations, thermal stress, vibrations, and soil shifts. This vulnerability leads to seal degradation, gasket breakdown, and continuous joint maintenance costs.
The introduction of welded-body ball valves has shifted the standard for modern pipeline installations. By welding the valve body into a single unit, manufacturers eliminate the need for body flanges, studs, and gaskets. This design creates a unified metallic structure that matches the strength of the surrounding pipeline, resolving the issue of external leaks.
By welding the valve body into a single structure, the potential path for fluid leaks is eliminated. This is critical for underground layouts, urban district heating, and buried gas lines where access is limited.
Our welded ball valves feature full-bore interior geometries. This design minimizes fluid turbulence, reduces pressure drops, and lowers the operational energy required by network pumps.
Engineered to withstand heavy axial piping loads, thermal expansion, and soil compression, our valves retain smooth, low-torque operation throughout their service life.
Global procurement teams in Europe and North America face several challenges: varying chemical composition standards for brass, inconsistent pressure testing, and unstable supply chain timelines. These challenges often lead to project delays and potential liability risks.
At Yuhuan Yongda, we address these concerns through structured quality control and comprehensive material validation:
Our manufacturing processes integrate automated technology to ensure consistent product quality. Our production floor features CNC machining setups and automated testing benches, reducing human error and sustaining high production yields.
Operating out of Yuhuan, we benefit from a mature, localized raw material supply chain. This proximity minimizes logistical bottlenecks, allowing us to maintain competitive lead times even during global supply shifts. Additionally, our dual-brand approach with Cokaren enables us to support both high-volume industrial orders and customized ODM specifications.
By optimizing tool design, casting, machining, and validation on-site, we help our partners minimize inventory holding costs and maintain consistent project schedules.
Where high reliability and leak-free performance are critical for heating and industrial piping networks.
Designed for sub-stations, boiler rooms, and main distribution lines, providing isolation for high-temperature closed water loops.
Works in tandem with manifolds to deliver balanced water flow across residential and commercial heating zones, keeping system pressures stable.
Suitable for compressed air systems, industrial cooling loops, and non-corrosive fluid systems requiring tight isolation shut-off.
At Yuhuan Yongda Fluid Control Co., Ltd., quality control is integrated into every phase of production. We maintain rigorous standards across raw material handling, CNC processing, and final performance testing. This structured approach ensures our products meet international specifications for long-term service life.
Our facilities and processes align with recognized global management standards:
In addition to our welded ball valves, we manufacture a complete suite of flow-balancing and air-release components to optimize system performance and efficiency.
Serves as a primary barrier in domestic water systems, filtering out particulate impurities down to standard mesh levels.
Regulates hot and cold water intake loops with a durable spherical spool, preventing backflow and pressure spikes.
Automatically releases accumulated air pockets in water heater and HVAC lines, preventing air locks and system noise.
Mixes supply and return water to maintain stable temperatures and protect pipelines from thermal stress.
Integrates temperature sensing and actuation controls to automate energy conservation in heating loops.
Filters debris and regulates flow into the manifold, featuring integrated ports for temperature and pressure readings.
Distributes primary supply water into individual room loops, allowing for balanced zone control.
Essential answers to critical engineering, metallurgy, and procurement questions for industry professionals.
Explore more high-reliability water, gas, and underfloor heating components from our factory line.
