Yongda
Yongda
Engineered for durability, zero leakage, and high-efficiency hydronic balancing across worldwide HVAC networks.
Maximizing thermal output and balancing hydronic loops with integrated rotary actuator technologies.
Modern commercial buildings demand highly integrated heating and cooling infrastructure. The transition from legacy configurations to integrated 4-pipe systems has elevated the importance of Six-Way Ball Valves. By combining the duties of four standard two-way valves into a unified body, six-way valves offer seamless changeover between hot water and chilled water lines to a single terminal unit, such as a chilled beam or fan coil unit (FCU).
This compact system reduces design footprint, simplifies controls by requiring only a single rotary actuator, and mitigates the risk of mixing supply flows. The valve's internal configuration manages crossover paths so that hot and cold loops remain completely isolated during the transition, preventing costly energy transfer and hydraulic imbalances.
Precision-engineered HVAC products designed for North American, European, and global markets.
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 designer and manufacturer of brass valves, fittings, and HVAC systems. Focused on high-grade components, our new brand Cokaren embodies the promise of "keep flowing, keep warming" to deliver efficiency and comfort worldwide.
Our factory spans over 45,000 square meters (with an actual usable space of 80,000 square meters) and operates 600+ units of production and testing equipment. With strict compliance under ISO9001-2015, ISO14001-2015, and ISO45001-2018 standards, we support complex mechanical changeover solutions for green building projects.
Leveraging localized supply chains, state-of-the-art forging, and advanced testing setups.
Yuhuan's industrial clusters supply premium raw brass, including CW617N, DZR, and ultra-low lead variations. CNC machining tolerances are held within 0.02mm, ensuring precise alignments and reliable sealing surfaces.
Each multi-port valve assembly is cycle-tested under pressurized flows to replicate real-world changeover demands. 100% helium leakage detection verifies sealing integrity across all flow paths.
Aligned with CE, ISO, and leading global directives, our manufacturing pipelines maintain traceability of material properties to ensure compatibility with public utility standards.
System solutions that unify control, filtration, and hydronic balancing across residential and commercial properties.
Our core design principle centers on maintaining reliable flow under varied pressure profiles. Modern energy distribution loops utilize multi-port valves, manifolds, and balancing shunts to regulate temperature across diverse zones.
By connecting smart controls, temperature sensors, and high-performance brass valves, we help minimize thermal loss in hydronic networks. We maintain the quality policy of "Fine work, no leakage" across all HVAC systems, including:
Our central control architecture bridges heating sources, manifolds, filtration, and mixing subsystems to optimize thermal output.
The primary barrier in domestic water systems, filtering out up to 98% of line impurities.
Regulates hot and cold inflows at the boiler source using a robust spherical spool design.
Releases trapped air pockets in heat-pump and boiler lines to maintain system efficiency.
Mixes supply flows to protect piping from thermal shocks and stabilize output temperatures.
Providing reliable fluid controls for green energy projects, district heating networks, and high-density developments.
Commercial and large-scale industrial spaces require adaptable HVAC setups that respond to varying regional climates. Our multi-port flow control devices and customized six-way valve integrations help modern complexes maintain precise temperature zones, reducing energy consumption and operational wear.
We support global supply chains by engineering valves tailored to specific system profiles. From custom port geometries to specialized flow rates (Cv), our engineering team works directly with distributors and contractors to build solutions that meet localized environmental standards and strict build specifications.
Detailed technical insights on six-way changeover valves, performance specifications, and custom brass manufacturing.
Engineered to optimize energy distribution and maintain reliable, zero-leak flow control.
