Yongda
Yongda
High-reliability, certified brass components engineered for global residential, industrial, and HVAC systems.
In standard pipeline operations, traditional ball valves store pressurized fluid inside the internal cavity of the ball when in the closed position. This trapped energy poses significant risks, particularly in pneumatic control circuits, compressed gas distribution, and chemical lines, where sudden changes in pressure or physical shock can lead to volatile outgassing, line rupture, or accidental actuator trigger events. This is where the Vented Ball Valve (also known as the exhaust or pressure-relief ball valve) becomes indispensable.
The global market demand for high-quality vented ball valves is expanding at an accelerated rate, largely driven by the modernization of industrial manufacturing processes and stricter regulatory compliance directives (such as the EU's PED 2014/68/EU). In highly developed markets such as Germany, the United States, and Japan, vented ball valves have become the benchmark standard for pneumatic systems, automated assembly lines, and HVAC networks.
As lead-free brass specifications tighten globally (for example, the NSF/ANSI 61 standard in North America), manufacturers are rapidly evolving their casting and forging techniques. Sourcing managers must balance procurement costs with material standards, resulting in a growing market share for certified Chinese manufacturers operating out of major industrial clusters like Yuhuan, Zhejiang—the recognized valve capital of China.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly known as Yuhuan Yongda Plumbing Co., Ltd.) was established in 1996 and is strategically located in Yuhuan, Zhejiang, the renowned valve production hub of China. As a premier fluid control enterprise, our capabilities encompass product design, material development, tooling production, and global commercial sales.
Our product portfolio centers on three primary categories: high-grade brass valves, brass fittings, and advanced HVAC system components. We strategically focus on the mid-to-high-end global market segment, emphasizing environmental sustainability, precision engineering, and robust certifications. As a result, our products are highly favored across North America, Europe, and neighboring global markets.
To support customers seeking superior aesthetics and optimized operation, we launched Cokaren, a dynamic brand dedicated to premium water system accessories. True to our brand promise, "keep flowing, keep warming," Cokaren is committed to introducing high-performance heating and plumbing solutions that bring comfort and safety to homes and commercial spaces globally.
For European procurement agencies and distribution networks, a CE certification is not just a mark of quality—it is a non-negotiable legal requirement under the Pressure Equipment Directive (PED) 2014/68/EU. A certified vented ball valve must undergo strict design testing, shell pressure resistance audits, and material traceability assessments to ensure safety under pressure.
Our manufacturing facility has established a comprehensive quality framework. We have obtained ISO9001:2015 (Quality Management System), ISO14001:2015 (Environmental Management System), and ISO45001:2018 (Occupational Health and Safety Management System) certifications. This ensures that every brass valve that exits our line complies with strict international environmental regulations and is safe for integration into larger systems.
Discover our specialized solutions designed to balance heat, control pressures, and maintain high efficiency in modern heating and plumbing layouts.
The modern energy distribution loop requires smart coordination between manifolds, smart thermostats, and relief valves. Our engineering catalog spans high-efficiency manifolds, thermostat sensors, automatic air vents, and manual check valves designed to protect heating circuits from air pockets, thermal cycling fatigue, and localized pressure fluctuations.
The first line of defense in domestic water sanitation, filtering 98% of impurities in the pipeline.
Request Details
Used to control the inflow and outflow of cold water and hot water in the boiler, with Spherical spool.
Request Details
Used to discharge excess air in the air source water heater to ensure stable equipment operation.
Request Details
Used to mix cold and hot water in pipes, stabilizing temperature and protecting pipeline integrity.
Request Details
Combine all system components to intelligently adjust and maintain set room temperature.
Request Details
Filters impurities, controls back-end manifold loops, and measures temperature and pressure.
Request Details
Distributes flow, balances branch networks, and coordinates with zone control systems.
Request DetailsThe manufacturing process for vented brass ball valves requires rigorous attention to material specifications. Standard brass (like CW617N or HPb59-1) is commonly selected for standard HVAC loops. However, for industrial venting and low-lead potable water lines, DZR (Dezincification Resistant) brass and lead-free alloys are increasingly required.
Below is the development timeline showing Yuhuan Yongda's path in incorporating modern engineering methods into our production workflow:
Using Computational Fluid Dynamics (CFD) to analyze exhaust pathways, optimize air release times, and reduce turbulence inside the valve body.
Utilizing multi-stage automated hot forging presses to eliminate micro-porosity, ensuring leak-free performance under pressure.
Applying nickel-plating or chrome-plating configurations to increase protection against dezincification and galvanic corrosion.
Every individual vented ball valve undergoes dual air/water pressure seat tests to guarantee a bubble-tight seal prior to packaging.
When requesting quotes for CE certified vented ball valves, procurement teams should look beyond the unit price. A complete Cost of Ownership evaluation should analyze the following criteria:
Ensure the brass grade is clearly stated. Specifying CW617N, DZR, or Lead-Free Brass avoids issues with regional safety audits.
Identify whether the design vents to the atmosphere or redirects exhaust back through dedicated collection lines. This choice affects structural cost.
Check if the valve has third-party laboratory CE certification, which simplifies system approvals in the EU.
Technical guidance and sourcing tips for engineers and purchasing managers.
Unlike standard ball valves that trap fluid inside the ball chamber, a vented ball valve has a built-in relief channel. When closed, it vents trapped downstream pressure to the atmosphere, preventing unexpected downstream actuator movement or pressure build-ups.
Yes. With over 600 sets of advanced manufacturing and testing equipment, including 80+ specialized machine tools, we provide complete ODM design and OEM custom branding for clients in North America, Europe, and globally.
Under the Pressure Equipment Directive (PED 2014/68/EU), CE marking is a mandatory requirement for pressure equipment sold in Europe. It certifies that the valve meets safety, performance, and material tracing standards.
We work with various grades of high-quality forged brass (such as CW617N, CW602N DZR, and low-lead brass) finished with chrome or nickel plating. Sealing components use durable, temperature-resistant PTFE or EPDM materials.
Browse our selection of brass valves, smart controllers, and HVAC system accessories.
