Yongda
Yongda
Explore our elite collection of engineered brass valves, sliding union connectors, electric actuators, and distribution manifolds designed to handle high-demand heating and fluid system operations.
In the modern, highly demanding sectors of hydronic heating, industrial fluid transportation, and municipal pipeline systems, the selection of premium-grade valve union components acts as the fundamental pillar for ensuring structural integrity, minimizing leakage liabilities, and optimizing energy dissipation. As system pressures and thermal cycles continue to fluctuate wildly, standard joint connections often represent the weakest link. Industrial projects across North America, the European Union, and East Asia require specialized plumbing solutions that incorporate robust metallurgical precision, high heat-resistance polymer gaskets, and easily serviceable modular architectures.
By designing and installing advanced union connections, engineering contractors and commercial system designers eliminate complex piping overhauls during component replacement or maintenance routines. Our products serve as vital connection points that not only regulate medium flow but also allow effortless localized system isolations. Backed by state-of-the-art forging processes and rigorous quality assurance protocols, these valves are optimized for low pressure drops, superior scaling resistance, and long-term chemical compatibility with domestic water, radiant media, and gas distribution frameworks.
Founded in 1996 in the "China Valve Capital" of Yuhuan, Zhejiang, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has grown into an international powerhouse in product design, fabrication, and OEM/ODM fluid systems management.
We are a dedicated organization specializing in mid-to-high-grade brass valves, custom HVAC components, and intricate plumbing systems designed for global applications. Spanning an expansive production footprint, our operational environment features highly advanced automated machinery, dedicated engineering divisions, and specialized materials-testing labs.
Under our premium brand, Cokaren, we carry out our brand mission: "keep flowing, keep warming". Cokaren is dedicated to manufacturing beautiful, durable, and highly refined fluid management equipment, ensuring residential, commercial, and industrial facilities enjoy consistent heat distribution, safe water delivery, and lower operational overheads.
At Yuhuan Yongda, we believe that high-performance fluid systems are built on uncompromising manufacturing discipline. Our operational philosophy centers on four fundamental pillars: Struggle, Enterprising, Pragmatic, and Innovative.
Our core quality policy is simple yet strict: "Fine work, no leakage." To achieve zero-leakage, every single valve undergoes dual pneumatic-hydrostatic pressure testing before packing. This dedication guarantees that our customers receive robust valves that perform under extreme field stress. We work diligently to balance corporate growth with personal and community happiness, ensuring a sustainable future for our employees and stakeholders.
Our systems integration blueprint connects multiple flow points to form a unified, intelligent climate and hydronic control solution.
The first line of defense in domestic water sanitation, filtering 98% of incoming solid particles.
Features a specialized spherical spool to manage cold and hot water cycles directly from the boiler.
Automatically purges trapped air from radiant heating loops, maintaining stable pressure profiles.
Balances primary loop fluid temperatures, stabilizing output and protecting pipes from thermal shock.
Provides centralized loop control by adjusting flow outputs based on real-time room temperature sensors.
High-capacity valves designed for system isolation, particulate removal, and real-time monitoring.
Precisely balances flow velocity across zone loops. Seamlessly pairs with smart thermostats to maintain target room temperatures.
We address critical fluid engineering challenges using advanced metallurgical techniques, tight dimensional tolerances, and innovative polymer sealing technologies.
By using premium DZR (Dezincification Resistant) and certified lead-free brass formulations, we shield potable water setups from heavy metal contamination while meeting stringent international environmental rules.
Our fleet of automated CNC systems produces threads and union faces with micro-level precision. This tight control minimizes turbulence, limits fluid resistance, and makes on-site installation quick and hassle-free.
Our union connections feature a secondary elastomeric O-ring alongside a primary metal-to-metal contact path. This design maintains a reliable seal under changing temperatures and piping movement.
Yuhuan Yongda adheres to a comprehensive, multi-tiered framework of environmental, health, and quality system standards. We maintain formal registrations across globally recognized auditing systems to ensure our products consistently perform in demanding field applications.
✔ ISO9001:2015 — Quality Management Systems
✔ ISO14001:2015 — Environmental Management Systems
✔ ISO45001:2018 — Occupational Health & Safety Management Systems
✔ CE Mark Certification — Compliant with EN Standards for European Markets
Review detailed configurations of our specialized industrial valve fittings, mixing units, and underfloor manifold assemblies.
Combines isolation capability and a robust internal screen to trap system debris before it reaches sensitive instrumentation.
Allows manual micro-adjustments of regional line temperatures to keep climate zones consistently balanced.
A self-modulating bypass that blends hot supply and cooler return fluids to stabilize manifold temperatures.
Industrial manifold base engineered with manual valve adjusters to distribute fluids to individual zones.
Corrosion-resistant exterior outlet fixture featuring standard threads for hose attachments.
A full-port, low-resistance gate valve designed for quick and clean main-line shutoffs.
Get authoritative answers on materials selection, custom OEM manufacturing capabilities, order minimums, and shipping logistics.
We use CW617N and CW614N brass formulations for our European products, meeting regional standards. For our North American shipments, we use premium lead-free, dezincification-resistant (DZR) brass alloys. These materials undergo strict spectrometer analysis to ensure compliance with drinking water regulations and mechanical specifications.
Each valve and union component is individually pressure tested using clean dry air at 0.6 MPa to 0.8 MPa before final packing. This process ensures seal integrity and helps us maintain our quality target of "Fine work, no leakage."
With over 600 sets of advanced equipment and 80+ dedicated machine tools, we provide complete ODM/OEM services. We customize thread specifications (including NPT, BSP, and G), engrave brand logos, design unique casting patterns, and configure manifolds to match specific zone and flow requirements.
Our standard production lead time ranges from 30 to 45 days after deposit confirmation, depending on design complexity. MOQs vary by product size and tooling needs, but we remain highly flexible to support commercial distribution networks and municipal supply chains. Contact our sales team for tailored quote sheets.
Discover additional brass valves, heavy-duty gate valves, manifold replacement kits, and temperature control equipment to complete your project requirements.
