Yongda
Yongda
Explore our premium product line manufactured under strict ISO quality controls for international markets.
Analysing regulatory frameworks, material advancements, and supply chains driving clean energy infrastructure.
In modern industrial and municipal utility structures, gas flow isolation is highly critical. A gas gate valve serves as a primary security barrier, designed to provide a completely unobstructed path for media flow when fully open and bubble-tight shut-off when closed. Because gas media (such as natural gas, LPG, and industrial biogas) present inherent combustion risks under pressure, the structural integrity of these valves determines the overall safety profile of regional supply networks.
Today, global procurement directors look past simple price configurations, prioritizing CE Certification (Compliance with the Pressure Equipment Directive 2014/68/EU) as a critical benchmark. CE marking ensures that gas valves meet rigorous European standards for material ductility, shell thickness, and pressure sealing efficiency, offering long-term risk mitigation in high-consequence environments.
CE Certification indicates compliance with the European Pressure Equipment Directive (PED) 2014/68/EU. For gas pipelines handling hazardous fluids, any valve operating under pressure must withstand critical limits without structural fatigue. The manufacturing flow must integrate traceability from raw brass ingots to finished assemblies. Elements like the bonnet, wedge, and stem undergo stress-analysis tests to prevent sudden failures.
Standard protocols under EN 331 and associated gas safety directives mandate that gate valves undergo external leak tests and internal seat closure pressure tests. High-performance brass gas gate valves are typically hot-forged, preventing microscopic porosity defects common in cheaper cast alternatives. By choosing certified CE-marked gas gate valves, engineering firms minimize civil liabilities and ensure rapid approval by local safety inspectors during commissioning.
A premier global manufacturer of brass valves, fittings, and HVAC system components since 1996.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996 in Yuhuan, Zhejiang—widely recognized as the "China Valve Capital." As a professional plumbing and gas valve manufacturer, Yongda integrates product design, development, production, and sales into a single high-efficiency facility.
Our product portfolio focuses on three core categories: brass valves, fittings, and HVAC system products. We position our products in the mid-to-high-end segment, emphasizing environmental sustainability, robust metallurgy, and high safety standards. These advantages have made us a favored supply partner for buyers across North America, Europe, and other strictly regulated international markets.
Equipped with a total usable production footprint of 80,000 square meters and over 600 sets of advanced manufacturing and testing devices (including 80+ specialized multi-axis CNC machines), we reliably satisfy diverse OEM/ODM requirements. Yongda products are exported to more than 20 countries, verifying our capacity to navigate complex international technical standards.
How China's premier valve cluster delivers cost-optimal, high-precision industrial solutions.
Our facility in Yuhuan harnesses a highly integrated supply chain network. From direct sourcing of raw materials (DZR brass, standard CW617N, and lead-free alloys) to precision hot forging and high-speed CNC machining, each production phase is optimized for speed and consistency. Automation decreases manual handling errors, ensuring that thread dimensions and seat tolerances match international standard specifications down to the micron.
Yongda's quality control framework follows a "Fine work, no leakage" philosophy. Every production lot is subject to 100% pneumatic pressure testing to identify and eliminate seal failures before packaging. This systematic approach guarantees that large-volume OEM procurement contracts are executed with near-zero defect rates.
Cokaren, a newly established premium brand of Yuhuan Yongda Fluid Control, focuses on delivering refined appearances and superior component lifetimes. With the brand promise "keep flowing, keep warming," Cokaren aims to elevate standard fluid management and water system accessories to new heights of reliability and safety. By implementing high-dynamic corporate strategies, Cokaren continues to evolve toward its goal of becoming a world-class reference brand in modern residential and commercial HVAC and gas networks.
Comprehensive system layouts optimized for efficient water heating, domestic utilities, and precise residential pressure control.
Filters 98% of pipeline impurities for home sanitation.
Spherical spool to regulate boiler cold/hot water.
Discharges excess air in air-source water heaters.
Stabilizes temperatures by mixing hot and cold water.
Unified environmental controller for room temperature.
Measures pressure, filters, and manages back-end manifolds.
Premium options selected for residential piping, hydronic floor heating, and HVAC systems.
Integrates filtration directly within a space-saving ball valve shell design.
Allows manual adjustments of warm water in modern radiator configurations.
Maintains water distribution lines within consistent safety parameters.
Engineered brass manifold structure for even underfloor temperature distribution.
Yuhuan Yongda Fluid Control operates a comprehensive operational framework certified under international benchmarks. Our facilities are certified to:
These certificates reflect our commitment to corporate responsibility, environmental sustainability, and quality assurance during every production cycle.
At Yongda, we believe that high-quality products are built on a foundation of sound corporate values. Our operations are guided by four main principles:
Culture: Struggle, Enterprising, Pragmatic, Innovative
Tenet: Customer first, Quality based
Quality Policy: Fine work, no leakage
We work to develop our company's capability and motivation, improve the income and welfare of our employees, and seek a healthy balance between business growth and personal happiness.
Key technical insights for procurement managers and gas network engineers.
Gas gate valves are exposed to varying temperatures and trace impurities present in natural gas pipelines. The selection of materials is critical. Brass alloys like CW617N (suitable for European standards) and CW602N (Dezincification Resistant or DZR brass) are preferred for their excellent mechanical strength, corrosion resistance, and high spark resistance.
Under dry or wet gas conditions, standard alloys can undergo dezincification, compromising the valve structure and leading to gas bypass. Utilizing DZR brass ensures the gate valve body, stem, and wedge remain intact for decades under constant mechanical stress.
Modern utility grids are transitioning toward automated monitoring. The traditional gas gate valve is increasingly integrated with smart actuators and remote monitoring sensors. This integration allows municipal operators to isolate line segments from central control rooms in response to pressure drops or seismic alerts.
Our research and development pipeline actively supports these changes, focusing on manufacturing high-precision valve bodies with standardized ISO top-flanges for easy coupling with electronic rotary actuators.
Technical answers to common questions about CE-certified gas gate valves and purchasing protocols.
A secondary selection of our products designed for international plumbing, heating, and HVAC networks.
