Yongda
Yongda
Architecting Precision in Flow Dynamics, Thermal Efficiency, and Process Controls
Engineered Fluid Systems Since 1996
Founded in 1996, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is strategically situated in Yuhuan, Zhejiang—widely recognized as the "China Valve Capital." Over nearly three decades of sustained growth, the enterprise has established itself as an integrated leader in the HVAC, brass valve, and plumbing fitting sectors.
The firm segregates its product portfolio into three primary business divisions: environmental-grade brass valves, custom pipeline fittings, and high-performance HVAC system components. Positioned within the mid-to-high-end spectrum, Yongda’s products are meticulously manufactured to satisfy stringent eco-friendly specifications, making them the preferred choice for commercial operators across North America, Europe, and Latin America.
To satisfy dynamic consumer demand, the corporation introduced the Cokaren brand. Rooted in the brand promise of "keep flowing, keep warming," Cokaren concentrates on delivering hydronic components characterized by refined aesthetic design, high-grade material composition, and failure-free field operation.
Materials Science, Tolerance Controls, & Hydronic Engineering Standards
Utilizing specialized brass alloys that inhibit zinc leaching, preserving structural integrity when exposed to corrosive or oxygenated water supplies.
Integrating mechanical springs and elastic diaphragms calibrated to manage low-pressure drops with minimal hysteresis and zero hunting.
Every single regulator, valve, and manifold assembly undergoes 100% pneumatic testing to verify seal containment under peak operational pressure limits.
System Architectures for Modern Residential & Commercial Complexes
Yongda's fluid control components are engineered to work in tandem. Within a modern hydronic heating or district heating setup, the low pressure regulator is paired with automatic air vents, mixing shunts, manifolds, and dynamic thermal actuators. This system integration ensures balanced energy distribution across multi-zone residential and commercial developments.
Integrating key components to regulate system safety, maintain constant thermal flow, and filter particulate matter.
Optimizing Total Cost of Ownership (TCO) in Commercial Supply Chains
| Component Series | Primary Material Selection | Sizing Range | Target Industries | Estimated OEM Price (FOB, USD) |
|---|---|---|---|---|
| HVAC Mixing Valves & Shunts | Forged Brass CW617N / Lead-Free Brass | DN20 - DN32 | Radiant & Underfloor Heating Loops | $18.50 – $32.00 |
| Commercial Gate & Ball Valves | Electroless Nickel-Plated Forged Brass | 1/2" – 2" (NPT/G-Thread) | Potable Water & Boiler Inflow Loops | $4.20 – $15.50 |
| Precision Auto Air Venting Assemblies | Heavy-Duty Corrosion Resistant Brass | G3/8" – G1/2" | Air Source Heat Pumps & Hydronic Deaeration | $2.80 – $6.50 |
| Flow Distribution Manifold Blocks | Extruded / Forged Brass Profiles | 2-12 Loop Ports | HVAC Zoning & Radiant Energy Networks | $22.00 – $95.00 |
| Custom Plumbing Compression Adapters | Eco-Friendly Standard Brass | 16mm – 32mm | PEX / Multilayer Pipe Installations | $0.65 – $2.20 |
Where Engineering Excellence Meets Social Responsibility
The operational model at Yuhuan Yongda Fluid Control is built on four core values: Struggle, Enterprising, Pragmatic, and Innovative. Guided by the principle of "Customer first, Quality based," we verify that every production run complies with international safety and performance criteria.
Our manufacturing facility operates under the ISO9001-2015 Quality Management System, ISO14001-2015 Environmental Management System, and ISO45001-2018 Occupational Health and Safety Management System. By adhering to these frameworks, we maintain high standards of safety and sustainability across all manufacturing phases.
Original Cokaren & Yongda High-Precision Engineered Products
Engineered design integrating inline fluid isolation with a cleanable mesh strainer, minimizing component counts in tight footprints.
Manual and motorized options that adjust radiant piping temperatures to prevent structural thermal fatigue.
Thermostatically controlled mixing unit designed to balance return water with high-temp primary supply lines.
Multi-port distribution manifolds that route fluid flows smoothly while integrating dynamic diagnostic indicators.
Outdoor utility and heavy-use valve configurations developed by Cokaren for long service lives in exposed conditions.
Heavy-walled brass gate valves with low pressure drop characteristics, ideal for isolating primary water loops.
Precision coupled connection fittings that secure residential and municipal water meters without mechanical stress.
NPT threaded configurations manufactured to high standards for fast hose connections in industrial environments.
Answering Major Queries on Sizing, Pressure Regulation, & Engineering Specifications
Hydronic underfloor heating loops rely on low pressure and balanced flow paths to provide even thermal radiation. Excessive inlet pressure causes turbulent flows, valve seat noise, and accelerated fatigue of the thermostatic actuators. Lower pressure limits ensure optimal, quiet circulation.
CW617N is a European standard brass (CuZn40Pb2) that balances hot forging behaviors with machinability. It complies with strict international environmental regulations by limiting lead content, preventing heavy metal migration into closed-loop HVAC or potable municipal water systems.
Yongda utilizes high-capacity brass automatic air vents (like the Y9070 series) that continuously vent trapped air bubbles. Removing air pockets helps prevent inner oxidation, scaling, cavitation, and thermal transfer blocks within the piping network.
Yes. Backed by our 45,000+ square meter factory facility, dynamic production layouts, and specialized engineering staff, we configure custom threads (G, NPT, Metric), custom pressure rating points, and custom brass metallurgy profiles according to project specifications.
We follow a zero-leakage testing policy. Each manifold differential bypass and piston pressure reduction valve is calibrated under variable hydraulic loads to confirm dynamic sealing, cracking pressure accuracy, and structural integrity.
