Changchun Kuancheng Boiler Air‑Vent Valve Factory (formerly Jilin Zhongquan Industrial Co., Ltd.)

The Zhongquan brand full‑auto air‑vent valve was first launched in 1985. It has won numerous honors including “Famous and High‑Quality Product of Jilin, China” and “Famous Trademark of Jilin Province” for the period from 2013 to 2019. When purchasing a reliable full‑auto air‑vent valve, please select genuine products under the Zhongquan brand and trademark!

With more than 30 years of industry experience, our company has long been engaged in the R&D and sales of full‑auto air‑vent valves, filter valves, and dual‑temperature dual‑control mixing faucets.

Corporate Culture: Innovation Corporate Philosophy: Strive continuously to be the industry pioneer Corporate Spirit: Solve problems immediately once they are identified

We maintain rigorous production processes and strict quality control to guard the first quality checkpoint for all Zhongquan customers, ensuring every valve is a premium‑quality product.