Yongda
Yongda
High-performance flow-control devices optimized for Austrian building regulations and commercial heating networks.
Engineered for precise fluid balancing and water shutoff under extreme temperatures. Perfectly matches localized Austrian heating piping setups.
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Designed for premium durability and full-flow passage, providing bubble-tight shutoff in Vienna and Linz municipal district heating installations.
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Features integrated stainless steel strainer meshes. Essential for protecting sensitive HVAC equipment from sediment in complex Austrian mountain hydrology.
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Engineered for reliable isolation, utilizing top-tier dezincification-resistant (DZR) brass alloys to ensure long lifespan under harsh underfloor water cycles.
View SpecificationsFounded in 1996, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is situated in Yuhuan, Zhejiang—widely celebrated as the "China Valve Capital." Over nearly three decades, we have established ourselves as an industry-leading manufacturer specializing in the advanced engineering, design, and supply of premium brass valves, fittings, and HVAC manifolds. Our brand, Cokaren, represents our latest pursuit of refined design and world-class reliability, delivering on the promise: "keep flowing, keep warming".
With a expansive manufacturing plant covering 45,000 square meters (and actual usable space reaching 80,000 square meters), we utilize a state-of-the-art laboratory and over 600 sets of advanced machinery—including 80 specialized CNC machine tools. Our core focus centers on eco-friendly, premium-grade products that consistently meet and exceed the stringent environmental and mechanical regulations of Europe and North America.
Guided by our policy of "Fine work, no leakage," Yongda implements a strict, multi-stage Quality Assurance program that spans raw material chemical analysis to final air/water pressure leak testing. We hold prestigious global certifications to back our credibility, including:
Through robust investments in automated forging, CNC machining, and automated assembly, we maintain control over production costs while matching the material standards (such as CW617N brass) demanded by industrial clients across Austria.
The Republic of Austria stands as a leading example of environmental stewardship and advanced engineering within Europe. Characterized by severe Alpine winters, high water quality regulations, and an ambitious goal of achieving carbon neutrality by 2040, the Austrian market demands fluid control systems that offer extreme thermal efficiency, mechanical durability, and safety compliance. Standard brass valves cannot survive the rigorous operating conditions presented by localized building practices, regional district heating systems, and eco-friendly municipal water distribution networks.
In Austria, plumbing and heating systems must strictly adhere to national standards such as ÖNORM B 5014 (testing of materials in contact with drinking water) and European standards like EN 13828. These rules dictate strict limits on lead leaching and require materials that prevent dezincification (DZR). Yongda's premium valve series utilizes premium European-grade brass alloys, such as CW617N and CW602N, which are highly resistant to dezincification under demanding conditions.
Additionally, the extensive use of district heating (Fernwärme) in major cities like Vienna, Graz, and Linz places high pressure and thermal loads on distribution networks. Flow control components must withstand continuous operating temperatures of up to 120°C and transient pressures exceeding PN16/PN25. Utilizing forged brass with optimized wall thickness and double O-ring stem seals prevents structural fatigue and micro-leaks, ensuring system stability.
The global industrial valve market is undergoing a structural shift driven by digitalization and energy conservation. Modern buildings are transitioning from static hydronic networks to dynamic systems. Smart thermal balancing, variable-speed pumps, and integrated mixing systems are standard in modern construction. Consequently, valves must serve as functional elements within automated building management systems (BMS).
Yongda's engineering department has adapted to these changes by developing advanced smart thermostats (e.g., the Y9031 series) and high-precision mixing shunts that optimize heat distribution based on real-time feedback. This reduces energy usage in commercial installations and prevents thermal short-circuits—a crucial performance indicator for LEED and BREEAM certifications in Austria.
As sourcing costs rise globally, European procurement managers face the challenge of balancing high engineering standards with tight budgets. Our high-capacity facility in Yuhuan, China, addresses this challenge. Key factors that enable us to deliver high quality at competitive price points include:
How Cokaren and Yongda fluid control components integrate into localized heating and water distribution systems.
Integrating heavy-duty ball valves and venting systems into central sub-stations to manage high temperatures and variable hydronic pressures safely.
Deploying precision brass manifolds and smart thermostatic mixing loops to maintain steady indoor climates in high-altitude Austrian residences.
Utilizing lead-free brass ball valves equipped with integrated filtration elements to safeguard water sanitation and comply with ÖNORM standards.
High-tech hydronic balancing, temperature blending, and filtration products designed for modern HVAC networks.
Our advanced energy distribution loops combine smart sensors, high-precision brass manifolds, and automatic air separation mechanisms. These systems serve as the core temperature control link in energy-efficient buildings, adjusting the flow of warm/cold water dynamically to match changing heating and cooling demands.
98% particle removal for domestic plumbing sanitation.
Spherical spool design for high-performance temperature control.
Automatic micro-bubble air elimination for heating lines.
Stabilizes temperature mix parameters to protect components.
Adapts room temperature levels dynamically.
Integrated pressure, temperature, and contaminant filtering.
Distributes water flow evenly across multiple room zones.
Premium brass valves and connection accessories engineered for durability and reliable service life.
Equipped with customized ISO5211 mounting pads for easy motorized actuator integration, helping automate commercial hydronic networks.
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Robust backflow prevention devices. Designed with spring-assisted close actions to eliminate water hammer issues in high-head Alpine piping systems.
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Designed for inline installation, filtering rust and particulate matter to protect downstream mechanical valves and heat exchangers.
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Heavy-duty float valves for storage tank management. Features smooth open/close control to prevent upstream pressure spikes.
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Robust gate configuration that provides a clear flow path with minimal pressure drop. Excellent for municipal water distribution lines.
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Heavy-duty construction with a secure thread design. Provides reliable sealing and prevents frost damage in outdoor irrigation applications.
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Designed to relieve excessive pressure in domestic boilers and industrial steam lines, preventing damage to downstream equipment.
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Removes air pockets from radiant underfloor heating pipes, preventing noise, air locks, and system performance drops.
Technical DetailsExpert technical insights regarding brass valve installation, European material specifications, and quality guarantees.
To comply with European Drinking Water Directives (such as EU 2020/2184) and Austrian ÖNORM standards, we construct our sanitary and drinking water valves from certified low-lead brass alloys like CW617N and lead-free DZR brass (e.g., CW602N or CW724R). These alloys undergo chemical inspection using spectrometers to ensure lead levels and zinc content remain within safe thresholds, preventing dezincification and lead leaching.
Our quality control program operates under the directive: "Fine work, no leakage." Every single valve (100% inspection rate) is subjected to hydrostatic and pneumatic pressure tests before packaging. Typically, our standard PN16 valves are tested at a hydrostatic pressure of 24 bar and pneumatic seal pressure of 6 bar, ensuring zero leakage and long-term durability in municipal networks.
Yes. We offer extensive OEM and ODM services. We customize product bodies, dimensions, configurations, and surface treatments (nickel-plated, chrome-plated, or polished brass) according to project drawings. Our CNC centers machine threads matching ISO 228-1 (parallel G-threads) and DIN EN 10226-1 (tapered R/Rp threads), ensuring compatibility with Austrian piping components.
Standard lead time ranges from 30 to 45 days after deposit confirmation, depending on order size and custom tooling requirements. Shipping paths to Austria typically route via Ningbo or Shanghai ports, discharging at major European hubs like Hamburg or Koper, and then transporting by rail directly to Austrian logistic terminals in Vienna, Linz, or Graz.
Alpine surface water and closed-loop heating systems in Austria can accumulate suspended solids and mineral precipitates over time. A ball valve with an integrated stainless steel mesh filter acts as a barrier, preventing particulate matter from damaging heat exchanger plates, thermostatic heads, or circulation pumps, while also minimizing pressure drop across the loop.
Are you looking to optimize your procurement costs, enhance supply security, or develop custom brass valves for the Austrian or global market? Partner with Yongda and leverage our advanced manufacturing facility.