On the Qixi Festival, people often talk about “companionship.” Yet on the map of Chinese manufacturing, there is a deeper kind of companionship—one that inspires each other to achieve greatness.
Wu Zhong Instrument, founded in 1959, is a leading enterprise in China’s control valve industry and the country’s largest, most technologically advanced R&D and manufacturing base for control valves. Within its 80,000-square-meter facility, state-of-the-art equipment operates around the clock, forging the “sword of industrial process control.”
However, large‑space factories have their own pain points: heat buildup under the roof, air stratification, and sweltering humidity in summer. Even the most sophisticated equipment requires a cool, well‑ventilated environment to perform reliably, and even the most dedicated craftsmen need a comfortable workspace to fully immerse themselves in their work.
This was the opportunity that brought together Dawang Ventilation and Wuzhong Instrument.
In response to the high‑ceiling, large‑space characteristics of the 80,000‑square‑meter factory building, a customized ventilation solution was developed, centered around 7.3‑meter HVLS “King” fans. 7.3-meter diameter, 1.3 kW motor power, full-load airflow of 16,800 m³/min — Low rotational speed and high airflow deliver a natural‑like breeze of levels 1 to 3, helping to alleviate sweltering heat, balance indoor humidity, boost oxygen levels, and address challenges such as stuffy, humid conditions and stratified air in tall spaces. Even more reassuringly, the W.Fans series is equipped with 10+ Protection and Security System : fall‑arrest safety ring, wire‑rope winding protection, shock‑absorbing buffer device, patented connection structure, and more. In addition, critical components have undergone over 2 million overload fatigue tests, while core components have been subjected to destructive testing by authoritative agencies. After all, when it comes to equipment suspended above your head, “stability” always comes first.
Wu Zhong Instrument faces challenges with the principles of “unity, collaboration, and shared wisdom”; Dawang Ventilation embraces the mission of “making people more comfortable, air cleaner, and the environment better.” These two companies share a common vision: for Chinese manufacturing to go global, its creators must first work in Chinese factories that offer greater comfort.
On the occasion of Qixi Festival, we set aside romantic fantasies and speak instead of a more profound kind of romance:
You are the “valve” that safeguards the nation’s vital interests, while I am the “breeze” that ever watches over your side.
This is the story of Dawang Ventilation and Wuzhong Instrument, and a microcosm of how upstream and downstream enterprises in China’s manufacturing sector lift one another. Above the 80,000-square-meter factory, 7.3-meter‑diameter fan blades turn slowly, driving not just air, but also a gentle tribute from one national brand to another.
Dawang Ventilation has been deeply rooted in the HVLS industry for over a decade, offering end-to-end services that span R&D, manufacturing, and 4S maintenance. With cutting-edge technology, we are committed to ensuring smooth operations and unwavering craftsmanship in every Chinese factory.
