Yongda
Yongda
Discover high-performance components engineered for residential hydronics, commercial water distribution, and precision industrial systems.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is a recognized powerhouse in sanitary valve design, processing, and engineering. Founded in 1996, our operations are anchored in the heart of "China's Valve Capital" - Yuhuan, Zhejiang.
We specialize in three comprehensive engineering categories: brass valves, precision plumbing fittings, and state-of-the-art HVAC system controls. Positioned for mid-to-high-end global applications, our products prioritize raw-material purity, lead-free structures, and mechanical resilience. Our solutions are highly favored in demanding environments across North America, Europe, and Asia.
Operating across a massive 45,000 square meter facility (with an actual usable area exceeding 80,000 square meters), our plant deploys more than 600 units of advanced manufacturing and inspection equipment, including 80+ high-precision specialized CNC machine tools. This specialized tooling allows us to sustain complex custom specifications for partners across 20+ countries.
As Yuhuan Yongda's premier design-focused brand, Cokaren carries a unique mission: merging refined industrial aesthetics with uncompromising functional reliability.
Cokaren’s core brand promise, "Keep flowing, keep warming", represents our commitment to creating high-efficiency domestic underfloor heating and water circulation environments. Our brand design process emphasizes ergonomic details, robust sealing materials, and modern architectural integration.
Every Cokaren product undergoes stringent pressure containment, material composition, and cyclical wear testing to guarantee long-term operational integrity and complete user comfort.
Navigating material certifications, pressure tolerances, and compliance protocols for industrial piping and water supply operations.
Procuring sanitary valves demands verified alloy standards. We utilize premier CW617N forged brass and Dezincification Resistant (DZR) brass alloys, ensuring high mechanical resistance, zero stress corrosion cracking, and heavy metal compliance for potable water delivery systems.
Modern smart commercial buildings require integrated systems. Our advanced range of thermal actuators and electric actuators enables direct linkage to smart building management systems (BMS), optimizing energy efficiency and ensuring precise, real-time temperature regulation.
Total Cost of Ownership (TCO) is highly impacted by joint seal integrity and cycle life. With our proprietary double-EPDM O-ring systems and PTFE seats, our ball valves, check valves, and manifolds reduce system downtime, prevent fluid leakage, and lower long-term maintenance costs.
Tailored engineering strategies resolving heating, potable water, and system pressure regulation problems.
In underfloor heating systems, balancing flow rates across different zones is critical. Our manifolds coupled with dynamic balance valves allow engineers to stabilize system pressure, eliminating cold spots and achieving high thermal efficiency.
Protecting domestic water networks from chemical degradation and heavy metal contamination is our top priority. We manufacture certified lead-free brass products and high-grade filters to provide safe, clean potable water systems.
Modern HVAC installations rely heavily on motorized water control systems. Our electric actuators and smart thermostatic controllers adapt dynamically to changing thermal environments, reducing waste heat.
Our energy distribution systems provide smooth media control, high thermal transfer, and zero leak safety. By utilizing premium alloys, strict forging parameters, and ISO inspections, we supply reliable infrastructure for modern plumbing setups.
The first line of defense in domestic water sanitation, filtering 98% of incoming particulates in the pipeline system.
Designed to control inflow and outflow water levels inside boilers. Built with a high-resistance spherical brass spool.
Exhausts air locks inside boilers and air source water heating setups to avoid cavitation and fluid dynamic blockages.
Combines hot and cold water streams to stabilize system output temperatures and protect mechanical connections.
Integrates multiple heating nodes to efficiently control water distribution zones and optimize energy usage.
Filters out line particulates, controls return lines, and measures system pressures and liquid temperatures.
Our primary operational objective is: "Fine work, no leakage." To guarantee absolute sealing capacity, our quality team implements strict leak tests and dimensional checks on 100% of finished valves.
• Culture: Professional struggle, proactive enterprisal focus, pragmatic steps, and ongoing engineering innovation.
• Tenet: Customer satisfaction first, driven by strict quality control.
Yongda has built a safe, modern working environment certified under major international management protocols:
Expert insights addressing material options, system pressures, and design configurations for wholesale B2B buyers.
For standard European installations, CW617N (CuZn40Pb2) is widely utilized due to its excellent hot forging properties and overall mechanical strength. For lead-free potable water mandates, we deploy Dezincification Resistant (DZR) brass alloys that strictly comply with NSF/ANSI 61 and RoHS limits, preventing dezincification and lead migration.
Without proper balancing, paths of least resistance receive excessive flow, leaving distant zones under-heated. Dynamic balance valves adjust flow rates under fluctuating pressure, keeping fluid distribution uniform across all manifold loops.
An electric thermal actuator uses a wax-filled element that expands when heated by an electrical current. This expansion pushes a piston down to close the manifold valve pin. Once current ceases, the wax cools and a return spring retracts the piston, allowing precise, automated zoning control.
We use multi-stage inspection systems: 100% pneumatic sealing tests are conducted on assembly lines, alongside regular high-pressure hydrostatic testing in our labs. We also run mechanical cycle life tests to confirm valve seal integrity under prolonged, intense use.
Explore our expanded inventory of heavy-duty gate valves, boiler safety components, and HVAC connection adapters.
