Yongda
Yongda
As the demand for energy-efficient commercial building services escalates globally, hydronic distribution and pressure regulation require uncompromising component standards. Founded 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 engineered fluid dynamics and temperature regulation solutions for over 28 years.
Through our dedicated sub-brand, Cokaren, we implement our core mission: "Keep Flowing, Keep Warming." We recognize that small structural details in brass valves govern the efficiency of massive boiler plants and underfloor hydronic systems. We combine ISO certification governance with high-grade, zero-lead brass metallurgy to deliver robust OEM and ODM solutions to North America, Europe, and other global regions.
Founded In
Factory Area (sqm)
Advanced Equipment Sets
Exported Countries
Modern commercial heating systems rely on advanced flow isolation and directional control to minimize pressure loss while preventing backflow. Below is our engineering blueprint for designing CE-certified fluid regulators that excel in harsh industrial and domestic operations.
We use premium materials like CW617N, CW614N, and lead-free DZR brass to prevent dezincification corrosion. Our chemical formulation ensures mechanical resilience under temperature shifts from -20°C to 120°C.
By using premium EPDM, NBR, and PTFE seat seals, Cokaren valves achieve class-A bubble-tight shutoff. This design complies with the European EN 12266-1 leak test standard for ultimate safety.
Our check valves are built with custom-calibrated stainless steel springs. This construction guarantees quick closure with minimal pressure loss, protecting against system water hammer.
We believe that pipeline safety relies on zero-fault manufacturing. Every flow check and brass valve undergoes pressure testing using high-accuracy instrumentation. This strategy guarantees structural integrity in high-pressure distribution setups.
Our engineering roadmap combines structural durability with electronic controls. We are developing smart balancing valves and IoT-enabled actuator devices that respond dynamically to pressure changes. These innovations help reduce energy consumption in commercial HVAC projects.
Exporting to more than 20 countries demands adherence to strict certification frameworks. We maintain full compliance across our entire production portfolio, ensuring our products meet the highest international standards.
Our valves and flow control assemblies comply with the European Union's PED requirements. Under CE certification guidelines, we verify material traceability, verify pressure boundaries, and run hydrostatic tests to ensure safety under pressure.
Our manufacturing sites are managed under three core systems: ISO9001:2015 (Quality Management), ISO14001:2015 (Environmental Stewardship), and ISO45001:2018 (Occupational Health & Safety). This rigorous framework ensures consistent quality and production safety.
To meet RoHS, REACH, and drinking water laws in Europe and North America, we utilize special low-lead brass alloys. This material prevents heavy metal contamination and maintains safe domestic water delivery.
Yuhuan Yongda operates a factory area exceeding 45,000 square meters, with an actual usable floor area of 80,000 square meters. Our production capability is built on automated CNC machining lines, automated multi-axis hot forging presses, and computer-guided testing systems.
With more than 600 sets of advanced production and testing equipment, including 80+ specialized machine tools, we scale manufacturing without sacrificing precision. Our vertically integrated factory controls every step from raw material analysis to final testing, shielding buyers from supply chain issues.
This automated approach minimizes production variables. It ensures every batch of check valves, radiator controls, and custom manifolds meets strict tolerance specifications for simple installation and operation.
We design integrated solutions for water filtration, temperature stabilization, and water distribution. Each component is engineered to operate together, simplifying installation and operation.
Protects plumbing lines by trapping 98% of sediment and scale. Ideal for protecting sensitive downstream regulators.
Combines hot and cold water streams to stabilize temperatures. Ideal for radiant floor systems that require precise control.
Distributes fluid flow across heating zones, allowing independent control of room temperatures.
