Yongda
Yongda
Engineered for high durability under harsh cold conditions, designed to balance flow in complex piping networks.
Provides static hydronic balancing with micron-scale adjustment. Crucial for optimizing energy efficiency in Scandinavian buildings.
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Corrosion-resistant plastic card sleeve design with manual or thermostatic option, suitable for strict TEK17 residential standards.
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Brass end unit manifold accessory designed to exhaust pipeline pockets, protecting underfloor loops from cold spots.
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High-precision brass forging limits downstream pressure, ensuring downstream safety and structural longevity.
View Technical ParametersNorway leads the world in low-carbon initiatives and green HVAC infrastructure. With strict regulatory standards like the TEK17 building regulations, the optimization of domestic and commercial hydronic heating systems is mandatory. Whether heating is generated from air-source heat pumps, geothermal loops, or high-efficiency district heating (fjernvarme), hydronic systems must operate under balanced flow rates to maintain high Coefficient of Performance (COP) values.
Unbalanced piping networks suffer from unequal heat distribution—where rooms closer to the boiler overheat while farther zones remain freezing. This thermal disparity prompts users to increase boiler output temperatures, wasting substantial energy. Balancing valves solve this by adjusting flow coefficients (Kv values) throughout different branches, securing uniform heat delivery and reducing pump electrical consumption by up to 35%.
For maritime, aquaculture, and offshore applications along the Norwegian coastline (from Oslo to Tromsø), hardware must survive corrosive atmosphere and freezing temperatures. Standard brass parts quickly fail due to dezincification. The Norwegian market demands high-quality, corrosion-resistant DZR brass alloys (like CW602N) to ensure structural integrity and leak-proof configurations.
Bridging Chinese engineering capacity with strict European quality certifications and mechanical reliability.
Industrial operators in Norway require conformity to EN 12164/12165 standards for brass materials and ISO 228-1 thread specifications. CE certification on structural and thermal components ensures products can be integrated into large-scale commercial blueprints without regulatory delays.
Water chemistry in Norwegian municipalities, coupled with aggressive coastal air, triggers dezincification in standard brass. We utilize specialized lead-free and DZR brass formulas to prevent zinc leaching, guaranteeing the integrity of joints and seals for decades.
As modern buildings transition to smart monitoring systems, the demands on static balance valves have evolved. Industrial projects now look for hybrid setups combining pressure-independent control valves (PICVs) and manual balance locks to minimize maintenance calls.
| Valve Type / Material | Common Standard Reference | Suitable Norwegian Environment | Core Functionality |
|---|---|---|---|
| Static Brass Balancing Valve | EN 12164, CW617N / CW602N | District Heating Sub-stations (Oslo, Bergen) | Precise flow control, manual Kv coefficient locking |
| Thermostatic Radiator Valve | EN 215, CE Certified | Residential Hydronic Radiators (TEK17 compliant) | Individual zone temperature setting & energy preservation |
| DZR Brass Manifolds | ISO 9001:2015, CW602N | Underfloor Hydronic Heating loops (Timber houses) | Flow redistribution, integrated venting and draining |
| Brass Filter & Pressure Reducer | CE & ISO Standards | Main Domestic Water Inflow Lines | Removes particulates, avoids pressure surges in pipes |
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 one of the premier professional plumbing valve enterprises, we focus on product design, developmental engineering, streamlined production, and global sales pipelines.
Our core products are divided into three highly specialized categories: brass valves, brass fittings, and HVAC system components. Configured to align with middle-to-high-grade international specifications, our products focus heavily on environmental sustainability, lead reduction, and material recyclability. This dedication has made us a key supplier for demanding buyers in North America, Northern Europe, and the UK.
Under our recently established brand, Cokaren, we are committed to engineering products with refined aesthetics and superior performance characteristics. Operating under the promise of "keep flowing, keep warming", Cokaren delivers water system accessories that bring reliability and lasting warmth to modern homes.
Our manufacturing facility spans over 45,000 square meters, with actual usable space reaching 80,000 square meters. The plant integrates more than 80 specialized, high-precision machine tools alongside 600 pieces of sophisticated forging, cutting, and quality control systems. This infrastructure ensures we meet diverse client requirements and specialized customized designs.
Our operational culture centers on four core values: Struggle, Enterprising, Pragmatic, and Innovative. Under our strict policy of "Fine work, no leakage," every valve undergoes multi-stage pneumatic and hydraulic pressure testing before leaving the factory floor.
Our facilities have passed ISO9001-2015 quality management system certification, ISO14001-2015 environmental management system certification, and ISO45001-2018 occupational health and safety management system certification. By combining employee well-being with automated production, we secure steady lead times, stable pricing, and flawless production quality.
A unified blueprint designed to filter, balance, divert, and regulate municipal and residential heat loops.
First line of defense in domestic water sanitation, filtering 98% of particulates and system impurities.
Controls flow rates of hot and cold feeds into domestic water boilers, utilizing a low-torque spherical spool.
Discharges trapped air pockets in heat pump circuits, maintaining water circulation and loop pressure.
Stabilizes temperatures by mixing hot boiler supply with cold return water, protecting sensitive piping.
Smart controller linking HVAC zone actuators to balance building thermal loads on-demand.
Filters debris and enables pressure/temperature diagnosis at main manifold entry ports.
Distributes flow to multiple indoor floor heating circuits, balancing room temperatures individually.
Integrated assembly that coordinates hydronic balancing, temperature monitoring, and air venting.
Tested in challenging environmental settings, from coastal aquaculture setups to high-density modern housing complexes.
Municipal water networks in Oslo experience high dynamic pressure fluctuations. Our static balance valves allow technicians to pre-calculate and lock the target pressure differential. This safeguards system stability, ensures reliable heat delivery, and avoids flow short-circuiting in surrounding buildings.
Retrofitting historic wooden homes in Bergen with high-performance air-source heat pumps requires dynamic water flow balancing. Proper calibration via radiator valves and brass manifolds ensures uniform warmth, preventing cold drafting and optimizing seasonal heat pump COP metrics.
Vessels and onshore fish processing facilities require corrosion-resistant, robust piping systems to manage salt-laden environments. Utilizing CW602N DZR brass gate and ball valves protects installations from critical stress cracking and galvanic corrosion.
Original high-quality certified series designed for plumbing, underfloor heating, and industrial installations.
Thick-walled brass bibcock with lockable design options. Perfect for outdoor garden utility points in Nordic climates.
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ISO-threaded heavy blanking caps designed to provide robust seals on distribution manifold ends.
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Includes micro-strainer inserts to capture particulate debris before it reaches high-end plumbing fixtures.
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Deep-grooved knurling prevents spin-out and leaking during high-temperature injection molding cycles.
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Direct radiator or manifold integration for quick commissioning and troubleshooting of heating systems.
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CNC precision-cut sockets ensure trouble-free threading and rapid assembly on site.
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Multi-way union connectors optimized for water distribution and process cooling lines.
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Oxygen-barrier design preventing internal boiler corrosion, suitable for underfloor hydronic heating loops.
View CatalogGet professional answers regarding dynamic balance adjustments, DZR material selection, and importing logistics to Norway.
Soft water chemistry combined with oxygenated pipelines can leach zinc from standard brass alloys. This leaves a porous copper structure prone to cracking and pinhole leaks. Dezincification-resistant (DZR) brass prevents this galvanic process, ensuring long-term pipeline safety and structural resilience under high temperature differentials.
We manufacture all components in accordance with standard European design norms (including EN 12164/12165 for material selection and ISO 228-1 threads). Our valves hold CE certifications, allowing hassle-free integration into Scandinavian systems demanding high safety and sustainability ratings.
Static balancing valves act as a fixed restriction orifice, calibrated manually to set a specific Kv coefficient. They perform excellently in systems with constant flow rates. Dynamic balancing valves, on the other hand, automatically adjust their opening to compensate for dynamic pressure changes, ensuring a stable, constant flow rate even in variable-speed pumping loops.
We utilize 100% pneumatic testing for air tightness and hydro-pressure validation on every batch of finished valves. Using advanced coordinate measuring machines (CMM) and spectrometer alloy checking tools, we confirm tolerance configurations down to the micron level before shipping.