Yongda
Yongda
Discover our heavy-duty, high-precision products optimized for industrial fluid control systems.
Founded in 1996 and located in Yuhuan, Zhejiang—widely celebrated as the "China valve capital"—Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has grown into an industry-leading player in the high-precision plumbing, hydronics, and HVAC sector. We excel at integrating structural design, raw material sourcing, automated precision manufacturing, and comprehensive testing methodologies.
Our expansive product portfolio is categorized into high-grade brass valves, custom pipeline fittings, and energy-efficient HVAC equipment. Engineered for middle-to-high-end applications, our systems focus on environment-friendly materials, strict lead-free compliance, and superior durability. This makes our solutions highly favored in stringent regulatory markets across North America, Europe, and Asia.
Under our premium brand Cokaren, we pursue our core promise: "Keep flowing, keep warming". By focusing on refined physical aesthetics, strict tolerance standards, and robust performance parameters, Cokaren has successfully transformed heating and water distribution systems in premium residential and commercial projects globally.
Pioneering smart telemetry, material science advancements, and zero-leakage configurations for next-generation steam loops.
We are integrating real-time telemetry systems directly into pilot-operated PRV heads. Equipped with high-accuracy pressure and temperature transducers, these valves monitor pressure drops and cavitation hazards dynamically. This allows utility managers to forecast wear patterns, schedule proactive maintenance, and prevent system shutdowns.
Traditional elastomeric components degrade rapidly under high steam dryness fractions and high pressure differentials. Our engineering laboratory focuses on Stellite-faced stainless steel seats and Hastelloy bellows elements. This ensures bubble-tight shutoff (Class VI according to ANSI/FCI 70-2) and extends operational life under critical cyclic conditions.
By leveraging Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD), we design internal valve contours that smooth the pathway of expanding steam. This reduces high-velocity erosion, lowers acoustic signatures (reducing noise levels by up to 15 dB), and minimizes pressure drop losses across the valve trim.
Tailoring high-performance flow control and thermal balancing for complex commercial and industrial infrastructure.
Our solutions cater directly to centralized energy networks, where managing high-temperature hot water and steam dynamics is crucial for efficiency. From high-capacity water distribution manifolds to motorized mixing shunts, our products function as key pressure control points.
In thermal networks, steam PRVs reduce high distribution pressures to lower pressure tiers suitable for secondary domestic loops, heating exchangers, and sterilization chambers. We ensure our devices provide outstanding responsiveness, high turndown ratios (up to 10:1), and high stability during peak load variations.
Additionally, our lead-free certified brass alloys and premium nickel-plating processes protect internal surfaces against dezincification and galvanic corrosion, which guarantees safety and compliance with drinking water regulations worldwide.
Over 45,000 m² of smart manufacturing infrastructure delivering structural consistency and rapid order processing.
Yongda maintains an extensive factory footprint spanning 45,000 square meters (actual usable layout exceeding 80,000 square meters). Equipped with more than 600 sets of advanced production and testing apparatus, including 80+ specialized CNC machining units, we manage all production stages internally, from hot forging to final calibration.
Every single PRV and utility valve goes through automated hydraulic and pneumatic testing to guarantee a zero-leakage profile. Our quality management systems operate under a simple policy: "Fine work, no leakage".
Integrating our manufacturing processes with Zhejiang's advanced supply chain logistics enables us to source raw materials efficiently. We can also handle large-scale custom orders (OEM/ODM) and ship products to overseas distribution centers with short lead times.
Our core corporate philosophy relies on four principles: Struggle, Enterprising, Pragmatic, and Innovative. By prioritizing customer needs and product quality above all else, we aim to match the growth of our enterprise with the personal fulfillment of our workforce.
We comply fully with international quality and safety benchmarks, holding the following system certifications:
• ISO 9001:2015 Quality Management System
• ISO 14001:2015 Environmental Management System
• ISO 45001:2018 Occupational Health and Safety Management System
These certifications verify that our engineering models, raw material logs, assembly steps, and working conditions meet global standards for safety and reliability.
Modern heating and hydronic systems require precise control over heat distribution, volume rates, and operating pressures. Our specialized product line ensures efficient thermal transfers, reduces energy waste, and protects downstream pipe systems from high pressure variations.
The first line of defense in domestic water sanitation, can filter 98% of impurities in the pipeline
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Used to control the inflow and outflow of cold water and hot water in the boiler, with Spherical spool
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used to discharge excess air in the air source water heater to ensure stable operation of the equipment
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Used to mix cold and hot water in pipes, stabilizing temperature, protect pipeline
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Used to filter and discharge impurities in the pipeline, control the switch of the back-end manifold, measure temperature and water pressure
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Distribute water flow to various rooms Combine all the equipment to adjust the room temperature
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Engineered for high reliability, efficient fluid distribution, and pressure balancing
Learn MoreOriginal series from our Cokaren brand and engineering portfolio.
One of the outstanding features is its dual function: high-flow shut-off coupled with integrated high-density mesh filtration.
The manual temperature control series provides local adjustments for hydronic radiators and heating coils.
The thermostat device regulates hot supply water by mixing it with cool return fluids to ensure continuous, safe heating.
Features structural brass chambers that split primary fluid supply into multi-zone hydronic loops.
Cokaren's heavy-duty brass garden faucet series designed with anti-corrosion components for outdoor utility setups.
Heavy-duty brass water gate valves with high-pressure female threads, ideal for isolating primary lines.
Highly durable connections that simplify integrating flow meters into municipal water lines.
High-precision adapters designed to match standard North American thread patterns and hose sizes.
Essential considerations for engineers and sourcing managers when purchasing steam PRVs and hydronic equipment.
For industrial installations, material traceability is vital. Ensure your supplier provides mill test certificates (MTC) conforming to EN 10204 3.1. These documents confirm the chemical and mechanical makeup of the brass or stainless steel alloys, guaranteeing compliance with high temperature and pressure parameters.
Avoid oversized valves, which lead to cycling instability and seat damage. Sizing should focus on maximum and minimum steam flow rates, inlet pressure levels, and targeted downstream pressures, rather than simply matching the pipe diameter. A robust design ensures steady pressure control across the entire flow spectrum.
To maximize valve life, install a steam separator and a 100-mesh Y-strainer upstream of the steam PRV. This prevents water droplets and debris from scoring the valve's seats. Additionally, including a downstream safety valve protects downstream equipment from overpressurization during maintenance or unexpected events.
Expert technical insights regarding pressure reducing valves, water filters, and HVAC accessories.
Explore additional specialized components designed for precise control, underfloor heating, and HVAC systems.
