Yongda
Yongda
Explore our top-tier brass valves, manifold components, and filtration devices designed for optimal structural performance and system safety.
In modern industrial, commercial, and residential plumbing systems, the ball drain valve serves as a critical instrument for pressure isolation, system purging, and fluid flow direction. Featuring a spherical hollow disc inside, the ball valve controls media flow through a quick 90-degree rotational path. Standard globe and gate valves often require multiple rotations to achieve full shut-off, causing progressive seat erosion. In contrast, ball drain configurations ensure a rapid, tight seal that minimizes mechanical wear over extended cycles.
Understanding the internal dynamics of these valves is crucial for mechanical and plumbing engineers. By incorporating integrated drain ports (or purge taps), these components permit system maintenance and localized draining without compromising the main fluid loop. This configuration is widely integrated into floor heating systems, boiler systems, and industrial chemical transmission networks.
A global scale built on engineering precision, advanced testing equipment, and international standards.
With regulations tightening across North America (NSF/ANSI 61 and 372) and Europe (RoHS, REACH), lead-free brass formulations (such as CW617N, C46500, or DZR brass) have transitioned from niche options to standard compliance mandates. Leading exporters must maintain precise spectroscopic verification of alloy compositions to satisfy strict drinking water standards.
The market is rapidly shifting toward integrated smart HVAC manifolds. Standard ball drains are now paired with thermal actuators, smart thermostats, and pressure bypass loops. This convergence enables energy distribution networks to dynamically modulate temperature profiles, preventing system shock while cutting utility costs.
Procurement departments favor valve geometries featuring double O-ring stem seals (NBR/EPDM/FKM combinations) and premium PTFE seats. These configurations guarantee low actuation torque and drop-tight reliability over thousands of open-close operations, minimizing maintenance overhead in inaccessible ceiling voids or industrial utility galleries.
How Zhejiang's advanced valve clusters deliver unparalleled reliability, competitive pricing, and rapid prototype turnarounds.
Yuhuan, Zhejiang - globally recognized as the "China Valve Capital," houses a highly integrated raw material, hot-forging, CNC tooling, and surface-finishing ecosystem. This density reduces transport logistics and assembly times.
With over 80 sets of specialized machinery, automated CNC machining centers ensure dimensional tolerances of ±0.01mm. This degree of machining precision guarantees consistent thread engagements and seal fits.
Strict quality policies demand "Fine work, no leakage." Raw castings undergo hydrostatic tests, while finished assemblies are subject to pneumatic leak detection protocols to ensure 100% sealing integrity before shipping.
Founded in 1996, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is located in the valve capital of China - Yuhuan, Zhejiang. As a premier plumbing valve enterprise, Yongda structures its operations around product design, R&D, advanced forging, and global distribution.
The company specializes in three primary product divisions: brass valves, plumbing fittings, and HVAC system accessories. Positioning its products in the mid-to-high-grade segments, Yongda highlights environmental sustainability and long-term durability. These characteristics make our products popular in North America, Europe, and other strict global markets.
Our production complex spans a factory area of more than 45,000 square meters, with an actual usable workspace reaching 80,000 square meters. Operating over 600 sets of advanced manufacturing and inspection equipment, Yongda serves custom OEM/ODM pipelines for clients in over 20 countries.
"Keep flowing, keep warming" — Our dynamic new brand dedicated to refined aesthetics, superior materials, and reliable domestic comfort system accessories.
Modern hydronic energy distribution networks rely on the seamless interaction of manifold loops, venting systems, water filtration, and temperature controls.
The first line of defense in domestic water sanitation, filtering 98% of physical impurities.
Controls cold and hot water flow in boilers via a high-precision spherical spool.
Discharges trapped air from heat pumps and boilers to protect hydronic loops.
Mixes hot and cold water to stabilize floor loop temperatures and prevent thermal pipe shock.
Integrates and controls HVAC components to optimize indoor climate control zones.
Purges impurities, measures system pressure, and monitors loop temperatures.
Distributes flow across rooms to ensure balanced underfloor heating distribution.
Yongda Fluid Control is certified to international environmental and safety standards, verifying our manufacturing consistency, compliance, and workplace safety.
Culture: Struggle, Enterprising, Pragmatic, Innovative
Tenet: Customer first, Quality based
Quality Policy: Fine work, no leakage
We focus on building organizational capacity, improving employee welfare, and aligning corporate growth with personal fulfillment.
Technical parameters comparing material compositions, pressure limits, and application scenarios for plumbing procurement agents.
| Product Category | Standard Alloy | Max Operating Pressure | Temperature Limits | Application Suitability |
|---|---|---|---|---|
| Manifold Ball Valve | CW617N / DZR Brass | PN16 - PN25 | -10°C to 110°C | Floor heating circulation loops, radiant loops |
| Boiler Angle Spool Valve | HPb59-1 / CW617N | PN16 | 0°C to 95°C | Boiler feed isolation, domestic boiler inlets |
| Venting / Purging Valve | Nickel-Plated Brass | PN10 | Max 120°C | Air venting, boiler systems, solar hydronic circuits |
| PEX Compression Fittings | DZR / CW617N / Brass | PN16 | -20°C to 95°C | PEX-AL-PEX connections, radiant zone lines |
Technical answers to help plumbing project managers and import procurement officers select the right components.
Ball valves offer rapid 1/4-turn actuation, allowing quick system isolation and purging. Unlike gate valves, which require multiple handle turns and are prone to scaling around the gate seat, ball valves utilize polished brass balls and resilient PTFE seats that resist scale buildup. This ensures bubble-tight shutoff even after prolonged idle periods.
CW617N (CuZn40Pb2) is a European-grade brass alloy with hot-forging characteristics. It provides the tensile strength and corrosion resistance required to withstand high-stress environments. Its controlled lead content complies with strict European plumbing regulations while maintaining excellent machinability.
Venting valves automatically discharge air pockets trapped in hydronic circulation loops. Dissolved gases and air pockets can cause pump cavitation, metallic pipe oxidation, and uneven heat distribution. Using venting valves maintains system flow, ensures thermal efficiency, and quietens system operation.
Quality begins with raw material spectrographic inspection to confirm alloy purity. This is followed by CNC machining to keep tolerances within ±0.01mm. Finally, the valve bodies undergo dual-phase testing: hydrostatic testing at 1.5 times the rated pressure and low-pressure pneumatic air testing. These steps help ensure zero leakage across production batches.
Operating a 45,000-square-meter facility with over 600 sets of equipment allows us to manage production cycles efficiently. Our Yuhuan location near Ningbo and Shanghai ports simplifies sea freight logistics, helping us maintain consistent delivery schedules for our clients across 20+ countries.
A comprehensive range of certified plumbing and HVAC solutions engineered for commercial, residential, and industrial installations.
