Yongda
Yongda
Explore our core engineering catalog—featuring brass compression, flare, garden hose, and specialty plumbing configurations.
A comprehensive whitepaper overview detailing mechanical robustness, metallurgic specifications, and the micro-engineering behind advanced pipe fitting architectures.
Modern commercial and municipal architectures require precision-engineered brass fittings that withstand extreme thermal fluctuations and high pressure profiles. As commercial construction shifts towards sustainable green building designs, hydronic heating systems and PEX piping loops require mechanical connections that offer zero leakage over decadal periods.
Yuhuan Yongda Fluid Control Co., Ltd. processes premium grade alloys (such as HPb59-1, C37700, and lead-free CW617N brass) utilizing state-of-the-art forging and heat treatment processes. This optimizes structural density, completely eliminating micro-fissures and internal stresses that lead to stress corrosion cracking under operating environments.
Through our dedicated R&D team and new high-end brand *Cokaren*, we offer full bespoke custom fabrication. From special thread profiles (NPT, BSPT, G) to custom geometry designs, we help international commercial clients transition from prototype concepts directly to large-scale mass manufacturing.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has engineered elite fluid dynamic solutions since 1996.
Headquartered in the globally recognized hub of "China Valve Capital" — Yuhuan, Zhejiang, our enterprise operates across a physical footprint of over 45,000 square meters, with an actual usable factory area reaching 80,000 square meters.
Equipped with over 600 sets of advanced machinery—including 80+ specialized CNC machining centers and automated forge-press groups—our infrastructure is designed to output high-end brass valves, fittings, and HVAC distribution components to over 20 countries.
Our core operations are built on a single, uncompromising operational standard: "Fine work, no leakage."
As a certified organization (ISO9001-2015 Quality Management, ISO14001-2015 Environmental Management, and ISO45001-2018 Occupational Health and Safety), we test every single run of pipe fittings under intensive pressure tests before packaging.
By leveraging raw materials from audited smelting plants, we guarantee that all products conform to exact mechanical tolerances. Our corporate philosophy aligns organizational capability with the happiness of our employees, fostering long-term dedication and industry-leading craft consistency.
Lead-free formulations conforming to modern North American and European drinking water safety guidelines.
Every individual valve and manifold assembly is 100% pneumatic-hydro tested at maximum dynamic load capacity.
Our operational scale and technical capabilities are backed by solid, verifiable metrics.
Integrated solutions engineered to manage thermal fluid flows, maintain pressure control, and deliver energy-efficient performance.
For modern multi-zone heating and industrial HVAC installations, we develop components that route, filter, and balance high-temperature fluid networks. Our brass manifolds and mixing valves work in perfect harmony to preserve the energy profiles of underfloor water heating arrays.
The primary barrier in domestic water sanitation, filtering out up to 98% of particulate impurities within the pipeline.
A spherical spool configuration designed to direct and regulate cold and hot fluid flows into main boiler systems.
Engineered to discharge trapped air in heat pump and water heater loops, maintaining system pressure stability.
Blends cold and hot supply lines, stabilizing delivery temperatures and protecting pipelines from thermal shock.
An electronic integration hub that communicates with mixing shunt systems to regulate room temperatures.
Multi-stage control valve featuring inline filtration, system discharge ports, temperature meters, and bypass diagnostics.
A deep look at our design evolution and material properties, engineered to handle chemical, pressure, and mechanical stresses.
The transition to modern safe drinking water networks requires zero-lead contact. Standard brass contains trace elements of lead to assist in machinability. Our technical roadmap incorporates silicon-brass and bismuth-brass alternatives that match traditional mechanical properties while meeting strict modern environmental criteria.
Additionally, in coastal environments and municipal systems exposed to soft water, brass is susceptible to *dezincification*. Our specialized manufacturing process controls the zinc ratio and adds trace amounts of arsenic or antimony to create a highly resistant DZR alpha-brass phase.
Forged brass offers superior strength and pressure integrity compared to cast alternatives. The forging process re-aligns the alloy's grain flow to follow the shape of the fitting, enhancing structural density and resisting pinholes and high-stress fractures.
| Alloy Grade | Copper (%) | Lead (%) | Zinc (%) | Ideal Applications |
|---|---|---|---|---|
| CW617N | 57.0 - 59.0 | 1.6 - 2.5 | Balance | European Heating & Gas Networks |
| C37700 | 58.0 - 61.0 | 1.5 - 2.5 | Balance | North American Plumbing Fittings |
| C46400 (Naval) | 59.0 - 62.0 | 0.2 Max | Balance | High-Salinity Marine Environments |
| C27453 (Lead-Free) | 60.0 - 63.0 | 0.25 Max | Balance | Safe Drinking Water Systems |
How the geographical advantage of Yuhuan, China ensures lean logistics, material supply security, and unbeatable manufacturing efficiency.
Yuhuan serves as the global capital of brass plumbing components. The local concentration of smelting, extrusion, forging, tooling, surface treatment, and packaging companies creates a highly efficient manufacturing hub. This proximity slashes material lead times and enables rapid production scaling.
By keeping tooling design, hot forging, CNC machining, automated electroplating, and testing in-house, we eliminate external dependencies. This high level of vertical integration gives us complete control over our quality standards and helps reduce lead times for custom product orders.
Located near major deepwater ports in Ningbo and Shanghai, our facility simplifies global logistics. We handle all customs documentation and shipping arrangements internally, ensuring smooth, on-time delivery to North American and European industrial hubs.
We engineer every valve, compression joint, and manifold to align with specific regional plumbing and environmental guidelines.
For our US and Canadian distributors, our products are engineered to conform to strict plumbing codes, lead-free requirements, and dimensional standards:
Our products meet the strict mechanical, environmental, and materials standards required for European commercial and heating markets:
Technical guidance and sourcing insights straight from our metallurgy and engineering departments.
High-integrity connection solutions built to keep commercial and residential plumbing systems flowing reliably.
