Hunan Qualzess Control System Technology Co., Ltd. is one of the leading companies specializing in the R&D, design & manufacture of a full range of INDUSTRIAL VALVES made from premium materials, including Ball valves, Check valves, Butterfly valves, Gate valves, Globe valves, Control valves and a wide range of related Accessories. Its brands include QUALZESS high-performance ball valve control valve, HANDA high-performance control butterfly valve, DESW severe working condition control valve actuator and accessories, and AUDESEN special valve. The modern QUALZESS office, engineering & manufacturing facilities, located in CHANGDE – not only the railway & air export transportation hub of center China, but a modern tourist destination from visitors globally. Presently our facilities cover an area of 40,000m2 with planned expansion of 20,000m2 to cater to the growth of our  export and domestic customers.Having commenced and continually developed the business for over 30 years, Qualzess has established a comprehensive and integrated system for designing, manufacturing, assembly, inspection and logistics of industrial valve products.Utilizing its innovative engineering & developing capability, Qualzess has already been accepted in export markets such as Europe, South America, Asia Pacific and Middle East countries. We have also been working closely with some large International brands in the production of their specific design needs.Qualzess are not only capable of producing standard and non-standard valves, but also customizing products to meet customer requirements. All products catalogued are in compliance with the latest standards and safety requirements. Various types of ball and butterfly valves are engineered and manufactured for service to customers in the Oil & Gas, Power Generation, Chemical Processing, Water and General Industries. 

Qualzess has always subscribed to manufacturing product to the highest possible quality, with international Quality assurance and ISO systems in place. Further, Qualzess valve products meet the requirements of all international oil /petrochemical companies and engineering contractors.  Appropriately, UP-TO-DATE ISO, CE, API, and TS certificates are granted for overseas exporting. 

Qualzess will continuously commit to the Research & Development of Industrial Valves in our engineering & manufacturing. We will be making every necessary effort to offer “Environment Friendly” and “Customer Oriented” products to the high quality expectations of our present and future clients.

We look forward to meeting with new ‘friends’ in our industry in order to fulfill our joint desire for mutual business growth.