Yongda
Yongda
Explore our core manufacturing capabilities, featuring heavy-duty brass valves, smart hydronic actuators, and thermal control interfaces certified for international markets.
In critical engineering infrastructures, fluid management relies heavily on the reliability, response time, and integrity of Transfer Valves. Designed to redirect fluid paths between pipelines, bypass heat exchangers, or alternate filters, transfer valves are essential in maintaining zero down-time for continuous loop networks.
Whether routing hot water through underfloor heating manifolds, managing temperature stratification in high-efficiency boilers, or regulating coolant lines in HVAC systems, these valves prevent cavitation, minimize pressure drops, and guarantee optimal sealing under variable thermal stresses.
For B2B procurement engineers, sourcing premium, custom-tailored brass transfer valves is no longer a simple transactional decision. It requires a holistic review of mechanical tolerances, material science (such as lead-free and Dezincification Resistant (DZR) brass alloys), and scalable manufacturing compliance.
Integrating decades of structural design and automated manufacturing with high-grade global distribution.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996, and is strategically situated in the "China Valve Capital" – Yuhuan, Zhejiang. As an established pioneer among plumbing valve enterprises, Yongda focuses on product design, development, high-precision manufacturing, and global sales channels. Our core offerings are divided into three highly engineered divisions: brass valves, precision pipe fittings, and high-efficiency HVAC products. Positioned in the middle and high-grade global tiers, our systems prioritize environmental sustainability and lead-free compliance, making them highly favored in North America, Europe, and developed APAC markets.
Operating a massive infrastructure spanning a factory area of more than 45,000 square meters (with an actual usable production and logistical area of 80,000 square meters), Yongda houses over 600 sets of advanced production and testing equipment, including more than 80 sets of specialized, high-capacity machine tools. This formidable technical setup empowers us to customize specifications, adjust alloy compositions, and fulfill high-volume OEM/ODM projects for customers across more than 20 countries.
Yuhuan's industrial clusters represent one of the world's most concentrated brass supply chains, offering massive efficiencies in prototyping, scale, and metallurgical consistency.
Sourcing from Yuhuan Yongda Fluid Control Co., Ltd. grants global companies access to vertical manufacturing. From local casting and hot forging to final surface plating, chemical composition verification, and pneumatic testing, the entire processing loop occurs within our facilities. This localization translates to reduced raw material transportation times, absolute control over lead leaching indexes, and significantly reduced unit pricing.
Under our premium domestic and international sub-brand, Cokaren, we implement our core brand promise: "keep flowing, keep warming". Cokaren is dedicated to designing water system accessories and valves with refined exterior aesthetics and superior mechanical sealing properties, moving beyond standard hardware to deliver modern comfort and system efficiency for households globally.
Explore how our specialized components interface dynamically within complex radiant heating and hydronic cooling applications.
From the point of municipal or local water intake down to the micro-zones of radiant manifolds, our products form a cohesive, leak-proof web that protects pipelines and optimizes thermal transfer.
The first line of defense in domestic water sanitation, filtering 98% of physical impurities in incoming pipes to prevent particulate erosion inside down-stream transfer valves.
Designed to control the cold and hot water pathways at high-temperature thresholds, utilizing a hard-chromed spherical spool for smooth cycling.
Used to discharge trapped air in heat pump and boiler piping systems, preventing oxidation, air-locks, and balancing instabilities.
Manages mixing of return and supply water lines to achieve uniform temperatures, protecting flooring materials and optimizing condenser efficiency.
A smart terminal control layer communicating with motorized valve actuators to adjust individual zones in residential and commercial settings.
Multi-functional bypass valves integrating temperature, pressure sensing ports, and mechanical isolation to streamline manifold setups.
Decentralized logistics, customized alloys, and smart actuators dictate modern procurement decisions.
Global regulations (such as NSF/ANSI 61 in the US and the Drinking Water Directive in the EU) require low lead levels. Leading OEM factories utilize specialized brass compounds (like C46500 or bismuth-modified brass) to meet strict leaching thresholds.
Transfer valves are evolving from simple manual switches to motorized components. Integrating thermal-electric heads or motorized actuators linked to BMS systems enables automated temperature feedback and energy conservation.
High-velocity fluid diversion can cause localized friction, sound, and micro-erosion. Our designs minimize internal turbulence through contoured water paths and high-integrity sealing materials like EPDM and PTFE.
Ensuring defect-free delivery by aligning industrial workforce satisfaction with structural auditing.
Our operational framework relies on a distinct corporate culture defined by: Struggle, Enterprising, Pragmatic, and Innovative values, backed by a strict manufacturing pledge: "Customer first, Quality based" and a rigid QA policy: "Fine work, no leakage." We believe industrial excellence is achieved when company growth aligns with employee welfare.
Yongda holds multi-layer management certifications including ISO9001-2015 (Quality Management), ISO14001-2015 (Environmental Management), and ISO45001-2018 (Occupational Health & Safety). Every batch of raw brass is tested with an optical emission spectrometer to verify copper, zinc, and impurity levels before extrusion and forging. After machining, we perform 100% pneumatic seals and automated hydrostatic pressure testing, preventing field failures and simplifying assembly for plumbing contractors.
Our factory utilizes multi-station rotary transfer machines and CNC lathes, ensuring dimensional tolerances within micrometer limits. This precision is essential for thread engagement and sealing interfaces on compression fittings and bypass valves.
In addition, our electroplating and nickel-plating operations are managed within automated processing setups, ensuring anti-corrosion properties and satisfying salt spray resistance tests. This extends the service life of valves operating in humid basements, boiler houses, and industrial environments.
Technical clarifications for engineering firms and distribution purchasers looking to source OEM brass components.
Select options for boilers, water main management, thermal control loops, and specialized piping infrastructure.
