Yongda
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996 and is strategically located in Yuhuan, Zhejiang—widely recognized as the "China Valve Capital." As a leading B2B developer and manufacturer, we focus heavily on the design, material selection, precision forging, and global distribution of high-grade brass valves, fittings, and HVAC systems.
Our operational strategy centers around custom OEM/ODM solutions engineered to withstand critical municipal, industrial, and commercial demands. Our product catalogs target middle-to-high-end markets in North America, Europe, and Asia. Every product we dispatch highlights environmental protection, strict metallurgy compliance, and extreme pressure endurance.
Under our brand new, high-growth brand Cokaren, we carry forward our commitment to delivering components with refined aesthetic designs, tighter machining tolerances, and enhanced product cycles. Cokaren’s structural promise, "Keep flowing, keep warming," represents our pledge to build reliable water system components that guarantee zero leakage and continuous thermal distribution.
Our core operating philosophy rests on three pillars: Struggle, Enterprising, Pragmatic, and Innovative. With a zero-defect quality policy summarized by "Fine work, no leakage," we aim to secure complete reliability for structural projects while promoting economic welfare and personal growth for our 600+ staff members.
To assure global supply chain managers, Yuhuan Yongda holds comprehensive system accreditations:
In modern plumbing and industrial process systems, the standard IPS (Iron Pipe Size) remains a dominant sizing guideline, dictating the outer diameters of pipes and threaded connections. Historically developed for carbon steel pipes, IPS brass ball valves utilize threads that align perfectly with standard iron pipe dimensions, ensuring robust connection compatibility. As an OEM manufacturer, we design IPS brass ball valves with National Pipe Thread (NPT) or Straight Pipe Thread configurations to support tight mechanical joints in heavy-duty distribution pipelines.
Understanding the difference between IPS, CTS (Copper Tube Size), and nominal sizing is critical for commercial engineers. Our OEM ball valves are machined with structural precision, allowing them to interface smoothly with Schedule 40 and Schedule 80 threaded metal piping networks without suffering thread stripping or localized stress concentrations. This design minimizes flow resistance and maximizes pressure boundary integrity.
The global fluid control landscape is undergoing rapid transformation, driven by massive urbanization, infrastructure modernization, and tightening environmental standards. Industrial and municipal plumbing networks are moving away from traditional, heavy cast iron valves toward precision-engineered forged brass and alloy compositions. Brass remains the material of choice due to its superior ductility, corrosion resistance under thermal variations, and ease of machining.
For B2B buyers and project engineers, sourcing valves from a vertically integrated facility ensures metallurgical traceablity. North American and European building codes increasingly restrict heavy-metal exposure, making certified lead-free brass (e.g., C46500, CW617N) mandatory in drinking water systems. Manufacturers must employ advanced machinery to handle lead-free materials, which exhibit different forging behavior than standard leaded alloys.
Integrating high-flow IPS ball valves in district heating systems, modular boilers, and cooling water circuits. Designed to operate at high temperatures without gasket degradation.
Providing lead-free NSF-compliant IPS thread ball valves to municipal pipelines. Guaranteed clean-water conveyance with zero corrosion-induced heavy metal leaching.
Controlling aggressive fluids, compressed air, and non-corrosive chemical streams. Features double PTFE stem packings to eliminate the risk of fugitive emissions.
District Heating in Northern Europe: In cold-weather regions, district heating manifolds must operate continuously at pressures exceeding 10 bar and temperatures of 95°C. For these systems, Yuhuan Yongda provides specialized mixing shunts and high-temp ball valves with reinforced PTFE seals, preventing elastomer hardening and pressure loss.
Coastal Plumbing Infrastructure: High humidity and elevated salt levels cause standard brass to suffer rapid dezincification. In response, our metallurgical team produces Dezincification Resistant (DZR) brass IPS valves. These are widely deployed across North American coastal developments to prevent stress corrosion cracking.
The future of fluid control lies in the convergence of physical metallurgy and smart IoT instrumentation. Our R&D department is actively testing three major innovations:
Yuhuan Yongda's production campus spans over 45,000 square meters (actual usable space exceeds 80,000 square meters). It houses more than 600 sets of advanced manufacturing and testing apparatuses, including 80+ special machine tools. With this setup, we handle the entire valve lifecycle in-house, from hot forging and precision CNC thread cutting to automated pressure testing at 1.5x nominal ratings.
Every batch of brass rods undergoes strict spark-discharge spectrograph testing to confirm chemical compositions (Copper, Zinc, Lead, and DZR trace elements) before forging, guaranteeing full compliance with European CE and American standards.
Optimized water flow and HVAC control systems engineered for high efficiency and zero leakage.
Distribution Unit
Heat Radiator Lock
Y9021 Water Filter
First line of defense, filters 98% of impurities
Equal Tee Joint
Boiler Angle Valve Y5001/Y5002
Controls boiler cold/hot water via Spherical spool
CE Brass Plug
Y9070 Venting Valve
Discharges excess air in source heaters
Male Union Adapter
Multi-Turn Stop Valve
Compression Nipple
Y5020 Mixing Shunt
Mixes cold/hot water to stabilize temperature
Electric Radiator System
Digital Panel UI
Y9031 Smart Thermostat
Aggregates system data to adjust room temps
Y2010/Y6012 HVAC Valve
Filters line impurities, controls manifold back-end
Y1001 Manifold
Distributes flow and balances loop pressure
Double-duty isolation and filtration inline design.
Manual or thermostatic control for radiator inlets.
Self-acting thermodynamic mixing unit.
Multi-port distribution with built-in flow meters.
Heavy-duty hose bib for outdoor and industrial utility.
Wedge gate configuration for minimal pressure loss.
Threaded connector couplings for clean meter setups.
NPT to barb adapters for quick industrial hose couplings.
Answers to critical questions regarding metallurgy, thread standards, and B2B ordering requirements.
A complete listing of additional industrial components, check valves, and plumbing adapters.
Water pressure reducing valves forged piston style.
Brass safety water stop valve configuration.
Highly polished forged brass bib tap outlet.
Suitable for water kraan piping assemblies.
Advanced safety relief valves for hot water loops.
Sanitary lock ball valve for municipal sites.
Internal threaded water stop gate valves.
Integrated T Strainer system check valve.
Protects equipment from line scaling.
Equipped with high-performance brass mesh filter.
Straight-through one-way direction system safety.
Integrated mixing valve manifold unit.
Thermodynamic temperature regulation for HVAC.
Engineered for multi-room home zone setups.
Brass air vent valve safety system.
Manual air vent end plug fittings.
Automatic air release valve configuration.
Central heating degassing components.
Brass connections optimized for PE Pipe loops.
NPT and IPS standard connection nipples.