Yongda
Yongda
Explore our top-tier brass fittings, manifolds, and temperature regulation units designed for ultimate HVAC and water pipeline integrity.
Why Tier-1 industrial buyers, HVAC engineering firms, and utility networks demand absolute mechanical performance and custom options in space-constrained layouts.
As micro-fluidics, space-optimized plumbing, and sub-assembly automation grow worldwide, the demand for high-reliability miniature ball valves is accelerating. In regions like North America and the European Union, stricter environmental codes (such as lead-free compliance, NSF/ANSI 61, and RoHS directives) drive engineers to select manufacturers capable of sourcing certified alloys and executing precise tolerances.
A miniature ball valve’s primary value lies in its balance of compact design and high-pressure capacity. Common applications include boiler manifold arrays, laboratory instrumentation, underfloor heating manifolds, commercial water treatment, and pneumatic control lines. When executing high-volume procurement, technical directors look for key benchmarks: bubble-tight shutting reliability, high flow coefficients (Cv values) to prevent system pressure drops, and wear-resistant sealing mechanisms using advanced materials like pure PTFE or reinforced nylon.
Purchasing agents require more than standard components; they look for strategic production capacity, rapid lead times, and comprehensive material certification (such as ISO 9001:2015 and CE approval) to prevent project delays and ensure field safety.
Founded in 1996 and located in Yuhuan, Zhejiang—known as the "Capital of Valves in China"—Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is an established, specialized fluid control manufacturer. Over nearly three decades, we have integrated product design, precision tooling, clean casting, forging, CNC machining, and rigorous quality testing into a unified manufacturing pipeline.
Our product catalog focuses on three pillars: premium brass valves, durable pipe fittings, and smart HVAC control products. Positioned in the middle and high-grade segments, our products emphasize environmental compatibility, high corrosion resistance, and zero leakage. This makes them a preferred choice in demanding international markets like North America and Europe.
Through our dedicated premium brand, Cokaren, we carry out our brand promise: "keep flowing, keep warming". Cokaren is dedicated to manufacturing plumbing solutions with clean designs and high structural strength to keep residential and industrial heating loops safe and stable.
From commercial central heating plants to residential potable water networks, our smart systems deliver precise pressure regulation and flow control.
Utilizing lead-free brass alloys, we provide inline devices like the Y9021 Water Filter to intercept pipe impurities. This acts as the first line of defense in home plumbing while maintaining standard flow rates.
Combining the Y1001 Manifold with intelligent Y9031 Smart Thermostats and thermal actuators allows zone-by-zone temperature control. This maximizes energy efficiency in hydronic circuits.
The Y5020 Mixing Shunt combined with Y5001/Y5002 Boiler Angle Valves balances hot and cold water. This stabilizes fluid temperatures to prevent thermal stress in pipe networks.
Our engineering team designs miniature valve bodies to withstand extreme pressures and prevent leakage using automated processes.
Our raw materials undergo optical emission spectrometry testing to verify copper content and check trace elements. This ensures proper dezincification resistance (DZR) and mechanical strength under high stress.
Using 80+ sets of dedicated multi-axis machine tools, our valve spheres and internal bores are finished to micron-level roundness, reducing friction and extending the lifetime of the PTFE seats.
Our blow-out-proof stem design uses double Viton/EPDM O-rings and self-lubricating PTFE seats. This setup ensures leak-free operation under thermal expansions ranging from -15°C to 120°C.
Every batch of miniature valves is 100% pressure-tested. We apply water and high-pressure air to check seals and joints, adhering to our quality motto: "Fine work, no leakage."
Yongda Fluid Control operates under a comprehensive, certified management system: ISO9001-2015 (Quality Management), ISO14001-2015 (Environmental Management), and ISO45001-2018 (Occupational Health and Safety Management).
Our quality control program is guided by our core tenet: "Customer first, Quality based". Every engineer, machinist, and assembly line worker is trained to maintain clean production conditions, run regular calibration tests, and monitor tool wear on our CNC machines.
By balancing company growth with employee well-being, we maintain a dedicated workforce. This team operates our advanced testing lab to deliver durable, zero-leak fluid control products for clients worldwide.
Answers to common technical questions regarding miniature ball valves, custom orders, material choices, and delivery timelines.
Our valves are primarily forged from high-grade brass, such as HPb57-3, CW617N, and lead-free alloys, depending on local standards. For highly corrosive systems or specialized industries, we also manufacture stainless steel and dezincification-resistant (DZR) brass components.
We supply thread profiles to meet international standards, including ISO 228 (parallel threads), BSPT (tapered threads), and NPT for North American plumbing networks. Connection styles include female-to-female, male-to-female, male-to-male, and direct compression fittings for PE/PEX pipes.
Our "Fine work, no leakage" policy is backed by 100% pneumatic pressure testing at the assembly stage, using high-pressure air underneath water tanks. Additionally, our dual-stem O-rings and micro-machined brass balls ensure a tight seal and smooth operation over thousands of cycles.
Yes. With over 600 sets of advanced equipment and a dedicated engineering department, we design custom components based on client drawings or functional specifications. This includes adjusting valve lengths, changing handle configurations, and integrating specific temperature sensors.
Browse our full range of certified high-grade components for commercial, industrial, and residential flow systems.
