Yongda
Yongda
Explore our foundational brass valves, couplings, and hydronic system components engineered for critical applications.
In modern global manufacturing, the term "cheap" does not mean compromised engineering. Instead, it defines optimized manufacturing processes, automated production lines, and local material advantages that reduce costs without lowering performance. As a prominent control ball valve manufacturer, Yuhuan Yongda Fluid Control Co., Ltd. balances manufacturing affordability with strict quality control.
From high-rise commercial structures utilizing HVAC hydronic balancing systems to municipal water infrastructure demanding zero contamination, the core components dictate operational reliability. Our engineering focuses on eliminating pressure losses, optimizing flow coefficients (Cv values), and using advanced brass formulations.
"True efficiency in fluid control lies in the synergy of precise machining tolerances, chemical alloy stability, and scalability in high-volume production."
Industrial valve networks face strict regulations concerning lead emission and energy waste.
Integrating advanced production machinery with strict quality systems to supply high-performance valves worldwide.
Founded in 1996 in Yuhuan, Zhejiang—known as the "China valve capital"—Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has grown into an industry leader. We specialize in product design, development, production, and sales of high-performance plumbing components.
Our catalog features three main categories: brass valves, brass fittings, and advanced HVAC distribution systems. Geared toward the middle and high-grade segments, our products prioritize environmental safety, and are preferred by customers in North America, Europe, and neighboring regions.
With a massive factory footprint exceeding 45,000 square meters and a usable operational area of 80,000 square meters, Yongda operates more than 600 sets of production and testing equipment. This includes over 80 sets of specialized high-precision machine tools, allowing us to support custom OEM and ODM demands from partners in over 20 countries.
Cokaren is our premium sub-brand, focused on refined visual designs, tight manufacturing tolerances, and professional customer service.
Living by the brand promise of "keep flowing, keep warming," Cokaren develops HVAC and residential water accessories that ensure safety and warmth in homes globally. The brand drives our growth as we build an agile, customer-first international enterprise.
Yongda's business operates on core principles: Struggle, Enterprising, Pragmatic, and Innovative. Under our primary operational tenet, "Customer first, Quality based," we commit to our manufacturing motto: "Fine work, no leakage." We focus on developing our organizational capabilities while continuously improving employee well-being, aligning company growth with team happiness.
To support global trade compliance, our operations conform to international management standards, including:
Comprehensive water circulation and terminal heating control assemblies.
The first line of defense in domestic water sanitation, filtering 98% of system and piping impurities.
Controls hot and cold inlet feeds on boilers, featuring an integrated low-torque spherical spool.
Automatically purges trapped air pockets from water heat pumps to prevent cavitation and dry burns.
Blends return-loop cooling lines with primary feeds to stabilize temperatures and protect pipes.
Coordinates system devices to automatically regulate indoor zones according to demand.
Filters and discharges pipeline debris while monitoring temperature and water pressure levels.
Need customized system diagrams or component integrations? Contact our engineering desk to explore our custom brass manifold manifolds.
Industrial control ball valves regulate media flow in complex piping networks. Unlike simple shut-off valves, control ball valves must maintain precise control characteristics across varying pressure differentials. Designing affordable control valves requires optimizing material usage without compromising structural integrity.
Standard brass contains high levels of zinc, which can leach out in acidic or chlorinated water—a process called dezincification. Yongda uses specialty DZR and Lead-Free brass formulations to protect structural integrity and guarantee clean drinking water.
Our control ball valves feature profile-cut v-ports in the ball spools. This shape produces an equal percentage flow profile, preventing sudden pressure spikes and allowing precise control in thermal heating loops.
To achieve our quality target of "zero leakage," Yongda uses dual EPDM O-rings paired with adjustable PTFE packing glands. This design isolates the stem area from line pressure, preventing leaks over millions of operating cycles.
Fluid control requirements vary widely by region. Global projects must navigate different regulatory environments, plumbing standards, and climatic conditions. Yuhuan Yongda tailors its engineering to match the requirements of each destination market.
North American regulations require potable water products to be lead-free. Our PEX compression fittings and garden hose connectors use UNS C37700 and lead-free Eco-Brass alloys.
These materials resist aggressive water chemistry, complying with NSF/ANSI 61 and NSF/ANSI 372 standards for safe lead levels.
Products sold in the European Economic Area must comply with safety and environmental directives. Yongda's brass manifolds, thermal actuators, and underfloor mixing loops carry full CE marks.
Our materials meet the requirements of the RoHS Directive, which restricts hazardous substances in electrical and mechanical assemblies.
Modern building automation demands smarter flow control. Yongda is expanding its R&D into electronic hydronic balance valves and automated mixing systems. By integrating digital actuators with temperature sensors, our next-generation control systems will automatically balance flow rates to optimize HVAC energy efficiency.
Expert answers to common engineering, ordering, and material questions about control valves.
For corrosion-prone systems, we use certified Dezincification Resistant (DZR) brass alloys like CW602N. These alloys undergo thermal treatment to prevent the zinc phase from leaching, ensuring the valve remains strong in demanding water environments.
Our pricing advantage comes from operating our own automated forging and machining shops in Yuhuan, the valve capital of China. By keeping casting, forging, precision CNC machining, and final testing in-house, we eliminate intermediate markups and optimize material yield rates.
We provide complete OEM/ODM services, including CAD modeling, mold creation, custom thread sizing (NPT, BSP, ISO), and logo engraving. Our engineering team can adjust flow coefficient designs to match the performance profile of your system.
Every valve undergoes 100% pneumatic seal testing before packing and shipping. We test body integrity and seat seals at 0.6 MPa to check for bubble leakage, ensuring all products comply with our "Fine work, no leakage" quality standard.
Explore our selection of specialized compression fittings, floor heating manifolds, and check valves.
