Yongda
Yongda
Engineered to comply with stringent Washington State plumbing codes and NSF/ANSI low-lead standards. Explore our high-durability shutoff valve series.
Reliable dual-directional shutoff designed for municipal mainlines and building distribution systems.
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High-grade bronze/brass casting with precise throttling and isolation controls for commercial HVAC loops.
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Durable mechanical sealing gate valve perfect for underground irrigation and heavy water control applications.
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Precision-engineered soldering interfaces for leak-proof pipe joins in industrial plumbing operations.
View SpecificationsSeattle's rapid commercial construction expansion, municipal water utility upgrades, and extensive maritime industries demand high-performance stop valves and flow control elements. Due to the Puget Sound’s salty, highly humid marine climate, standard brass fittings are highly prone to rapid dezincification and premature failures.
To mitigate these risks, municipal and private plumbing systems in the Bellevue, Seattle, and Tacoma metro areas enforce compliance with lead-free mandates (Safe Drinking Water Act regulations) and require mechanical system components constructed from premium alloy materials.
Whether for hydronic underfloor heating in the dense high-rises of South Lake Union, or valve manifold systems for the marine crafts in the Port of Seattle, our factory designs stop valves, check valves, and air vents to operate under harsh, high-pressure, and corrosive conditions, ensuring uninterrupted municipal water supply and optimized heating performance.
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 an industry-leading manufacturer of plumbing valves, the company is built on a foundation of professional product design, state-of-the-art product development, comprehensive production lines, and high-efficiency global sales.
Our product lines are broadly classified into three segments: brass valves, plumbing fittings, and HVAC system accessories. Positioned for mid-to-high-end applications, these products prioritize environmental sustainability and lead-free configurations, making them a preferred choice for commercial operators across North America and Europe.
With our newly established brand, Cokaren, we are committed to delivering valves with a refined appearance, tighter sealing tolerances, and superior longevity. Grounded in our brand promise of "keep flowing, keep warming", Cokaren’s mission is to elevate residential and industrial heating efficiency worldwide.
In commercial structures, stop valves are the unsung heroes of building energy management. Below is our blueprint for smart underfloor energy distribution and HVAC temperature control, highlighting our proprietary valve and venting lines.
High-precision filtration, smart balancing, and thermal management modules.
The first line of defense in domestic water sanitation, filtering 98% of particulates and scale inside the pipeline to extend the operational life of downstream valves.
Designed to control hot and cold fluid inputs/outputs in boiler headers, utilizing a spherical brass spool to ensure zero friction wear during rapid operation cycles.
Specifically engineered to release gas pockets in air-source water heating setups, eliminating risk of cavitation and water hammer in industrial piping.
Integrates cold and hot water pathways dynamically, maintaining constant temperature output and protecting modern cross-linked polyethylene (PEX) pipelines.
Communicates with electrothermal actuators and manifolds to adjust room temperatures based on live environmental sensor data.
Manages multi-zone underfloor heating setups, venting accumulated air pockets while measuring real-time localized temperature and loop pressures.
How Yuhuan Yongda delivers world-class manufacturing scale with stringent certification processes to ensure maximum reliability and cost savings for North American distributors.
Operating over 600 pieces of advanced production and inspection machinery, including 80+ specialized CNC machining hubs. Our automated hot-forging presses compress raw brass bars into dense, high-durability housings, eliminating structural porosity and leak vectors.
Our Quality policy is clear: "Fine work, no leakage." Every valve undergoes 100% hydrostatic and pneumatic pressure testing prior to packaging. Backed by ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 systems, ensuring unmatched product safety.
Located near massive deep-water shipping lanes in Zhejiang, we offer rapid ocean freight shipping directly to the Port of Seattle. We specialize in low-lead and lead-free copper-alloy compositions designed to conform with EPA Safe Drinking Water standards.
Our enterprise is built on the core values of Struggle, Enterprising, Pragmatic, and Innovative. By putting customer satisfaction and product quality above all, we strive to build long-term value for our global distribution network.
"Efforts are continuously made to develop the company's capabilities and motivation, improve the income and welfare of our employees, and seek the alignment between company development and personal happiness."
Our state-of-the-art chemical composition lab ensures every batch of raw brass features optimal proportions of Copper (Cu), Zinc (Zn), and Trace elements. This rigorous internal audit process is why we have successfully exported our plumbing lines to over 20 nations worldwide.
Crucial technical and logistical insights for valve procurement officers, HVAC system planners, and distribution partners.
Select from our extensive product inventory featuring filtration, automatic pressure bypass, multi-zone distribution, and specialized HVAC equipment.
Dual-purpose boiler stop valve with integrated stainless steel mesh filter for debris control.
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Maintains constant flow rates and pressures while purging unwanted air bubbles from hydronic loops.
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Premium forged brass sliding connector for seamless transition joints in PEX tubing systems.
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Cost-effective industrial design for bulk installation in large-scale residential construction projects.
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Space-saving design combining isolation control and fluid filtration in one solid unit.
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Export-grade standard plumbing ball valve for reliable municipal and residential fluid stop control.
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Engineered with precise internal screw drives to control high volumes of cold/hot water flow.
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Tailor-made filtration elements for protecting industrial pumps and high-end stop valves.
View SpecificationsGet in touch with our engineering team today to receive CAD design assistance, alloy composition reports, bulk pricing models, and sample valves.
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