Yongda Yongda

Ball Valve Factories & Exporter

Premium Fluid Control Technology & Global OEM/ODM Solutions

The Science & Architecture of Advanced Fluid Control

Understanding the underlying engineering of high-performance brass ball valves and modern distribution technologies.

In modern industrial and residential infrastructure, control systems require robust components capable of operating flawlessly under high dynamic pressures and thermal variation. The ball valve—a quarter-turn rotational valve utilizing a spherical disc to control flow—remains the pinnacle design choice for isolation applications. By aligning physical integrity with hydrodynamic efficiency, advanced manufacturers produce valves that minimize turbulence and seal degradation over decades of service.

Achieving this level of reliability demands rigorous metal processing standards and absolute precision in tolerances. Today's commercial markets are moving rapidly toward sustainable materials, such as low-lead and lead-free brass formulations, to comply with evolving environmental guidelines in Europe and North America. In parallel, integration with electronic smart controls is redefining modern heating, ventilation, and air conditioning (HVAC) applications.

Metallurgical Superiority

Utilizing high-grade copper alloys like CW617N and HPb59-1 ensures optimal mechanical strength, corrosion resistance, and structural stability across a broad thermal range.

Precision Hot Forging

Advanced hot-forging technology eliminates internal micro-voids, delivering compact grain alignment that vastly outperforms casting techniques in tensile load capacity.

Optimized Fluid Kinematics

Internally engineered smooth passages yield high discharge coefficients (Cv value) with minimal pressure drop, decreasing pump loads and overall system energy footprint.

Yuhuan Yongda Fluid Control Factory

Pioneering Excellence Since 1996

Yuhuan Yongda Fluid Control Co., Ltd. (formerly known as Yuhuan Yongda Plumbing Co., Ltd.) was established in 1996. Our state-of-the-art facility is strategically positioned in Yuhuan, Zhejiang, renowned globally as the "China Valve Capital." Over more than two decades, we have evolved into a highly integrated, specialized enterprise driving design, R&D, advanced manufacturing, and export strategies under one roof.

Our production covers three main divisions: premium brass valves, durable piping connectors, and comprehensive heating, ventilation, and air conditioning (HVAC) accessories. Tailored strictly for high-end markets across North America and Europe, we are proud to offer high-quality environmental-friendly solutions that align with rigorous global regulations.

ISO9001-2015 ISO14001-2015 ISO45001-2018 OEM/ODM Certified
1996
Established Year
45,000+
Factory Area (㎡)
600+
Production Units
20+
Export Destinations

Cokaren: "Keep Flowing, Keep Warming"

Cokaren is the new strategic brand under Yongda Fluid Control, developed to focus entirely on precision ergonomics, premium design aesthetics, and high-tier functional specifications. Centered on the brand promise "Keep Flowing, Keep Warming," Cokaren products are optimized to establish dynamic, energy-efficient comfort profiles inside modern residential environments.

Through rigorous structural modeling, strict raw material verification, and high-end surface finishes, Cokaren has successfully positioned itself as a dynamic driver of global fluid control solutions, engineering robust security for domestic water and thermal distribution channels.

Cokaren Brand Production Line

Advantageous Industrial Ecosystem of Yuhuan, China

Leveraging the world's most concentrated brass manufacturing hub to deliver unparalleled cost efficiencies, speed to market, and technical depth.

Yuhuan, located along the East China Sea coast in Zhejiang province, accounts for more than half of China’s brass valve exports. This heavy regional concentration yields an unparalleled ecosystem of vertical supply integration. From primary smelting, hot extrusion, and multi-axis CNC precision machining, to surface treatment options like chemical pickling, nickel plating, and chrome polishing, every step of the supply chain operates in physical proximity. This geographical structure translates into low logistic overheads, rapid tooling phases, and robust production flexibility.

Furthermore, Yuhuan's local talent pool and technical universities specialize in fluid dynamics, automation engineering, and industrial metallurgy. Partnering with a manufacturer in this ecosystem ensures rapid developmental cycles for custom tooling (OEM/ODM projects) and scalable capacity ready for bulk seasonal demands.

Integrated Energy Distribution Solutions

Our customized range of distribution hardware, smart manifolds, mixing valves, and sensors tailored for hydronic systems.

Y9021 Water Filter

Y9021 Water Filter

The first line of defense in domestic water sanitation, engineered to intercept up to 98% of physical particulates and sediment in pipelines before they reach downstream controllers.

Boiler Angel Valve Y5001/Y5002

Boiler Angel Valve Y5001/Y5002

Specially configured spherical spool valves regulating the incoming cold water and outgoing hot water channels in boiler setups, optimizing long-term corrosion stability.

Y9070 Venting Valve

Y9070 Venting Valve

Automated venting system that releases accumulated air bubbles from air-source heat pumps, keeping the water flow free of vapor pockets and maintaining heat exchange efficiency.

Y5020 Mixing Shunt

Y5020 Mixing Shunt

Directs and combines cold/hot feedback loops to maintain a precise, balanced flow temperature, shielding underfloor PEX lines from destructive thermal shocks.

Y9031 Smart Thermostat

Y9031 Smart Thermostat

Centralized interface controlling zone actuators to dynamically monitor and adjust individual rooms based on real-time ambient inputs.

Y2010/Y6012 HVAC Valve

Y2010/Y6012 HVAC Valve

Multi-functional valves that isolate impurities, control flow paths for manifold assemblies, and display current system pressure and temperature gauges.

Y1001 Manifold

Y1001 Manifold

High-grade manifold block distributing water flow evenly across room circuits, integrating seamlessly with temperature controllers for balanced multi-zone regulation.

Yongda Factory Operations

Enterprise Culture & Quality Values

Corporate Culture: Built on the four pillars of Struggle, Enterprise, Pragmatism, and Innovation. We believe continuous performance improvements fuel customer satisfaction.

Core Tenet: Customer first, Quality based. By prioritizing client requirements and validating quality at every checkpoint, we establish strong global partnerships.

Quality Policy: "Fine work, no leakage." This policy translates into comprehensive test cycles where pressure tolerances are verified to ensure zero-defect packaging.

Rigorous Standards & Certifications

Operating a 45,000+ sqm manufacturing facility with heavy international exports requires compliance with global safety, quality, and environmental regulations. Our operations are fully certified under:

  • ISO9001-2015: Quality Management System ensuring systematic traceability from incoming copper ingots to final products.
  • ISO14001-2015: Environmental Management System to limit scrap metal generation, optimize wastewater purification, and lower overall energy use.
  • ISO45001-2018: Occupational Health and Safety Management System protecting our workforce and supporting safe manufacturing environments.
Yongda QA Testing Lab

Featured Product Gallery

Detailed showcase of specialty fittings, manifolds, and gate valves designed to secure your plumbing setups.

Underfloor Heating & HVAC Sub-Assemblies

Specialized flow controls, automatic balancing groups, and component options for residential hydronic manifolds.

Global Sourcing & Procurement Guidelines

Critical steps and evaluation benchmarks for B2B procurement managers sourcing industrial valves from China.

For B2B procurement officers, engineering consultants, and global distributors, choosing the right valve manufacturer requires looking beyond simple per-unit cost indicators. To build a reliable supply chain, buyers must evaluate technical parameters, raw material certificates, and quality control systems. Crucial factors include:

  1. Material Traceability: Ensure the manufacturer provides heat certificates detailing the chemical composition (specifically copper, zinc, and lead limits) of the brass bars used in production.
  2. Testing Procedures: Verify that 100% of the manufactured ball valves undergo pneumatic pressure testing (typically at 6 bar for air leak tests) and hydraulic testing (matching PN pressure classes like PN16 or PN25).
  3. Precision Machining Capabilities: Look for factories utilizing multi-axis CNC machines and automated transfer lines. These systems keep dimensional tolerances within +/- 0.02mm, ensuring consistent seal contact.
  4. OEM/ODM Flexibility: The supplier should possess the engineering capacity to customize thread types (NPT, BSP, ISO 228), handle branding requirements, and develop custom structures to match specific project specifications.

Expert Q&A: Navigating Technical Fluid Dynamics & Valve Selection

Addressing common technical inquiries from fluid engineers, system installers, and procurement specialists.

What are the key advantages of CW617N and HPb59-1 brass alloys for industrial valves?
CW617N is a European-standard leaded brass (CuZn40Pb2) optimized for hot-forging applications, providing high mechanical strength and corrosion resistance. HPb59-1 is a Chinese-standard brass widely used for domestic plumbing fittings. Both alloys offer excellent machinability, preventing stress-cracking under varying pressure conditions and ensuring compliance with targeted tensile standards in residential installations.
Why is hot-forging preferred over gravity casting for ball valve bodies?
Hot-forging subjects raw brass bars to high mechanical pressures under high temperatures, refining the metal's grain structure and eliminating potential porosity, micro-cracks, and internal voids. This produces a component with superior tensile strength and impact resistance, capable of handling higher operating pressures with thinner walls. In contrast, gravity casting can leave microscopic voids that may cause structural failure or slow leakage over time.
How does a manifold differential bypass valve optimize underfloor heating loops?
In multi-zone hydronic systems, as individual loop zone actuators close, the remaining open circuits face increased flow velocities. A differential pressure bypass valve monitors the difference in pressure between the supply and return manifolds. Once pressure limits are exceeded, it opens to divert excess flow directly to the return loop. This maintains balanced pressures, prevents pump overloading, and eliminates flow noise.
How does nickel plating enhance brass valve longevity in corrosive water conditions?
Nickel plating forms a protective barrier over the brass body, shielding it from dezincification and galvanic corrosion in highly mineralized or soft water setups. It also increases the surface hardness of the valve threads, reducing the risk of galling during installation and ensuring clean seals when using metal or plastic thread adapters.
What quality tests are critical for certifying valves for municipal distribution?
Critical checks include 100% pneumatic sealing tests (often at 6 bar for 15+ seconds) to verify bubble-tight sealing, along with high-pressure hydraulic tests to confirm rated pressure limits (typically 1.5 times the rated PN). Additionally, materials must comply with low-lead limits (e.g., NSF/ANSI 61 and lead-free regulations) to ensure safe drinking water and protect against heavy-metal leaching.
All Ball Valve Products