Yongda
Yongda
Explore our premium product portfolio designed for high efficiency, complete media isolation, and long-term durability in complex municipal, agricultural, and heating water supply lines.
A comprehensive overview of system engineering requirements, fluid dynamics, material standards, and structural developments shaping global pump suction performance.
A foot valve strainer represents a specialized check valve configured directly at the inlet of a pump suction pipeline. Its critical function is twofold: preventing backflow to preserve the pump’s hydraulic prime, and filtering solid contaminants that could trigger cavitation or erode internal impellers. Traditional systems relied on heavy cast iron assemblies which faced intense galvanic corrosion and dynamic pressure losses.
Today, the industry is witnessing a structural shift toward lead-free brass and dezincification-resistant (DZR) materials. Our advanced manufacturing techniques allow Yuhuan Yongda to develop integrated check valves with stainless steel or heavy brass mesh filters, balancing minimal cracking pressure requirements with excellent tensile resistance under severe hydraulic shocks.
Founded in 1996 and located in the recognized "China Valve Capital" – Yuhuan, Zhejiang, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) has grown into one of the region’s premier plumbing valve enterprises, integrating product design, development, high-volume production, and international sales operations.
Our product portfolio is divided into three strategic divisions: brass valves, precision fittings, and HVAC distribution components. We position our engineering output in the medium and high-grade segments, emphasizing ecological safety, material integrity, and compliance with the regulatory frameworks of North America, Europe, and Asia.
Under our dedicated brand, Cokaren, we are committed to engineering products with a refined appearance, tighter mechanical tolerances, and unmatched durability. Operating under the brand promise, "Keep flowing, keep warming," we manufacture water system accessories designed to secure energy efficiency and comfort in domestic and industrial environments alike.
Analyzing the infrastructure that allows Yuhuan Yongda to deliver high-quality fluid controls under tight deadlines, ensuring continuity of supply for global partners.
Yuhuan Yongda operates a modern production facility spanning more than 45,000 square meters, with actual usable space exceeding 80,000 square meters. This immense industrial footprint is backed by more than 600 sets of advanced manufacturing systems, including 80+ specialized multi-axis machine tools. This setup reduces human error, increases cycle efficiency, and maintains strict dimensional tolerances across all production runs.
Our strict quality control standard, defined as "Fine work, no leakage," is enforced across every stage of development. We process raw alloys under precise forging setups, execute finish-machining via CNC systems, and subject 100% of finished valves to hydraulic shell and seat sealing tests before packaging.
In addition, our strategic location in the Yuhuan valve capital provides us with local material access, specialized labor, and rapid logistics, allowing us to absorb market volatility and offer stable wholesale quotes even during challenging raw material supply environments.
Culture: Struggle, Enterprising, Pragmatic, Innovative
Tenet: Customer first, Quality based
Quality Policy: Fine work, no leakage
We are dedicated to building our company’s capabilities and long-term viability, consistently improving employee welfare, and aligning corporate success with individual personal development.
To support global supply requirements and guarantee high reliability, our company has implemented and maintains triple management system certifications:
Our comprehensive plumbing engineering extends from heavy pump suction foot valves to high-performance radiant heating manifolds, mixing loops, and balancing control valves.
Efficient HVAC and water distribution systems require absolute synchronization between control components, distribution manifolds, and filtering systems. Contaminants entering the loop can cause check valves to jam, score pump bearings, and block manifold micro-ports.
By installing inline Y-strainers, T-strainers, and pump-suction foot valves at strategic entry points, operators protect boiler circuits, underfloor manifold channels, and mixing shunt setups. This practice extends the lifespan of sensitive regulators like thermal actuators and automatic balancing valves.
Explore our core selection of forged brass check valves, temperature controllers, mixing shunts, manifolds, and high-performance plumbing fittings.
Features an integrated design combining isolating actions with inline sediment filtration.
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Manual and automatic balancing options to control hot water loop inputs.
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Refined Cokaren design for outdoor taps, resisting sub-zero temperatures and high wear.
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Durable isolation components featuring multi-turn operation to prevent water hammer.
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Heavy-duty thread interfaces matching NPT standards for reliable hose connections.
Learn MoreB2B Sourcing Directors face complex challenges balancing upfront acquisition costs, compliance liabilities, and ongoing maintenance footprints.
For procurement professionals, specifying a foot valve strainer requires a balance of mechanical properties and compliance standards. Suction lines operate under vacuum pressure, meaning any seal degradation or pinhole cast porosity will draw air into the fluid line, leading to pump cavitation and downstream system failure.
Key selection parameters include: Cracking Pressure (which must remain below pump suction limit to optimize NPSHa), Strainer Open-Area Ratio (recommended to be 3x to 4x the pipe cross-sectional area to minimize inlet velocity), and Alloy Grade (ensuring no trace metal contamination in sensitive process lines).
By leveraging Zhejiang's regional supply network, Yuhuan Yongda handles these engineering demands at competitive price points. Our capability to supply certified lead-free brass valves under the Cokaren brand offers global buyers a reliable route to meet local environmental laws without bearing inflated European or American production markups.
From deep-well agricultural irrigation to high-precision hydronic balance in urban heating loops, see where our fluid control technology is applied.
In rural well pumping systems, sandy water requires dynamic self-cleaning screen strainers. Yuhuan Yongda's heavy brass foot valves with micro-mesh prevent back-siphonage of agricultural chemicals while blocking sand ingress, ensuring pump integrity.
Multi-story hydronic heating systems utilize manifolds and thermostatic mixing shunts to distribute heat. The integration of inline check structures and Y-strainers safeguards control valves and actuators against scale deposition, maintaining design Delta-T values.
Municipal networks require components that prevent backflow contamination. Our lead-free brass products provide safe compliance for clean water delivery, reducing lead leaching to levels far below international regulatory limits.
Addressing the technical, material, and logistical queries standard to major B2B procurement pipelines.
Explore the second half of our specialized catalog, featuring heavy brass check valves, anti-theft taps, high-grade radiant manifolds, and temperature-control mixing systems.
