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About us

Handa Valve Co., Ltd. which was established in 2009 in Xiamen, and merged with Qualzess ( HUNAN GAOCI CONTROL SYSTEM TECHNOLOGY CO., LTD.  ) in 2019. Now, the factory covers 100,000 m2 workshop area and 40,000 m2 building area. The initial registered capital of company is RMB 45,000,000, the annual output value is 120,000,000. Through continual development and improvement, Handa Valve has grown up into a professional modern valve enterprise integrating design, development, production and testing. Our products are widely used in the industries of power stations, petroleum, chemical, metallurgy, natural gas, waterpower and municipal engineering etc. After the hard work of all the workers, this company has been greatly praised by customers both from home and abroad for superior quality, advanced technique, complete varieties, modern enterprise management system and excellent service.

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Founded in 2005, it is the sponsor of Xiamen Valve Industry Association. A professional R & D, manufacture and sales of high-performance butterfly valve, ball valve and its automatic control valves.


Decades of experiences

Professional R & D team

Many top national valve technical engineers with years of experience in the valve industry and engineering projects, professionally develop high-performance butterfly valves and ball valves.

Whether it is high temperature and high pressure, gas liquid solid or corrosive medium, we can provide you with integrated services from material selection to type selection.

Designed for harsh conditions


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China, Hunan Province, Changde City

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