Yongda
Yongda
Premium components designed for global residential, commercial and industrial pipeline layouts.
An expert analysis of performance boundaries, metallurgical configuration, and structural integrity in global fluid networks.
In modern building construction, heating ventilation air conditioning (HVAC) networks, and municipal water infrastructures, the selection of isolation valves is not merely a routing operational choice. It represents a vital layer of systemic safety, flow control efficiency, and long-term asset security. Among these solutions, the Ballofix Valve stands out as a critical evolution. Known for its compact footprint, high pressure resistance, and reliable ball-turn isolation, it has become the standard for modern installations worldwide.
As a premier manufacturer and exporter, Yuhuan Yongda Fluid Control Co., Ltd. builds on this compliance. We merge rigorous metallurgy with automated manufacturing to deliver valves that go beyond minimum standards, providing real information gain and operational advantages for engineers, procurement teams, and installers worldwide.
Founded in 1996 in Yuhuan, Zhejiang—widely known as "China's Valve Capital"—Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has grown into a major force in the global valve industry. With a focus on product design, development, high-precision manufacturing, and global sales, we supply high-performance solutions across three main categories: brass valves, plumbing fittings, and HVAC distribution components.
Our brand Cokaren is built on the promise "Keep flowing, keep warming." It represents our commitment to refined designs, exceptional reliability, and comfortable climates for residential and commercial environments. Designed to perform under demanding conditions, our systems protect piping structures, optimize heating efficiency, and reduce environmental impact.
At Yuhuan Yongda, we operate under a strict quality mandate: "Fine work, no leakage." To achieve this across our production lines, we focus heavily on metallurgical quality. Standard brass valves often suffer from dezincification in aggressive water environments, leading to structural failures and leaks. To prevent this, we utilize premium CW617N and DZR (Dezincification Resistant) lead-free copper alloys, formulated to maintain their strength and integrity over decades of service.
| Material Standard | Copper (Cu) % | Lead (Pb) % | Zinc (Zn) % | Ideal Application |
|---|---|---|---|---|
| CW617N (EN 12164) | 57.0 - 59.0% | 1.6 - 2.5% | Balance | European standard heating and radiator connections. |
| CW602N (DZR) | 61.0 - 63.0% | 1.7 - 2.8% | Balance (As 0.02-0.15) | Aggressive/corrosive water systems; prevents dezincification. |
| C37700 (Lead-Free) | 58.0 - 61.0% | < 0.25% | Balance | US and North American potable water systems (NSF 61 compliant). |
Our manufacturing facilities span over 45,000 square meters, with an actual usable floor space exceeding 80,000 square meters. The plant houses more than 600 pieces of advanced production and testing equipment. Among these are 80+ specialized machine tools that handle high-tolerance CNC machining. This precision ensures that valve bodies, seals, and ball seats align perfectly, minimizing torque requirements while maximizing cycle life.
Consistent quality requires strict framework control. Yuhuan Yongda has built, implemented, and maintains a comprehensive quality control system certified to the highest international standards.
Under these frameworks, every Ballofix and HVAC valve undergoes 100% pneumatic pressure testing to guarantee air-tight seals before leaving the factory. Our specialized labs also conduct periodic burst tests and hot-cold thermal cycling to ensure outstanding field durability.
Combining filtration, thermostatic control, venting, and manifolds to achieve optimal system balance.
High Efficiency Flow Path & Distribution Unit
Protects downstream systems by preventing debris and grit from entering the circuit.
Maintains dynamic balance across heating and cooling lines for uniform distribution.
Integrates with actuators and thermostats to adjust flow rate based on demand.
Expels micro-bubbles and pocketed air to avoid cavitation and heating inefficiencies.
Acts as the first line of defense in domestic water installations, filtering out up to 98% of physical impurities and suspended solids in the pipeline.
Controls water inlet and outlet loops with an optimized spherical spool design, ensuring quick shut-off and smooth domestic hot water (DHW) service.
Continuously evacuates trapped air pockets from heat pumps, boilers, and high-altitude pipe junctions, preventing system locks and corrosion.
Mixes return and supply water to stabilize system temperatures, protecting underfloor piping from excessive thermal stress.
Acts as the system brain, coordinating actuators and zone valves to maintain precise indoor temperatures and optimize energy consumption.
A multi-functional system that filters debris, discharges air pockets, regulates header switches, and monitors pressure and temperature profiles.
Distributes hot water evenly to sub-circuits across different rooms, working in tandem with zone actuators to allow precise temperature zoning.
B2B buyers, EPC contractors, and global plumbing distributors face changing demands, driven by new regulatory requirements and supply chain challenges. When sourcing Ballofix and HVAC valves, current market trends show clear priorities:
Integrates isolation and filtration in a single compact brass body.
Manual thermal regulation valve for precise hydronic radiator balance.
Maintains stable supply temperatures in floor heating loops.
Engineered for reliable flow distribution across multiple floor zones.
As building automation and smart grids expand, flow control systems are evolving. Yuhuan Yongda's research and development focus on several key areas to meet these future demands:
1. Actuation-Ready Designs: Modifying physical ball valves to accept compact electrical actuators directly, allowing automated building management systems (BMS) to control flow zones based on occupancy data.
2. Eco-Friendly Alloys: Transitioning our brass formulation toward bismuth-based and silicon-alloyed copper. This delivers excellent machinability and durability while keeping lead content virtually at zero.
3. Precise Manufacturing: Integrating robotic forging stations and optical laser scanners to achieve dimensional tolerances within microns, resulting in lower wear on dynamic O-rings and longer service lives.
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A detailed view of custom brass components, distribution sub-assemblies, and localized connection fittings.
Addressing the critical questions of B2B procurement officers, design engineers, and systems compliance inspectors.
Explore our highly certified thermal actuators, mini ball valves, and mixing assemblies.
