Yongda
Yongda
Precision engineered thermostats, controllers, manifolds, and advanced brass pipe fittings.
In modern fluid dynamics and municipal pipeline structures, the demand for highly reliable flow control mechanisms is skyrocketing. Galvanized Iron (GI) and high-grade engineered brass ball valves occupy a pivotal status in industrial piping system designs. Galvanization offers robust corrosion resistance against outdoor elements, while precision-forged brass internals deliver superior sealing and thermal endurance. Together, they represent the backbone of medium-pressure fluid systems worldwide.
As urbanization increases and infrastructure aging prompts updates in North America, Europe, and Asia-Pacific, industries are shifting towards valves that comply with strict chemical, physical, and environmental standards. The focus is no longer just on shut-off efficiency, but on long-term performance, dezincification resistance (DZR), and lead-free compliance.
Decoding the material science, pressure ratings, and structural features that define premium ODM GI Ball Valve production.
To guarantee structural integrity when mating with Galvanized Iron threads, the ball valve core bodies are manufactured using European standard CW617N or CW602N dezincification resistant brass. This prevents corrosion in aggressive water environments.
Engineered to support PN16, PN25, and PN40 operations. Utilizing solid chrome-plated brass spheres, these valves ensure minimal pressure drop, reduce turbulence, and maintain laminar fluid flow across diverse piping configurations.
Featuring pure virgin PTFE seats along with double EPDM O-ring stems. This hybrid seal configuration eliminates external leakage and stands resilient against temperature fluctuations from -20°C up to 120°C.
| Feature Parameter | Industrial Standard Requirement | ODM Yongda Custom Spec | Application Value |
|---|---|---|---|
| Body Material Quality | EN 12165 / CW617N / Lead-Free Brass | Verified Low-Lead CW617N / CW602N DZR | Environmental Safety & Anti-Corrosion |
| Nominal Pressure Rating | PN10 / PN16 / Class 150 | Up to PN40 (High-Pressure Resistance) | Applicable to high-rise building HVAC |
| Thread Configurations | ISO 228 / BSP / NPT | Precise CNC thread tolerance class A | Leak-proof direct connection with GI pipe |
| Cycle Life Durability | Minimum 50,000 Cycles | Tested over 100,000 trouble-free cycles | Low maintenance in public infrastructure |
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996 and is located in the "China valve capital" – Yuhuan, Zhejiang. As a prominent plumbing valve enterprise, we specialize in high-end product design, development, production, and global sales.
Our products are classified into three major categories: premium brass valves, customized pipe fittings, and smart HVAC control units. Positioned for mid-to-high-end applications, our systems highlight eco-friendly materials and are favored by professional customers in North America, Europe, and other strictly regulated markets.
With a modern factory footprint exceeding 45,000 square meters (and an actual usable production area of 80,000 square meters), the company runs more than 600 sets of advanced processing and testing systems, including 80+ dedicated special CNC machine tools. This helps us satisfy custom OEM and ODM demands and export to more than 20 countries.
Cokaren, our company's new brand, focuses on products with refined appearances and enhanced performance to deliver professional service to clients. Cokaren’s core brand promise is: "keep flowing, keep warming". We strive to bring safety, reliability, and warmth to every modern home and commercial project.
Our company values focus on being "Struggle, Enterprising, Pragmatic, and Innovative", while maintaining the quality principle of "Fine work, no leakage". We integrate team welfare with corporate growth to drive the development of high-performance fluid control accessories.
Comprehensive components optimized for municipal distribution, central heating, and home plumbing loops.
Ensuring clear flow distribution from initial filtration points down to individual room manifolds. These products are integrated to maintain pressure, balance temperature, and prevent physical sediment buildup across the pipeline networks.
First line of defense. Filters 98% of line impurities.
Spherical spool to regulate cold/hot water inflows.
Discharges excess air bubbles in water heaters.
Blends cold and hot fluids to stabilize temperature.
Central control to coordinate underfloor circuits.
Measures pressure, temp, and filters pipeline scale.
Distributes flow to various rooms with adjustments.
Adapters for high-grade performance connections.
How different regions utilize our ODM services to tackle unique installation challenges.
European regulations mandate precise temperature controls and compliance with RoHS/EN rules. Our CW617N brass components and DZR ball valves with built-in filters provide optimal flow control in centralized district heating systems, preventing iron oxide scaling.
With the EPA implementing strict lead-free rules, our high-density lead-free brass ball valves are ideal for residential potable water infrastructures. When joined with Galvanized Iron (GI) pipelines, they resist galvanic corrosion under normal operating temperatures.
Industrial plants require valves that can endure frequent actuation and pressure spikes. Our heavy-duty valve series, machined with tight tolerances, stands up to extreme conditions, minimizing operational downtime.
Quality is not an afterthought; it is our foundation. The company has passed ISO9001-2015 quality management system certification, ISO14001-2015 environmental management system certification, and ISO45001-2018 occupational health and safety management system certification.
Every batch of ODM GI ball valves undergoes rigorous pressure and air-leak testing before leaving the facility. We implement a "zero leak" policy, checking seals at both low and high pressure parameters using precise optical measurement units and hydraulic testing stations.
Detailed engineering views of Cokaren's premium product range.
How Yongda leads the industry transformation toward eco-friendly designs and smart connectivity.
Transitioning production processes to support bismuth and silicon-based lead-free brass formulations. Our objective is to exceed worldwide lead limits for drinking water while maintaining the hot-forging qualities of standard CW617N brass.
Developing motorized ball valves that interface with smart buildings. These devices will feature compact actuators utilizing Modbus and Zigbee protocols to send flow, temperature, and leakage diagnostics to central control hubs.
Targeting a 30% reduction in carbon footprint across our Yuhuan factories by utilizing automated hot forging presses and scrap metal collection loops. This ensures eco-friendly production from raw bar stock to packed valves.
Expert insights on selecting, installing, and maintaining GI and brass ball valves.
Connecting brass valves directly to GI pipes minimizes galvanic corrosion. Brass is electrochemically compatible with zinc-coated iron, avoiding the accelerated degradation common with other metals. Brass bodies also allow for high-precision CNC thread machining, preventing leaks at connection points.
CW617N is a high-grade European standard brass alloy containing copper, zinc, and a controlled lead content (typically 1.6% to 2.2%). This composition balances forgeability and machinability. It has the mechanical strength required for pressure boundaries (up to PN40) and remains stable in domestic hot water applications.
A ball valve with an integrated stainless steel strainer acts as both a shut-off valve and a filter. This dual-function design saves installation space, reduces leak points, and traps particulates like rust or welding flux. Protecting manifold circuits and thermostat actuators in this way prevents clogging and maintains system performance.
Yes. Leveraging Yuhuan Yongda's 45,000+ sqm factory and 80+ specialized CNC machining stations, we offer complete OEM/ODM options. This includes tailored thread configurations, customized pressure ratings (PN16 to PN40), branded logos, specialized packaging, and specific alloy formulations.
Explore our selection of premium quality brass nipples, actuators, and relief valves.
