Yongda
Yongda
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996. Our headquarters and manufacturing facility are strategically located in Yuhuan, Zhejiang, widely acknowledged as the official "China Valve Capital." As a pioneering plumbing enterprise, we balance custom engineering with global distribution, maintaining fully integrated processes covering advanced industrial design, prototype development, precision production, and rigorous product testing.
We supply three strategic product categories: brass valves, heavy-duty pipe fittings, and smart HVAC (Heating, Ventilation, and Air Conditioning) components. Our production lines are specifically calibrated for mid-to-high-grade plumbing systems. By leveraging lead-free and eco-friendly metallurgy, our solutions address the strict mechanical and environmental safety requirements of water system systems in North America, Europe, and other highly regulated international markets.
Spread over an industrial footprint exceeding 45,000 square meters—with actual usable facilities reaching 80,000 square meters—our production capacity is supported by more than 600 sets of advanced manufacturing and inspection systems. This include 80+ specialized CNC machining configurations optimized for fast-turnaround customization, helping us export reliable equipment to over 20 countries worldwide.
Headquarters factory located in Yuhuan, Zhejiang.
Cokaren represents our dedicated brand initiative focused on high-efficiency domestic thermal and fluid distribution. It is engineered to meet the growing market demand for refined appearance, strict tolerance controls, and long-term mechanical reliability.
The brand's promise—"keep flowing, keep warming"—defines our approach to engineering safe, reliable water connections. We work to ensure that all Cokaren components, from simple bibcocks to complex underfloor manifolds, contribute to the consistent thermal safety of modern residential plumbing.
By implementing proactive engineering designs, Cokaren works to align dynamic growth with the technical demands of international distributors, positioning itself as a reliable brand for high-performance fluid control.
Our business is built on a simple operating standard: Fine work, no leakage. We maintain strict manufacturing controls from the raw materials to the final pressure test.
Culture: Struggle, Enterprising, Pragmatic, Innovative
Tenet: Customer first, Quality based
Quality Policy: Fine work, no leakage
We work to support our team's professional development while continually upgrading production capabilities, aligning company growth with the personal happiness of our employees.
Over 80 units of dedicated high-precision CNC tooling systems allow us to machine valve components to tight tolerances.
Our testing laboratory conducts pressure, temperature, and cycle-life tests to ensure bubble-tight shutoff reliability.
Reliable operations require strict external auditing. Yuhuan Yongda Fluid Control Co., Ltd. operates under integrated quality, environmental protection, and occupational safety frameworks verified by accredited international agencies.
Ensures all steps, from material entry to final shipping inspection, follow standardized workflows to maintain product consistency.
Monitors and manages wastewater reclamation, brass recycling, and energy consumption across our foundry and CNC lines.
Protects our manufacturing team by enforcing safe physical operational standards throughout forging and machining processes.
Our products conform to the mechanical performance and environmental specifications of key international destinations, supporting long-term distribution partnerships in North America and European regions.
A unified schematic showing how our main control components fit together to regulate water safety and temperature in residential energy distribution networks.
Comprehensive fluid flow layout demonstrating the coordination of filtration, pressure control, temperature mixing, and manifold separation.
Our hydronic products function together as a coordinated energy distribution system, providing precise thermal regulation, filtering physical contaminants, and managing line pressures in domestic heating and cooling layouts.
Maintains solid connection integrity between primary boilers and distribution lines.
Regulates and distributes dynamic pressures to prevent velocity noise and wear.
Serves as the primary physical barrier in domestic water systems. Engineered to capture up to 98% of line debris and physical sediment to protect downstream control valves.
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Designed for isolating cold and hot supply lines connected directly to heat exchangers. Utilizes a low-friction spherical brass spool for smooth shutoffs.
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Automatically discharges accumulated pockets of air from water source heat pumps, preventing system cavitation and maintaining heat transfer efficiency.
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Maintains consistent water temperatures in mixed hydronic loops. Blends hot supply with return flow to keep temperatures stable and protect distribution lines.
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Integrates with multi-zone heating systems to monitor and adjust target room temperatures, coordinating zone valve operation for better thermal efficiency.
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A multi-port safety assembly that monitors temperature and water pressures, controls loop flow, and filters out particulate line debris.
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The central hub for hydronic radiant heating loops. Distributes source hot water to individual room circuits and integrates balancing valves to maintain consistent flow resistance and heat distribution across all connected lines.
High-grade brass valves, manifolds, and heating accessories designed for commercial and residential fluid systems.
Combines a full-port brass isolation valve with a stainless steel cylindrical wire screen to protect downstream equipment from debris within a single space-saving component.
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A manual radiator regulating valve designed for balancing hydronic loops. Features a fine-pitched stem thread for precise flow adjustments and temperature control.
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Uses a thermostatic expansion mechanism to blend cold and hot water lines, helping to prevent scalding while stabilizing temperature fluctuations.
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A heavy forged multi-port flow block for floor heating. Distributes warm water across system circuits with built-in balancing valves to manage flow resistance.
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An outdoor brass spigot from the Cokaren line. Built with corrosion-resistant brass alloys to withstand environmental exposure and thermal cycling.
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A heavy-duty isolation valve with a solid wedge gate for straight-line flow control. Designed to minimize pressure drop when fully open.
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Precision-machined inlet and outlet brass coupling tubes. Threaded to match standard municipal water meters, providing leak-resistant, straight connection paths.
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Hose barb adapters manufactured to American thread profiles. Designed for a secure grip and leak-resistant seals on industrial, agricultural, and plumbing lines.
Request QuoteA detailed view of our standard brass valves and connections, built for utility, heating, and industrial systems.
Designed to control direction and manage pressure in residential supply lines, using a forged brass piston mechanism to prevent pressure surges.
Features corrosion-resistant external threads, built for outdoor utility connections and secondary safety shutoffs.
A heavy forged brass tap with a union joint output, designed for quick installation on utility and garden supply connections.
An isolation valve fitted with thread connectors for plumbing lines, providing reliable flow control in a simple design.
A safety bypass assembly with an integrated valve, protecting plumbing loops against over-pressurization.
Designed for public outdoor locations, featuring an electroplated finish and a lockable key handle to prevent unauthorized water use.
A straight-through gate valve with standard female BSP/NPT threads, suitable for general low-pressure plumbing and utility lines.
A dual-function assembly with a nickel-plated finish. Combines a backflow check valve with a T-pattern debris strainer.
A standard Y-pattern strainer designed to capture line sediment. Features a removable plug for easy filter screen maintenance.
Designed for suction-line inlet piping. Prevents backflow drainage and blocks intake sediment, helping to protect pump impellers.
A spring-loaded check valve for horizontal or vertical installations, preventing flow reversal in process supply systems.
An integrated pump station designed for underfloor manifolds. Blends return water to control temperatures in radiant floor systems.
A temperature-regulation manifold subsystem that helps maintain balanced temperatures across multi-zone residential hydronic systems.
A water mixing station with built-in temperature dials, designed for coordinating feed lines in underfloor manifolds.
Protects circulation pumps by venting air pockets and maintaining a stable pressure differential across manifold supply loops.
A manual threaded bleed valve installed at manifold ends to allow manual venting of trapped air pockets.
Continually and automatically releases accumulated gases from hydronic systems to prevent air locks and temperature drops.
A float-type automatic air relief valve designed for high-temperature service near boilers and heat exchangers.
An end assembly for underfloor heating manifolds, combining an automatic air vent with a manual drain valve.
Corrosion-resistant brass compression fittings engineered for joining polyethylene (PE) lines in cold-water networks.
Standard threaded connectors, elbows, and extensions, manufactured to tight tolerances for secure, leak-free pipeline joins.
Yuhuan Yongda Fluid Control Co., Ltd. supplies high-precision environmental brass valves, heavy-duty fittings, and HVAC manifolds to major distributors in Europe and North America. Get in touch with our team for engineering specifications, test certificates, and bulk ordering info.
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