Yongda
Yongda
Explore our premium grade plumbing, HVAC, and industrial pressure modulation assemblies, customized to reduce operating costs and extend utility lifecycle.
Within high-temperature, high-pressure industrial facilities, steam is the lifeblood of heat transport and power distribution. In order to optimize thermal efficiency and protect downline installations, control valves must regulate fluid pressure effectively. A steam pressure reducer (commonly referred to as a Steam Pressure Reducing Valve or PRV) acts as a critical line of defense, mitigating transient surges and balancing vapor tension for processing operations.
Our engineering standards ensure that steam pressure reducers maintain a precise downstream delivery pressure, regardless of primary fluctuations. For developers and global purchasers, selecting a reliable manufacturer is key to avoiding mechanical failure, erosion, and safety hazards in District Heating Networks (DHN), chemical refining plants, and massive HVAC infrastructures.
Yuhuan Yongda fluid control Co., Ltd. (formerly Yuhuan Yongda plumping Co., Ltd.) was founded in 1996, and is located in the "China valve capital" – Yuhuan, Zhejiang. As one of the premier professional plumbing valve enterprises, we focus heavily on research and development, design, and manufacturing of premium control valves.
Our solutions are structurally divided into three core categories: brass valves, fittings, and complex HVAC products. By targeting the medium to high-grade industrial demands, we engineer environmental, safe, and robust products favored by key markets in North America and Europe.
Spanning an expansive footprint, the company features a physical factory area of more than 45,000 square meters, with the actual usable production area reaching 80,000 square meters. By deploying more than 600 sets of advanced manufacturing and testing devices—including over 80 sets of specialized machine tools—Yongda seamlessly conforms to bespoke client demands, exporting state-of-the-art products to more than 20 countries.
Cokaren, as a newly established brand of our company, is committed to developing products with a more refined appearance and better quality, to provide a perfect service to customers. Cokaren's brand promise is "keep flowing, keep warming". We hope our water system accessories make comfort in your home. Cokaren is implementing its strategy to be a highly dynamic enterprise, with the aspiration for consistent growth to become a world-class brand.
Understanding why leading EPC firms and valve distributors partner with Chinese industrial hubs like Yuhuan for fluid control solutions.
Yuhuan, renowned as the "China Valve Capital," hosts an unparalleled ecosystem of foundry tooling, forging shops, plating houses, and surface processing plants. This geographic layout minimizes logistics latency, allowing Yongda to procure premium grade raw billets, DZR brass, and high-tensile springs with near-zero lead times, reducing overall costs.
With 600+ sets of machining units and 80+ specialized CNC machining tools, we bypass human-error variables. High-speed multi-axis tooling handles precision bores and thread tolerances, maintaining low unit costs without sacrificing technical conformity to standards like EN and ASME.
Our valves utilize high-grade dezincification-resistant (DZR) brass alloys and specialized seals. This structural design resists steam erosion and dezincification under high thermal stress, outperforming standard budget valves in longevity tests.
Integrating reliable controls across residential heat exchangers, commercial boilers, and large district networks. Our engineered configurations maximize energy transport efficiencies and prevent pipeline leakage.
The first line of defense in domestic water sanitation, can filter 98% of impurities in the pipeline.
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Used to control the inflow and outflow of cold water and hot water in the boiler, with Spherical spool.
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Used to discharge excess air in the air source water heater to ensure stable operation of the equipment.
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Used to mix cold and hot water in pipes, stabilizing temperature, protecting pipeline systems.
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Combines all the equipment to adjust the room temperature intelligently with digital precision.
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Filters and discharges impurities in the pipeline, controls the switch of the back-end manifold, and measures temperature and pressure.
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Distributes water flow to various zones, working with the room thermostat system for optimal HVAC balancing.
Learn More →How steam pressure regulators are utilized to safeguard global supply lines, District Heating, and precision factory operations.
For regional scale thermal plants, high pressure steam must be generated at high-volume stations and sent over long-distance networks. Prior to entering residential heat-exchange modules, our pressure reducers drop down the incoming line pressure safely. This reduces noise, stabilizes heat output, and protects delicate plate heat-exchangers from over-pressurization.
Precision is vital where clean steam is used for sterilization. Yongda's pilot-operated pressure reducers react immediately to change in downstream demand. This holds pressure variations below 0.1 bar, satisfying sanitary steam processing guidelines and securing food safety standards.
Unregulated steam lines cause moisture carry-over and hammer issues. By installing a balanced-port pressure control valve, operators can maintain dry steam saturation. This enhances the thermal performance of boiler setups and reduces chemical water treatment costs.
Integrating steam-to-water converters requires precise control of primary steam inputs. The mechanical action of the valve works alongside thermostatic mixing shunts to maintain stable water temperatures for underfloor heating networks and domestic hot water systems.
Our core operating values guide every valve that leaves our assembly floor:
We work to develop our company's capability and motivation, continuously improve the income and welfare of employees, and seek the alignment between company development and personal happiness.
Yongda maintains standardized management practices across our manufacturing plants. We have obtained certifications for:
These international accreditations guarantee that our valves and HVAC products satisfy demanding European and North American engineering and environmental criteria.
Essential guidance on selecting, sizing, installing, and maintaining pressure control valves for steam systems.
Steam pressure reducers are engineered to manage vapor expansion, high operating temperatures, and steam velocity. Unlike water valves, steam regulators must handle phase changes and prevent cavitation. They use specialized materials like DZR brass or cast steel and rely on internal pilot assemblies or metal diaphragms rather than elastomeric seals that degrade in high heat.
Valve failure is often caused by dirt or scale in the steam line, which damages the internal seat and plug. Excessive moisture in the steam can also cause wire drawing (erosion). Installing a Y-strainer and a steam separator upstream of the pressure reducer helps protect the internal components, supporting our quality policy of "fine work, no leakage."
Oversized valves can cause "hunting," where the valve continuously cycles open and closed, leading to pressure fluctuations and accelerated wear on the seat. Undersized valves will not provide enough flow to meet downstream demand. Sizing should always be based on the steam flow rate (kg/h) and pressure drop rather than the physical pipe size.
Our facility offers over 28 years of experience, vertical integration, and extensive testing capabilities. Utilizing more than 600 sets of advanced equipment, we offer cost-effective, high-quality brass valves and HVAC components. This combination of quality and efficiency helps global distributors secure reliable products at competitive prices.
Yes, all manufacturing processes are certified under ISO9001-2015, ISO14001-2015, and ISO45001-2018. Many of our core products also carry CE certification, ensuring compliance with European performance and safety directives.
Discover our range of valves, manifolds, and fittings designed to stabilize pressures and flows in domestic and commercial piping networks.
